Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 37
Q1161:
The goal of congestion control is to avoid adding ________ to an already congested network.
A. retransmissions
B. delays
C. errors
D. routing loops
Correct Answer:
A
Chapter: 37
Q1162:
Congestion control reduces the ________ quickly in response to lost messages.
A. buffer size
B. window size
C. packet size
D. segment size
Correct Answer:
B
Chapter: 37
Q1163:
In congestion control, it is assumed that packet loss is due to ________.
A. congestion
B. link failure
C. security attack
D. packet corruption
Correct Answer:
A
Chapter: 37
Q1164:
If congestion control is not done carefully, the network may ________.
A. swing wildly between congestion and under utilization
B. remain stable
C. increase speed
D. drop packets only
Correct Answer:
A
Chapter: 37
Q1165:
TCP uses the term ________ to refer to a message sent between machines.
A. packet
B. segment
C. frame
D. datagram
Correct Answer:
B
Chapter: 37
Q1166:
Network Address Translation (NAT) was motivated by the exhaustion of ________.
A. IP address space
B. MAC address space
C. DNS entries
D. IPv6 addresses
Correct Answer:
A
Chapter: 37
Q1167:
NAT allows multiple computers to share a ________ IP address.
A. private
B. unique
C. global
D. subscribed
Correct Answer:
C
Chapter: 37
Q1168:
NAT requires a device that performs ________ translation.
A. packet
B. address
C. port
D. data
Correct Answer:
B
Chapter: 37
Q1169:
Implementations of NAT can be found in ________.
A. stand-alone hardware devices
B. IP routers with NAT embedded
C. firewalls
D. both A and B
Correct Answer:
D
Chapter: 37
Q1170:
A site with more than one computer obtains a single valid ________ address.
A. private
B. global
C. loopback
D. multicast
Correct Answer:
B
Chapter: 37
Q1171:
In NAT, private IP addresses are assigned to computers inside the ________.
A. site
B. internet
C. router
D. firewall
Correct Answer:
A
Chapter: 37
Q1172:
NAT translates addresses in ________ datagrams.
A. IP
B. TCP
C. UDP
D. HTTP
Correct Answer:
A
Chapter: 37
Q1173:
When a computer in a private network communicates to the Internet, NAT translates its ________ address to a global IP address.
A. private
B. source
C. mac
D. destination
Correct Answer:
B
Chapter: 37
Q1174:
NAT translates the destination address of incoming datagrams to the ________ site address.
A. private
B. global
C. public
D. local
Correct Answer:
A
Chapter: 37
Q1175:
Example: A site uses private network 10.0.0.0/8 internally. The first computer is assigned ________.
A. 10.0.0.1
B. 10.0.0.10
C. 192.168.0.1
D. 172.16.0.1
Correct Answer:
A
Chapter: 37
Q1176:
If computer 10.0.0.1 sends to global IP 128.211.134.4, NAT translates the IP source address of the outgoing datagram to ________.
A. global IP
B. private IP
C. mac address
D. loopback address
Correct Answer:
A
Chapter: 37
Q1177:
NAT device stores ________ information in a table for translation purposes.
A. state
B. routing
C. error
D. traffic
Correct Answer:
A
Chapter: 37
Q1178:
The translation done by NAT is ________ to each end device.
A. transparent
B. visible
C. complex
D. encrypted
Correct Answer:
A
Chapter: 37
Q1179:
The NAT box connects a private network to the ________.
A. internet
B. router
C. switch
D. firewall
Correct Answer:
A
Chapter: 37
Q1180:
Congestion control tries to prevent the network from swinging between congestion and ________.
A. under utilization
B. over utilization
C. idle state
D. packet loss
Correct Answer:
A