A network administrator has applied a new inbound route-map to a BGP neighbor to filter a set of prefixes. The administrator wants to ensure the new policy takes effect immediately without resetting the session. What is the best approach?

Use the clear ip bgp neighbor hard command

Use the clear ip bgp neighbor soft in command

Wait for the next keepalive timer to expire

A router receives two routes to the same destination from two different eBGP peers. Route A has a local preference of 150 and an AS path length of 3. Route B has a local preference of 200 and an AS path length of 2. Which route will be selected as the best path?

Route A because it has a lower local preference

Route A because it has a shorter AS path

Route B because it has a shorter AS path

Route B because it has a higher local preference

A multinational enterprise has two eBGP peers, ISP-A and ISP-B, each providing full internet routes. The network team wants to prefer ISP-A for all inbound traffic to the enterprise's prefix, but also wants to ensure that if ISP-A fails, traffic automatically switches to ISP-B. Currently, both ISPs receive the same prefix with identical AS path length. The team has decided to use AS path prepending on ISP-B. However, they also need to ensure that outbound traffic from the enterprise prefers ISP-A. Which set of configurations will achieve both goals?

Set weight 200 on ISP-B routes and prepend on ISP-A

Prepend AS number on ISP-A advertisement and set MED 100 on ISP-B routes

Prepend AS number on ISP-B advertisement and set local preference 200 on routes from ISP-A

Use communities to set local preference on ISP-B and prepend on ISP-A

A service provider is designing a BGP network with 1000 routers in a single AS. They want to avoid a full mesh of IBGP sessions and also want to minimize the impact of BGP session failures. They are considering using route reflectors and confederations. Which design provides the best scalability and fault isolation?

Use confederations only, without route reflectors

Use a single route reflector for all routers

Use multiple route reflectors in a hierarchical design with redundancy

Use a full mesh of IBGP sessions

A network administrator is troubleshooting BGP route selection. The router receives two routes to the same prefix from two different peers. Route A has a weight of 100, local preference of 150, and AS path length of 3. Route B has a weight of 200, local preference of 100, and AS path length of 2. Which route will be selected as the best path?

Route A because it has a lower weight

Route B because it has a shorter AS path

Route B because it has a higher weight

Route A because it has a higher local preference

CCIE Enterprise Infrastructure

Domain 1Objective 5

BGP CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 5)

Part of the Network Infrastructure domain, which accounts for 30% of the CCIE-ENTERPRISE-INFRASTRUCTURE exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~15–24 in this domain), expect 3–4 from this objective — we provide 35 practice questions to prepare you well beyond it. (estimate)

35questions here

7free pages

6concepts

30%of the exam

Questions 21–25

21application · medium
A network administrator has applied a new inbound route-map to a BGP neighbor to filter a set of prefixes. The administrator wants to ensure the new policy takes effect immediately without resetting the session. What is the best approach?
Select an answer first
22application · medium
A router receives two routes to the same destination from two different eBGP peers. Route A has a local preference of 150 and an AS path length of 3. Route B has a local preference of 200 and an AS path length of 2. Which route will be selected as the best path?
Select an answer first
23expert · hard
A multinational enterprise has two eBGP peers, ISP-A and ISP-B, each providing full internet routes. The network team wants to prefer ISP-A for all inbound traffic to the enterprise's prefix, but also wants to ensure that if ISP-A fails, traffic automatically switches to ISP-B. Currently, both ISPs receive the same prefix with identical AS path length. The team has decided to use AS path prepending on ISP-B. However, they also need to ensure that outbound traffic from the enterprise prefers ISP-A. Which set of configurations will achieve both goals?
Select an answer first
24expert · hard
A service provider is designing a BGP network with 1000 routers in a single AS. They want to avoid a full mesh of IBGP sessions and also want to minimize the impact of BGP session failures. They are considering using route reflectors and confederations. Which design provides the best scalability and fault isolation?
Select an answer first
25expert · hard
A network administrator is troubleshooting BGP route selection. The router receives two routes to the same prefix from two different peers. Route A has a weight of 100, local preference of 150, and AS path length of 3. Route B has a weight of 200, local preference of 100, and AS path length of 2. Which route will be selected as the best path?
Select an answer first

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BGP CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 5)

Questions 21–25

A network administrator has applied a new inbound route-map to a BGP neighbor to filter a set of prefixes. The administrator wants to ensure the new policy takes effect immediately without resetting the session. What is the best approach?

A router receives two routes to the same destination from two different eBGP peers. Route A has a local preference of 150 and an AS path length of 3. Route B has a local preference of 200 and an AS path length of 2. Which route will be selected as the best path?

Keep studying — Network Infrastructure