Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 188
Q2861:
Fill in the blank: The evolution of Ethernet introduced _______ to increase speed and reduce collisions.
A. bridges
B. full-duplex and switched operation
C. routers
D. repeaters
Correct Answer:
B
Chapter: 188
Q2862:
Switched Ethernet uses _______ to connect individual devices.
A. hubs
B. coaxial cables
C. bridges
D. switches
Correct Answer:
D
Chapter: 188
Q2863:
Which technology was introduced to further enhance the performance of Switched Ethernet?
A. Repeaters
B. Full-Duplex Mode
C. Half-Duplex Mode
D. Multiplexers
Correct Answer:
B
Chapter: 188
Q2864:
In Full-Duplex Ethernet, which of the following is NOT required?
A. CSMA/CD
B. Full bandwidth
C. Twisted pair cables
D. Switch connection
Correct Answer:
A
Chapter: 188
Q2865:
The evolution of Ethernet with Full-Duplex mode allows communication:
A. in both directions simultaneously
B. in one direction only
C. in bursts only
D. using token passing
Correct Answer:
A
Chapter: 188
Q2866:
Fill in the blank: One key benefit of Full-Duplex Ethernet is the elimination of _______.
A. frame segmentation
B. error detection
C. collision domains
D. packet routing
Correct Answer:
C
Chapter: 189
Q2867:
What was the major improvement introduced by Fast Ethernet?
A. Higher transmission rate
B. Increased cable length
C. Smaller MAC address
D. More collision detection
Correct Answer:
A
Chapter: 189
Q2868:
The main reason to keep the MAC sublayer unchanged in Fast Ethernet was to ensure _______.
A. error correction
B. data compression
C. compatibility with Standard Ethernet
D. speed boost
Correct Answer:
C
Chapter: 189
Q2869:
Fill in the blank: Fast Ethernet upgraded the transmission rate from 10 Mbps to _______.
A. 50 Mbps
B. 100 Mbps
C. 150 Mbps
D. 1 Gbps
Correct Answer:
B
Chapter: 189
Q2870:
What remains the same between Standard Ethernet and Fast Ethernet?
A. Frame format only
B. Cable type only
C. MAC sublayer, frame format, and 48-bit address
D. None of the above
Correct Answer:
C
Chapter: 189
Q2871:
Which layer required changes in Fast Ethernet to support higher data rates?
A. Application Layer
B. Transport Layer
C. Data Link Layer
D. Physical Layer
Correct Answer:
D
Chapter: 189
Q2872:
To handle the 100 Mbps speed, the changes were implemented at the _______ of the OSI model.
A. Network Layer
B. Session Layer
C. Physical Layer
D. Data Link Layer
Correct Answer:
C
Chapter: 189
Q2873:
Fill in the blank: Fast Ethernet uses the same _______ as Standard Ethernet to maintain compatibility.
A. MAC address format
B. IP addressing protocol
C. network topology
D. access method
Correct Answer:
A
Chapter: 189
Q2874:
Which of the following was NOT a goal of Fast Ethernet?
A. Support for wireless devices
B. 100 Mbps data rate
C. Compatibility with Standard Ethernet
D. Same frame format
Correct Answer:
A
Chapter: 189
Q2875:
Which encoding method was introduced or modified in Fast Ethernet for physical layer adaptation?
A. Manchester encoding
B. Differential encoding
C. 4B/5B or MLT-3 encoding
D. Binary encoding
Correct Answer:
C
Chapter: 189
Q2876:
The implementation of Fast Ethernet required adjustments in:
A. Logical topology
B. Physical Layer design
C. Frame size
D. Subnet mask
Correct Answer:
B
Chapter: 189
Q2877:
What remained unchanged in Fast Ethernet to support backward compatibility?
A. Frame size only
B. Physical topology only
C. MAC sublayer, frame format, and addressing
D. Signal propagation speed
Correct Answer:
C
Chapter: 189
Q2878:
Fast Ethernet is also known as _______.
A. Ethernet Express
B. Standard Ethernet
C. 100Base Ethernet
D. Giga Ethernet
Correct Answer:
C
Chapter: 189
Q2879:
Which of the following is a valid implementation of Fast Ethernet?
A. 100Base-FX
B. 10Base-T
C. 1000Base-LX
D. 10GBase-SR
Correct Answer:
A
Chapter: 189
Q2880:
The "100" in 100Base-TX stands for _______.
A. number of users
B. speed in Mbps
C. frame length
D. address length
Correct Answer:
B