In an autonomous system with multiple IBGP speakers, a route learned from an IBGP neighbor is advertised to another IBGP neighbor. What is the result of this action under the IBGP split-horizon rule?

The route is advertised with a new AS number prepended to the AS path.

The route is advertised normally, and the receiving router may forward it to its EBGP neighbors.

The route is advertised only if the next hop is reachable, otherwise it is dropped.

The route is not advertised to the other IBGP neighbor, preventing routing loops within the AS.

What is the default TTL value for EBGP packets, and how does multihop change it?

Default TTL is 1; multihop increases it to allow the session to traverse multiple hops.

Default TTL is 16; multihop increases it to 255.

Default TTL is 64; multihop decreases it to 1.

Default TTL is 255; multihop does not change the TTL.

Your AS has two routers, R1 and R2, with an IBGP session. R1 learns a route from an EBGP peer and advertises it to R2 via IBGP. What does R1 do with the NEXT_HOP attribute when advertising this route to R2?

It changes the NEXT_HOP to the physical interface address used for the IBGP session.

It changes the NEXT_HOP to its own loopback address.

It sets the NEXT_HOP to the loopback address of R2.

It leaves the NEXT_HOP unchanged from the EBGP route.

What is the primary purpose of a BGP confederation?

To provide a backup path for EBGP sessions

To filter BGP routes based on community attributes

To reduce the number of IBGP sessions required within an AS by subdividing it into sub-ASes

To increase the number of routes that can be advertised to EBGP peers

What is the primary purpose of a BGP route reflector?

To increase the number of routes that can be stored in the BGP table

To reduce the number of IBGP sessions required in an AS

To filter BGP routes based on AS path

To provide a backup path for EBGP sessions

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 4Objective 5

Internal and External BGP (IBGP and EBGP) Functionality and Interaction JN0-364 Practice Questions (Page 1)

Part of the Border Gateway Protocol (BGP) domain, which makes up ~10% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 11 practice questions to prepare you well beyond it. (estimate)

11questions here

3free pages

8concepts

Questions 1–5

1foundation · medium
In an autonomous system with multiple IBGP speakers, a route learned from an IBGP neighbor is advertised to another IBGP neighbor. What is the result of this action under the IBGP split-horizon rule?
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2foundation · easy
What is the default TTL value for EBGP packets, and how does multihop change it?
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3application · medium
Your AS has two routers, R1 and R2, with an IBGP session. R1 learns a route from an EBGP peer and advertises it to R2 via IBGP. What does R1 do with the NEXT_HOP attribute when advertising this route to R2?
Select an answer first
4foundation · easy
What is the primary purpose of a BGP confederation?
Select an answer first
5foundation · easy
What is the primary purpose of a BGP route reflector?
Select an answer first

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