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1.

Suppose that everyone in a group of N people wants to communicate secretly with the N–1 others using symmetric key cryptographic system. The communication between any two persons should not be decodable by the others in the group. The number of keys required in the system as a whole to satisfy the confidentiality requirement is(A) 2N(B) N(N – 1)(C) N(N – 1)/2(D) (N – 1)2

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2.

Which one of the following is True at any valid state in shift-reduce parsing?(A) Viable prefixes appear only at the bottom of the stack and not inside(B) Viable prefixes appear only at the top of the stack and not inside(C) The stack contains only a set of viable prefixes(D) The stack never contains viable prefixes

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3.

A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called(A) Dense(B) Sparse(C) Clustered(D) Unclustered

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4.

Suppose L = {p, q, r, s, t} is a lattice represented by the following Hasse diagram:For any x, y ∈ L, not necessarily distinct, x ∨ y and x ∧ y are join and meet of x, y respectively. Let L3 = {(x,y,z): x, y, z ∈ L} be the set of all ordered triplets of the elements of L. Let pr be the probability that an element (x,y,z) ∈ L3 chosen equiprobably satisfies x ∨ (y ∧ z) = (x ∨ y) ∧ (x ∨ z). Then(A) Pr = 0(B) Pr = 1(C) 0 < Pr ≤ 1/5(D) 1/5 < Pr < 1

Answer» None
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5.

In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that?(A) HTTP, FTP(B) HTTP, TELNET(C) FTP, SMTP(D) HTTP, SMTP

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6.

Consider a non-pipelined processor with a clock rate of 2.5 gigahertz and average cycles per instruction of four. The same processor is upgraded to a pipelined processor with five stages; but due to the internal pipeline delay, the clock speed is reduced to 2 gigahertz. Assume that there are no stalls in the pipeline. The speed up achieved in this pipelined processor is __________.(A) 3.2(B) 3.0(C) 2.2(D) 2.0

Answer» None
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7.

Which of the following options is the closest in meaning to the sentence below?She enjoyed herself immensely at the party.(A) She had a terrible time at the party(B) She had a horrible time at the party(C) She had a terrific time at the party(D) She had a terrifying time at the party

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8.

Based on the given statements, select the most appropriate option to solve the given question.If two floors in a certain building are 9 feet apart, how many steps are there in a set of stairs that extends from the first floor to the second floor of the building?Statements:1. Each step is 3/4 foot high.2. Each step is 1 foot wide.(A) Statement 1 alone is sufficient, but statement 2 alone is not sufficient(B) Statement 2 alone is sufficient, but statement 1 alone is not sufficient(C) Both statement together are sufficient, but neither statement alone is sufficient(D) Statement 1 and 2 together are not sufficient

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9.

The number of students in a class who have answered correctly, wrongly, or not attempted each question in an exam, are listed in the table below. The marks for each question are also listed. There is no negative or partial marking.Q.No. Marks Answered-Correctly Answered-Wrongly Not-Attempted 1 2 21 17 6 2 3 15 27 2 3 1 11 29 4 4 2 23 18 3 5 5 31 12 1 What is the average of the marks obtained by the class in the examination?(A) 2.290(B) 2.970(C) 6.795(D) 8.795

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10.

Which one of the following combinations is incorrect?(A) Acquiescence – Submission(B) Wheedle – Roundabout(C) Flippancy – Lightness(D) Profligate – Extravagant

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11.

Given Set A = {2, 3, 4, 5} and Set B = {11, 12, 13, 14, 15}, two numbers are randomly selected, one from each set. What is the probability that the sum of the two numbers equals 16?(A) 0.20(B) 0.25(C) 0.30(D) 0.33

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12.

Consider a system with byte-addressable memory, 32 bit logical addresses, 4 kilobyte page size and page table entries of 4 bytes each. The size of the page table in the system in megabytes is ___________(A) 2(B) 4(C) 8(D) 16

Answer» None
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