Ericsson ECP-206 Exam - Topic 1 Question 21 Discussion

Actual exam question for Ericsson's ECP-206 exam

Question #: 21
Topic #: 1

[All ECP-206 Questions]

Regarding the BGP decision algorithm, which two statements are correct? (Choose two.)

AA higher local-preference attribute will be favored over a lower local-preference attribute.

BThe most important criteria is the administrative distance.

CA path cannot be considered if the next-hop is inaccessible.

DA lower local-preference attribute will be favored over a higher local-preference attribute.

Show Suggested Answer

Suggested Answer: C

In an Ethernet frame carrying a VLAN tag, the VLAN tag appears before the type field. A VLAN tag is a 4-byte field that is inserted into an Ethernet frame to indicate the VLAN membership and priority of the frame. The VLAN tag consists of two subfields: the tag protocol identifier (TPID) and the tag control information (TCI). The TPID subfield is a 16-bit field that identifies the frame as an IEEE 802.1Q-tagged frame, with a value of 0x8100. The TCI subfield is a 16-bit field that contains the priority code point (PCP), the drop eligible indicator (DEI), and the VLAN identifier (VID). The VLAN tag appears between the source MAC address and the type fields of the original frame, shifting the type field by four bytes. The type field indicates the type of the payload, such as IP or ARP .

by Valene at Jun 30, 2024, 08:08 AM

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Ruthann

4 months ago

Pretty sure you can't use a path if the next-hop is down.

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Elly

5 months ago

Isn't it weird that lower local-preference is favored in some cases?

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Tonja

5 months ago

Can't believe people still doubt the next-hop rule!

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Gail

5 months ago

I think the admin distance is more important, though.

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Juan

5 months ago

A higher local-preference is definitely favored!

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Dominga

6 months ago

A is definitely correct, but I’m torn between C and B. I feel like I’ve seen questions where administrative distance was mentioned, but I can’t recall the specifics.

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Lettie

6 months ago

I’m a bit confused about B. I thought administrative distance was important, but isn’t it more about the local preference in BGP?

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Mariko

6 months ago

I think C is correct too because if the next-hop isn't reachable, the path can't be used. I practiced a similar question last week.

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Isaiah

6 months ago

I remember that local preference is definitely a key factor, so A seems right. But I'm not sure about the second one.

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Mirta

6 months ago

Hmm, I'm not sure about the local-preference part. I think a lower local-preference might actually be favored, but I'll double-check that before answering.

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Tiffiny

6 months ago

I'm pretty confident about this one. A higher local-preference is definitely preferred, and a path with an inaccessible next-hop won't be considered. I'll mark those two options.

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Solange

6 months ago

Wait, isn't the most important criteria the administrative distance? I'm a bit confused on how that fits into the BGP decision process.

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Merilyn

6 months ago

Okay, I think I've got this. A higher local-preference will be favored, and a path can't be considered if the next-hop is inaccessible. Those seem like the two correct statements.

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Vincenza

6 months ago

Hmm, this looks like a tricky one. I'll need to carefully review the BGP decision algorithm steps to make sure I understand the correct criteria.

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Tammara

6 months ago

I'm feeling pretty confident about this one. The output will depend on whether the `display()` method in the child class overrides the one in the parent class, and how the parameters are passed. I'll analyze the code step-by-step.

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Naomi

6 months ago

Okay, I think I've got it. Option B about creating a multi-media briefing to update all staff on major changes seems like the best example of using timing and frequency to communicate effectively. Repeating information at the right times and frequencies is key.

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