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Question 1
Which fields are contained within an IEEE Ethernet frame? (Choose two.)
A. Source and destination MAC address
B. Source and destination network address
C. Source and destination MAC address and source and destination network address
D. FCS field
Correct answer: AD
Question 2
Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet? (Choose two.)
A. Half-duplex Ethernet operates in a shared collision domain.
B. Half-duplex Ethernet operates in a private collision domain.
C. Half-duplex Ethernet has higher effective throughput.
D. Half-duplex Ethernet has lower effective throughput.
E. Half-duplex Ethernet operates in a private broadcast domain.
Correct answer: AD
Question 3
You want 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
Correct answer: D
Question 4
Which of the following types of connections can use full duplex? (Choose three.)
A. Hub to hub
B. Switch to switch
C. Host to host
D. Switch to hub
E. Switch to host
Correct answer: BCE
Question 5
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
Correct answer: B
Question 6
How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Choose two.)
A. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
C. You can improve the CSMA/CD network by adding more hubs.
D. After a collision, the station that detected the collision has first priority to resend the lost data.
E. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priorityto transmit data.
F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data
Correct answer: BE
Question 7
What type of RJ45 UTP cable do you use to connect a PC’s COM port to a router or switch console port?
A. Straight-through
B. Crossover cable
C. Crossover with a CSU/DSU
D. Rolled
Correct answer: D
Question 8
You have the following binary number: 10110111. What are the decimal and hexadecimal equivalents?
A. 69/0x2102
B. 183/B7
C. 173/A6
D. 83/0xC5
Correct answer: B
Question 9
Which of the following contention mechanisms is used by Ethernet?
A. Token passing
B. CSMA/CD
C. CSMA/CA
D. Host polling
Correct answer: B
Question 10
In the operation of CSMA/CD, which host(s) have priority after the expiration of the backoff algorithm?
A. All hosts have equal priority.
B. The two hosts that caused the collision will have equal priority.
C. The host that sent the jam signal after the collision.
D. The host with the highest MAC address.
Correct answer: A
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