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Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)
Suggested Answer: D
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34 comments · newest first
TH
Theresia
11 months ago
C is spot on, MPLS EXP bits are key for differentiation!
MY
Myong
11 months ago
Wait, can a PE device really change QoS markings? Sounds odd.
LO
Louis
11 months ago
A is totally false, no way that's true!
AL
Aleshia
11 months ago
I think D is also valid, but not sure about E.
SU
Sue
12 months ago
B and C are definitely true!
JU
Junita
12 months ago
I’m pretty sure that E is correct because PE devices can change QoS markings, but I can't recall if D is true or not.
YO
Yong
1 year ago
I practiced a similar question, and I think A is definitely false since PE devices should differentiate traffic. I’m torn between B and E for the true statements.
JA
Jamey
1 year ago
I remember studying that PE devices use MPLS EXP bits, so I feel confident about option C, but I’m a bit shaky on D.
IS
Isaiah
1 year ago
I think option B is definitely true because PE devices usually classify and mark traffic, but I'm not sure about C.
YU
Yuriko
1 year ago
I feel pretty confident about this. A PE device is all about providing differentiation and QoS for customer traffic, so B and C are the obvious choices here.
NI
Nidia
1 year ago
I'm a little confused by the wording of some of these options. I'll need to double-check my understanding of PE device functionality to make sure I select the right answers.
AD
Adaline
1 year ago
Okay, I've got this. A PE device is responsible for classifying and marking customer traffic, so B is definitely one of the true statements. And it uses MPLS EXP bits to differentiate between flows, so C is also correct.
AL
Alida
1 year ago
Hmm, I'm a bit unsure about this one. The options seem to cover a range of different device capabilities, so I'll need to think carefully about which ones truly apply to a PE device.
TU
Tu
1 year ago
This question seems pretty straightforward. I think the key is to focus on the core functions of a PE device in a QoS-enabled network.
UL
Ula
1 year ago
I don't know, this question seems a bit fishy to me. What's with all these jargon-y terms like 'macroflows' and 'EXP bits'? Are we sure the exam writers aren't just trying to confuse us? *chuckles* But I guess that's what they get paid for, right?
JO
Joanne
1 year ago
This question is a piece of cake! As long as you remember that the PE device is all about classification, marking, and passing macroflows, you've got this. Now, if only I could remember what a 'macroflow' is again...
AN
Angelica
1 year ago
I think a macroflow is a group of traffic flows with similar QoS requirements.
SU
Susana
1 year ago
E) A device that passes macroflows while optionally changing QoS markings.
TR
Truman
1 year ago
B) A device that classifies and marks customer traffic.
CH
Cherelle
1 year ago
Hmm, I'm not sure about D. Creating macroflows from multiple customer sites sounds more like something a router would do, not a PE device. But I could be wrong, let me double-check my notes.
CA
Cassandra
1 year ago
C is also true, as PE devices use MPLS EXP bits to differentiate traffic flows.
MA
Ma
1 year ago
Yes, a PE device is more about classifying and marking customer traffic, like option B.
YV
Yvonne
1 year ago
I think you're right, D doesn't seem to be a characteristic of a PE device.
MA
Margurite
2 years ago
I'm pretty sure C is also true. The PE device should use MPLS EXP bits to differentiate between traffic flows, right? I remember learning that in class.
KE
Keneth
1 year ago
I agree, C is true. The PE device does use MPLS EXP bits to differentiate between traffic flows.
RI
Rikki
1 year ago
Yes, you're correct. C is one of the true statements about the PE device in a QoS enabled network.
BA
Barney
2 years ago
I'm not sure about A, D, and E. Can someone explain why they are not true for a PE device?
VA
Vallie
2 years ago
I agree with you, Gertude. I also think C is true because a PE device uses MPLS EXP bits to differentiate traffic flows.
FR
Franklyn
2 years ago
B and E seem like the correct options. The PE device in a QoS-enabled network should classify and mark customer traffic, and it should also pass macroflows while optionally changing QoS markings.
JO
Jospeh
1 year ago
That makes sense, thanks for clarifying.
MA
Maynard
1 year ago
Yes, and it also passes macroflows while potentially changing QoS markings.
JA
Javier
1 year ago
So the PE device is responsible for classifying and marking traffic.
HU
Hui
1 year ago
I agree, B and E are the correct options.
GE
Gertude
2 years ago
I think B is true because a PE device does classify and mark customer traffic.