tag:blogger.com,1999:blog-1804978227300299812023-11-15T11:14:05.587-08:00Computer Technology ConceptsAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.comBlogger64125tag:blogger.com,1999:blog-180497822730029981.post-16915230606942981742010-09-30T02:02:00.000-07:002010-09-30T02:16:31.196-07:00State Bank of India Exam Paper - Computerरिडनडेंसी को परिभाषित कीजिए ।<br />उत्तर: एक ही डाटा को कई जगह पर सेव करना रिडनडेंसी कहलाता है ।<br /><br />डाटा माइनिंग का क्या अर्थ है ?<br />उत्तर: ग्राहक के पास स्टोर किये गए डाटा का विश्लेषण करना डाटा माइनिंग कहलाता है ।<br /><br />ग्राहक डाटाबेस में, ग्राहक का कुल नाम कहाँ डाला जाता है ?<br />उत्तर: टेक्स्ट फील्ड में<br /><br />IP Address से क्या तात्पर्य है ?<br />उत्तर: इन्टरनेट पर प्रत्येक डिवाइस का एक यूनिक IP Address होता है । इसे इन्टरनेट एड्रेस भी कहते हैं । वह उसी तरह इसकी पहचान करना है जैसे गली का पता घर की पहचान करता है ।<br /><br />क्लाइंट/सर्वर मॉडल में, क्लाइंट प्रोग्राम क्या करता है ?<br />उत्तर: सॉफ्टवेयर फाइलें दूसरे कम्प्यूटरों को सर्व करता है ।Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-3401863182244836642010-09-15T04:53:00.000-07:002010-09-15T04:55:33.521-07:00Basic Computer Questions - Bank PO Exam11. A(n)………contains commands that can be selected.<br />(A) pointer<br />(B) menu<br />(C) icon<br />(D) button<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (B)</span><br /><br />12. An error is also known as—<br />(A) bug<br />(B) debug<br />(C) cursor<br />(D) icon<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (A)</span><br /><br />13. Arithmetic Operations—<br />(A) involve matching one data item to another to determine if the first item is greater than, equal to, or less than the other item<br />(B) sort data items according to standard, predefined criteria in ascending order or descending order<br />(C) use conditions with operators such as AND, OR and NOT<br />(D) include addition, subtraction, multiplication and division<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (D)</span><br /><br />14. Sending an e-mail is similar to—<br />(A) picturing an event<br />(B) narrating a story<br />(C) writing a letter<br />(D) creating a drawing<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />15. Promotion in Marketing means—<br />(A) passing an examination<br />(B) elevation from one grade to another<br />(C) selling the products through various means<br />(D) selling the product in specific areas<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />16. Microsoft Word is an example of—<br />(A) an operating system<br />(B) a processing device<br />(C) application software<br />(D) an input device<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (B)</span><br /><br />17. Sources of Sales Leads are—<br />(A) Data Mining<br />(B) Market Research<br />(C) Media Outlets<br />(D) Promotional Programs<br />(E) All of these<br /><span style="font-weight:bold;">Ans : (E)</span><br /><br />18. Any data or instruction entered into the memory of a computer is considered as—<br />(A) storage<br />(B) output<br />(C) input<br />(D) information<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (A)</span><br /><br />19. Which part of the computer displays the work done ?<br />(A) RAM<br />(B) printer<br />(C) monitor<br />(D) ROM<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />20. Which is the part of a computer that one can touch and feel ?<br />(A) Hardware<br />(B) Software<br />(C) Programs<br />(D) Output<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (A)</span>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-12848960081875777062010-09-15T04:51:00.000-07:002010-09-15T04:53:13.954-07:00Basic Questions of Computer Science for Bank Exam1. A keyboard is this kind of device—<br />(A) black<br />(B) input<br />(C) output<br />(D) word Processing<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (B)</span><br /><br />2. IT stands for—<br />(A) information Technology<br />(B) integrated Technology<br />(C) intelligent Technology<br />(D) interesting Technology<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (A)</span><br /><br />3. Which of the following refers to the fastest, biggest and most expensive computers ?<br />(A) Personal Computers<br />(B) Supercomputers<br />(C) Laptops<br />(D) Notebooks<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (B)</span><br /><br />4. A collection of related information sorted and dealt with as a unit is a—<br />(A) disk<br />(B) data<br />(C) file<br />(D) floppy<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />5. The process of a computer receiving information from a server on the Internet is known as—<br />(A) pulling<br />(B) pushing<br />(C) downloading<br />(D) transferring<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />6. Which part of the computer helps to store information ?<br />(A) Disk drive<br />(B) Keyboard<br />(C) Monitor<br />(D) Printer<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (A)</span><br /><br />7. ………………is the process of carrying out commands.<br />(A) Fetching<br />(B) Storing<br />(C) Executing<br />(D) Decoding<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (C)</span><br /><br />8. The role of a………generally is to determine a buyer’s needs and match it to the correct hardware and software.<br />(A) computer Scientist<br />(B) computer sales representative<br />(C) computer consultant<br />(D) corporate trainer<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (B)</span><br /><br />9. Which of the following groups consist of only output devices ?<br />(A) Scanner, Printer, Monitor<br />(B) Keyboard, Printer, Monitor<br />(C) Mouse, Printer, Monitor<br />(D) Plotter, Printer, Monitor<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (D)</span><br /><br />10. The rectangular area of the screen that displays a program, data, and/or information is a—<br />(A) title bar<br />(B) button<br />(C) dialog box<br />(D) window<br />(E) None of these<br /><span style="font-weight:bold;">Ans : (D)</span>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-76812053862166821672010-09-14T22:55:00.000-07:002010-09-13T23:24:29.949-07:00How to unblock a person in OrkutYou can unblock a user by following these steps:<br /><br />1. Visit your home page and click the "lists" button under your photo.<br />2. Click the "view ignore-list" button.<br />3. Click the "remove(delete)" button next to the name of the person you would like to remove from your ignore list.<br /><br />When you unblock an orkut member, you'll be able to receive messages, scraps, testimonials and invitations from them.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-85648201059862850732010-09-14T06:04:00.000-07:002010-09-14T06:07:50.233-07:00State Bank of India PO Exam - Computer Knowledge1. The —- shows all the websites and pages that you have visited over a period of time.<br />(A) status bar<br />(B) task bar<br />(C) history list<br />(D) tool bar<br />(E) None of these<br /><span style="font-weight:bold;">ANS (C)</span><br /><br />2. A proxy server is used for the which of the following?<br />(A) To provide security against unauthorized users<br />(B) To process client requests for web pages<br />(C) To process client requests for database access<br />(D) To provide TCP/IP<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span><br /><br />3. A repair for a known software bug, usually available at no charge on the internet , is called a (n) —<br />(A) version<br />(B) Patch<br />(C) Tutorial<br />(D) FAQ<br />(E) None of these<br /><span style="font-weight:bold;">ANS (B)</span><br /><br />4. In the URL http://www.upscportal.com/, the portion labelled http is the —<br />(A) host<br />(B) domain name<br />(C) protocol<br />(D) top-level domain<br />(E) None of these<br /><span style="font-weight:bold;">ANS (C)</span><br /><br />5. Which of the following organizations has recently given a US$ 600 million loan to Power Grid Corporation of India , a Govt. run organization?<br />(A) Asian Development Bank<br />(B) World Bank<br />(C) International Monetary Fund<br />(D) Bank of America<br />(E) None of these<br /><span style="font-weight:bold;">ANS (B)</span><br /><br />6. The ability to easily add additional users means that a network is –<br />(A) Scalable<br />(B) dedicated<br />(C) Decentralized<br />(D) Secure<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span><br /><br />7. In a database , a field is a –<br />(A) lable<br />(B) table of information<br />(C) group of related records<br />(D) category of information<br />(E) None of these<br /><span style="font-weight:bold;">ANS (C)</span><br /><br />8. The number of pixels displayed on a screen is known as the screen–<br />(A) resolution<br />(B) colour depth<br />(C) refresh rate<br />(D) viewing size<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span><br /><br />8. Word processing , spreadsheet , and photo-editing are example of –<br />(A) application software<br />(B) system software<br />(C) operating system software<br />(D) platform software<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span><br /><br />9. If you wish to extend the length of the network without having the signal degrade, you would use a —<br />(A) repeater<br />(B) router<br />(C) gateway<br />(D) switch<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span><br /><br />10. A—- is approximately a million bytes.<br />(A) gigabyte<br />(B) kilobyte<br />(C) megabyte<br />(D) terabyte<br />(E) None of these<br /><span style="font-weight:bold;">ANS (C)</span><br /><br />11. The time it takes a device to locate data and instructions and make them available to CPU is known as –<br />(A) clock speed<br />(B) a processing cycle<br />(C) CPU speed<br />(D) access time<br />(E) None of these<br /><span style="font-weight:bold;">ANS (D)</span><br /><br />12. ——– controls the way in which the computer system functions and provides a means by which users are interact with the computer.<br />(A) The platform<br />(B) The operating system<br />(C) Application software<br />(D) The motherboard<br />(E) None of these<br /><span style="font-weight:bold;">ANS (B)</span><br /><br />13. ——– means that the data contained in a database is accurate and reliable.<br />(A) Data redundancy<br />(B) Data integrity<br />(C) Data reliability<br />(D) Data consistency<br />(E) None of these<br /><span style="font-weight:bold;">ANS (B)</span><br /><br />14. A(n) —— is a private corporate network, used exclusively by company employees.<br />(A) Internet<br />(B) local area network<br />(C) peer-to-peer<br />(D) intranet<br />(E) None of these<br /><span style="font-weight:bold;">ANS (B)</span><br /><br />15. A characteristic of a file server is which of the following?<br />(A) Manages file operations and is shared on a network<br />(B) Manages file operations and is limited to one PC<br />(C) Acts as fat client and is shared on a network<br />(D) Acts as fat client and is limited to one PC<br />(E) None of these<br /><span style="font-weight:bold;">ANS (A)</span>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-3689668864012894762010-09-13T04:12:00.000-07:002010-09-13T23:24:07.131-07:00TeamViewerTeamViewer is a computer software package for remote control, desktop sharing, and file transfer between computers. This software operates with Microsoft Windows, Mac OS X[1][2], and Linux[3].This is able to function while the computers are protected by firewalls and NAT proxy.<br /><br />TeamViewer connects to any PC or server around the world within a few seconds. You can remote control your partner's PC as if you were sitting right in front of it.<br />You can start with it. It's free with full version. Go to <a href="http://www.teamviewer.com/index.aspx">TeamViewer</a> and download it.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-9767104098475843022010-09-12T04:54:00.000-07:002010-09-13T23:22:58.474-07:00Some C++ Interview Questions<span style="font-weight: bold;">1. What do you mean by Stack unwinding ?</span><br /><br /><span style="font-weight: bold;">Ans:</span> It is a process during exception handling when the destructor is called for all local objects between the place where the exception was thrown and where it is caught.<br /><br /><span style="font-weight: bold;">2. Define precondition and post-condition to a member function.</span><br /><br /><span style="font-weight: bold;">Ans:</span> Precondition: A precondition is a condition that must be true on entry to a member function. A class is used correctly if preconditions are never false. An operation is not responsible for doing anything sensible if its precondition fails to hold. For example, the interface invariants of stack class say nothing about pushing yet another element on a stack that is already full. We say that isful() is a precondition of the push operation. Post-condition: A post-condition is a condition that must be true on exit from a member function if the precondition was valid on entry to that function. A class is implemented correctly if post-conditions are never false. For example, after pushing an element on the stack, we know that isempty() must necessarily hold. This is a post-condition of the push operation.<br /><br /><span style="font-weight: bold;">3. What is polymorphism?</span><br /><br /><span style="font-weight: bold;">Ans:</span> Polymorphism is the idea that a base class can be inherited by several classes. A base class pointer can point to its child class and a base class array can store different child class objects.<br /><br /><span style="font-weight: bold;">4. How do you find out if a linked-list has an end? (i.e. the list is not a cycle)</span><br /><br /><span style="font-weight: bold;">Ans:</span> You can find out by using 2 pointers. One of them goes 2 nodes each time. The second one goes at 1 nodes each time. If there is a cycle, the one that goes 2 nodes each time will eventually meet the one that goes slower. If that is the case, then you will know the linked-list is a cycle.<br /><br /><span style="font-weight: bold;">5. What is Boyce Codd Normal form ?</span><br /><br /><span style="font-weight: bold;">Ans:</span> A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a->b, where a and b is a subset of R, at least one of the following holds:Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-68395702430109975672010-09-12T01:47:00.000-07:002010-09-13T23:23:45.251-07:00Objective Type Computer Science Questions for Public Sector Recruitment Exam1. The problem of fragmentation arises in<br />(a) static storage Allocation<br />(b) stack allocation of storage<br />(c) stack allocation with dynamic binding<br />(d) Heap allocation<br /><br />Ans: (d)<br /><br />2. The process of organizing the memory into two banks to allow 8 and 16-bit data operation is called<br /><br />a. Bank Switching<br />b. Indexed Mapping<br />c. Two-way memory interleaving<br />d. Memory segmentation<br /><br />Ans: (c)<br /><br />3. Memory refreshing may be done<br /><br />a. by the CPU that contains a special regress counter, only<br />b. by an external refresh controller, only<br />c. either by the CPU or by an external refresh controller<br />d. none of the above<br /><br />Ans: (c)<br /><br />4. The use of hardware in memory management is through segment relocation and protection is<br /><br />a. to perform address translation to reduce size of the memory<br />b. to perform address translation to reduce execution time overhead<br />c. both (a) and (b)<br />d. none of the above<br /><br />Ans: (c)<br /><br />5. Thrashing occurs when<br /><br />a. too much of the time is spent in waiting to swap between memory and disk<br />b. two processes try to access the same resource<br />c. the size of the data to be inserted is less than the size of a page in memory<br />d. the processor's mapping table discovers that the program is trying to use an address that doesn't currently exist<br /><br />Ans: (a)Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-16600658394641159932010-09-12T01:03:00.000-07:002010-09-13T23:23:21.250-07:00C++ Interview<span style="font-weight: bold;">1. What is an adaptor class or Wrapper class?</span><br />Ans: A class that has no functionality of its own. Its member functions hide the use of a third party software component or an object with the non-compatible interface or a non-object-oriented implementation.<br /><br /><span style="font-weight: bold;">2. What is a Null object?</span><br />Ans: It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an object.<br /><span style="font-weight: bold;"><br />3. What is class invariant?</span><br />Ans: A class invariant is a condition that defines all valid states for an object. It is a logical condition to ensure the correct working of a class. Class invariants must hold when an object is created, and they must be preserved under all operations of the class. In particular all class invariants are both preconditions and post-conditions for all operations or member functions of the class.<br /><br /><span style="font-weight: bold;">4. Differentiate between the message and method.</span><br />Ans:<br />Message:<br />* Objects communicate by sending messages to each other.<br />* A message is sent to invoke a method.<br /><br />Method<br />* Provides response to a message.<br />* It is an implementation of an operation.<br /><br /><span style="font-weight: bold;">5. What is a dangling pointer?</span><br />Ans: A dangling pointer arises when you use the address of an object after<br />its lifetime is over. This may occur in situations like returning<br />addresses of the automatic variables from a function or using the<br />address of the memory block after it is freed.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-67267012876785823222010-09-12T00:02:00.000-07:002010-09-13T23:22:36.098-07:00Bank IT Officer Exam Papers1. The model which provides a concrete expression of these concepts by means of two fundamental ideas — logical records and links, is called a<br /><br />A. relationship model<br />B. network model<br />C. hicrachical model<br />D. none of the above<br /><br />2. The network model has been established by<br /><br />A. CODASYL committee<br />B. IBM<br />C. ECA<br />D. none of the above<br /><br />3. A link may be defined as the representation of an<br /><br />A. objects <br />B, programs<br />C. association <br />D. none of the above<br /><br />4. DML is intended provide operations which ope- rate upon data stored in the<br /><br />A, file <br />B. record<br />C. database <br />D. none of the above<br /><br />5. In the hierarchical model a hierarchical schema is defined by a tree whose nodes are<br /><br />A. database <br />B. logical record types<br />C. links <br />D. none of the above<br /><br />6. The set of all values in the relations represents the contents of the<br /><br />A. database <br />B. record file<br />C. table <br />D. none of the above<br /><br />7. In hierarchical data model, the database is represented by<br /><br />A. a directed graph <br />B. tree structures<br />C. relation <br />D, none of the above<br /><br />8. A Database Management System (DBMS) is a software system capable of supporting and managing any number of independent<br /><br />A. results<br />B. relations<br />c. none of the above<br /><br />9. Support for data independence is arguably the most important feature of a<br /><br />A system <br />B. database system<br />C. relation <br />D. none of the above<br /><br />10. Distinct levels of data independence arc<br /><br />A. two <br />B. three<br />C. four <br />D. none of the above<br /><br />11. Database software may be divided into<br /><br />A. four distinct categories<br />B. three distinct categories<br />C. two distinct categories<br />D. none of the above<br /><br />12. Any large software project may be divided into several<br /><br />A. project phases<br />B. sub projects<br />C. hardware <br />D. none of the above<br /><br />13. Data modeling occupies an important position in the<br /><br />A. database file <br />B. database life cycle<br />C. relation <br />D. none of the above<br /><br />14. The term "software engineering" implies the application of scientific knowledge and discipline to the construction of<br /><br />A. database record<br />B. computer hardware system<br />C. computer software system<br />D. none of the above<br /><br />15. Program correctness has been a strong motivation for much of the work in software engineering and<br /><br />A. high-level language programming<br />B. programming language design<br />C. Pascal<br />D. none of the above<br /><br />ANS:<br />1. B<br /><br />2. A<br /><br />3. B<br /><br />4. B<br /><br />5. B<br /><br /><br />6. A<br /><br />7. B<br /><br />8. C<br /><br />9. Do Yourselves<br /><br />10. Do Yourselves<br /><br />11. B<br /><br />12. A<br /><br />13. B<br /><br />14. C<br /><br />15. BAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-17536876012384370212010-09-11T01:50:00.000-07:002010-09-13T23:22:10.408-07:00C++ Interview Questions<span style="font-weight: bold;">1. What is the word you will use when defining a function in base class to allow this function to be a polimorphic function?</span><br /><br />Ans: virtual<br /><br /><span style="font-weight: bold;">2. What do you mean by binding of data and functions?</span><br /><br />Ans: Encapsulation.<br /><br /><span style="font-weight: bold;">3. What is the difference between an object and a class?</span><br /><br />Ans: Classes and objects are separate but related concepts. Every object belongs to a class and every class contains one or more related objects.<br /><br />- A Class is static. All of the attributes of a class are fixed before, during, and after the execution of a program. The attributes of a class don't change.<br />- The class to which an object belongs is also (usually) static. If a particular object belongs to a certain class at the time that it is created then it almost certainly will still belong to that class right up until the time that it is destroyed.<br /><br />- An Object on the other hand has a limited lifespan. Objects are created and eventually destroyed. Also during that lifetime, the attributes of the object may undergo significant change.<br /><br /><span style="font-weight: bold;">4. What is a class ?</span><br /><br />Ans: Class is a user-defined data type in C++. It can be created to solve a particular kind of problem. After creation the user need not know the specifics of the working of a class.<br /><br /><span style="font-weight: bold;">5. What is friend function ?</span><br /><br />Ans: As the name suggests, the function acts as a friend to a class. As a friend of a class, it can access its private and protected members. A friend function is not a member of the class. But it must be listed in the class definition.<br /><br /><span style="font-weight: bold;">6. Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array?</span><br /><br />Ans: Mergesort always makes recursive calls to sort subarrays that are about half size of the original array, resulting in O(n log n) time.<br /><br /><span style="font-weight: bold;">7. What is abstraction?</span><br /><br />Ans: Abstraction is of the process of hiding unwanted details from the user.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-33659832275909769772010-09-11T01:39:00.000-07:002010-09-13T23:21:39.243-07:00What is Index?A database index is a data structure which use to improve the speed of operations on a database table.<br /><br />It’s a physical structure containing pointers to the data. Indices can be created using one or more columns of a database table. Indices are created in an existing table to quickly and efficiently lookups.<br /><br />It is possible to create an index on one or more columns of a table, and each index is given a name. Best way to improve performance in a database application is effective indexes.<br /><br />There are two type of index available.<br /><br />1. <span style="font-weight: bold;">Clustered index</span><br /><br />Clustered index are physical form of sorting. Therefore only one clustered index can be created on each table because the data rows themselves can only be sorted in one order.<br /><br /><br />2. <span style="font-weight: bold;">Non Clustered index</span><br />Non clustered indexes are logical form of sorting. Therefore more than one Non clustered indexes can be created on each table.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-82407104844922009832010-09-10T00:02:00.000-07:002010-09-13T23:21:15.761-07:00Operating System Interview Questions Answers<span style="font-weight: bold;">What is difference between NTFS & FAT32? </span><br /><br /><span style="font-weight: bold;">Ans:</span> NTFS stands for new technology file system or network technology file system. In NTSF partition size can be of 2 TB or more. and file size can be 16 TB. file/folder encryption is done. and it supports file name character upto 255.<br /><br />FAT32 stands for File allocation table. in FAT32 partition size can be Upto 2 TB. and file size can be 4 GB. file/folder encryption is not possible in FAT32. and it supports file name character upto 8.3.<br /><br /><span style="font-weight: bold;">What is the difference XP and Windows 2000? </span><br /><br /><span style="font-weight: bold;">Ans:</span> Windows XP is some what faster than Windows 2000, assuming you have a fast processor and tons of memory (although it will run fine with a 300Mhz Pentium II and 128MB of RAM).<br /><br />The new Windows XP interface is more cheerful and colorful than earlier versions, although the less-cartoony "Classic" interface can still be used if desired.<br />Windows XP has more bells and whistles, such as the Windows Movie Maker, built-in CD writer support, the Internet Connection Firewall, and Remote Desktop Connection.<br />Windows XP has better support for games and comes with more games than Windows 2000.<br />Windows XP is the latest OS - If you don't upgrade now, you'll probably end up migrating to XP eventually anyway, and we mere mortals can only take so many OS upgrades.Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-65326463338380126242010-09-09T01:04:00.000-07:002010-09-13T23:20:44.865-07:00Delhi Metro Rail Corporation Limited Recruitment Exam1. Parameter passing mechanism for an array is<br />a. call by value b. call by value and call by reference<br />c. call by reference d. none of the above<br /><br />Ans: (a)<br /><br />2. Use of functions<br />a. help to avoid repeating a set of instructions many times<br />b. enhance the logical flow of the program<br />c. makes the debugging task easier<br />d. all of the above<br /><br />Ans: (d)<br /><br />3. Storage class defines<br />a. the data type<br />b. the scope<br />c. the scope and performance<br />d. the scop, performance and data type<br /><br />Ans: (c)<br /><br />4. The use of macros in place of functions<br />a. reduces execution times<br />b. reduces code size<br />c. increases execution time<br />d. increase code size<br /><br />Ans: (a)<br /><br />5. Scope of macro definition<br />a. cannot be beyond the file in which it is defined<br />b. may be part of a file<br />c. is in the entire program<br />d. excludes string of characters within double quotes<br />e. (a), (b), (d)<br /><br />Ans: (e)Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-28152203447982261662010-09-08T00:51:00.000-07:002010-09-13T23:20:22.096-07:00Bharat Electronics Limited Recruitment Exam1. The address space of 8086 microprocessor is :<br />a. one megabyte b. 256 kilobytes<br />c. 1 K megabytes c. 64 kilobytes<br /><br />Ans: (a) one megabyte<br /><br />2. Which normal form is considered adequate for normal relational database design ?<br />a. 2 NF b. 5 NF<br />c. 4 NF d. 3 NF<br /><br />Ans: (d) 3 NF<br /><br />3. When the result of a computation depends on the speed of the processes involved there is said to be<br />a. cycle stealing b. race condition<br />c. a time lock d. a deadlock<br /><br />Ans: (b) race condition<br /><br />4. Zero has two representations in<br />a. sign magnitude<br />b. 1's complement<br />c. 2's compliment<br />d. None of the above<br /><br />Ans: (a) sign magnitude<br /><br />5. Which of the following addresing modes permits relocation without any change<br />a. Indirect addressing b. Indexed Addressing<br />c. Base register addressing d. PC relative addressing<br /><br />Ans: (c) Base register addressingAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-87698212089646044372010-09-07T02:48:00.000-07:002010-09-13T23:19:44.429-07:00Objective Type Question Answers of Operating System1. Which of the command is used to remove files ?<br />a. erase<br />b. rm<br />c. delete<br />d. dm<br /><br />Ans: b<br /><br />2. Which of the following command is used to count just the number of lines contained in a file ?<br />a. wc-1<br />b. wc-w<br />c.wc-c<br />d. wc-r<br /><br />Ans: a<br /><br />3. Which command is used to copy a file wb with the same name from the programs directory to the misc. directory ?<br />a. copy programs/wb misc/wb<br />b. cp programs/wb misc<br />c. copy a:programs/wb b:misc/wb<br />d. tar programs/wb misc/wb<br /><br />Ans: b<br /><br />4. The commonly used UNIX commands like date, Is, cat, etc. are stored in<br />a. /dev directory<br />b. /bin and /usr/bin directories<br />c. /unix directory<br />d. /tmp directory<br /><br />Ans: b<br /><br />5. Which of the following directories contain all the files created by a user, including his login directory ?<br />a. /tmp<br />b. /usr<br />c. /etc<br />d. /dev<br /><br />Ans: b<br /><br />6. Which command is used to copy the three files wb, colllect and mon into the misc directory, under the same, when you were currently in the programs directory ?<br />a. copy wb collect mon/misc<br />b. cp wb collect mon ../misc<br />c. copy wb ../misc collect ../misc mon ../misc<br />d. tar wb collect mon/misc<br /><br />Ans: b<br /><br />7. Which of the following command is used to display the directory attributes rather than its contents ?<br />a. 1s-1-d<br />b. Is-x<br />c. Is-1<br />d. is-F<br /><br />Ans: a<br /><br />8. Which command is used to remove a directory<br />a. rd<br />b. dldir<br />c. rmdir<br />d. rdir<br /><br />Ans: c<br /><br />9. Which command is used to list out all the hidden files along with the other files ?<br />a. Is-1<br />b. Is-F<br />c. Is-x<br />d Is-a<br /><br />Ans: d<br /><br />10. The file that contains a set of instructions which are performed when a user logs in, is<br />a) .exrc<br />b) .profile<br />c) autoexec.bat<br />d) .autoexec<br /><br />Ans: bAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-91047720493882756552010-09-07T01:13:00.000-07:002010-09-13T23:19:19.511-07:00Operating System Questions1. Which of the following command can be used to get information about all user who are currently logged into the system ?<br />a. which<br />b. who am i<br />c. who<br />d. 1/u<br /><br />Ans: c<br /><br />2. The command used to remove the directory is<br />a. rmdir<br />b. remove<br />c. rd<br />d. rdir<br /><br />Ans: a<br /><br />3. Which of the following command can be used to get information about yourself<br />a. who am i<br />b. pwd<br />c. i/4<br />d. which<br /><br />Ans: a<br /><br />4. Which of the following command is used to summarize the disk usage ?<br />a. chkdsk<br />b. du<br />c. fdisk<br />d. disk<br /><br />Ans: b<br /><br />5. Which of the following commands is used to copy directory structures in and out ?<br />a. cp<br />b. cp-p<br />c. cpio<br />d. copy<br /><br />Ans: c<br /><br />6. Which of the following signs is used to backup over typing errors in vi ?<br />a. @<br />b. $<br />c. #<br />d. !<br /><br />Ans: c<br /><br />7. Which of the following commands is used to change the working directory ?<br />a. cd<br />b. chdir<br />c. changedir<br />d. cdir<br /><br />Ans: a<br /><br />8. Which of the following signs is used to erase or kill an entire line you have typed and start you are on a new line(but not display a new prompt) ?<br />a. @<br />b. $<br />c. #<br />d. !<br /><br />Ans: a<br /><br />9. Which of the following commands is used to count the total number of lines, words and characters contained in a file.<br />a. count p<br />b. wcount<br />c. wc<br />d. countw<br /><br />Ans: c<br /><br />10. Which of the following commands is used to list contents of directories ?<br />a. 1s<br />b. dir<br />c. 1p<br />d. tar<br /><br />Ans: aAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-53962401697868865022010-09-06T23:58:00.000-07:002010-09-13T23:17:14.037-07:00Technical Questions for PSU's1. The operators << (left shift) and >> (right shift) are<br />a. assignment operators<br />b. relational operators<br />c. logical operators<br />d. bitwise logical operators<br /><br />Ans: d<br /><br />2. The values that can legally appear to the right of the assignment operator are called<br />a. rvalues<br />b. int values<br />c. variables<br />d. constants<br /><br />Ans: a<br /><br />3. The string containing certain required formating information is called<br />a. argument<br />b. character array<br />c. character string<br />d. control string<br /><br />Ans: d<br /><br />4. In C, the NULL statement which does nothing is just<br />(a.) a., (b) ;<br />(c) : (d) .<br /><br />Ans: (b)<br /><br />5. The general form of do-while statement is<br />a. do expression while statement;<br />b. do while expression;<br />c. do statement while expression;<br />d. do statement while statement;<br /><br />Ans: c<br /><br />6. The two statement that can be used to change the flow of control are<br />a. if and switch<br />b. if and while<br />c. switch and do-while<br />d. break and continue<br /><br />Ans: a<br /><br />7. In printf(), the appearance of the output can be affected by<br />a. field width<br />b. conversion character<br />c. flag<br />d. all of the above<br />e. none of the above<br /><br />Ans: d<br /><br />8. The conversion character 's' for data input means that the data item is<br />a. an unsigned decimal integer<br />b. a short integer<br />c. a hexadecimal integer<br />d. a string followed by whitespace character<br /><br />Ans: d<br /><br />9. The conversion character for data input which indicates that the data item is a floating-point values is<br />(a) f<br />(b) g<br />(c) e<br />(d) All of the above<br /><br />Ans: d<br /><br />10. The conversion character 'i' for data output means that the data item is displayed as -<br />(a) a floating point value with an exponent<br />(b) an unsigned decimal integer<br />(c) a signed decimal integer<br />(d) an octal integer<br /><br />Ans: cAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-90251065161981653612010-09-06T03:05:00.000-07:002010-09-13T23:16:48.299-07:00Objective Questions of 'C'1. Precedence determines which operator<br />a. is evaluated first<br />b. is most important<br />c. is fastest<br />d. operates on the largest number<br /><br />Ans: a<br /><br />2. A expression contains relational assignment and arithmetic operator. In the absence of parentheses, the order of evaluation will be<br /><br />a. assignment, relational, arithmetic<br />b. arithmetic, relational, assignment<br />c. relational, arithmetic, assignment<br />d. assignment, arithmetic, relational<br /><br />Ans: b<br /><br />3. The commands that send or "redirect" output of a program to a disk file or another system device such as the printer are<br /><br />a. <and><br />b. [and]<br />c. /* and /*<br />d. ( and )<br /><br />Ans: a<br /><br />4. Which of the following scanf() statements is true ?<br />a. scanf("%f', float-var-name);<br />b. scanf("%d ∑");<br />c. scanf("%d", &int-var-name);<br />d. scanf("%d", &number);<br /><br />Ans: d<br /><br />5. The meaning of conversion character h for data input is<br />a. data item is an unsigned decimal integer<br />b. data item is a short integer<br />c. data item is a hexadecimal integer<br />d. data item is a string folowed by a whitespace character<br /><br />Ans: b</and>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-72325377918952707102010-09-06T02:02:00.000-07:002010-09-13T23:17:52.319-07:00Objective Type Questions on Loop1. The general form of the conditional expression is<br />a. expression 1 ? expression 2 :expression 3<br />b. expression 2 ? expression 3 ?expression 1<br />c. expression 3 ? expression 2 :expression 1<br />d. expression 1 ? expression 2 ?expression 3<br /><br />Ans: a<br /><br />2. Any program in C, has access to three standard files<br />a. standrad input file, standard output file, standard error file<br />b. stdin, stdout, stderr<br />c. keyboard, screen, screen<br />d. all of the above<br />e. none of the above<br /><br />Ans: d<br /><br />3. In a simple 'if' statement with no 'else', what happens if the condition following the 'if' is false ?<br />a. The program searches for the last else in the program<br />b. Nothing<br />c. Control 'falls through' to the statement folowing 'if'<br />d. The body of the statement is executed<br /><br />Ans: c<br /><br />4. A while loop is more appropriate than a for loop when<br />a. the body of the loop will be executed at last once<br />b. the terminating condition occurs unexpectedly<br />c. the program will be executed at least once<br />d. the number of times the loop will be executed is known before the loop is executed<br />e. none of the above<br /><br />Ans: b<br /><br />5. The comma operator(,) is used to<br />a. permit two different expressions to appear in situations where only once expression would ordinarily be used<br />b. terminate loops or to exit from switch<br />c. alter the normal sequence of program execution by transferring control to some other part of the program<br />d. carry out a logical test and then take one of two possible actions, depending upon the outcome of the test<br /><br />Ans: aAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-50817924174279146892010-09-06T00:43:00.000-07:002010-09-13T23:18:47.350-07:00Relational Database Design and SQL Questions1. In a relational schema, each tuple is divided into fields called<br />a. Relations<br />b. Domains<br />c. Queries<br />d. All of the above<br /><br />Ans: b<br /><br />2. A logical schema<br />a. is the entire database<br />b. is a standard way of organizing information into accessible parts<br />c. describes how data is actually stored on disk<br />d. all of the above<br /><br />Ans: b<br /><br />3. A form defines<br />a. where data are placed on the screen<br />b. the width of each field<br />c. both (a) and (b)<br />d. All of the above<br /><br />Ans: c<br /><br />4. A top-to-bottom relationship among the items in a database is established by a<br />a. Hierarchical Schema<br />b. Network Schema<br />c. Relational Schema<br />d. All of the above<br /><br />Ans: b<br /><br />5. A good query system<br />a. can accept English language commands<br />b. allows non-programmers to access information stored in a database<br />c. can be accessed only by data processing professionals<br />d. Both (a) and (b)<br /><br />Ans: b<br /><br />6. A report form<br />a. appears on the computer monitor during data entry<br />b. is used during report generation to format data<br />c. Both a and b<br />d. All of the above<br /><br />Ans: b<br /><br />7. A list consists of last names, first names, addresses and pincodes if all people in the list have the same last and the same pincode, a useful key would be<br />a. the pincode<br />b. the last name<br />c. a compound key consisting of the first name and the last name<br />d. all of the above<br /><br />Ans: c<br /><br />8. A command that lets you change one or more fields in a record is<br />a. Insert<br />b. Modify<br />c. Look-up<br />d. All of the above<br /><br />Ans: b<br /><br />10. Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time ?<br />a. Report writer<br />b. Query language<br />c. Data manipulation language<br />d. Transaction Log<br /><br />Ans: dAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-74423842331813953432010-09-06T00:18:00.000-07:002010-09-13T23:18:18.813-07:00Some 'C' Programming objective type questions1. The recursive form of algebric formula<br />y=(x1,+x2+x3... +xn) is<br /><br />a. y=x+n-1 xi i=1<br />b. y=xn+n xi i=1<br />c. y=xn+xi<br />d. y=xn+n-1 i=1 xi<br />e. none of the above<br /><br />Ans: d<br /><br />2. Which of the folowing, is a storage class specification of C ?<br />a. Automatic<br />b. Mean<br />c. External<br />d. String<br />e. none of the above<br /><br />Ans: d<br /><br />3. The statement following else in an 'if-else' construct are executed when<br />a. the conditional statement following the 'if' is false<br />b. the conditional statement following the 'if' is teue<br />c. the conditional statement following the 'else' is false<br />d. the conditional statement following the 'else' is true<br />e. none of the above<br /><br />Ans: a<br /><br />4. Given these variables<br />char ch;<br />short i;<br />unsigned long u1;<br />float f;<br />the overall type of this expression is<br /><br />a. char<br />b. unsigned<br />c. float<br />d. double<br />e. none of the above<br /><br />Ans: c<br /><br />5. What will this program display ?<br />#include<stdio.h><br />main()<br />{<br />float f;<br />f= 10/3;<br />printf("%f", f);<br />}<br /><br />a. 3.3<br />b. 3.000000<br />c. 3<br />d. 3.1<br /><br />Ans: b</stdio.h>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-88612599771210212152010-09-05T23:20:00.000-07:002010-09-13T23:14:54.625-07:00C and C++ objective type questionsQ1. The braces that surround the code in a 'C' program<br />a. show what code goes in a particular function<br />b. delimit a section of code<br />c. separate the code from the constant<br />d. separate the source file from the subject file<br />e. none of the above<br /><br />Q2. Almost every C program begins with the statement<br />a. main()<br />b. printf()<br />c. #include<stdio.h><br />d. scanf()<br />e. none of the above<br /><br />Q3. A single character input from the keyboard can be obtained by using the function<br />a. printf()<br />b. getchar()<br />c. putchar()<br />d. scanf()<br />e. none of the above<br /><br />Q4. The function scanf() reads<br />a. a single character<br />b. character and strings<br />c. any possible variable type<br />d. any possible number<br />e. none of the above<br /><br />Q5. A field width specifier in a printf() function<br />a. specifies the maximum value of a number<br />b. controls the size of type used to print numbers<br />c. controls the margins of the program<br />d. specifies how many character positions will be used for a number<br />e. none of the above<br /><br /><span style="font-weight: bold;">Ans: 1. b , 2. c , 3. b , 4. c , 5. d</span></stdio.h>Anil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-4308417266627063902010-09-05T01:45:00.000-07:002010-09-13T23:16:20.793-07:00UGC Net Computer Science and Application Paper1. The library files that comes with 'C' are -<br />Ans: files that contains functions which carry out various commonly used operations and calculations.<br /><br />2. In 'C' square brackets[] are used in -<br />a. functions<br />b. arrays<br />c. statements<br />d. all of the above<br />ANs: b<br /><br />3. A 'C' program contains the declarations and initial assignments:<br />int i=8, j=5;<br />The value of arithmetic expression is int from<br />2*((i/5)+(4*j-3)%(i+j-2)) is<br /><br />a. 18<br />b. 14<br />c. 1<br />d. 17<br /><br />Ans: b<br /><br />4. The single character input/output functions are<br />Ans: getchar() and putchar()<br /><br />5. The purpose of a conditional operator is to-<br />a. select one of the two values alternately<br />b. select the highest of the two values<br />c. select one of the two values depending on a condition<br />d. select the more equal of the two values<br /><br />Ans: cAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0tag:blogger.com,1999:blog-180497822730029981.post-69887310003109543272010-09-05T00:07:00.000-07:002010-09-13T23:15:34.766-07:00Objective type C & C++ QuestionsQ1. An identifier in C<br />a. is a name of a thing such as variable and function<br />b. is made up of letters, numerals and the underscore<br />c. can obtain both upper case and lower case letter<br />d. all of the above<br />e. none of the above<br /><br />Q2. The math library is setup for the user by the file<br />a. float.h<br />b. limits.h<br />c. math.h<br />d. time.h<br />e. none of the above<br /><br />Q3. Which of the following does not have an unary operator ?<br />a. -7 b. ++i<br />c. j d. all of the above<br />e. none of the above<br /><br />Q4. Assume x, y and z are floating point variables and they have been assigned the values x=8.8, y=3.5, z= -5.2 . The value of arithmetic expression 2*x/(3*y) is<br />a. 2.000000<br />b. 1.600000<br />c. 1.676190<br />d. 0.676190<br />e. none of the above<br /><br />Q5. The two operators && and || are<br />a. arithmetic operators<br />b. equality operators<br />c. logical operators<br />d. relational operators<br />e. none of the aboveAnil Kanthttp://www.blogger.com/profile/04189550460610966172noreply@blogger.com0