Which high availability feature is enabled by default on Junos devices?
A. nonstop active routing
B. root protection
C. nonstop forwarding
D. graceful Routing Engine switchover
You have a router with dual Routing Engines. You want to ensure that your users experience minimum downtime. You have decided to enable graceful Routing Engine switchover on the router.
Which output accomplishes this task?
A. {master} user@R1-re0> show system snapshot Information for snapshot on hard-disk Creation datE. Nov 1 1 :5 :0 2012 JUNOS version on snapshot: jbase : 11.4R2 jcrypto: 11.4R2 jdocs : 11.4R2 jkernel: 11.4R2 jpfe : M40-11.4R2 jroute : 11.4R2
B. {backup} user@R1-re1> show system switchover Graceful switchover: On Configuration databasE. Ready kernel databasE. Ready Peer StatE. steady State
C. {backup} user@R1-re1> show system snapshot
Information for snapshot on hard-disk
Creation datE. Nov 1 1 :5 :0 2012
JUNOS version on snapshot:
jbase : 11.4R2
jcrypto: 11.4R2
jdocs : 11.4R2
jkernel: 11.4R2
jpfe : M40-11.4R2
jroute : 11.4R2
D. {master} user@R1-re0> show system switchover Graceful switchover: On Configuration databasE. Ready kernel databasE. Ready Peer StatE. steady State
Which OSPF LSA type is sent from the ABR to describe an ASBR that is in an area to which it is connected?
A. Type 7
B. Type 5
C. Type 4
D. Type 3
What are two functions of an OSPF BDR? (Choose two.)
A. The BDR advertises link-state information with all other OSPF routers on the segment.
B. The BDR forms an adjacency with all other OSPF routers on the segment.
C. The BDR is ready to assume the role of the DR device if it fails.
D. The BDR functions can be distributed to the DR device on the segment.
R0 is a Juniper Networks MX router with dual Routing Engines. You must load new software on R0 while ensuring no control plane disruption and minimal data loss.
Which three features meet the requirement? (Choose three.)
A. graceful restart
B. NSR
C. graceful Routing-Engine switchover (GRES)
D. unified ISSU
E. BFD
What are two ways that nonstop routing works? (Choose two.)
A. by enabling redundant REs to switch from primary RE to backup RE
B. by alerting peer nodes of any routing table changes
C. by enabling redundant REs to run a different version of the Junos OS
D. by replicating routing protocol information
What are three ways that graceful Routing Engine switchover provides redundancy? (Choose three.)
A. by preserving interface and kernel information
B. by reducing time of RE failover
C. by preserving the data plane information
D. by preserving the control plane information
E. by not restarting the PFE
Which protocol do multichassis link aggregation group (MC-LAG) devices use to exchange the control information between two MC-LAG network devices?
A. Virtual Chassis Control Protocol
B. Multichassis Link Aggregation Protocol
C. Link Aggregation Control Protocol
D. Inter-chassis Control Protocol
Which two statements are true about unified ISSU? (Choose two.)
A. It allows gradual implementation of new features.
B. It reduces operating costs while delivering higher service levels.
C. It involves network down time during software image upgrades.
D. It requires graceful Routing Engine switchover (GRES) and nonstop active routing (NSR).
What are two characteristics of load-balancing implementation on a Junos device? (Choose two.)
A. It balances packets on a per-packet basis.
B. It balances packets on a per-flow basis.
C. It is enabled through a policy.
D. It is enabled by default.
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