Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 12
Q421:
Physical topology depends on ______.
A. Network technology
B. Protocol software
C. Wiring scheme
D. Frame format
Correct Answer:
C
Chapter: 12
Q422:
100Base-T technology supports which of the following?
A. Only 10 Mbps speed
B. Only 100 Mbps speed
C. Auto negotiation between 10/100 Mbps
D. Only 1 Gbps speed
Correct Answer:
C
Chapter: 12
Q423:
Auto negotiation in Ethernet allows what?
A. Automatic IP configuration
B. Speed negotiation at connection
C. Automatic routing
D. Packet filtering
Correct Answer:
B
Chapter: 12
Q424:
Which factor is NOT a consideration for choosing cable category?
A. Intended data rate
B. Distance between devices
C. Amount of electromagnetic noise
D. Color of cable
Correct Answer:
D
Chapter: 12
Q425:
Local talk uses which topology physically?
A. Bus
B. Star
C. Ring
D. Mesh
Correct Answer:
B
Chapter: 12
Q426:
IBM’s token ring uses which physical topology?
A. Bus
B. Ring
C. Star
D. Mesh
Correct Answer:
C
Chapter: 12
Q427:
In hub wiring, a cable cut affects:
A. The entire network
B. Only one computer
C. The hub
D. All connected hubs
Correct Answer:
B
Chapter: 12
Q428:
Twisted pair Ethernet wiring is also called ______.
A. Thicknet
B. Thin coax
C. 10Base-T
D. Thick coax
Correct Answer:
C
Chapter: 12
Q429:
Twisted pair Ethernet replaced thick coax with ______.
A. Hubs
B. Repeaters
C. Switches
D. Routers
Correct Answer:
A
Chapter: 12
Q430:
The process of devices negotiating a speed in 100Base-T is called:
A. Auto routing
B. Auto configuration
C. Auto negotiation
D. Auto switching
Correct Answer:
C
Chapter: 12
Q431:
The 10Base-T Ethernet operates at ______ Mbps.
A. 1
B. 10
C. 100
D. 1000
Correct Answer:
B
Chapter: 12
Q432:
The length of wiring varies in the schemes of Thick Ethernet, Thin Ethernet, and ______ Ethernet.
A. Twisted pair
B. Fiber optic
C. Coaxial
D. Wireless
Correct Answer:
A
Chapter: 13
Q433:
What is the primary limitation of LAN cable length?
A. Signal distortion
B. Weak electrical signal
C. Long cable price
D. Low bandwidth
Correct Answer:
B
Chapter: 13
Q434:
What happens when the length of a LAN cable increases beyond the limit?
A. Increased speed
B. Improved bandwidth
C. Weakening of signals
D. More users can connect
Correct Answer:
C
Chapter: 13
Q435:
Which hardware is used to extend a LAN beyond a building using light pulses?
A. Router
B. Hub
C. Fiber-modem
D. Switch
Correct Answer:
C
Chapter: 13
Q436:
The purpose of using a fiber-modem is to ________.
A. convert light to sound
B. amplify electric signals
C. convert digital data to light and vice versa
D. connect two mobile devices
Correct Answer:
C
Chapter: 13
Q437:
LAN extension over optical fiber is preferred because ________.
A. it looks better
B. it is wireless
C. it has low delay and high bandwidth
D. it is cheaper than copper wiring
Correct Answer:
C
Chapter: 13
Q438:
Which access mechanism is affected by long delays in LANs?
A. HTTP
B. SMTP
C. CSMA/CD
D. FTP
Correct Answer:
C
Chapter: 13
Q439:
Repeaters work best with which type of medium?
A. Fiber optic
B. Copper wire
C. Wireless
D. Bluetooth
Correct Answer:
B
Chapter: 13
Q440:
A repeater ________ the electrical signal.
A. blocks
B. amplifies
C. destroys
D. bypasses
Correct Answer:
B