JN0-102 Online Practice Questions and Answers

Which two prefixes would summarize the networks shown below? (Choose two.) 192.168.1.0/24 192.168.2.0/24 192.168.3.0/24

A. 192.168.0.0/23

B. 192.168.0.0/22

C. 192.168.0.0/24

D. 192.168.0.0/21

Which two commands are used during the password recovery process? (Choose two.)

A. clear system login

B. boot -s

C. recovery

D. delete system root-authentication

You have enabled traceoptions to log error messages. You want to have the messages displayed to your terminal session automatically as they occur.

Which command should you use in this scenario?

A. file list

B. request message terminal

C. file show

D. monitor start

When using keyboard shortcuts, which keystroke combination allows users to erase a single word to the left of the cursor?

A. Ctrl + a

B. Ctrl + e

C. Ctrl + u

D. Ctrl + w

What information does the help reference command provide?

A. A brief description of commands and their default values

B. The serial number and version number of the device used to open a support case with JTAC

C. A list of all the active hardware alarms on the device

D. A display of the current configuration while in operational mode

Which account is used to access a Junos device in factory-default configuration?

A. root

B. admin

C. juniper

D. user

Which two commands may be used when configuring an IP address for a Gigabit Ethernet interface? (Choose two.)

A. set interfaces ge-0/0/0.0 address 10.1.1.1/24

B. set interfaces ge-0/0/0.0 family inet address 10.1.1.1/24

C. set interfaces ge-0/0/0 unit 0 family inet address 10.1.1.1/24

D. set interfaces ge-0/0/0 address 10.1.1.1/24

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

A. Telnet

B. ICMP

C. DHCP

D. RIP

After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?

A. Layer 1 on the interface is up but Layer 2 is down.

B. Layer 2 on the interface is up but Layer 3 has not been configured.

C. The interface is administratively up but the link status is down.

D. The interface is up but has been administratively turned off.

Which CIDR notation is the equivalent of the subnet mask of 255.255.192.0?

A. /18

B. /19

C. /17

D. /20