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ISRO 2014 Computer Science Questions with Solution

Recent questions tagged isro2014

4 votes
3 answers
32
ISRO2014-74
What is the median of data if its mode is $15$ and the mean is $30?$ $30$ $25$ $22.5$ $27.5$
What is the median of data if its mode is $15$ and the mean is $30?$$30$$25$$22.5$$27.5$
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3 votes
4 answers
33
ISRO2014-48
A frame buffer array is addressed in row major order for a monitor with pixel locations starting from $(0,0)$ and ending with $(100,100).$ What is address of the pixel $(6,10)?$ Assume one bit storage per pixel and starting pixel location is at $0.$ $1016$ $1006$ $610$ $616$
A frame buffer array is addressed in row major order for a monitor with pixel locations starting from $(0,0)$ and ending with $(100,100).$ What is address of the pixel $(...
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6 votes
3 answers
34
ISRO2014-4
Consider the following pseudo- code while (m<n) if (x>y ) and (a<b) then a=a+1 y=y-1 end if m=m+1 end while What is cyclomatic complexity of the above pseudo -code? 2 3 4 5
Consider the following pseudo- codewhile (m<n) if (x>y ) and (a<b) then a=a+1 y=y-1 end if m=m+1 end whileWhat is cyclomatic complexity of the above pseudo -code?2345
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2 votes
4 answers
35
ISRO2014-47
The following three 'C' language statements is equivalent to which single statement? y=y+1; z=x+y; x=x+1 z = x + y + 2; z = (x++) + (++y); z = (x++) + (y++); z = (x++) + (++y) + 1;
The following three 'C' language statements is equivalent to which single statement?y=y+1; z=x+y; x=x+1z = x + y + 2;z = (x++) + (++y);z = (x++) + (y++);z = (x++) + (++y)...
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4 votes
4 answers
36
ISRO2014-16
What is routing algorithm used by OSPF routing protocol? Distance vector Flooding Path vector Link state
What is routing algorithm used by OSPF routing protocol?Distance vectorFloodingPath vectorLink state
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4 votes
1 answer
37
ISRO2014-9
Let $\text{R}$ be the radius of the circle. What is the angle subtended by an arc of length $\text{R}$ at the center of the circle? $1$ degree $1$ radian $90$ degrees $\pi$ radians
Let $\text{R}$ be the radius of the circle. What is the angle subtended by an arc of length $\text{R}$ at the center of the circle?$1$ degree $1$ radian $90$ degrees$...
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6 votes
2 answers
38
ISRO2014-72
The rank of the matrix $A=\begin{pmatrix} 1 & 2 & 1 & -1\\ 9& 5& 2& 2\\ 7& 1& 0 & 4 \end{pmatrix}$ is ______ . $0$ $1$ $2$ $3$
The rank of the matrix $A=\begin{pmatrix} 1 & 2 & 1 & -1\\ 9& 5& 2& 2\\ 7& 1& 0 & 4 \end{pmatrix}$ is ______ .$0$$1$$2$$3$
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8 votes
4 answers
39
ISRO2014-56
Which of the following is not valid Boolean algebra rule? $\text{X.X = X}$ $\text{(X+Y).X = X}$ $\overline{X}+\text{XY = Y}$ $\text{(X+Y).(X+Z) = X + YZ}$
Which of the following is not valid Boolean algebra rule?$\text{X.X = X}$$\text{(X+Y).X = X}$$\overline{X}+\text{XY = Y}$$\text{(X+Y).(X+Z) = X + YZ}$
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7 votes
9 answers
40
ISRO2014-3
What is the output of the following C program? #include<stdio.h> #define SQR(x) (x*x) int main() { int a; int b=4; a=SQR(b+2); printf("%d\n",a); return 0; } 14 36 18 20
What is the output of the following C program? #include<stdio.h #define SQR(x) (x*x) int main() { int a; int b=4; a=SQR(b+2); printf("%d\n",a); return 0; }14361820
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5 votes
2 answers
41
ISRO2014-40
Assume that $16$-bit CPU is trying to access a double word stating at an odd address. How many memory operations are required to access the data? $1$ $2$ $3$ $4$
Assume that $16$-bit CPU is trying to access a double word stating at an odd address. How many memory operations are required to access the data?$1$$2$$3$$4$
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6 votes
3 answers
42
ISRO2014-38
How many lines of output does the following C code produce? #include<stdio.h> float i=2.0; float j=1.0; float sum = 0.0; main() { while (i/j > 0.001) { j+=j; sum=sum+(i/j); printf("%f\n", sum); } } 8 9 10 11
How many lines of output does the following C code produce?#include<stdio.h float i=2.0; float j=1.0; float sum = 0.0; main() { while (i/j 0.001) { j+=j; sum=sum+(i/j); ...
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6 votes
5 answers
43
ISRO2014-77
What is the size of the physical address space in a paging system which has a page table containing 64 entries of 11 bit each (including valid and invalid bit) and a page size of 512 bytes? $2^{11}$ $2^{15}$ $2^{19}$ $2^{20}$
What is the size of the physical address space in a paging system which has a page table containing 64 entries of 11 bit each (including valid and invalid bit) and a page...
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8 votes
4 answers
44
ISRO2014-27
How many different $\text{BCD}$ numbers can be stored in $12$ switches ? (Assume two position or on-off switches). $2^{12}$ $2^{12}-1$ $10^{12}$ $10^3$
How many different $\text{BCD}$ numbers can be stored in $12$ switches ? (Assume two position or on-off switches).$2^{12}$$2^{12}-1$$10^{12}$$10^3$
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7 votes
5 answers
45
ISRO2014-33
The following Finite Automaton recognizes which of the given languages? $\{ 1, 0 \}^* \{ 0 1 \}$ $\{ 1,0\}^*\{ 1\}$ $\{ 1 \} \{1, 0\}^*\{ 1 \}$ $1^*0^*\{0,1\}$
The following Finite Automaton recognizes which of the given languages?$\{ 1, 0 \}^* \{ 0 1 \}$$\{ 1,0\}^*\{ 1\}$$\{ 1 \} \{1, 0\}^*\{ 1 \}$$1^*0^*\{0,1\}$
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4 votes
1 answer
47
ISRO2014-7
What does a pixel mask mean? string containing only $1\text{'s}$ string containing only $0\text{'s}$ string containing two $0\text{'s}$ string containing $1\text{'s}$ and $0\text{’s}$
What does a pixel mask mean?string containing only $1\text{'s}$string containing only $0\text{'s}$string containing two $0\text{'s}$string containing $1\text{'s}$ and $0\...
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3 votes
2 answers
48
ISRO2014-23
The test suite (set of test input) used to perform unit testing on a module could cover 70% of the code. What is the reliability of the module if the probability of success is 0.95 during testing? 0.665 to 0.95 At the most 0.665 At the most 0.95 At least 0.665
The test suite (set of test input) used to perform unit testing on a module could cover 70% of the code. What is the reliability of the module if the probability of succe...
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5 votes
3 answers
49
ISRO2014-34
How much memory is required to implement $z$-buffer algorithm for a $512 \times 512 \times 24$ bit-plane image? $768$ KB $1$ MB $1.5$ MB $2$ MB
How much memory is required to implement $z$-buffer algorithm for a $512 \times 512 \times 24$ bit-plane image?$768$ KB$1$ MB$1.5$ MB$2$ MB
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4 votes
3 answers
51
ISRO2014-71
Which of the following is not a valid multicast MAC address? $\textsf{01:00:5E:00:00:00}$ $\textsf{01:00:5E:00:00:FF}$ $\textsf{01:00:5E:00:FF:FF}$ $\textsf{01:00:5E:FF:FF:FF}$
Which of the following is not a valid multicast MAC address?$\textsf{01:00:5E:00:00:00}$$\textsf{01:00:5E:00:00:FF}$$\textsf{01:00:5E:00:FF:FF}$$\textsf{01:00:5E:FF:FF:FF...
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9 votes
9 answers
52
ISRO2014-73
How many different trees are there with four nodes $\text{A, B, C}$ and $\text{D}?$ $30$ $60$ $90$ $120$
How many different trees are there with four nodes $\text{A, B, C}$ and $\text{D}?$$30$$60$$90$$120$
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5 votes
3 answers
53
ISRO2014-75
An organization is granted the block $130.34.12.64/26.$ It needs to have $4$ subnets. Which of the following is not an address of this organization? $130.34.12.124$ $130.34.12.89$ $130.34.12.70$ $130.34.12.132$
An organization is granted the block $130.34.12.64/26.$ It needs to have $4$ subnets. Which of the following is not an address of this organization?$130.34.12.124$$130.34...
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2 votes
1 answer
54
ISRO2014-59
Which of the following is FALSE with respect to possible outcomes of executing a Turing Machine over a given input? it may halt and accept the input it may halt by changing the input it may halt and reject the input it may never halt
Which of the following is FALSE with respect to possible outcomes of executing a Turing Machine over a given input?it may halt and accept the inputit may halt by changing...
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2 votes
4 answers
55
ISRO2014-57
A supernet has a first address of $205.16.32.0$ and a supernet mask of $255.255.248.0.$ A router receives $4$ packets with the following destination addresses. Which packet belongs to this supernet? $205.16.42.56$ $205.17.32.76$ $205.16.31.10$ $205.16.39.44$
A supernet has a first address of $205.16.32.0$ and a supernet mask of $255.255.248.0.$ A router receives $4$ packets with the following destination addresses. Which pac...
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2 votes
2 answers
57
ISRO2014-42
Let $x,y,z,a,b,c$ be the attributes of an entity set E. If $\{x\} ,\{x,y\}, \{a,b\},\{a,b,c\}, \{x,y,z\}$ are superkeys then which of the following are the candidate keys? $\{x,y\}$ and $\{a,b\}$ $\{x\}$ and $\{a,b\}$ $\{x,y,z\}$ and $\{a,b,c\}$ $\{z\}$ and $\{c\}$
Let $x,y,z,a,b,c$ be the attributes of an entity set E. If $\{x\} ,\{x,y\}, \{a,b\},\{a,b,c\}, \{x,y,z\}$ are superkeys then which of the following are the candidate keys...
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7 votes
4 answers
59
ISRO2014-31
A IP packet has arrived in which the fragmentation offset value is $100,$ the value of $\textsf{HLEN}$ is $5$ and the value of total length field is $200.$ What is the number of the last byte? $194$ $394$ $979$ $1179$
A IP packet has arrived in which the fragmentation offset value is $100,$ the value of $\textsf{HLEN}$ is $5$ and the value of total length field is $200.$ What is the nu...
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3 votes
3 answers
60
ISRO2014-24
In a system an RSA algorithm with $p=5$ and $q=11$, is implemented for data security. What is the value of the decryption key if the value of the encryption key is $27?$ $3$ $7$ $27$ $40$
In a system an RSA algorithm with $p=5$ and $q=11$, is implemented for data security. What is the value of the decryption key if the value of the encryption key is $27?$$...
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