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A service has a null encapsulated SAP and a vc-type vlan' SDP. What happens when the SAP receives an untagged Ethernet frame?
Suggested Answer: A
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33 comments · newest first
TA
Talia
11 months ago
Nah, it just gets forwarded without a tag, right?
MA
Margurite
11 months ago
I think the service ID gets added as the provider VLAN tag.
IZ
Izetta
11 months ago
Wait, are you sure about that?
LE
Leota
11 months ago
Totally agree, that's how it works!
LA
Lashawna
12 months ago
The frame is dropped.
DO
Dominic
12 months ago
I’m leaning towards the idea that the frame is forwarded without any tag, but I could be mixing it up with another topic.
OL
Ollie
1 year ago
This question feels familiar; I think we practiced something similar where a VLAN tag of 0 was involved.
SA
Sarah
1 year ago
I remember something about how the service ID gets added as a tag, but I'm not entirely sure if that's the case here.
ST
Stefania
1 year ago
I think when the SAP receives an untagged frame, it might just drop it since there's no VLAN tag to process.
LO
Lou
1 year ago
I've seen questions like this before. If the SAP is null encapsulated, then the frame should be forwarded without a provider VLAN tag, which matches option D. I'm feeling pretty good about that being the right choice.
NO
Norah
1 year ago
Okay, let's break this down step-by-step. A null encapsulated SAP means the frame shouldn't have a VLAN tag, and a vc-type VLAN SDP implies the service is using a VLAN. So my guess is that option D is the correct answer.
AD
Adell
1 year ago
Hmm, I'm a bit confused by the terminology here. I'll need to review my notes on SAPs and VLANs before I can confidently answer this.
RI
Rikki
1 year ago
This looks like a tricky networking question. I'll need to think through the details of the SAP and VLAN configuration to figure out the right answer.
JE
Jestine
1 year ago
Wait, is this a trick question? What if the untagged frame is actually a carrier pigeon carrying a secret message? I better choose option E: release the homing pigeons!
BR
Brice
1 year ago
C) A VLAN tag of 0 is added as the provider VLAN tag.
TH
Theron
1 year ago
B) The service ID is added as the provider VLAN tag.
KR
Kris
1 year ago
A) The frame is dropped.
ME
Merissa
1 year ago
I'm going to have to go with A and drop the frame. It's the only answer that ensures the network stays secure and the integrity of the service is maintained.
NG
Nguyet
1 year ago
User 3: I'm not sure, but I think adding a VLAN tag of 0 might be the solution.
RE
Reena
1 year ago
User 2: I think adding the service ID as the provider VLAN tag could also work.
AM
Amber
1 year ago
User 1: I agree, dropping the frame is the safest option.
BE
Bernardo
1 year ago
I'm just going to go with C and hope for the best. A VLAN tag of 0 seems like a weird choice, but it's not the worst option on the list.
SO
Socorro
2 years ago
I agree with Chaya, adding the service ID makes sense.
MA
Mary
2 years ago
Hmm, I'm torn between B and D. But I think D might be the better option - forwarding the frame with no provider VLAN tag seems like the most straightforward approach.
SH
Sherill
1 year ago
User 2: I disagree, I believe D is the right choice - forwarding the frame with no provider VLAN tag.
NO
Noelia
1 year ago
User 1: I think B is the correct answer - adding the service ID as the provider VLAN tag.
AR
Aron
2 years ago
I'm pretty sure the correct answer is B. The service ID should be added as the provider VLAN tag. It's the only logical choice that makes sense to me.
TR
Truman
1 year ago
No problem, happy to help!
CR
Craig
1 year ago
Oh, I see. Thanks for clarifying that.
AL
Almeta
1 year ago
Actually, the correct answer is C. A VLAN tag of 0 is added as the provider VLAN tag.
WA
Walton
1 year ago
I think you're right, the service ID is added as the provider VLAN tag.
CH
Chaya
2 years ago
I believe the service ID is added as the provider VLAN tag.
BO
Bok
2 years ago
I think the frame is dropped.