Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 21
Q721:
The system that enables stream and message interfaces is a ______ network.
A. Connection-oriented
B. Connectionless
C. Public
D. Switched
Correct Answer:
A
Chapter: 21
Q722:
The connection identifier in ATM includes ______ and VCI.
A. VPN
B. VLAN
C. VPI
D. MAC
Correct Answer:
C
Chapter: 21
Q723:
Which of the following is an advantage of connection-oriented service?
A. Higher latency
B. Less reliable
C. Immediate problem detection
D. Lower cost
Correct Answer:
C
Chapter: 21
Q724:
The primary benefit of connectionless service is ______.
A. Better error detection
B. Lower overhead
C. Faster connection
D. Higher security
Correct Answer:
B
Chapter: 21
Q725:
ARPANET uses ______ service externally.
A. Connection-oriented
B. Connectionless
C. Both
D. Message-based
Correct Answer:
B
Chapter: 21
Q726:
Each data item in a connectionless service is delivered ______.
A. With handshake
B. As a session
C. Individually
D. Only if reliable
Correct Answer:
C
Chapter: 21
Q727:
Permanent virtual circuits were originally ______.
A. Configured via software
B. Configured via firewall
C. Hardwired
D. Temporarily used
Correct Answer:
C
Chapter: 21
Q728:
VPN systems use encryption to guarantee ______.
A. Integrity
B. Tunnel access
C. Absolute privacy
D. Priority queues
Correct Answer:
C
Chapter: 21
Q729:
To allow full duplex in connection-oriented systems, you need ______.
A. One channel
B. Two connections
C. Three routers
D. One firewall
Correct Answer:
B
Chapter: 22
Q730:
Which of the following is a key metric for measuring network performance?
A. Latency
B. Throughput
C. Delay
D. Bandwidth
Correct Answer:
B
Chapter: 22
Q731:
What does "delay" in networking refer to?
A. Time taken to connect
B. Time to process data
C. Time for data to travel
D. Speed of transmission
Correct Answer:
C
Chapter: 22
Q732:
Which unit is commonly used to measure delay?
A. Kilobytes
B. Milliseconds
C. Megabytes
D. Megabits
Correct Answer:
B
Chapter: 22
Q733:
________ is defined as the time required to get control of the medium.
A. Propagation delay
B. Switching delay
C. Access delay
D. Queuing delay
Correct Answer:
C
Chapter: 22
Q734:
Switching delay refers to the time taken by
A. Host to process data
B. Medium to respond
C. Network component to forward data
D. User input
Correct Answer:
D
Chapter: 22
Q735:
Propagation delay is the time required for data to
A. Be processed
B. Be stored
C. Travel across the medium
D. Be encrypted
Correct Answer:
C
Chapter: 22
Q736:
Queuing delay occurs in which network component?
A. Modem
B. Hub
C. Router
D. Packet Switch
Correct Answer:
D
Chapter: 22
Q737:
The effective throughput is usually _______ than the hardware bandwidth.
A. Higher
B. Equal
C. Lower
D. Same
Correct Answer:
C
Chapter: 22
Q738:
Throughput refers to the
A. Delay in the network
B. Rate at which data is received
C. Rate at which data is sent
D. Amount of queued data
Correct Answer:
C
Chapter: 22
Q739:
The term "speed" in networking is often used as a synonym for
A. Latency
B. Propagation
C. Delay
D. Throughput
Correct Answer:
D
Chapter: 22
Q740:
If a network operates close to 100% of its throughput capacity, it will experience
A. Minimum delay
B. No delay
C. Severe delay
D. Fast switching
Correct Answer:
C