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Exam 200-301 topic 1 question 46 discussion

Actual exam question from Cisco's 200-301
Question #: 46
Topic #: 1
[All 200-301 Questions]

For what two purposes does the Ethernet protocol use physical addresses?

  • A. to uniquely identify devices at Layer 2
  • B. to allow communication with devices on a different network
  • C. to differentiate a Layer 2 frame from a Layer 3 packet
  • D. to establish a priority system to determine which device gets to transmit first
  • E. to allow communication between different devices on the same network
  • F. to allow detection of a remote device when its physical address is unknown
Show Suggested Answer Hide Answer
Suggested Answer: AE 🗳️
by Ali526 at Jan. 3, 2021, 3:28 p.m.

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Nhan
Highly Voted 4 years, 6 months ago
Physical address is MAC address
upvoted 20 times
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ZUMY
Highly Voted 4 years, 3 months ago
A & E are correct
upvoted 14 times
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nebacudnezzer
Most Recent 9 months ago
Selected Answer: AE
important to identify devices in layer 2, and for the purpose of communicating
upvoted 1 times
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virab4
2 years, 3 months ago
how shall i know what i need to choose 2 answers?
upvoted 1 times
moooosi
1 year, 11 months ago
It^s written in the question. Choose two
upvoted 2 times
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ViShawnn
2 years, 2 months ago
That's the fun part, you don't :)
upvoted 5 times
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daddydagoth
2 years, 5 months ago
Specify that we need to choose 2, thank you
upvoted 2 times
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jossyda
3 years, 2 months ago
Selected Answer: AE
Are correct
upvoted 3 times
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ian77ex
3 years, 5 months ago
A and E are correct but the question doesn't specify "Select two answers" A. to uniquely identify devices at Layer 2 - This is the most Accurate answer E. to allow communication between different devices on the same network - This is OK, but physical addresses is just the FIRST thing needed, not the ONLY thing needed to allow communication in the same broadcast network. So if the question does not specify "select two answers" I would go with A.
upvoted 5 times
Tunz
3 years, 2 months ago
The questions says for what two purpose So that's saying select two
upvoted 4 times
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youtri
4 years, 3 months ago
I think (F) is incorrect, because remote device means it belongs to other network, please correct me if someone knows thank you
upvoted 5 times
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ZayaB
4 years, 5 months ago
F is not correct. F states that when physical address (MAC address) is not known, it use broadcast address of all Fs. Correct answers are AE as MAC addr are used on L2 and used for communication within the network (LAN).
upvoted 4 times
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Ali526
4 years, 7 months ago
AF is also correct. In a way, this Q has 3 answers: AEF
upvoted 3 times
sinear
4 years, 6 months ago
Don't think so. F describes the ARP protocol.
upvoted 3 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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