Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 37
Q1181:
TCP segment format includes both data and ________.
A. acknowledgement
B. header
C. options
D. packet size
Correct Answer:
B
Chapter: 37
Q1182:
The site’s valid IP address in the example is ________.
A. 128.210.24.6
B. 10.0.0.1
C. 192.168.1.1
D. 172.16.0.1
Correct Answer:
A
Chapter: 37
Q1183:
NAT translates the ________ address of outgoing datagrams to the global IP address.
A. source
B. destination
C. mac
D. packet
Correct Answer:
A
Chapter: 37
Q1184:
The private address range 10.0.0.0/8 is used for ________.
A. private networks
B. public networks
C. global routing
D. subnetting
Correct Answer:
A
Chapter: 37
Q1185:
NAT helps to conserve ________ by allowing IP address sharing.
A. address space
B. bandwidth
C. packet size
D. mac addresses
Correct Answer:
A
Chapter: 37
Q1186:
Congestion control in TCP works by adjusting ________.
A. window size
B. packet size
C. segment size
D. acknowledgement timeout
Correct Answer:
A
Chapter: 37
Q1187:
The NAT box changes the IP source field of outgoing datagrams to the ________.
A. global IP
B. private IP
C. loopback IP
D. destination IP
Correct Answer:
A
Chapter: 38
Q1188:
The basic NAT changes only the ________.
A. IP addresses
B. port numbers
C. both IP addresses and port numbers
D. DNS names
Correct Answer:
A
Chapter: 38
Q1189:
Network Address and Port Translation (NAPT) changes both IP addresses and ________.
A. port numbers
B. DNS names
C. MAC addresses
D. TTL values
Correct Answer:
A
Chapter: 38
Q1190:
NAPT allows multiple computers to communicate with a ________ destination.
A. single
B. multiple
C. unique
D. none of the above
Correct Answer:
A
Chapter: 38
Q1191:
In NAPT, protocol port numbers are ________ to avoid conflicts.
A. translated
B. ignored
C. blocked
D. duplicated
Correct Answer:
A
Chapter: 38
Q1192:
Which NAT variant is connected to a Domain Name and used in sites running servers?
A. Basic NAT
B. NAPT
C. Twice NAT
D. CAT
Correct Answer:
C
Chapter: 38
Q1193:
TCP Splicing is a technique used with ________.
A. NAPT
B. Basic NAT
C. Twice NAT
D. CAT
Correct Answer:
A
Chapter: 38
Q1194:
TCP Splicing performs ________ rewriting to avoid overhead.
A. segment
B. header
C. address
D. payload
Correct Answer:
C
Chapter: 38
Q1195:
Twice NAT fails if an application uses ________ instead of Domain Name.
A. IP addresses
B. port numbers
C. protocol numbers
D. MAC addresses
Correct Answer:
A
Chapter: 38
Q1196:
Cable TV providers offering Internet services through cable modems use ________.
A. CAT
B. NAPT
C. Twice NAT
D. Basic NAT
Correct Answer:
A
Chapter: 38
Q1197:
CAT includes NAPT plus additional functionality that allows the operator to ________.
A. inspect values and control network access
B. assign IP addresses
C. change DNS entries
D. block ports
Correct Answer:
A
Chapter: 38
Q1198:
NAT is useful at home because it allows multiple computers to share a single ________.
A. IP address
B. mac address
C. subnet mask
D. protocol
Correct Answer:
A
Chapter: 38
Q1199:
NAT software on a PC can allow the PC to connect to the Internet and act as a ________ device.
A. router
B. switch
C. NAT
D. firewall
Correct Answer:
C
Chapter: 38
Q1200:
NAPT is the most ________ form of NAT.
A. Popular
B. obsolete
C. complex
D. simple
Correct Answer:
A