Q8. Which command causes the Junos OS temporarily activate a configuration?

A. commit check

B. commit synchronize

C. commit confirmed

D. commit and-quit

Q9. A network administrator would like to view detailed interface status, properties, statistics, errors, and CoS packet counters.

Which operational command will display this information?

A. show interfaces extensive

B. show interfaces

C. show configuration interfaces

D. show interface status

Q10. Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true? (Choose two.)

A. Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re-transmit.

B. The device with the lowest MAC address is permitted to retransmit first.

C. The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.

D. Both devices send a jam signal to notify all other devices of the collision.

Q11. Which two ping command parameters would be used to troubleshoot MTU issues? (Choose two.)

A. ping <destination> size

B. ping <destination> rapid

C. ping <destination> verbose

D. ping <destination> do-not-fragment

Q12. Which command do you use to display the messages seen during the last system boot?

A. show system boot-messages

B. show chassis messages

C. show file system boot-messages

D. show boot-log messages

Q13. Which operational command would you use to quickly verify the state of all interfaces?

A. show interfaces terse

B. show interfaces

C. show configuration interfaces

D. show interface status

Q14. Which two protocols use UDP as a transport protocol by default? (Choose two.)

A. Telnet

B. ICMP

C. DHCP

D. RIP

Q15. -- Exhibit --

user@router> show route protocol static

inet.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden)

+ = Active Route, - = Last Active, * = Both

192.168.1.128/27 *[Static/5] 00:03:13

>to 10.20.106.10 via fe-0/0/5.1 192.168.1.144/29 *[Static/5] 00:03:13

>to 10.20.14.131 via ge-0/0/0.0 192.168.1.192/27 *[Static/5] 00:03:13

>to 10.18.1.1 via ge-0/0/1.0 192.168.1.128/28 *[Static/5] 00:01:06

>to 10.20.14.130 via ge-0/0/0.0

-- Exhibit --

Given the routing entries shown in the exhibit, which next-hop IP address will be used for the destination IP address 192.168.1.142? (Assume that only static routes are available for the destination.)

A. 10.20.106.10

B. 10.20.14.131

C. 10.18.1.1

D. 10.20.14.130

Q16. Which command will display the temperature of the Routing Engine's CPU?

A. show chassis environment

B. show chassis routing-engine

C. show chassis temperatures

D. show chassis status

Q17. When using the monitor traffic command on Junos devices, which UNIX-based utility is accessed?

A. snoop

B. tcpdump

C. monitor

D. tail