Free Juniper JN0-691 Practice Test & Real Exam Questions

  • Exam Code/Number: JN0-691
  • Exam Name/Title: Junos Troubleshooting
  • Certification Provider: Juniper
  • Corresponding Certification: Junos Troubleshooting
  • Exam Questions: 135
  • Updated On: Jun 12, 2026
You are asked to configure your MX480 device to flag a remote DTE into loopback mode.
In which hierarchy would this capability be configured?
Correct Answer: A Vote an answer
In the Junos OS, which type of file dumps the program's environment in the form of memory pointers, instructions, and register data to a file in the event of a panic or other serious malfunction?
Correct Answer: A Vote an answer
Click the Exhibit button.
-- Exhibit -user@R1> show route forwarding-table destination 2.2.2.2 user@R1> show route 2.2.2.2 inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
2.2.2.2/32 *[OSPF/10] 2w3d 22:19:41, metric 1 > to 17.1.1.2 via xe-1/1/0.0 -- Exhibit -
Referring to the exhibit, which statement is true about transit traffic sent to 2.2.2.2?
Correct Answer: B Vote an answer
Your network users have reported problems with FTP transfers, backups, and some Web surfing. You suspect an MTU setting is affecting traffic.
Which two parameters on thepingcommand will help to confirm your assumption? (Choose two.)
Correct Answer: B,C Vote an answer
Click the Exhibit button.

Referring to the exhibit, which statement is correct?
Correct Answer: C Vote an answer
You suspect that your router is missing the .0/24 routes for your local network. You first want to look for the routes on the control plane before troubleshooting the data plane.
Which operational mode command should you issue?
Correct Answer: D Vote an answer
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.)
Correct Answer: A,B,C Vote an answer