Placement Papers - ECIL
ECIL Interview Experience - TRIVANDRUM, JUNE 10, 2012
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ECIL 10 JUNE 2012 COMPUTER SCIENCE PAPER:
THERE WAS 50 QUESTION.
1) Bitstuffing is used.
A. Data compression.
B. Data hiding.
C. Synchronisation between sender and receiver.
D. Encryption.
Ans: Not sure C.
2) If a variable is a pointer to a structure, then which of the following operators is used to access data members of the structure through the pointer variable?
A. . B. & C. * D. >.
Answer: D.
3) How to declare the function outside the class.
Ans: by:: (resolution).
4) Rectifier does?
Ans: Converts AC to DC.
5) Range of long double?
6) On question was from for loop.
7) One question was from a call by reference.
8) We want to round off x, a float, to an int value, The correct way to do this is.
A. Why = (int) (x + 0. 5) B. Why = int (x + 0. 5).
C. Why = (int) x + 0. 5 D. Why = (int) ( (int) x + 0. 5).
Ans: A.
9) In a balanced binary tree the difference between the subtree child node can not be greater that.
A. 1. B. 2 C. 0 D: None of these.
Ans: 1.
10) Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1?
A. Rem = 3.14 % 2.1
B. Rem = modf (3.14, 2.1)
C. Rem = fmod (3.14, 2.1)
D. Remainder cannot be obtained in floating point division.
Ans: C.
Explanation: fmod (x, y) - Calculates x modulo y, the remainder of x/y.
This function is the same as the modulus operator. But fmod () performs floating point divisions.
11) In the goback-n-arq protocol if 10 requests sent the the acknowledgement will be.
A. 10 B. 5 C. N D. ALL
Ans: A (10).
12) The hamming distance between 100 and 001 is.
Ans: 2.
13) In which primitive data type can be used as an object.
Ans: Wrapper class.
14) Which of the following range is a valid long double?
A. 3. 4E-4932 to 1. 1E+4932 B. 3. 4E-4932 to 3. 4E+4932.
C. 1. 1E-4932 to 1. 1E+4932 D. 1. 7E-4932 to 1. 7E+4932.
Ans: A.
15) One wuestion from hit ratio.
16) Can you combine the following two statements into one?
Char *p;. P = (char*) malloc (100);.
A. Char p = *malloc (100);.
B. Char *p = (char) malloc (100);.
C. Char *p = (char*) malloc (100);.
D. Char *p = (char *) (malloc*) (100);.
Ans: C.
17) Which bitwise operator is suitable for turning off a particular bit in a number?
A. && operator B. & operator.
C. || operator D. ! operator.
Ans: B.
18) What does the following declaration mean? Int (*ptr) [10];.
A. Ptr is array of pointers to 10 integers.
B. Ptr is a pointer to an array of 10 integers.
C. Ptr is an array of 10 integers.
D. Ptr is a pointer to an array.
Ans: B.
19) One question from the pointer.
20) 3 questions from cable and signalling.
21) One question from non-linear function.
22) Which is used to count the number of rows in database query result: count (an aggregate function).
23) Which is not a role of the transport layer.
Ans: Data routing.
24) Size of the address field of ipv4 and ipv6,
Ans: Not sure.
25) Bipartite graph?
Ans: Without an odd cycle (not sure).
26) What is not there in full associative caching?
Ans: Not sure (cache coldness).
27) One question from the subnet.
THERE WAS 50 QUESTION.
1) Bitstuffing is used.
A. Data compression.
B. Data hiding.
C. Synchronisation between sender and receiver.
D. Encryption.
Ans: Not sure C.
2) If a variable is a pointer to a structure, then which of the following operators is used to access data members of the structure through the pointer variable?
A. . B. & C. * D. >.
Answer: D.
3) How to declare the function outside the class.
Ans: by:: (resolution).
4) Rectifier does?
Ans: Converts AC to DC.
5) Range of long double?
6) On question was from for loop.
7) One question was from a call by reference.
8) We want to round off x, a float, to an int value, The correct way to do this is.
A. Why = (int) (x + 0. 5) B. Why = int (x + 0. 5).
C. Why = (int) x + 0. 5 D. Why = (int) ( (int) x + 0. 5).
Ans: A.
9) In a balanced binary tree the difference between the subtree child node can not be greater that.
A. 1. B. 2 C. 0 D: None of these.
Ans: 1.
10) Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1?
A. Rem = 3.14 % 2.1
B. Rem = modf (3.14, 2.1)
C. Rem = fmod (3.14, 2.1)
D. Remainder cannot be obtained in floating point division.
Ans: C.
Explanation: fmod (x, y) - Calculates x modulo y, the remainder of x/y.
This function is the same as the modulus operator. But fmod () performs floating point divisions.
11) In the goback-n-arq protocol if 10 requests sent the the acknowledgement will be.
A. 10 B. 5 C. N D. ALL
Ans: A (10).
12) The hamming distance between 100 and 001 is.
Ans: 2.
13) In which primitive data type can be used as an object.
Ans: Wrapper class.
14) Which of the following range is a valid long double?
A. 3. 4E-4932 to 1. 1E+4932 B. 3. 4E-4932 to 3. 4E+4932.
C. 1. 1E-4932 to 1. 1E+4932 D. 1. 7E-4932 to 1. 7E+4932.
Ans: A.
15) One wuestion from hit ratio.
16) Can you combine the following two statements into one?
Char *p;. P = (char*) malloc (100);.
A. Char p = *malloc (100);.
B. Char *p = (char) malloc (100);.
C. Char *p = (char*) malloc (100);.
D. Char *p = (char *) (malloc*) (100);.
Ans: C.
17) Which bitwise operator is suitable for turning off a particular bit in a number?
A. && operator B. & operator.
C. || operator D. ! operator.
Ans: B.
18) What does the following declaration mean? Int (*ptr) [10];.
A. Ptr is array of pointers to 10 integers.
B. Ptr is a pointer to an array of 10 integers.
C. Ptr is an array of 10 integers.
D. Ptr is a pointer to an array.
Ans: B.
19) One question from the pointer.
20) 3 questions from cable and signalling.
21) One question from non-linear function.
22) Which is used to count the number of rows in database query result: count (an aggregate function).
23) Which is not a role of the transport layer.
Ans: Data routing.
24) Size of the address field of ipv4 and ipv6,
Ans: Not sure.
25) Bipartite graph?
Ans: Without an odd cycle (not sure).
26) What is not there in full associative caching?
Ans: Not sure (cache coldness).
27) One question from the subnet.
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