Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 217
Q3441:
What is the main purpose of a VLAN?
A. Reduce physical cabling
B. Combine IP addresses
C. Create redundant topologies
D. Physically connect remote hosts
Correct Answer:
A
Chapter: 217
Q3442:
Fill in the blank: A VLAN allows a ______ connection between stations on different LANs.
A. hardware
B. logical
C. physical
D. satellite
Correct Answer:
B
Chapter: 217
Q3443:
Which device can connect three physical LANs and use VLAN software?
A. Hub
B. Router
C. Switch
D. Repeater
Correct Answer:
C
Chapter: 217
Q3444:
What does a VLAN provide among geographically separate stations?
A. Wireless link
B. Virtual connection
C. Physical circuit
D. External routing
Correct Answer:
B
Chapter: 217
Q3445:
How does a router differ from a hub or switch?
A. It only works at the physical layer
B. It uses broadcast only
C. It checks both IP and MAC addresses
D. It connects only identical networks
Correct Answer:
C
Chapter: 217
Q3446:
What does a VLAN eliminate the need for?
A. Routers
B. Cabling
C. Switches
D. Repeaters
Correct Answer:
B
Chapter: 217
Q3447:
What criteria is used to determine VLAN membership?
A. IP subnet
B. MAC address
C. Geographic location
D. VPN rules
Correct Answer:
C
Chapter: 217
Q3448:
Fill in the blank: Routers act on packets only if the ______ matches the receiving interface's address.
A. MAC header
B. IP checksum
C. Link-layer destination
D. address type
Correct Answer:
C
Chapter: 218
Q3449:
Which of the following characteristics can be used to group stations in a VLAN?
A. MAC address
B. IP address
C. Port number
D. All of the above
Correct Answer:
D
Chapter: 218
Q3450:
Fill in the blank: VLAN stations can be grouped using ______ characteristics.
A. interface numbers only
B. port numbers only
C. only MAC addresses
D. various combinations including MAC, IP, and port numbers
Correct Answer:
D
Chapter: 218
Q3451:
How can stations be configured into different VLANs?
A. Only manually
B. Only automatically
C. Manually, semi-automatically, or automatically
D. Through cabling
Correct Answer:
C
Chapter: 218
Q3452:
Which of the following is NOT a method to configure VLAN membership?
A. Manual
B. Automatic
C. Semi-automatic
D. Cable tagging
Correct Answer:
D
Chapter: 218
Q3453:
In VLAN configuration, what method is used to assign stations manually?
A. Auto detection
B. Port-based configuration
C. Manual entry
D. ARP scanning
Correct Answer:
C
Chapter: 218
Q3454:
Fill in the blank: In a multi-switched VLAN network, each switch must know the ______ of other switches.
A. hostname
B. IP address
C. membership status
D. memory size
Correct Answer:
C
Chapter: 218
Q3455:
Which method is NOT used for communication between VLAN switches?
A. Table maintenance
B. Frame tagging
C. Bridge spanning
D. Circuit hopping
Correct Answer:
C
Chapter: 218
Q3456:
Which of these are used to manage communication between VLAN switches?
A. Frame tagging
B. Spanning tree protocol
C. CSMA/CD
D. Port mirroring
Correct Answer:
A
Chapter: 218
Q3457:
Fill in the blank: One of the methods for inter-switch VLAN communication is ______.
A. packet broadcasting
B. frame tagging
C. link-layer flooding
D. burst transmission
Correct Answer:
B
Chapter: 218
Q3458:
What is an advantage of using VLANs?
A. More cabling needed
B. Increased cost
C. Cost and time reduction
D. Lower network speed
Correct Answer:
C
Chapter: 218
Q3459:
VLANs are beneficial for security because they ______.
A. physically separate devices
B. block external internet
C. allow better encryption
D. restrict broadcast domains
Correct Answer:
D
Chapter: 218
Q3460:
Fill in the blank: VLANs reduce cost and time by ______.
A. eliminating hardware
B. separating data and voice
C. avoiding physical changes to wiring
D. using hubs instead of switches
Correct Answer:
C