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+2 votes

1 answer

1

ISRO2020-66
The following circuit compares two $2$-bit binary numbers, $X$ and $Y$ represented by $X_1X_0$ and $Y_1Y_0$ respectively. ($X_0$ and $Y_0$ represent Least Significant Bits) Under what conditions $Z$ will be $1$? $X>Y$ $X<Y$ $X=Y$ $X!=Y$

asked Jan 13 in Digital Logic by Satbir Boss (23.8k points) | 226 views

0 votes

1 answer

2

ISRO2020-56
For the distributions given below : Which of the following is correct for the above distributions ? Standard deviation of $A$ is significantly lower than standard deviation of $B$ Standard deviation of $A$ is slightly lower than standard deviation of $B$ Standard ... $B$ Standard deviation of $A$ is significantly higher than standard deviation of $B$

asked Jan 13 in Probability by Satbir Boss (23.8k points) | 153 views

+1 vote

2 answers

3

ISRO2020-57
The hardware implementation which provides mutual exclusion is Semaphores Test and set instructions Both options None of the options

asked Jan 13 in Operating System by Satbir Boss (23.8k points) | 337 views

+1 vote

3 answers

4

ISRO2020-55
If $x+2y=30$, then $\left(\dfrac{2y}{5}+\dfrac{x}{3} \right) + \left (\dfrac{x}{5}+\dfrac{2y}{3} \right)$ will be equal to $8$ $16$ $18$ $20$

asked Jan 13 in Numerical Ability by Satbir Boss (23.8k points) | 214 views

+1 vote

3 answers

5

ISRO2020-54
Checksum field in TCP header is ones complement of sum of header and data in bytes ones complement of sum of header, data and pseudo header in $16$ bit words dropped from IPv$6$ header format better than md$5$ or sh$1$ methods

asked Jan 13 in Computer Networks by Satbir Boss (23.8k points) | 188 views

+1 vote

1 answer

6

ISRO2020-18
Consider a $2$-dimensional array $x$ with $10$ rows and $4$ columns, with each element storing a value equivalent to the product of row number and column number. The arrow is stored in row-major format. If the first element $x[0][0]$ occupies the memory location ... , which all locations (in decimal) will be holding a value of $10$? $1018,1019$ $1022,1041$ $1013,1014$ $1000,1399$

asked Jan 13 in DS by Satbir Boss (23.8k points) | 241 views

+1 vote

1 answer

7

ISRO2020-17
Which one indicates a technique of building cross compilers? Beta cross Canadian cross Mexican cross X-cross

asked Jan 13 in Compiler Design by Satbir Boss (23.8k points) | 141 views

+2 votes

1 answer

8

ISRO2020-16
A computer which issues instructions in order, has only $2$ registers and $3$ opcodes $ADD, SUB$ and $MOV$. Consider $2$ ... is better in terms of memory accesses and by how many $MOV$ instructions ? Case $2,2$ Case $2,3$ Case $1,2$ Case $1,3$

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 173 views

+1 vote

1 answer

9

ISRO2020-15
A stack organized computer is characterised by instructions with indirect addressing direct addressing zero addressing index addressing

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 150 views

+2 votes

1 answer

10

ISRO2020-61
What is the output of the code given below? # include<stdio.h> int main() { char name[]="satellites"; int len; int size; len= strlen(name); size = sizeof(name); printf("%d",len*size); return 0; } $100$ $110$ $40$ $44$

asked Jan 13 in Programming by Satbir Boss (23.8k points) | 159 views

+1 vote

2 answers

11

ISRO2020-60
A given grammar is called ambiguous if two or more productions have the same non-terminal on the left hand side a derivation tree has more than one associated sentence there is a sentence with more than one derivation tree corresponding to it brackets are not present in the grammar

asked Jan 13 in Compiler Design by Satbir Boss (23.8k points) | 123 views

+1 vote

1 answer

12

ISRO2020-59
Consider the following recursive C function that takes two arguments unsigned int rer(unsigned int n, unsigned int r){ if(n>0)return(n%r + rer(n/r,r)); else retturn 0; } What is the return value of the function $rer$ when it is called as $rer(513,2)$ ? $9$ $8$ $5$ $2$

asked Jan 13 in Programming by Satbir Boss (23.8k points) | 134 views

+2 votes

2 answers

13

ISRO2020-58
Remote Procedure Calls are used for communication between two processes remotely different from each other on the same system communication between two processes on the same system communication between two processes on the separate systems none of the above

asked Jan 13 in Computer Networks by Satbir Boss (23.8k points) | 162 views

+1 vote

1 answer

14

ISRO2020-42
Which of the following is a type of out of order execution, with the reordering done by a compiler loop unrolling dead code elimination strength reduction software pipelining

asked Jan 13 in Compiler Design by Satbir Boss (23.8k points) | 174 views

+1 vote

1 answer

15

ISRO2020-41
Minimum number of states required in DFA accepting binary strings not ending in $”101”$ is $3$ $4$ $5$ $6$

asked Jan 13 in Theory of Computation by Satbir Boss (23.8k points) | 143 views

+1 vote

1 answer

16

ISRO2020-40
Which of the following classes of languages can validate an IPv4 address in dotted decimal format? It is to be ensured that the decimal values lie between $0$ and $255$. RE and higher CFG and higher CSG and higher Recursively enumerable language

asked Jan 13 in Theory of Computation by Satbir Boss (23.8k points) | 144 views

+1 vote

2 answers

17

ISRO2020-39
The language which is generated by the grammar $S \rightarrow aSa|bSb|a|b$ over the alphabet of $\{a,b\}$ is the set of Strings that begin and end with the same symbol All odd and even length palindromes All odd length palindromes All even length palindromes

asked Jan 13 in Theory of Computation by Satbir Boss (23.8k points) | 93 views

+2 votes

2 answers

18

ISRO2020-38
Which of the following is true? Every subset of a regular set is regular Every finite subset of non-regular set is regular The union of two non regular set is not regular Infinite union of finite set is regular

asked Jan 13 in Theory of Computation by Satbir Boss (23.8k points) | 100 views

+1 vote

1 answer

19

ISRO2020-37
Context free languages are closed under union, intersection union, kleene closure intersection, complement complement, kleene closure

asked Jan 13 in Theory of Computation by Satbir Boss (23.8k points) | 86 views

+1 vote

1 answer

20

ISRO2020-6
A non-pipeined CPU has $12$ general purpose registers $(R0,R1,R2 ..,R12)$. Following operations are supported $ADD\ Ra,\ Rb,\ Rr$ Add $Ra$ to $Rb$ and store the result in $Rr$ $MUL\ Ra,\ Rb,\ Rr$ Multiply $Ra$ to $Rb$ and store the result in $Rr$ $MUL$ ... $R0,R1$ and $R2$ and the contents of these registers must not be modified. $5$ $6$ $7$ $8$

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 137 views

+2 votes

1 answer

21

ISRO2020-5
An array of $2$ ...

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 131 views

+1 vote

2 answers

22

ISRO2020-48
Properties of $ DELETE'$ and $ TRUNCATE'$ commands indicate that After the execution of $'TRUNCATE'$ operation, $COMMIT$, and $ROLLBACK$ statements cannot be performed to retrieve the lost data, while $ DELETE'$ allows it After the execution of $'DELETE'$ and ... $'DELETE'$ and $'TRUNCATE'$ operation no retrieval is possible for the lost data

asked Jan 13 in Databases by Satbir Boss (23.8k points) | 126 views

+2 votes

2 answers

23

ISRO2020-47
How many total bits are required for a direct-mapped cache with $128$ KB of data and $1$ word block size, assuming a $32$-bit address and $1$ word size of $4$ bytes? $2$ Mbits $1.7$ Mbits $2.5$ Mbits $1.5$ Mbits

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 181 views

+1 vote

2 answers

24

ISRO2020-46
A magnetic disk has $100$ cylinders, each with $10$ tracks of $10$ sectors. If each sector contains $128$ bytes, what is the maximum capacity of the disk in kilobytes? $1,280,000$ $1280$ $1250$ $128,000$

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 172 views

+2 votes

1 answer

25

ISRO2020-45
Avalanche effect in cryptography refers Large change in cipher text when the keyword is changed minimally Large changes in cipher text when the plain text is changed Large Impact of keyword change to length of the cipher text None of the above

asked Jan 13 in Computer Networks by Satbir Boss (23.8k points) | 128 views

+1 vote

2 answers

26

ISRO2020-44
In a columnar transportation cipher, the plain text is “the tomato is a plant in the night shade family”, keyword is “$TOMATO$”. The cipher text is $”TINESAX/EOAHTFX/HTLTHEY/MAIIAIX/TAPNGDL/OSTNHMX”$ $”TINESAX/EOAHTFX/MAIIAIX/HTLTHEY/TAPNGDL/OSTNHMX”$ $”TINESAX/EOAHTFX/HTLTHEY/MAIIAIX/OSTNHMX/TAPNGDL”$ $”EOAHTFX/TINESAX/HTLTHEY/MAIIAIX/TAPNGDL/OSTNHMX”$

asked Jan 13 in Computer Networks by Satbir Boss (23.8k points) | 109 views

+1 vote

1 answer

27

ISRO2020-43
Which of the following is an efficient method of cache updating Snoopy writes Write through Write within Buffered write

asked Jan 13 in CO and Architecture by Satbir Boss (23.8k points) | 115 views

+2 votes

2 answers

28

ISRO2020-53
The persist timer is used in TCP to To detect crashes from the other end of the connection To enable retransmission To avoid deadlock condition To timeout FIN_WAIT$1$ condition

asked Jan 13 in Computer Networks by Satbir Boss (23.8k points) | 130 views

+1 vote

1 answer

29

ISRO2020-52
To send same bit sequence, NRZ encoding require Same clock frequency as Manchester encoding Half the clock frequency as Manchester encoding Twice the clock frequency as Manchester encoding A clock frequency which depends on number of zeroes and ones in the bit sequence

asked Jan 13 in Digital Logic by Satbir Boss (23.8k points) | 124 views

+2 votes

2 answers

30

ISRO2020-51
The SQL query SELECT columns FROM TableA RIGHT OUTER JOIN TableB ON A.columnName = B.columnName WHERE A.columnName IS NULL returns the following : All the rows in Table $B$, which meets equality condition above and, none from Table $A$ which meets the ... condition. All rows in Table $B$, which meets the equality condition All rows in Table $A$, which meets the equality condition

asked Jan 13 in Databases by Satbir Boss (23.8k points) | 220 views

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content	content:apple
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force match	+apple
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score	score:10
answers	answers:2
is accepted	isaccepted:true
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