Questions and answers for UGC
If we want to resize a 1024 ├ù 768 pixels image to one that is 640 pixels wide with the same aspect ratio, what would be the height of the resized image? (1) 420 Pixels (2) 460 Pixels (3) 480 Pixels (4) 540 Pixels Answer: 3 An instruction is stored at location 500 with its…
Which of the following methods are used to pass any number of parameters to the operating system through system calls? (1) Registers (2) Block or table in main memory (3) Stack (4) Block in main memory and stack Answer: 4 Match the Agile Process models with the task performed during the model: List-I List-II (a)…
Match List-I with List-II: List-I List-II (a) Frame attribute (i) to create link in HTML (b) <tr> tag (ii) for vertical alignment of content in cell (c) valign attribute (iii) to enclose each row in table (d) <a> tag (iv) to specify the side of the table frame that display border Choose the correct option…
Consider the following statements with respect to network security: (a) Message confidentiality means that the sender and the receiver expect privacy. (b) Message integrity means that the data must arrive at the receiver exactly as they were sent. (c) Message authentication means the receiver is ensured that the message is coming from the intended sender….
Consider the language L = {anbn-3 | n>2} on ╬ú = {a, b}. Which one of the following grammars generates the language L? (1) S ΓåÆ aA | a, A ΓåÆ aAb | b (2) S ΓåÆ aaA | ╬╗, A ΓåÆ aAb | ╬╗ (3) S ΓåÆ aaaA | a, A ΓåÆ aAb |…
Q. What is meant by conditional compilation? Ans: C pre-processor offers a feature called conditional compilation that is used to switch on or off a particular line or group of lines in a program. Compiler skips over part of a source code by inserting the pre-processing commands #ifdef and #endif, which have the general form…
1) Context free Grammar is ? a. A Compiler b. A language expression c. A regular expression d. None of these Answer = B Explanation: Context free Grammar generate the context free languages. These are defined by the rule of the form A -> b Where A a non terminal and b is the…
1. Data will remain intact even when the computer is turned off, if it is stored on ………….. (a)RAM (b)motherboard (c)secondary storage device (d)primary storage device Ans. (c) secondary storage device 2. The motherboard is the: (a)circuit board that houses peripheral devices (b)same as the CPU chip (c)the first chip that is accessed when the…
1. The portion of server memory set aside to temporary hold data packets from workstation is called Packet Cache buffer Packet receive buffer Packet block Dirty packet buffer Answer is D 2. Device that can convert digital signals to analog signals is A Packet Emulator Modem Tuner…
1. It is anything in a form suitable for use with a computer. What is it? Ans. Data 2. Computer uses a numeral system which represents numeric values using two symbols, 0 and 1. What is this numeral system known as. Ans. Binary numeral system 3. On almost all modern computers, a byte is equal…