Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 18
Q621:
ATM provides _______ service with a single infrastructure.
A. Voice only
B. Packet switching
C. Universal
D. TCP-based
Correct Answer:
C
Chapter: 18
Q622:
The virtual circuit in ATM is made using ________.
A. Hardware switches
B. Actual wires
C. Memory tables in switches
D. Optical fibers
Correct Answer:
C
Chapter: 18
Q623:
ATM’s cell structure contains a ______ octet data field and a ______ octet header.
A. 48, 5
B. 53, 10
C. 32, 21
D. 40, 8
Correct Answer:
A
Chapter: 18
Q624:
The term ______ is used when packet delays vary over time.
A. Jitter
B. Latency
C. Bandwidth
D. Overhead
Correct Answer:
A
Chapter: 18
Q625:
Each ATM cell is ________ in size.
A. variable
B. fixed
C. bursty
D. large
Correct Answer:
B
Chapter: 18
Q626:
ATM was developed to combine the benefits of ______.
A. Wi-Fi and Ethernet
B. LANs and WANs
C. TCP and UDP
D. Switches and Routers
Correct Answer:
B
Chapter: 18
Q627:
ATM uses connection identifiers to allow communication between ______.
A. telco providers
B. routers and modems
C. communicating parties
D. network layers
Correct Answer:
C
Chapter: 19
Q628:
What does an ATM switch use to forward a cell?
A. IP address
B. Port number
C. Forwarding table
D. Routing algorithm
Correct Answer:
C
Chapter: 19
Q629:
What is the function of VPI/VCI in an ATM network?
A. Encrypts the cell
B. Identifies the destination
C. Compresses data
D. Filters packets
Correct Answer:
B
Chapter: 19
Q630:
The process of changing the VPI/VCI at each switch in ATM is known as ________.
A. Label printing
B. Label rewriting
C. Label filtering
D. Label forwarding
Correct Answer:
B
Chapter: 19
Q631:
ATM is considered a ________ system because it modifies the label at each switch.
A. Static routing
B. Fixed route
C. Label switching
D. Manual routing
Correct Answer:
C
Chapter: 19
Q632:
Two computers using ATM may have ______ VPI/VCI values at each end.
A. Same
B. Different
C. Fixed
D. Random
Correct Answer:
B
Chapter: 19
Q633:
Permanent Virtual Circuits are ________ configured.
A. Dynamically
B. Statically
C. Manually
D. Automatically
Correct Answer:
B
Chapter: 19
Q634:
Which type of virtual circuit remains active as long as the customer pays for it?
A. Switched VC
B. Shared VC
C. Permanent VC
D. Dedicated path
Correct Answer:
C
Chapter: 19
Q635:
Provisioning involves determining a path and assigning ______ at each switch.
A. IP addresses
B. MAC addresses
C. VPI/VCI values
D. Connection IDs
Correct Answer:
C
Chapter: 19
Q636:
Which type of virtual circuit is dynamically created and released after use?
A. Permanent VC
B. Shared VC
C. Switched VC
D. Static VC
Correct Answer:
C
Chapter: 19
Q637:
Which component in ATM is responsible for modifying the VPI/VCI?
A. Router
B. Table
C. Forwarding table
D. Switching hub
Correct Answer:
C
Chapter: 19
Q638:
In ATM, signaling refers to ________.
A. Data transfer
B. Network communication
C. Audio streaming
D. Header rewriting
Correct Answer:
B
Chapter: 19
Q639:
Cells used for signaling in ATM use ________ VPI/VCI values.
A. Random
B. Encrypted
C. Reserved
D. Dynamic
Correct Answer:
C
Chapter: 19
Q640:
What happens if a switch cannot provide the resources required for QoS?
A. Connection proceeds
B. Error is ignored
C. Connection is retried
D. Connection request is rejected
Correct Answer:
D