ISRO Scientist or Engineer Computer Science 2015

ISRO Scientist or Engineer Computer Science 2015 - Question 1

Report

Which of the given number has its IEEE-754 32-bit floating-point representation as
(0 10000000 110 0000 0000 0000 0000 0000)

A

2.5

B

3.0

C

3.5

D

45

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 2

Report

The range of integers that can be represented by an n-bit 2’s complement number system is

A

$$-2^{n-1} to (2^{n-1}-1)$$

B

$$-2(2^{n-1}-1) to (2^{-n-1}-1)$$

C

$$-2^{n-1} to 2^{n-1}$$

D

$$-2(2^{n-1}+1) to (2^{-n-1}-1)$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 3

Report

How many 32 K x 1 RAM chipsare needed to provide a memory capacity of 256 K-bytes?

A

8

B

32

C

64

D

128

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 4

Report

A modulus-12 ring counter requires a minimum of

A

10 flip-flops

B

12 flip-flops

C

8 flip-flops

D

6 flip-flops

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 5

Report

The complement of the Boolean expression $$AB(\overline{B}C + AC)$$ is

A

$$(\overline{A} + \overline{B}) + (B  + \overline{C}).(\overline{A} + \overline{C})$$

B

$$(\overline{A} . \overline{B}) + (B \overline{C} + \overline{A} \overline{C})$$

C

$$(\overline{A} + \overline{B}) . (B + \overline{C}) + (A + \overline{C})$$

D

$$(A + B).(\overline{B} + C)(A + C)$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 6

Report

The code which uses 7 bits to represent a character is

A

ASCII

B

BCD

C

‘EBCDIC

D

Gray

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 7

Report

If half adders and full adders are implements using gates, then for the addition of two 17 bit numbers (using minimum gates) the numberofhalf adders and full adders required will be

A

0,17

B

16,1

C

1, 16

D

8,8

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 8

Report

Minimum number of 2 x 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.

A

1

B

2

C

3

D

7

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 9

Report

The numberof is in the binary representation of (3 * 4096 +15 * 256 +5+*16+3) are

A

8

B

9

C

10

D

12

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 10

Report

The boolean expression AB + AB' + A'C + AC is independent of the boolean variable

A

A

B

B

C

C

D

None of these

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 11

Report

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

A

2,2,1,1,2

B

2, 2,1, 2,2

C

2,1,2,2,1

D

2,1,2,2,2

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 12

Report

A machine needs a minimum of 100 sec to sort 1000 names by quick sort. The minimum time needed to sort 100 names will be approximately

A

50.2sec

B

6.7 sec

C

72.7 sec

D

11.2 sec

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 13

Report

Six files Fl, F2, F3, F4, F5 and F6 have 100, 200, 50, 80, 120, 150 records respectively.In what order should they be stored so as to optimize act. Assume eachfile is accessed with the same frequency

A

F3, F4, Fi, F5, F6, F2

B

F2, F6, P5, Fi, F4, F3

C

F1, F2, F3, F4, F5, F6

D

Ordering is immaterial as all files are accessed with the same frequenc

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 14

Report

A hash table with 10 buckets with one slot per bucket is depicted in fig. The symbols, S1 and S7 are initially entered using a hashing function with linear probing. The maximum number of comparisons needed in searching an item that is not present is

A

4

B

5

C

6

D

3

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 15

Report

The queue data structure is to be realized by using stack. The number of stacks needed would be

A

It cannot be implemented

B

2 stacks

C

4 stacks

D

1 stack

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 16

Report

Consider the following Entity Relationship Diagram (ERD)

Which of the following possible relations will not hold if the above ERD is mapped into a relation model?

A

Person (NID, Name)

B

Qualification (NID, ExamID, QualifiedDate)

C

Exam (ExamID, NID, ExamName)

D

Exam (ExamID, ExamName)

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 17

Report

Consider the following log sequence of two transactions on a bank account, with initial balance 12000, that transfer 2000 to a mortgage payment and, then apply a 5% interest
(i) T1 start
(ii) T1 Bold = 12000 new = 10000
(iii) T1M old =0 new = 2000
(iv) Tl commit
(v) T2 start
(vi) T2Bold= 10000 new = 10500
(vii) T2 commit
Suppose the database system crashedjust before log record 7 is written. Whenthe system is restarted, which one statementis true of the recovery procedure?

A

We must redo log record 6 set B to 10500

B

We must undo log record 6 to set B to 10000 and then redo log record 2 and 3

C

We need not redo log records 2 and 3 because transaction T1 has committed

D

We can apply redo and undo operations in arbitrary order because they are idempotent

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 18

Report

Given a block can hold either 3 records or 10 key pointers. A database contains n records, then how many blocks do we need to hold the data file and the dense index

A

$$\frac{13n}{30}$$

B

$$\frac{n}{3}$$

C

$$\frac{n}{10}$$

D

$$\frac{n}{30}$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 19

Report

The maximum length of an attribute of type text is

A

127

B

255

C

256

D

It is variable

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 20

Report

Let R =(A,B,C,D, E,F) be a relation scheme with the following dependencies $$C \rightarrow F, E \rightarrow A, EC \rightarrow D,A \rightarrow B.$$ Which of the following is a key for R?

A

CD

B

EC

C

AE

D

AC

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 21

Report

If $$D_1, D_2, ....., D_n$$ are domains in a relational model, then the relation is a table, which is a subset of

A

$$D_{1} \oplus D_{2} \oplus ...........\oplus D_{n}$$

B

$$D_{1} \times D_{2} \times ...........\times D_{n}$$

C

$$D_{1} \cup D_{2} \cup ...........\cup D_{n}$$

D

$$D_{1} \cap D_{2} \cap ...........\cap D_{n}$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 22

Report

Consider the following relational query on the above database:
SELECT S.sname
FROM Suppliers S
a WHERE S.sid NOT IN (SELECT C.sid 
     FROM Catalog C
     WHERE C.pid NOT IN (SELECT P.pid
             FROM Parts P
             WHERE P.color < > ‘blue’))
Assume that relations corresponding to the above schema are not empty. Which of the following is the correct interpretation of the above query?

A

Find the namesof all suppliers who have supplied a non-blue part

B

Find the namesofall suppliers who have not supplied a non-blue part

C

Find the namesofall suppliers who have supplied only non-blue parts

D

Find the namesofall suppliers who have not supplied only non-blue parts

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 23

Report

Consider the following schema:
Emp (Empcode, Name, Sex, Salary, Deptt)
A simple SQL query is executedasfollows:
SELECT Deptt FROM Emp
WHEREsex = ‘M’
GROUP by Dept
Having avg (Salary) > { select avg (Salary) from Emp}
The output will be

A

Average salary of male employeeis the average salary of the organization

B

Average salary of male employeeis less than the average salary of the organization

C

Average salary of male employee is equal to the average salary of the organization

D

Average salary of male employees is more than the average salary of the organization

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 24

Report

Given the following expression grammar:
$$E \rightarrow  E * F \mid F + E \mid F$$
$$F \rightarrow F - F \mid  id$$
Which of the following is true?

A

*has higher precedence than +

B

—has higher precedence than *

C

+and—have same precedence

D

+has higher precedence than *

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 25

Report

The number of token the following C statementis
printf (“i = %d, &i =%x”, i&i);

A

13

B

6

C

10

D

11

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 26

Report

Which grammar rules violate the requirement of the operator grammar? A, B, C are
variables and a, b, c are terminals
(i) $$A \rightarrow BC$$
(ii) $$A \rightarrow CcBb$$
(iii) $$A \rightarrow BaC$$
(iv) $$A \rightarrow ε$$

A

(i) only

B

(i) and (ii)

C

(i) and (iii)

D

(i) and (iv)

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 27

Report

Which one of the following is a top-down parser?

A

Recursive descent parser

B

Shift left associative parser

C

SLR (k) parser

D

LR (k) parser

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 28

Report

Yacc stands for

A

yet accept compiler constructs

B

yet accept compiler compiler

C

yet another compiler constructs

D

yet another compiler compiler

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 29

Report

Which statementis true?

A

LALR parser is most powerful and costly as compare to other parsers

B

All CFG’s are LP andnot all grammarsare uniquely defined

C

Every SLR grammaris unambiguous butnot every unambiguous grammar is SLR

D

LR(K) is the most general back tracking shift reduce parsing method

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 30

Report

Semaphoresare used to solve the problem of
(i) race condition
(ii) process synchronization
(iii) mutual exclusion
(iv) none of the above

A

(i) and(ii)

B

(i) and (iii)

C

All of the above

D

None of the above

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 31

Report

If there are 32 segments, each size 1 k bytes, then the logical address should have

A

13 bits

B

14 bits

C

15 bits

D

16 bits

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 32

Report

In a lottery scheduler with 40 tickets, how we will distribute the tickets among 4 processes P1, P2, P3 and P4 such that each process gets 10%, 5%, 60% and 25% respectively?

A

$$P_1 - 12, P_2 - 4, P_3 - 70,  P_4 - 30$$

B

$$P_1 - 7, P_2 - 5, P_3 - 20, P_4 - 10$$

C

$$P_1 - 4, P_2 - 2, P_3 - 24, P_4 - 10$$

D

$$P_1 - 8, P_2 - 5, P_3 - 40, P_4 - 30$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 33

Report

Suppose a system contains n processes and system uses the round-robin algorithm for CPU scheduling then which data structure is best suited ready queue of the processes

A

stack

B

queue

C

circular queue

D

tree

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 34

Report

A hard disk system has the following parameters:
Numberoftrack = 500
$$\frac{Numberof sectors}{track}$$ = 100
$$\frac{Numberof bytes}{sector}$$ = 500
Time taken by the head to move from one track to adjacent track = 1 ms
Rotation speed = 600 rpm
Whatis the average time taken for transferring 250 bytes from the disk?

A

300.5 ms

B

255.5 ms

C

255 ms

D

300 ms

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 35

Report

At a particular time of computation the value of a counting semaphore is 7. Then 20 P operations and 15 V operation were completed on this semaphore. The resulting value of the semaphore is

A

42

B

2

C

7

D

12

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 36

Report

Increasing the RAM of a computer typically improves performance because

A

Virtual memory increases

B

Larger RAMsare faster

C

Fewer page faults occur

D

Fewer segmentation faults occur

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 37

Report

Consider the following program ~
main( )
{
fork() ;
fork() ;
fork() ;
}
How many new processes will be created?

A

9

B

6

C

7

D

5

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 38

Report

Suppose two jobs, each of which needs 10 min of CPU time, start simultaneously. Assume 50% $$\frac{I}{O}$$ wait time.
How long will it take for both to complete if they run sequentially?

A

10

B

20

C

30

D

40

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 39

Report

If a node has K children in B tree, then the node contains exactly .................... keys.

A

$$K^{2}$$

B

$$K - 1$$

C

$$K + 1$$

D

$$\sqrt{K}$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 40

Report

The time complexity of the following C function is (assume n > Q):
int recursive (int n) {
if (n == 1)
return (1);
else
return (recursive (n -1) + recursive (n -1));
}

A

$$O(n)$$

B

$$O(n \log n)$$

C

$$O(n^{2})$$

D

$$O(2^{n})$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 41

Report

The number of spanning trees for a complete graph with seven vertices is

A

$$2^{5}$$

B

$$7^{5}$$

C

$$3^{5}$$

D

$$2^{2 \times 5}$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 42

Report

If one uses straight two-way merge sort algorithm to sort the following elements in-~ ascending order : 20, 47, 25, 8, 9, 4, 40, 30, 12, 17, then the order of these elements after second passofthe algorithms is

A

8, 9, 15, 20, 47, 4, 12, 7, 30, 30

B

8, 15, 20, 47, 4, 9, 30, 40, 12, 17

C

15, 20, 47, 4, 8, 9, 12, 30, 40, 17

D

4, 8, 9, 15, 20, 47, 12, 17, 30, 40

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 43

Report

Let Rl and R2 be regular sets defined over the alphabet, then

A

$$R_{1} \cap R_{2}$$ is not regular

B

$$R_{1} \cup R_{2}$$ is not regular

C

$$\sum^{*}-R_{1}$$ is regular

D

$$(R_{1})^{*}$$ is not regular

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 44

Report

The DNS mapsthe IP addresses to

A

A binary addressas strings

B

An alphanumeric address

C

A hierarchy of domain names

D

A hexadecimal address

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 45

Report

To add a backgroundcolor for all <h1> elements, which of the following HTML syntax is used

A

h1 {background-color : #FFFFFF}

B

{background—color: #FFFFFF} . hl

C

{background-color : #FFFFFF} . h1(all)

D

h1. all{ bgcolor= #FFFFFF}

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 46

Report

The correct syntax to write “Hi There” in Javascript is

A

jscript-write (“Hi There”)

B

response.write (“Hi There”)

C

print (“Hi There”)

D

print.jscript (“Hi There”)

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 47

Report

To declare the version of XML, the correct syntax is

A

<?xml version="1.0'/>

B

<*xml version="1.0'/>

C

<?xml version="1.0"/>

D

</xml version="t.0'/>

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 48

Report

A T-switch is used to

A

Control how messages are passed between computers

B

Echo every character that is received

C

Transmit characters one at a time

D

Rearrange the connections between computing equipments

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 49

Report

What frequency range is used for microwave communications,satellite and radar?

A

Low frequency: 30 kHz to 300 kHz

B

Medium frequency: 300 kHz to 3 MHz

C

Super high frequency: 3000 MHz to 30000 MHz

D

Extremely high frequency: 30000 kHz

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 50

Report

How manybits internet address is assigned to each host on a TCP/IP internet which is used in all communication with the host?

A

16 bits

B

32 bits

C

48 bits

D

64 bits

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 51

Report

How manycharacters per sec (7 bits +1 parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 start and 1 stop bit)?

A

300

B

240

C

250

D

275

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 52

Report

In CRC if the data unit is 100111001 and the divisor is 1011 then whatis dividend at the sreceiver?

A

100111001101

B

100111001011

C

100111001

D

100111001110

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 53

Report

An ACK numberof 1000 in TCP always means that

A

999 bytes have been successfully received

B

1000 bytes have been successfully received

C

1001 bytes have been successfully received

D

Noneofthe above

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 54

Report

In a class B subnet, we know the IP addressofone host and the mask as given below :
IP address = 125.134.112.66
Mask = 255.255.224.0
Whatis the first address (Network address)?

A

125.134.96.0

B

125.134.112.0

C

125.134.112.66

D

125.134.0.0

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 55

Report

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

A

4.25

B

3.5

C

450

D

350

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 56

Report

Which statement is false?

A

PING is a TCP/IP application that sends datagrams once every second in the hope of an echo response from the machine being PINGED

B

If the machine is connected and running a TCP/IP protocol stack, it should respond to the PING datagram with a datagram of its own

C

If PING encounters an error condition, an ICMP messageis not returned

D

PING display the time of the return response in milliseconds or one of several error message

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 57

Report

A router uses the following routing table :

A packet bearing a estimation address 144.16.68.117 arrives at the router. On interface will it be forwarded?

A

eth0

B

eth1

C

eth2

D

eth3

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 58

Report

Which layers of the OSI reference model are host-to-host layers?

A

Transport, session, presentation, application

B

Session, presentation, application

C

Datalink, transport, presentation, application

D

Physical, datalink, network, transport

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 59

Report

Alpha andbeta testing are forms of

A

Acceptance testing

B

Integration testing

C

System testing

D

Unit testing

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 60

Report

If in a software project the number of user input, user output, enquiries, files and external interfaces are (15, 50, 24, 12, 8), respectively, with complexity average weighing factor. The productivity if effort = 70 person-month is

A

110.54

B

408.74

C

304.78

D

220.14

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 61

Report

The contents of the flag register after execution of the following program by 8085 microprocessor will be
Program
SUB A
MVI B, (01)$$_H$$
DCR B
HLT

A

$$(54)_{H}$$

B

$$(00)_{H}$$

C

$$(01)_{H}$$

D

$$(45)_{H}$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 62

Report

The minimum time delay between theinitiation of two independent memory operations is called

A

Access time

B

Cycle time

C

Rotational time

D

Latency time

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 63

Report

Which ofthe following compression algorithmsis used to generate a .pngfile?

A

LZ78

B

Deflate

C

LZW

D

Huffman

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 64

Report

Dirty bit for a page in a pagetable

A

helps avoid unnecessary writes on a paging device

B

helps maintain LRU information

C

allowsonly read on a page

D

noneofthese

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 65

Report

Which of the following is not an image type used in MPEG?

A

A frame

B

B frame

C

D frame

D

P frame

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 66

Report

Consider an uncompressed stereo audio signal of CD quality which is sampled at 44.1 kHz and quantized using 16 bits. What is required storage space if a compression ratio of 0.5 is achieved for 10 seconds of this audio?

A

172KB

B

430 KB

C

860KB

D

1720 KB

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 67

Report

What is the compression ratio in typical mp3 audiofile?

A

4:1

B

6:1

C

8:1

D

10:1

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 68

Report

Consider the following program fragment
if (a > b)
if (b > c)
s1;
else s2;
S2 will be executed if

A

$$a \leq b$$

B

$$b > c$$

C

$$b \geq c$$ and $$a \leq b$$

D

$$a > b$$ and $$b \leq c$$

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 69

Report

If n has the value 3, then the statement a[++n] = n++;

A

assigns 3 to a[5]

B

assigns 4 to a[5]

C

assigns 4 to a[4]

D

what is assigned is compiler dependent

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 70

Report

The following program
main()
{
inc() ; inc() ; inc() ;
}
inc( )
{
static int x ;
printf(“%d”, ++x);
}

A

prints 012

B

prints 123

C

prints 3 consecutive, but unpredictable numbers

D

prints 111

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 71

Report

Consider the following program fragment
i = 6720; j = 4;
while((i % j) == 0)
{
$$i= \frac{i}{j}$$;
    j = j + 1;
}
on termination j will have the value

A

4

B

8

C

9

D

6720

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 72

Report

Consider the following declaration,
int a, *b = &a, **c = &b;
the following program fragment
a=4;
**c=5;

A

does not change the value of a

B

assigns address ofc toa

C

assigns the value of b to a

D

assigns 5 toa

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 73

Report

The output of the following program is
main( )
{
static int x[] = {1, 2, 3, 4, 5, 6, 7, 8};
int i;
for (i = 2; i < 6; ++i)
x[x[i]] = x[i);
for (i = 0; i < 8; ++i)
printf(*%d", x[i]);
}

A

1 2 3 8 3 5 5 7 8

B

1 2 3 4 5 6 7 8

C

8 7 6 5 4 3 2 1

D

1 2 3 5 4 6 7 8

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 74

Report

Which of the following has the compilation error in C?

A

int n = 17;

B

char c  = 99;

C

float f = (float) 99.32;

D

#include<stdio.h>

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 75

Report

The for loop
for(i = 0; i < 10; ++i)
printf(%d", i&1); 9
prints

A

0101010101

B

0111111111

C

0000000000

D

1111111111

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 76

Report

Consider the following statements
# define hypotenuse(a, b) sqrt (a*a + b*b);
The macro call hypotenuse (a+2, b+3);

A

Finds the hypotenuse of a triangle with sides a+2 and b+3

B

Finds the square root of $$(a+2)^{2}+(b+3)^{2}$$

C

Is invalid

D

Find the square root of 3*2+4+*b+5

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 77

Report

In X=$$\frac{M+N \times O}{P \times Q}$$ how many one-address instructions are required to evaluate it?

A

4

B

6

C

8

D

10

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 78

Report

A decimal number has 64 digits. The number of bits needed for its equivalent binary representation is

A

200

B

213

C

246

D

277

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 79

Report

Consider the following C declaration
struct {
short s[5];
union {
float y;
long z;
ju;
}t;
Assume that objects of type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirementfor variable t, ignoring alignment considerations,is

A

22 bytes

B

18 bytes

C

14 bytes

D

10 bytes

View Solution

ISRO Scientist or Engineer Computer Science 2015 - Question 80

Report

Consider the following code segment
void foo(int x, int y) .
{
x+=y;
y+=x;
}
main( )
{
int x=5.5;
foo(x,x);
}
What is the final value of x in both call by value andcall by reference, respectively?

A

5 and 16

B

5 and 12

C

5 and 20

D

12and 20

View Solution