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⇱ Quiz about ISRO CS 2014

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Question 1

Write the output of the following C program

  • the value of shifty is 15c0

  • the value of shifty is 4300

  • the value of shifty is 5700

  • the value of shifty is 2700

Question 2

The following three 'C' language statements is equivalent to which single statement? y=y+1; z=x+y; x=x+1

  • z = x + y + 2;

  • z = (x++) + (++y);

  • z = (x++) + (y++);

  • z = (x++) + (++y) + 1;

Question 3

How many lines of output does the following C code produce? 

  • 8

  • 9

  • 10

  • 11

Question 4

What is the output of the following C program?

  • 14

  • 36

  • 18

  • 20

Question 5

Consider a 50 kbps satellite channel with a 500 milliseconds round trip propagation delay. If the sender wants to transmit 1000 bit frames, how much time will it take for the receiver to receive the frame?

  • 250 milliseconds

  • 20 milliseconds

  • 520 milliseconds

  • 270 milliseconds

Question 6

Which of the following is not a valid multicast MAC address?

  • 01:00:5E:00:00:00

  • 01:00:5E:00:00:FF

  • 01:00:5E:00:FF:FF

  • 01:00:5E:FF:FF:FF

Question 7

A mechanism or technology used in Ethernet by which two connected devices choose common transmission parameters such as speed, duplex mode and flow control is called

  • Autosense

  • Synchronization

  • Pinging

  • Auto negotiation

Question 8

The five items: A, B, C, D, and E are pushed in a stack, one after other starting from A. The stack is popped four items and each element is inserted in a queue. The two elements are deleted from the queue and pushed back on the stack. Now one item is popped from the stack. The popped item is

  • A

  • B

  • C

  • D

Question 9

Consider the following sorting algorithms. 
I. Quicksort 
II. Heapsort 
III. Mergesort 
Which of them perform in least time in the worst case?

  • I and II only

  • II and III only

  • III only

  • I, II and III

Question 10

Which of the following is true with respect to Reference?

  • A reference can never be NULL

  • A reference needs an explicit dereferencing mechanism

  • A reference can be reassigned after it is established

  • A reference and pointer are synonymous

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