ISRO Scientist or Engineer Computer Science 2014


For the following questions answer them individually

Question 71

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

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Question 72

The rank of the matrix $$A = \begin{bmatrix}1 & 2 & 1 & -1 \\9 & 5 & 2 & 2 \\7 & 1 & 0 & 4 \end{bmatrix}$$ is ...........

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Question 73

How many different trees are there with four nodes A, B, C and D?

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Question 74

What is the median of the data if its mode is 15 and the mean is 30?

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Question 75

An organization is granted the block / 26. It needs to have four subnets. Which of the following is not an address of this organization?

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Question 76

Consider the following scenario.
A web client sends a request to a web server. The web server transmits a program to that client and is executed atclient. It creates a web document. Whatare such web documents called?

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Question 77

What is the size of the physical address space in a paging system which has a pagetable containing 64 entries of 11 bit each (including valid/invalid bit) and a page size of 512 bytes?

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Question 78

Which of the following is not an optimization criterion in the design of a CPU scheduling algorithm?

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Question 79

Consider the following Deterministic Finite Automaton M.

Let S denote the set of eight bit strings whose second, third, sixth and seventh bits are 1. The number of strings in S that are accepted by M is

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Question 80

A Computing architecture, which allows the user to use computers from multiple administrative domains to reach a commongoalis called as

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