Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 38
Q1201:
In NAPT, the translation table records ________ as well as IP addresses.
A. protocol port numbers
B. MAC addresses
C. DNS names
D. TTL values
Correct Answer:
A
Chapter: 38
Q1202:
NAPT translation tables help avoid ________ by reassigning port numbers.
A. conflicts
B. delays
C. packet loss
D. routing errors
Correct Answer:
A
Chapter: 38
Q1203:
In Twice NAT, if an application uses IP addresses instead of ________, it may fail.
A. Domain Names
B. port numbers
C. protocol numbers
D. mac addresses
Correct Answer:
A
Chapter: 38
Q1204:
NAT at home typically uses ________ hardware device to implement NAT.
A. dedicated
B. router
C. firewall
D. switch
Correct Answer:
A
Chapter: 38
Q1205:
NAPT is also known as ________.
A. Port Address Translation
B. Domain Name Translation
C. Basic NAT
D. Twice NAT
Correct Answer:
A
Chapter: 38
Q1206:
NAPT allows multiple computers to share one ________.
A. public IP address
B. private IP address
C. subnet mask
D. port number
Correct Answer:
A
Chapter: 38
Q1207:
Twice NAT is used mainly when a site runs ________.
A. servers
B. clients
C. routers
D. switches
Correct Answer:
A
Chapter: 38
Q1208:
The additional functionality of CAT allows cable operators to ________.
A. inspect values and control access
B. assign IP addresses
C. change IP addresses
D. encrypt data
Correct Answer:
A
Chapter: 38
Q1209:
NAPT handles translation of both IP addresses and ________.
A. port numbers
B. mac addresses
C. TTL values
D. DNS names
Correct Answer:
B
Chapter: 38
Q1210:
In NAPT, port numbers are reassigned to avoid ________.
A. conflicts
B. delays
C. packet loss
D. packet duplication
Correct Answer:
A
Chapter: 38
Q1211:
NAPT is used with which protocols?
A. TCP or UDP
B. IP only
C. HTTP only
D. FTP only
Correct Answer:
A
Chapter: 38
Q1212:
NAPT allows communication for multiple users on a single ________.
A. computer
B. router
C. switch
D. firewall
Correct Answer:
A
Chapter: 38
Q1213:
Twice NAT connects the NAT box to the ________.
A. Domain Name
B. IP Address
C. MAC Address
D. Subnet Mask
Correct Answer:
A
Chapter: 38
Q1214:
NAPT is an enhancement over basic NAT by including ________ translation.
A. port number
B. IP address
C. DNS name
D. MAC address
Correct Answer:
A
Chapter: 38
Q1215:
NAT at home uses ________ connectivity like Cable Modem or DSL.
A. broadband
B. satellite
C. wireless
D. leased line
Correct Answer:
A
Chapter: 39
Q1216:
Forwarding refers to ________.
A. datagram transfer
B. propagation of routing information
C. configuration of IP addresses
D. communication protocols
Correct Answer:
A
Chapter: 39
Q1217:
Forwarding is performed by ________.
A. host or router
B. only host
C. only router
D. switch
Correct Answer:
A
Chapter: 39
Q1218:
Forwarding uses the ________ to send datagrams.
A. routing table
B. ARP table
C. IP header
D. MAC address table
Correct Answer:
A
Chapter: 39
Q1219:
Routing refers to ________.
A. propagation of routing information
B. datagram transfer
C. packet switching
D. error checking
Correct Answer:
B
Chapter: 39
Q1220:
Routing is performed by ________.
A. routers
B. hosts
C. switches
D. all network devices
Correct Answer:
A