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Juniper Junos Troubleshooting Sample Questions:

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

A) Any unsupported PICs will cause the ISSU process to fail with "Error: incompatible hardware detected."
B) ksyncd synchronizes the kernel on the backup RE with the master RE.
C) The backup RE verifies disk space on both REs, unsupported configurations, and unsupported PICs.
D) Every PFE on each FPC downloads the new software from the backup RE.
E) The master RE verifies disk space on both REs, unsupported configurations, and unsupported PICs.

2. Which three statements are correct about rpd related troubleshooting on devices running the Junos OS? (Choose three.)

A) A possible method to troubleshoot rpd scheduler slips is to temporarily enable task accounting.
B) A possible cause for an overworked rpd is excessive protocol tracing.
C) A log for rpd scheduler slip is an indication of something that should be investigated and resolved.
D) A log for rpd scheduler slip is a common, harmless syslog and can be ignored.
E) Excessive protocol tracing can never be a cause for an overworked rpd.

3. A technician has reported an alarm on your device running the Junos OS. You suspect it is due to the temperature in the rack. Which two commands will confirm your suspicion? (Choose two.)

A) show chassis alarms
B) show chassis firmware
C) show chassis hardware
D) show chassis environment

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

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

5. Click the Exhibit button.
-- Exhibit --
user@R1> show configuration interfaces lo0
unit 5 {
family inet {
filter {
input JUNOS;
}
address 5.5.5.5/32;
}
}
user@R1> show configuration firewall family inet filter JUNOS
term term1 {
from {
protocol tcp;
port [ telnet ftp ftp-data snmp ssh syslog http tacacs 64644 1024-65535 ];
}
then {
log;
accept;
}
}
term default {
then {
discard;
} } -- Exhibit -
Referring to the exhibit, which three statements are true? (Choose three.)

A) R1 will drop all BGP packets.
B) R1 will accept telnet traffic.
C) R1 will drop all non-TCP transit traffic.
D) R1 will drop all traffic with destination address 5.5.5.5.
E) R1 will drop all OSPF packets.

Solutions: