6.
How to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
A. Thicknet coax
B. Thinnet coax
C. Category 5 UTP cable
D. Fiber-optic cable
Answer & Explanation
Answer: Option D
Explanation:
Fiber-optic cable provides a more secure, long-distance cable that is not susceptible to EMI interference at high speeds.
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17.
Segmentation of a data stream happens at which layer of the OSI model?
A. Physical
B. Data Link
C. Network
D. Transport
Answer & Explanation
Answer: Option D
Explanation:
The Transport layer receives large data streams from the upper layers and breaks these up into smaller pieces called segments.
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18.
When data is encapsulated, which is the correct order?
A. Data, frame, packet, segment, bit
B. Segment, data, packet, frame, bit
C. Data, segment, packet, frame, bit
D. Data, segment, frame, packet, bit
Answer & Explanation
Answer: Option C
Explanation:
The encapsulation method is data, segment, packet, frame, bit.
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19.
Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain.
Half-duplex Ethernet operates in a private collision domain.
Half-duplex Ethernet has higher effective throughput.
Half-duplex Ethernet has lower effective throughput.
A. 2 only
B. 1,2 and 3
C. 1 and 4
D. 4 only
Answer & Explanation
Answer: Option C
Explanation:
Unlike full duplex, half-duplex Ethernet operates in a shared collision domain, and it has a lower effective throughput than full duplex.
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20.
What type of RJ45 UTP cable is used between switches?
A. Straight-through
B. Crossover cable
C. Crossover with a CSU/DSU
D. Crossover with a router in between the two switches
Answer & Explanation
Answer: Option B
Explanation:
To connect two switches together, you would use a RJ45 UTP crossover cable.