You have a BGP route map applied to a neighbor that filters routes based on community values. You need to add a new community to the permit list. You want to apply the change without disrupting the BGP session. The neighbor supports route refresh. What is the best approach?

Modify the route map and use 'clear ip bgp * in'

Modify the route map and use 'clear ip bgp * soft in'

Modify the route map and use 'clear ip bgp * soft out'

Modify the route map and use 'clear ip bgp *'

You are designing a BGP network with 20 routers in a single AS. You want to avoid a full mesh of iBGP sessions and improve scalability. You decide to use route reflectors. You have two route reflectors for redundancy. What is a potential issue with this design?

Route reflectors can cause suboptimal routing if not placed correctly.

Route reflectors require a full mesh of sessions between them.

Route reflectors do not support iBGP sessions.

Route reflectors can cause routing loops if not configured with cluster IDs.

You have two eBGP peers, ISP-A and ISP-B, both advertising the same prefix. You want to prefer ISP-A for inbound traffic. You have already set a higher local preference on routes from ISP-A. You also want to ensure that ISP-A is preferred even if ISP-A's AS path is longer. What should you do?

Prepend your AS number to routes advertised to ISP-B.

Use a route map to set the next-hop to a loopback on ISP-A.

Set a lower local preference on routes from ISP-A.

Set a higher MED on routes advertised to ISP-B.

You are configuring an eBGP session between two routers that are not directly connected. You want to use loopback interfaces for stability. You have configured ebgp-multihop with a TTL of 2. What else must you configure to ensure the session works?

A route map to set the next-hop.

A static route to the peer's loopback address.

The update-source command on the peer.

CCIE Enterprise Infrastructure

Domain 1Objective 5

BGP CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 2)

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 6–10

6expert · hard
You have a BGP route map applied to a neighbor that filters routes based on community values. You need to add a new community to the permit list. You want to apply the change without disrupting the BGP session. The neighbor supports route refresh. What is the best approach?
Select an answer first
7expert · hard
You are designing a BGP network with 20 routers in a single AS. You want to avoid a full mesh of iBGP sessions and improve scalability. You decide to use route reflectors. You have two route reflectors for redundancy. What is a potential issue with this design?
Select an answer first
8expert · hard
You have two eBGP peers, ISP-A and ISP-B, both advertising the same prefix. You want to prefer ISP-A for inbound traffic. You have already set a higher local preference on routes from ISP-A. You also want to ensure that ISP-A is preferred even if ISP-A's AS path is longer. What should you do?
Select an answer first
9expert · hard
You have a BGP network with many peers. You need to apply a new inbound policy to all peers. You want to minimize disruption and avoid clearing sessions. What is the best approach?
Select an answer first
10expert · hard
You are configuring an eBGP session between two routers that are not directly connected. You want to use loopback interfaces for stability. You have configured ebgp-multihop with a TTL of 2. What else must you configure to ensure the session works?
Select an answer first

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