Firstranker's choice
Question No.1 (Question Id - 84)
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Pick the correct statements about Flooding:
A. It is a type of isolated routing.
B. It is a method in which every incoming packet is sent out on every routing line except the one by which it arrived.
C. Flooding does not always select the shortest path.
D. Selective Flooding is a type in which the packets are sent to those lines that going approximately in the right direction.
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Choose the most appropriate answer from the options given below :
(A) A, B, C only
(B) B, C, D only
(C) A, B, D only (Correct Answer)
(D) A, B, C, D only
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Question No.2 (Question Id - 7)
Read the following information and answer the question given below it.
A is the father of C. But C is not his son. E is the daughter of C. F is the spouse of A. B is the brother of C. D is the son of B. G is the spouse of B. H is the father of G. Who is the grandmother of D?
(A) A
(B) C
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(C) F (Correct Answer)
(D) H
Question No.3 (Question Id - 64)
Consider the following set of processes that arrive at time 0, with the length of CPU-burst time given in milli-seconds :
| Process | Burst Time |
|---|---|
| P1 | 24 |
| P2 | 3 |
| P3 | 3 |
What is the average waiting time in milli-seconds when we use the Round Robin (RR) scheduling algorithm with time quantum of 4 milli-seconds?
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(A) 5.66 (Correct Answer)
(B) 10
(C) 15.66
(D) 2
Question No.4 (Question Id - 98)
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While applying pumping lemma over a language L, we consider a string w that belongs to L and fragment it into parts.
(A) 3 (Correct Answer)
(B) 4
(C) 5
(D) 6
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Firstranker's choice
The solution of integration ?exsinx dx is:
(A) exsinx cosx+C, where C is a constant
(B) ex(sinx - cosx) + C, where C is a constant
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(C) (ex/2)(sinx - cos x) + C, where C is a constant (Correct Answer)
(D) (ex/2)(sinx + cosx) + C, where C is a constant
Question No.7 (Question Id - 14)
What is the value of ?03 [x] dx ?
(A) 9/2
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(B) 6
(C) 3 (Correct Answer)
(D) 3/2
Question No.8 (Question Id - 22)
Find the Eigen values of A.
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A = (1 -3 3) (-3 -5 3) (6 -6 4)
(A) (2, 3)
(B) (-2, 4) (Correct Answer)
(C) (2,-4)
(D) (-2, 3)
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Question No.9 (Question Id - 77)
The Universal Serial Bus (USB) type, which is reversible is :
(A) USB Type A
(B) USB Type B
(C) USB Type C (Correct Answer)
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(D) All of the above
Question No.10 (Question Id - 70)
Which of the following statements are False ?
A. Date-of-birth is a single-valued and atomic attribute.
B. A weak entity has always total participation in identifying relationship.
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C. Key of a database relation cannot contain more than one attribute.
Choose the most appropriate answer from the options given below :
(A) A and B only
(B) A and C only (Correct Answer)
(C) B and C only
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(D) A, B and C only
Question No.11 (Question Id - 95)
Which one of the following is not a tautology?
(?) (p ? q) ? q
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Firstranker's choice
How many paths of length 3 are available from vertex 1 to 5 and what is the max. weight of the path of length 3 from vertex 1 to 5?
(A) No. of paths: 2, weight : 9
(B) No. of paths: 4, weight : 9
(C) No. of paths: 3, weight: 13 (Correct Answer)
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(D) No. of paths: 3, weight : 7
Question No.13 (Question Id - 5)
Rohit walked 25 metres towards South. Then he turned to his left and walked 25 metres. He then turned to his left and walked 25 metres. He again turned to his right and walked 15 metres. At what distance is he from the starting point and in which direction?
(A) 35 metres East
(B) 35 metres North
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(C) 40 metres East (Correct Answer)
(D) 60 metres East
Question No.14 (Question Id - 85)
A TCP machine is sending full window of 65,535 bytes over a 1-Gbps channel that has a 10 msec one way delay. The maximum throughput achievable and the line efficiency are :
(A) 3.0 million bytes/sec, 2.0%
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(B) 3.1 million bytes/sec, 2.2%
(C) 3.2 million bytes/sec, 2.4%
(D) 3.3 million bytes/sec, 2.6% (Correct Answer)
Question No.15 (Question Id - 12)
What is the nth derivative of y=xn ?
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(A) n! (Correct Answer)
(B) 2n
(C) 0
(D) 1
Question No.16 (Question Id - 3)
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In this question, one term in the number series is wrong. Find out the wrong term.
5, 10, 40, 80, 320, 550, 2560
(A) 80
(B) 320
(C) 550 (Correct Answer)
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(D) 2560
Question No.17 (Question Id - 11)
What is the derivative of y=xsinx ?
(A) xsinx cosx
(B) xsinx cosx logx
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(C) xsinx cosx logx + (sinx / x) (Correct Answer)
(D) xsinx cosx logx + (cosx / x)
Question No.18 (Question Id - 28)
Firstranker's choice
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fuses from that box without replacement, what is the Probability that all 3 fuses are defective?
(A) 5/20
(B) 1/17
(C) 12/342
(D) 1/114 (Correct Answer)
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Question No.20 (Question Id - 46)
A list of N elements requires no more than iterations to get it sorted using bubble sort.
(A) N + 1
(B) N - 1 (Correct Answer)
(C) N
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(D) 2N
Question No.21 (Question Id - 17)
If set of integers, with operation defined by m*n = m + n - 1 forms a group, what is the identity of group ?
(A) 0
(B) 1 (Correct Answer)
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(C) -n
(D) - n + 2
Question No.22 (Question Id - 32)
If X and S² are the sample mean and sample variance of a random sample of size n from a normal population with mean µ and standard deviation s, then :
A. X and S² are independent.
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B. The random variable ((n - 1)S²) / s² follows a ?² - distribution with n - 1 degrees of freedom.
C. The random variable ((n - 1)S²) / s² follows a t - distribution with n - 1 degrees of freedom.
Choose the most appropriate answer from the options given below :
(A) A only
(B) A and B only
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(C) A and C only (Correct Answer)
(D) B only
Question No.23 (Question Id - 35)
Suppose a hospital has large quantities of packaged doses of a particular drug A. The individual dose of A is 100 cc. We also know that body will harmlessly pass off excessive doses of A, and insufficient doses of A do not produce the desired effect. The hospital has purchased this drug from same manufacturer for long time and knows the standard deviation for population is 2 cc. After inspecting 50 doses of A at random, the mean of this sample is found to be 99.75 cc. Which of the following tests should be used by hospital to accept or reject this shipment?
(A) left-tailed t-test
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(B) left-tailed z-test (Correct Answer)
(C) two-tailed t-test
(D) two-tailed z-test
Question No.24 (Question Id - 67)
The column of a table is referred to as the :
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Firstranker's choice
S = { [a 0] : a, b are integers }
b 0
S = { [a 0] : a, b, c are integers }
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b c
Question No.26 (Question Id - 87)
According to cryptography principles :
A. Principle 1: Message must contain some redundancy.
B. Principle 2: Some method is needed to foil replay attack.
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C. Principle 1 is known redundancy.
D. Principle 2 is known freshness.
E. Principles 1 and 2 are known freshness.
Choose the most appropriate answer from the options given below :
(A) A, B, C, D only (Correct Answer)
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(B) B, C, D, E only
(C) C, D, E only
(D) A, B, E only
Question No.27 (Question Id - 62)
A process executes the following code
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for (i=0; i<n; i++)
fork();
The total number of child processes created is :
(A) n²
(B) 2n-1 (Correct Answer)
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(C) 2n
(D) 2n + 1
Question No.28 (Question Id - 96)
For a given Moore Machine, if input = ‘101010’, then the output would be of length :
(A) 7 (Correct Answer)
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(B) 6
(C) 5
(D) 4
Question No.29 (Question Id - 61)
A program in execution is called :
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(A) Program
(B) Process (Correct Answer)
(C) Procedure
(D) Routine
Question No.30 (Question Id - 34)
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A random variable is uniformly distributed over the interval (a, b) where a < b. Then the expected value E[X] and variance Var(X) are :
(A) (a+b)/2 and ((b-a)²)/2
(B) (a+b)/2 and ((b-a)²)/12
Question No.32 (Question Id - 48)
What is the time complexity of the binary tree sort algorithm in worst case (sorted input) ?
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(A) O (n logn)
(B) O (n²) (Correct Answer)
(C) O (n)
(D) O (log n)
Question No.33 (Question Id - 88)
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A bit string, 0111101111101111110 needs to be transmitted at the data link layer. What is the string actually transmitted after bit stuffing ?
(A) 011110111110011110010
(B) 011110111110011111010 (Correct Answer)
(C) 011110011110011111010
(D) 011110101110101111010
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Question No.34 (Question Id - 65)
A computer system has 4K word cache organized in a block set associative manner, with 4 blocks per set, 64 words per block. The number of bits in the SET and WORD field of the main memory address format is:
(A) 15,4
(B) 6,4
(C) 7,2
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(D) 4, 6 (Correct Answer)
Question No.35 (Question Id - 10)
Statements : Some trucks are scooters.
No scooter is cycle.
Conclusions: (A) No truck is cycle.
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(B) No scooter is truck.
(C) Some trucks are cycles.
(D) Some scooters are trucks.
Choose the most appropriate answer from the options given below :
(A) (A) and (C) only
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(B) (B) and (C) only
(C) (D) only (Correct Answer)
(D) (A), (B) and (C) only
Question No.36 (Question Id - 30)
The function y = sinx is tabulated below:
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| X | 0 | p/4 | p/2 |
|---|---|---|---|
| y = sinx | 0 | 0.70711 | 1.0 |
Using Lagrange's Interpolation formula, what is the value of sin (p /6) ?
(A) 0.50743
(B) 0.51743 (Correct Answer)
(C) 0.52701
(D) 0.5304
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Question No.37 (Question Id - 47)
Consider a list of size 512. If you want to search a key value in the list using binary search, what will be the maximum number of comparisons?
Firstranker's choice
Question No.39 (Question Id - 33)
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The mode of a data set is :
(A) The most central item in the data set.
(B) The sum of the values in the data set divided by the number of observations.
(C) The value that is repeated most often in the data set. (Correct Answer)
(D) A measure of dispersion of the data set.
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Question No.40 (Question Id - 41)
If the sequence of operations - push(3), push(5), pop(), push(3), push(5), pop(), pop(), pop(), push(5), pop(), are performed on a stack, the sequence of popped out values are :
(A) 5, 5, 3, 3, 5 (Correct Answer)
(B) 5, 5, 3, 5, 5
(C) 5, 3, 5, 5, 1
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(D) 5, 3, 5, 5, 5
Question No.41 (Question Id - 54)
In 'C' automatic and register variables are initialized :
(A) Every time the function or block is entered. (Correct Answer)
(B) Before the program execution starts,
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(C) Only once where the function or block is entered.
(D) By the compiler during compilation.
Question No.42 (Question Id - 80)
Match the following:
| List - I | List - II |
|---|---|
| A. DMA | I. Hard Disk |
| B. Interrupt I/O | II. Printer |
| C. Flag Register | III. High Speed RAM |
| D. Cache | IV. ALU |
Choose the correct answer from the options given below :
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(A) A-I, B - II, C - III, D - IV
(B) A-I, B - II, C - IV, D - III (Correct Answer)
(C) A-II, B - III, C - IV, D - I
(D) A - III, B - I, C - II, D - IV
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Firstranker's choice
Question No.45 (Question Id - 90)
BSC (Binary Synchronization Communication) protocol is :
A. Character oriented protocol
B. Bit oriented protocol
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C. Full duplex protocol
D. Half duplex protocol
Choose the most appropriate answer from the options given below :
(A) A, B only
(B) A, C only
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(C) A, D only (Correct Answer)
(D) B, C only
Question No.46 (Question Id - 39)
Which of the following statement(s) regarding the kurtosis of a distribution is true ?
A. It is a measure of central tendency of the distribution.
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B. It is a measure of dispersion of the distribution.
C. It is the degree of peakedness of the distribution.
D. It is the degree of difference from a uniform frequency distribution.
Choose the most appropriate answer from the options given below :
(A) A and D only
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(B) B, C and D only
(C) A and C only
(D) C only (Correct Answer)
Question No.47 (Question Id - 74)
Consider an ordered file with r = 30,000 records stored on a disk with block size B = 1024 bytes. File records are fixed size and are unspanned, with record length R = 100 bytes. Suppose that the ordering key field of the file is V = 9 bytes long, a block pointer is P = 6 bytes long, and we have constructed a primary index for the file. How many block accesses will be needed to search for a record using the primary index?
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(A) 5
(B) 7 (Correct Answer)
(C) 9
(D) 6
Question No.48 (Question Id - 72)
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Firstranker's choice
Four words have been given out of which three are alike in some manner and the fourth one is different. Choose out the odd one.
(A) Pen
(B) Calculator (Correct Answer)
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(C) Pencil
(D) Ink
Question No.50 (Question Id - 100)
If d is not defined on the current state and the current tape symbol, then the turning machine
(A) does not halt
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(B) halts (Correct Answer)
(C) goes into loop forever
(D) none of the above
Question No.51 (Question Id - 25)
Let T : R3 ? R3 be the linear mapping defined by T (x, y, z) = (x + 2y - z, y + z, x + y - 2z). Find a basis of the image U of T.
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(A) {(1, 1, 0), (1, 0, -1)}
(B) {(0, 1, 1), (1, 0, 1)}
(C) {(1, 0, 1), (0, 1, -1)} (Correct Answer)
(D) {(0, 0, -1), (1, -1, 0)}
Question No.52 (Question Id - 6)
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Study the given information carefully and answer the question that follow :
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing last.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
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(v) D is sitting third from the south end.
Which of the following pairs of people are sitting at the extreme ends ?
(A) AB (Correct Answer)
(B) AE
(C) CB
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(D) FB
Question No.53 (Question Id - 60)
Which of the following statements related to C++ constructor is/are FALSE ?
A. It is not valid to declare a constructor to return a value of any type, including void.
B. Constructors can be declared static or virtual.
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C. When a constructor is declared to accept no arguments, it is called a "default" constructor.
D. More than three constructors cannot be declared for a class, even they take different types and numbers of arguments.
Choose the most appropriate answer from the options given below :
(A) A and C only
(B) B and D only
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(C) None of these (Correct Answer)
Firstranker's choice
Question No.56 (Question Id - 63)
Match List - I with List - II:
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| List - I | List - II |
|---|---|
| A. Process Arrival time | I. Ratio of the turn-around time of a job/process to its own service time. |
| B. Weighted turn-around | II. Time when a user submits a job/process. |
| C. Service time | III. Time when the system starts considering a job/ process for scheduling. |
| D. Admission time | IV. The total of CPU time and I/O time required by a job/process or subrequest to complete its operation. |
Choose the correct answer from the options given below:
(A) A-IV, B - I, C - III, D - II
(B) A-II, B - I, C - IV, D - III (Correct Answer)
(C) A-II, B - IV, C - I, D - III
(D) A-I, B - II, C - III, D - IV
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Question No.57 (Question Id - 50)
Consider an algorithm whose time complexity is defined using the following recurrence function :
T(n) = 3T(n/2) + log2n
What will be the value of T(n) in asymptotic notation ?
(?) ?(n) = ?(n2)
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(?) ?(n) = ?(n log23)
(C) T(n) = ?(nlog23) (Correct Answer)
(D) T(n) = ?(n log2n)
Question No.58 (Question Id - 73)
Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies
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F = {AB ? C, A ? DE, B ? F, F ? GH, D ? I, J}
Which of the following options gives the key of R?
(A) BC
(B) CD
(C) BCD
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(D) AB (Correct Answer)
Question No.59 (Question Id - 21)
Consider the linear transformation T : R4 ? R4 given by
T(x, y, z, u) = (x, y, 0, 0), ? (x, y, z, u) ? R4 . Then which one of the following is correct?
(A) Rank T = Nullity T = 3
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(B) Rank T = Nullity T = 2 (Correct Answer)
(C) Rank T > Nullity T
(D) Rank T < Nullity T
Question No.60 (Question Id - 59)
Which of the following C++ statements are true ?
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A. A static member function can be declared as virtual.
B. A constructor can be declared as virtual.
C. Friend relationship is not inheritable.
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