A service provider is evaluating GRES for a router that carries critical transit traffic. The provider's main concern is that an RE failure should not disrupt traffic. The provider does not require protocol state to be preserved. What is the primary benefit of GRES in this scenario?

GRES preserves BGP and OSPF state, so routing protocols do not restart.

GRES automatically restarts failed routing protocols.

GRES preserves the forwarding table, so transit traffic continues without interruption during an RE switchover.

GRES eliminates the need for redundant Routing Engines.

A network administrator is configuring GRES on a Juniper router. The administrator has enabled GRES at the [edit chassis redundancy] hierarchy and committed the configuration. The administrator now wants to verify that GRES is operational. Which command should the administrator use?

show configuration | display set

A network engineer is planning to enable GRES on a router with two Routing Engines. The engineer checks the hardware and finds that the two REs have different amounts of memory. What is the impact of this hardware mismatch on GRES?

GRES will function but only for IPv4 traffic.

GRES will not function because both REs must have identical hardware.

GRES will function normally because hardware differences do not affect GRES.

GRES will function but with reduced performance.

A service provider is upgrading the software on a dual-RE MX960 router that carries live BGP and OSPF traffic. The network engineer wants to perform the upgrade with minimal impact to transit traffic, but the IGP and BGP sessions do not need to be preserved across the upgrade. Which feature should the engineer enable to ensure that forwarding continues uninterrupted during the RE switchover that occurs as part of the upgrade?

Unified In-Service Software Upgrade (ISSU)

During a GRES switchover, what happens to the forwarding table?

It is preserved and used by the new primary Routing Engine

It is frozen until the routing protocols reconverge

It is rebuilt from scratch by the routing protocols

It is cleared and then repopulated from the configuration

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

Domain 10Objective 3

Graceful Routing Engine Switchover (GRES) JN0-364 Practice Questions (Page 2)

Part of the High Availability domain, which makes up ~12% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–1 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

6concepts

Questions 6–10

6application · medium
A service provider is evaluating GRES for a router that carries critical transit traffic. The provider's main concern is that an RE failure should not disrupt traffic. The provider does not require protocol state to be preserved. What is the primary benefit of GRES in this scenario?
Select an answer first
7application · medium
A network administrator is configuring GRES on a Juniper router. The administrator has enabled GRES at the [edit chassis redundancy] hierarchy and committed the configuration. The administrator now wants to verify that GRES is operational. Which command should the administrator use?
Select an answer first
8application · medium
A network engineer is planning to enable GRES on a router with two Routing Engines. The engineer checks the hardware and finds that the two REs have different amounts of memory. What is the impact of this hardware mismatch on GRES?
Select an answer first
9application · medium
A service provider is upgrading the software on a dual-RE MX960 router that carries live BGP and OSPF traffic. The network engineer wants to perform the upgrade with minimal impact to transit traffic, but the IGP and BGP sessions do not need to be preserved across the upgrade. Which feature should the engineer enable to ensure that forwarding continues uninterrupted during the RE switchover that occurs as part of the upgrade?
Select an answer first
10foundation · easy
During a GRES switchover, what happens to the forwarding table?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to JN0-364

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. “JN0-364” is a trademark of its owner, used for identification only.