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Juniper JN0-690 Exam Syllabus Topics:

Juniper Junos Troubleshooting Sample Questions:

1. Click the Exhibit button.
-- Exhibit -user@host> request system software add ... WARNING: The /var filesystem is low on free disk space. WARNING: This package requires 1 k free, but there WARNING: is only 666502k available. -- Exhibit -
Which three commands are useful in identifying and addressing the cause of the lack of disk space? (Choose three.)

A) show system directory-usage
B) request system storage cleanup
C) show chassis routing-engine
D) request system software add validate
E) show system storage

2. -- Exhibit -[edit] user@R1# run show interfaces ge-1/1/2 terse Interface Admin Link Proto Local Remote ge-1/1/2 up up ge-1/1/2.0 up up aenet --> ae0.0
[edit] user@R1# run show interfaces ge-1/1/3 terse Interface Admin Link Proto Local Remote ge-1/1/3 up up ge-1/1/3.0 up up aenet --> ae0.0
[edit]
user@R1# run show interfaces ae0 terse
Interface Admin Link Proto Local Remote
ae0 up down
ae0.0 up down bridge
[edit]
user@R1# show interfaces ae0
aggregated-ether-options {
lacp {
periodic slow;
system-priority 200;
}
}
unit 0 {
family bridge {
interface-mode trunk;
vlan-id-list 100;
}
}
**************************************************************************
[edit]
user@R2# run show interfaces ge-1/1/2 terse
Interface Admin Link Proto Local Remote
ge-1/1/2 up up
ge-1/1/2.0 up up aenet --> ae0.0
[edit]
user@R2# run show interfaces ge-1/1/3 terse
Interface Admin Link Proto Local Remote
ge-1/1/3 up up
ge-1/1/3.0 up up aenet --> ae0.0
[edit]
user@R2# run show interfaces ae0 terse
Interface Admin Link Proto Local Remote
ae0 up down
ae0.0 up down bridge
[edit]
user@R2# show interfaces ae0
aggregated-ether-options {
lacp {
periodic fast;
system-priority 100;
}
}
unit 0 {
family bridge {
interface-mode trunk;
vlan-id-list 100;
}
}
-- Exhibit --
You have configured a LAG and are now enabling LACP on the ae0 interface. You have configured and committed the configuration as shown in the exhibit. However, the exhibit also shows that the ae0 interface is now in the up/down state.
What must you do to resolve this problem?

A) Change the LACP system-priority of R1 to 300.
B) Configure both routers' ae0 LACP configuration to periodic fast.
C) Configure R1's LACP configuration as active.
D) Configure R2's LACP configuration as passive.

3. You are asked to provide an audit trail for all user activity on your Junos device.
Which syslog configuration statement accomplishes this task?

A) user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file audit-commands {
authorization any;
}
B) user * {
any any;
}
file messages {
any notice;
authorization info;
}
C) user * {
any any;
}
file messages {
any info;
authorization info;
}
D) user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file interactive-commands {
interactive-commands any;
}

4. Click the Exhibit button.
-- Exhibit -user@R1> show route 2.2.2.2
user@R1> show route forwarding-table destination 2.2.2.2
Routing table: default.inet Internet: Destination Type RtRef Next hop Type Index NhRef Netif 2.2.2.2/32 user 1 17.1.1.2 ucst 642 9 xe-1/1/0.0
-- Exhibit -
Referring to the exhibit, which statement is true about transit traffic sent to 2.2.2.2?

A) R1 will forward the packet.
B) R1 will discard the packet.
C) R1 will reject the packet.
D) R1 will redirect the packet to the Routing Engine.

5. What is the name of the routing protocol process on a Junos OS device?

A) cosd
B) chassisd
C) snmpd
D) rpd

Solutions: