An OSPF neighbor is stuck in the Exchange state.
Which condition would cause this to happen?

A customer operates a multi-vendor production network. They report that LSAs are aging out on
Junos devices. Which OSPF parameter must be tuned to prevent this behavior?

You have configured graceful Routing Engine switchover (GRES) on your device running the
Junos OS. Which command would you run to ensure that GRES is functioning properly?

Which two actions are required when performing a unified in-service software upgrade (ISSU)?
(Choose two.)

Which three statements are true about performing an ISSU on a Junos device? (Choose three.)

Using Virtual Router Redundancy Protocol (VRRP), you want to statically force the priorities of the
master and backup routers. Which priority would you set on the master router?

You have configured and successfully committed the configuration for nonstop active routing
(NSR). Which command would you use to determine if NSR is operating correctly?

Refer to the Exhibit.
— Exhibit –
user@router> show configuration system services | display inheritance
ssh;
telnet;
— Exhibit –Referring to the exhibit, which two statements are true? (Choose two.)

Refer to the Exhibit.
— Exhibit –user@router> show snmp statistics
SNMP statistics:
Input:
Packets: 246213, Bad versions: 12, Bad community names: 12,
Bad community uses: 0, ASN parse errors: 0,
Too bigs: 0, No such names: 0, Bad values: 0,
Read onlys: 0, General errors: 0,

Total request varbinds: 227084, Total set varbinds: 67,
Get requests: 44942, Get nexts: 1 , Set requests: 10712,
Get responses: 0, Traps: 0,
Silent drops: 0, Proxy drops: 0, Commit pending drops: 0,
Throttle drops: 0,
V3 Input:
Unknown security models: 0, Invalid messages: 0
Unknown pdu handlers: 0, Unavailable contexts: 0
Unknown contexts: 0, Unsupported security levels: 0
Not in time windows: 0, Unknown user names: 0
Unknown engine ids: 0, Wrong digests: 0, Decryption errors: 0
Output:
Packets: 246093, Too bigs: 0, No such names: 0,
Bad values: 0, General errors: 0,
Get requests: 0, Get nexts: 0, Set requests: 0,
Get responses: 246025, Traps: 0
— Exhibit –A new SNMP session has recently been implemented on this router and is experiencing problems
sending and receiving SNMP information.
Referring to the exhibit, which two problems are indicated by the received messages from the
NMS? (Choose two.)

Refer to the Exhibit.
— Exhibit –=================== Bootstrap installer starting ===================
Initialized the environment
Routing engine model is RE-S-1800×4
Discovered that flash disk = ad0 , hard disk = ad1
mount: /dev/ad1s1f : Invalid argument
ERROR: mount_partition: Mount /dev/ad1s1a /mnt failed
You are now in a debugging subshell (you may not see a prompt)…
#
— Exhibit –During the boot of your MX480, you see the output shown in the exhibit.
Which three statements are true? (Choose three.)