Juniper JN0-690 : Junos Troubleshooting

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Juniper Junos Troubleshooting Sample Questions:

1. Which two statements are true regarding BGP path MTU discovery? (Choose two.)

A) BGP path MTU discovery alleviates fragmentation problems.
B) BGP path MTU discovery provides the most efficient use of link bandwidth.
C) BGP path MTU discovery can be enabled only for IBGP sessions.
D) BGP path MTU discovery must be configured on every router along the path.

2. Which three commands will provide details about CPU utilization on a line card? (Choose three.)

A) request pfe execute target fpc1 command "show sched"
B) request pfe execute target fpc1 command "show arp"
C) show chassis fpc
D) request pfe execute target fpc1 command "show thread"
E) show chassis hardware

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

A) Inbound FTP connections to the router would work.
B) Outbound FTP connections initiated from the router would work.
C) Inbound FTP connections to the router would not work.
D) Outbound FTP connections initiated from the router would not work.

4. Click the Exhibit button.
-- 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.)

A) invalid SNMP version indicated
B) unsupported SNMP community name
C) unsupported SNMP version indicated
D) unknown SNMP community name

5. Which two features would be deployed to prevent DoS attacks? (Choose two.)

A) periodic packet management (PPM)
B) Bidirectional Forward Detection (BFD)
C) ARP policer
D) loopback filter

Solutions: