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JN0-102 Online Practice Questions

Internet Associate, Junos(JNCIA-Junos)

419 questions available · Page 1 of 42

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Question 1 Single choice

-- Exhibit --

user@router> show system alarms

1 alarms currently active

Alarm time Class Description
2013-09-14 23:54:01 UTC Minor Rescue configuration is not set

-- Exhibit --

Which command will resolve the problem shown in the exhibit?

  1. A

    user@router> request system configuration rescue save

  2. B

    user@router# request system configuration rescue save

  3. C

    user@router> file copy current /config/rescue.conf

  4. D

    user@router# file copy current /config/rescue.conf

Show answer and explanation

Correct answer: A

Question 2 Single choice

Which statement is true about the routing table?

  1. A

    The routing table exists in the control plane only.

  2. B

    The routing table exists in the control plane and in the forwarding plane.

  3. C

    The routing table contains both active and inactive routes.

  4. D

    The routing table is stored on compact flash.

Show answer and explanation

Correct answer: A

Question 3 Multiple choice

Which two statements are correct about firewall filters in the Junos OS? (Choose two.)

  1. A

    Firewall filters are stateless.

  2. B

    Firewall filters are used to control routing information that is exchanged between devices.

  3. C

    Firewall filters are used to control traffic passing through the device.

  4. D

    Firewall filters can only be applied to traffic entering the device.

Show answer and explanation

Correct answers: A, C

Question 4 Single choice

Which operating system do Juniper Networks MX Series routers use?

  1. A

    IOS

  2. B

    MX-OS

  3. C

    UNIX

  4. D

    Junos OS

Show answer and explanation

Correct answer: D

Question 5 Single choice

You have a network containing 120 routers. You must establish and maintain connectivity between the loopback interfaces of all routers. Because of the critical services using the network, you need redundancy and fast failover.

Which routing protocol should you use in this scenario?

  1. A

    OSPF

  2. B

    RIP

  3. C

    BGP

  4. D

    static

Show answer and explanation

Correct answer: A

Question 6 Single choice

You are asked to change the cable on interface ge-0/2/1.

Which statement is correct?

  1. A

    The cable is found on slot 2, port 0, and FPC 1.

  2. B

    The cable is found on FPC 0, slot 1, and port 2.

  3. C

    The cable is found on port 1, slot 0, and FPC 2.

  4. D

    The cable is found on slot 2, port 1, and FPC 0.

Show answer and explanation

Correct answer: D

Question 7 Single choice

Which command will save the current active configuration as the rescue configuration?

  1. A

    user@router# save | rescue

  2. B

    user@router> request system configuration rescue save

  3. C

    user@router# save rescue configuration

  4. D

    user@router> file save rescue-configuration

Show answer and explanation

Correct answer: B

Question 8 Single choice

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

What does this indicate?

  1. A

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

  2. B

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

  3. C

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

  4. D

    The interface is up but has been administratively turned off.

Show answer and explanation

Correct answer: C

Question 9 Single choice

-- Exhibit --

user@router> show route protocol static

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

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

192.168.1.0/24 *[Static/5] 00:03:13

>to 10.20.106.10 via fe-0/0/5.1

192.168.1.192/26 *[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

192.168.1.4/30 *[Static/5] 00:01:06

>to 10.20.14.130 via ge-0/0/0.0

-- Exhibit --

Using the routing table shown in the exhibit, what will be the next-hop IP address used for a destination IP address of 192.168.1.1? (Assume that the only routes to this destination are static routes.)

  1. A

    10.20.14.130

  2. B

    10.18.1.1

  3. C

    10.20.14.131

  4. D

    10.20.106.10

Show answer and explanation

Correct answer: D

Question 10 Single choice

At which command prompt would you issue the set date <date> command?

  1. A

    [edit chassis]user@router#

  2. B

    [edit]user@router#

  3. C

    [edit system]user@router#

  4. D

    user@router>

Show answer and explanation

Correct answer: D