A BGP session between your router and a peer is flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 4 (Hold Timer Expired)'. You have verified that the hold timer is set to 90 seconds on both routers. What is the most likely cause of this issue?

The routing policy is rejecting routes from the peer.

The MTU on the interface is too low.

The peer is not sending keepalive messages within the hold timer interval.

The peer's AS number is misconfigured.

Your router is receiving a default route (0.0.0.0/0) from two upstream providers. You want to prefer the default route from Provider A, but you also want to keep the default route from Provider B as a backup. You have applied a policy to set local-preference 200 on Provider A's default route and local-preference 100 on Provider B's default route. The routes are installed in the routing table. What will happen if Provider A's session goes down?

The router will send a BGP notification to Provider B to request a higher local-preference.

The router will stop routing traffic until Provider A's session is restored.

The router will automatically use Provider B's default route as the backup.

The router will flush all routes from Provider B and re-learn them.

A BGP session between your router and a customer's router keeps flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 2 (Open Message Error), subcode 2 (Bad Peer AS)'. The customer insists their configuration is correct. What is the most likely cause of this issue?

The AS number configured in the customer's BGP group does not match the AS number you have configured for your router.

The BGP hold timer is set too low on your router.

The customer's router is not sending keepalive messages.

The IP address of the customer's router is not reachable.

You need to verify the exact BGP path attributes (such as AS path and local preference) for a specific route received from a BGP peer. Which operational command provides this information?

show route receive-protocol bgp 192.0.2.1

show route advertising-protocol bgp 192.0.2.1

Juniper NetworksCertified Specialist, Enterprise Routing and Switching (JNCIS-ENT)

Domain 7Objective 7

BGP Routing Policy Application and Troubleshooting Tools JN0-352 Practice Questions (Page 1)

Part of the BGP domain, which makes up ~13% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–1 from this objective — we provide 10 practice questions to prepare you well beyond it. (estimate)

10questions here

2free pages

4concepts

Questions 1–5

1application · medium
A BGP session between your router and a peer is flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 4 (Hold Timer Expired)'. You have verified that the hold timer is set to 90 seconds on both routers. What is the most likely cause of this issue?
Select an answer first
2application · medium
Your router is receiving a default route (0.0.0.0/0) from two upstream providers. You want to prefer the default route from Provider A, but you also want to keep the default route from Provider B as a backup. You have applied a policy to set local-preference 200 on Provider A's default route and local-preference 100 on Provider B's default route. The routes are installed in the routing table. What will happen if Provider A's session goes down?
Select an answer first
3application · medium
A BGP session between your router and a customer's router keeps flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 2 (Open Message Error), subcode 2 (Bad Peer AS)'. The customer insists their configuration is correct. What is the most likely cause of this issue?
Select an answer first
4foundation · easy
You need to verify the exact BGP path attributes (such as AS path and local preference) for a specific route received from a BGP peer. Which operational command provides this information?
Select an answer first
5foundation · easy
Which Junos routing policy action can be used to influence BGP path selection by modifying the local preference of a route?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to JN0-352

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Juniper Networks. “JN0-352” is a trademark of its owner, used for identification only.

BGP Routing Policy Application and Troubleshooting Tools JN0-352 Practice Questions (Page 1)

Questions 1–5

A BGP session between your router and a peer is flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 4 (Hold Timer Expired)'. You have verified that the hold timer is set to 90 seconds on both routers. What is the most likely cause of this issue?

A BGP session between your router and a customer's router keeps flapping. You check the logs and see the message 'BGP_NOTIFICATION sent: code 2 (Open Message Error), subcode 2 (Bad Peer AS)'. The customer insists their configuration is correct. What is the most likely cause of this issue?

You need to verify the exact BGP path attributes (such as AS path and local preference) for a specific route received from a BGP peer. Which operational command provides this information?

Which Junos routing policy action can be used to influence BGP path selection by modifying the local preference of a route?

Keep studying — BGP