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ISRO 2015 Computer Science Questions with Solution

Recent questions tagged isro2015

5 votes
3 answers
34
ISRO2015-19
The maximum length of an attribute of type text is $127$ $255$ $256$ It is variable
The maximum length of an attribute of type text is$127$$255$$256$It is variable
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8 votes
3 answers
35
ISRO2015-16
Consider the following Relationship Entity Diagram(ERP) Which of the following possible relations will not hold if the above ERD is mapped into a relation model? Person (NID, Name) Qualification (NID, ExamID, QualifiedDate) Exam (ExamID, NID, ExamName) Exam (ExamID, ExamName)
Consider the following Relationship Entity Diagram(ERP)Which of the following possible relations will not hold if the above ERD is mapped into a relation model?Person (NI...
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9 votes
2 answers
36
ISRO2015-15
The queue data structure is to be realized by using stack. The number of stacks needed would be It cannot be implemented 2 stacks 4 stacks 1 stack
The queue data structure is to be realized by using stack. The number of stacks needed would beIt cannot be implemented2 stacks4 stacks1 stack
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7 votes
1 answer
37
ISRO2015-11
If the sequence of operations - push (1), push (2), pop, push (1), push (2), pop, pop, pop, push (2), pop are performed on a stack, the sequence of popped out values 2,2,1,1,2 2,2,1,2,2 2,1,2,2,1 2,1,2,2,2
If the sequence of operations - push (1), push (2), pop, push (1), push (2), pop, pop, pop, push (2), pop are performed on a stack, the sequence of popped out values2,2,1...
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9 votes
5 answers
38
ISRO2015-10
The boolean expression $\text{AB + A}\text{B}'+\text{A}'\text{C + AC}$ is independent of the boolean variable $\text{A}$ $\text{B}$ $\text{C}$ None of these
The boolean expression $\text{AB + A}\text{B}'+\text{A}'\text{C + AC}$ is independent of the boolean variable$\text{A}$$\text{B}$$\text{C}$None of these
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10 votes
6 answers
39
ISRO2015-8
Minimum number of $2 \times 1$ multiplexers required to realize the following function, $f = \overline{A} \;\overline{B} C + \overline{A}\; \overline{B} \;\overline{C}$ Assume that inputs are available only in true form and Boolean a constant $1$ and $0$ are available. $1$ $2$ $3$ $7$
Minimum number of $2 \times 1$ multiplexers required to realize the following function, $f = \overline{A} \;\overline{B} C + \overline{A}\; \overline{B} \;\overline{C}$As...
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10 votes
4 answers
40
ISRO2015-5
The complement of the Boolean expression $\text{AB}(\overline{\text{B}}\text{C + AC})$ is $(\overline{\text{A}} + \overline{\text{B}})+(\text{B} + \overline{\text{C}}). (\overline{\text{A}} + \overline{\text{C}})$ ... $\text{(A+B)} . (\overline{\text{B}}+\text{C) (A+C)}$
The complement of the Boolean expression $\text{AB}(\overline{\text{B}}\text{C + AC})$ is$(\overline{\text{A}} + \overline{\text{B}})+(\text{B} + \overline{\text{C}}). (\...
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13 votes
2 answers
41
ISRO2015-1
Which of the given number has its $\text{IEEE - 754}$ $32$-bit floating point representation as $\text{(0 10000000 110 0000 0000 0000 0000 0000)}$ $2.5$ $3.0$ $3.5$ $4.5$
Which of the given number has its $\text{IEEE - 754}$ $32$-bit floating point representation as $\text{(0 10000000 110 0000 0000 0000 0000 0000)}$$2.5$$3.0$$3.5$$4.5$
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13 votes
8 answers
42
ISRO2015-69
If n has 3, then the statement a[++n]=n++; assigns 3 to a[5] assigns 4 to a[5] assigns 4 to a[4] what is assigned is compiler dependent
If n has 3, then the statement a[++n]=n++;assigns 3 to a[5]assigns 4 to a[5]assigns 4 to a[4]what is assigned is compiler dependent
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12 votes
4 answers
43
ISRO2015-78
The decimal number has $64$ digits. The number of bits needed for its equivalent binary representation is? $200$ $213$ $246$ $277$
The decimal number has $64$ digits. The number of bits needed for its equivalent binary representation is?$200$$213$$246$$277$
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0 votes
2 answers
44
isro 2015 set a qn12
explain this? A machine needs a minimum of 100sec to sort 1000 names by quicksort.the minimum time needed to sort 100 names ?
explain this?A machine needs a minimum of 100sec to sort 1000 names by quicksort.the minimum time needed to sort 100 names ?
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4 votes
2 answers
45
ISRO2015-67
What is compression ratio in a typical mp3 audio files? 4:1 6:1 8:1 10:1
What is compression ratio in a typical mp3 audio files?4:16:18:110:1
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7 votes
5 answers
46
ISRO2015-41
The number of spanning trees for a complete graph with seven vertices is $2^5$ $7^5$ $3^5$ $2^{2 \times 5}$
The number of spanning trees for a complete graph with seven vertices is$2^5$$7^5$$3^5$$2^{2 \times 5}$
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3 votes
3 answers
47
ISRO2015-44
The DNS maps the IP address to A binary address as strings A n alphanumeric address A hierarchy of domain names A hexadecimal address
The DNS maps the IP address toA binary address as stringsA n alphanumeric addressA hierarchy of domain namesA hexadecimal address
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9 votes
1 answer
48
ISRO2015-6
The code which uses $7$ bits to represent a character is : ASCII BCD EBCDIC Gray
The code which uses $7$ bits to represent a character is :ASCIIBCDEBCDICGray
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13 votes
5 answers
50
ISRO2015-77
In $\text{X = (M + N }\times \text{O)/(P} \times \text{Q})$, how many one-address instructions are required to evaluate it? $4$ $6$ $8$ $10$
In $\text{X = (M + N }\times \text{O)/(P} \times \text{Q})$, how many one-address instructions are required to evaluate it?$4$$6$$8$$10$
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8 votes
2 answers
51
ISRO2015-76
Consider the following statements #define hypotenuse (a, b) sqrt (a*a+b*b); The macro call hypotenuse(a+2,b+3); Finds the hypotenuse of a triangle with sides $a+2$ and $b+3$ Finds the square root of $(a+2)^2$ and $(b+3)^2$ Is invalid Find the square root of $3 *a+4*b+5$
Consider the following statements#define hypotenuse (a, b) sqrt (a*a+b*b);The macro call hypotenuse(a+2,b+3);Finds the hypotenuse of a triangle with sides $a+2$ and $b+3$...
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4 votes
4 answers
53
ISRO2015-74
Which of the following has the compilation error in C? int n = 17; char c = 99; float f = (float)99.32; #include <stdio.h>
Which of the following has the compilation error in C?int n = 17;char c = 99;float f = (float)99.32;#include <stdio.h>
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11 votes
5 answers
54
ISRO2015-53
An ACK number of $1000$ in TCP always means that $999$ bytes have been successfully received $1000$ bytes have been successfully received $1001$ bytes have been successfully received None of the above
An ACK number of $1000$ in TCP always means that$999$ bytes have been successfully received$1000$ bytes have been successfully received$1001$ bytes have been successfully...
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5 votes
2 answers
55
ISRO2015-46
The correct syntax to write "Hi there" in Javascript is jscript.write ("Hi There") response.write ("Hi There") print ("Hi There") print.jscript ("Hi There")
The correct syntax to write "Hi there" in Javascript isjscript.write ("Hi There")response.write ("Hi There")print ("Hi There")print.jscript ("Hi There")
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14 votes
11 answers
56
ISRO2015-30
Semaphores are used to solve the problem of Race Condition Process Synchronization Mutual Exclusion None of the above I and II II and III All of the above None of the above
Semaphores are used to solve the problem ofRace ConditionProcess SynchronizationMutual ExclusionNone of the aboveI and IIII and IIIAll of the aboveNone of the above
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12 votes
3 answers
57
ISRO2015-4
A modulus -$12$ ring counter requires a minimum of $10$ flip-flops $12$ flip-flops $8$ flip-flops $6$ flip-flops
A modulus -$12$ ring counter requires a minimum of$10$ flip-flops$12$ flip-flops$8$ flip-flops$6$ flip-flops
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9 votes
5 answers
58
ISRO2015-7
If half adders and full adders are implements using gates, then for the addition of two $17$ bit numbers (using minimum gates) the number of half adders and full adders required will be $0,17$ $16,1$ $1,16$ $8,8$
If half adders and full adders are implements using gates, then for the addition of two $17$ bit numbers (using minimum gates) the number of half adders and full adders r...
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11 votes
10 answers
59
ISRO2015-38
Suppose two jobs, each of which needs $10$ minutes of CPU time, start simultaneously. Assume $50\%$ I/O wait time. How long will it take for both to complete, if they run sequentially? 10 20 30 40
Suppose two jobs, each of which needs $10$ minutes of CPU time, start simultaneously. Assume $50\%$ I/O wait time. How long will it take for both to complete, if they run...
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9 votes
5 answers
60
ISRO2015-55
A certain population of ALOHA users manages to generate $70$ request/sec. If the time is slotted in units of $50$ msec, then channel load would be $4.25$ $3.5$ $450$ $350$
A certain population of ALOHA users manages to generate $70$ request/sec. If the time is slotted in units of $50$ msec, then channel load would be$4.25$$3.5$$450$$350$
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