Gate IT - Sample Paper 2
· Added August 2010
Information Technology
1 In a population of N families, 50% of the families have three children,
30% of the families have two children and the remaining families have one child.
What is the probability that a randomly picked child belongs to a family with
two children?
A) 3/23
B) 6/23
C) 3/10
D) 3/5
Answer :
(B)
2 Which one of the following is NOT shared by the threads of
the same process ?
A) Stack
B) Address Space
C) File Descriptor
Table
D) Message Queue
Answer : (A)
3 A subnet has been
assigned a subnet mask of 255.255.255.192. What is the maximum number of hosts
that can belong to this subnet?
A) 14.
B) 30
C) 62
D)
126
Answer : (C)
4 A software organization has been assessed
at SEI CMM Level 4. Which of the following does the organization need to
practice beside Process Change Management and Technology Change Management in
order to achieve Level 5 ?
A) Defect Detection
B) Defect
Prevention
C) Defect Isolation
D) Defect Propagation
Answer :
(B)
5 Suppose that two parties A and B wish to setup a common
secret key (D-H key) between themselves using the Diffle-Hellman key exchange
technique. They agree on 7 as the modulus and 3 as the primitive root. Party A
chooses 2 and party B chooses 5 as their respective secrets. Their D-H key is
A) 3
B) 4
C) 5
D) 6
Answer : (C)
6 We have
two designs D1 and D2 for a synchronous pipeline processor. D1 has 5 pipeline
stages with execution times of 3 nsec, 2 nsec, 4 nsec, 2 nsec and 3 nsec while
the design D2 has 8 pipeline stages each with 2 nsec execution time. How much
time can be saved using design D2 over design D1 for executing 100 instructions?
A) 214 nsec
B) 202 nsec
C) 86 nsec
D) -200 nsec
Answer :
(A)
7 Which of the following statements is FALSE regarding a
bridge
A) Bridge is a layer 2 device
B) Bridge reduces collision
domain
C) Bridge is used to connect two or more LAN segments
D) Bridge
reduces broadcast domain
Answer : (D)
8 What is the
availability of a software with the following reliability figures?
Mean Time
Between Failure (MTBF) = 25 days
Mean Time To Repair (MTTR) = 6
hours
A) 1%
B) 24%
C) 99%
D) 99.009%
Answer :
(B)
9 In a particular Unix OS, each data block is of size 1024
bytes, each node has 10 direct data block addresses and three additional
addresses: one for single indirect block, one for double indirect block and one
for triple indirect block. Also, each block can contain addresses for 128
blocks. Which one of the following is approximately the maximum size of a file
in the file system?
A) 512 MB
B) 2 GB
C) 8 GB
D) 16
GB
Answer : (D)
10 On a TCP connection, current congestion
window size is Congestion Window = 4 KB. The window size advertised by the
receiver is Advertise Window = 6 KB. The last byte sent by the sender is
LastByteSent = 10240 and the last byte acknowledged by the receiver is
LastByteAcked = 8192. The current window size at the sender is
A) 2048
bytes
B) 4096 bytes
C) 6144 bytes
D) 8192 bytes
Answer :
(B)
11 Which of the following statements is TRUE about CSMA/CD
A) IEEE 802.11 wireless LAN runs CSMA/CD protocol
B) Ethernet is not
based on CSMA/CD protocol
C) CSMA/CD is not suitable for a high propagation
delay network like satellite network
D) There is no contention in a CSMA/CD
network
Answer : (C)
12 How many pulses are needed to
change the contents of a 8-bit upcounter from 10101100 to 00100111 (rightmost
bit is the LSB)?
A) 134
B) 133
C) 124
D) 123
Answer :
(B)
1 In a population of N families, 50% of the families have three children,
30% of the families have two children and the remaining families have one child.
What is the probability that a randomly picked child belongs to a family with
two children?
A) 3/23
B) 6/23
C) 3/10
D) 3/5
Answer :
(B)
2 Which one of the following is NOT shared by the threads of
the same process ?
A) Stack
B) Address Space
C) File Descriptor
Table
D) Message Queue
Answer : (A)
3 A subnet has been
assigned a subnet mask of 255.255.255.192. What is the maximum number of hosts
that can belong to this subnet?
A) 14.
B) 30
C) 62
D)
126
Answer : (C)
4 A software organization has been assessed
at SEI CMM Level 4. Which of the following does the organization need to
practice beside Process Change Management and Technology Change Management in
order to achieve Level 5 ?
A) Defect Detection
B) Defect
Prevention
C) Defect Isolation
D) Defect Propagation
Answer :
(B)
5 Suppose that two parties A and B wish to setup a common
secret key (D-H key) between themselves using the Diffle-Hellman key exchange
technique. They agree on 7 as the modulus and 3 as the primitive root. Party A
chooses 2 and party B chooses 5 as their respective secrets. Their D-H key is
A) 3
B) 4
C) 5
D) 6
Answer : (C)
6 We have
two designs D1 and D2 for a synchronous pipeline processor. D1 has 5 pipeline
stages with execution times of 3 nsec, 2 nsec, 4 nsec, 2 nsec and 3 nsec while
the design D2 has 8 pipeline stages each with 2 nsec execution time. How much
time can be saved using design D2 over design D1 for executing 100 instructions?
A) 214 nsec
B) 202 nsec
C) 86 nsec
D) -200 nsec
Answer :
(A)
7 Which of the following statements is FALSE regarding a
bridge
A) Bridge is a layer 2 device
B) Bridge reduces collision
domain
C) Bridge is used to connect two or more LAN segments
D) Bridge
reduces broadcast domain
Answer : (D)
8 What is the
availability of a software with the following reliability figures?
Mean Time
Between Failure (MTBF) = 25 days
Mean Time To Repair (MTTR) = 6
hours
A) 1%
B) 24%
C) 99%
D) 99.009%
Answer :
(B)
9 In a particular Unix OS, each data block is of size 1024
bytes, each node has 10 direct data block addresses and three additional
addresses: one for single indirect block, one for double indirect block and one
for triple indirect block. Also, each block can contain addresses for 128
blocks. Which one of the following is approximately the maximum size of a file
in the file system?
A) 512 MB
B) 2 GB
C) 8 GB
D) 16
GB
Answer : (D)
10 On a TCP connection, current congestion
window size is Congestion Window = 4 KB. The window size advertised by the
receiver is Advertise Window = 6 KB. The last byte sent by the sender is
LastByteSent = 10240 and the last byte acknowledged by the receiver is
LastByteAcked = 8192. The current window size at the sender is
A) 2048
bytes
B) 4096 bytes
C) 6144 bytes
D) 8192 bytes
Answer :
(B)
11 Which of the following statements is TRUE about CSMA/CD
A) IEEE 802.11 wireless LAN runs CSMA/CD protocol
B) Ethernet is not
based on CSMA/CD protocol
C) CSMA/CD is not suitable for a high propagation
delay network like satellite network
D) There is no contention in a CSMA/CD
network
Answer : (C)
12 How many pulses are needed to
change the contents of a 8-bit upcounter from 10101100 to 00100111 (rightmost
bit is the LSB)?
A) 134
B) 133
C) 124
D) 123
Answer :
(B)