Automation and DevOps, Specialist (JNCIS-DevOps) JN0-420 Exam Questions with VCE and PDF for Free Download from PassLeader (Question 21 – Question 25)

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QUESTION 21
Which two automation frameworks are agentless when managing Junos devices? (Choose two.)

A.    SaltStack
B.    Ansible
C.    Puppet
D.    Chef

Answer: AB

QUESTION 22
What are two attributes of the jsd JET service process? (Choose two.)

A.    It executes one API request per session.
B.    It executes APIs from multiple sessions in parallel.
C.    It supports only one client session at a time.
D.    It creates a separate thread to service JET application requests.

Answer: BD
Explanation:
To support application interaction with Junos OS, the JETservice process (jsd), by default, uses TCP port 32767 to listen for and receive requests from applications to execute APIs. Whenever a request comes on the TCP port, jsd creates a separate thread to service the JET application request. The session remains established if the client and server are both up and able to communicate with each other. Over the lifetime of a session, jsd can execute many APIs, and it can execute APIs from multiple sessions in parallel. You can have a maximum of 8 active client sessions connected at any given time.

QUESTION 23
You are asked to write an application that interacts directly with the internal APIs belonging to rpd Which statement is true in this scenario?

A.    You must write the application using the XML APIs.
B.    You must write the application using the REST APIs.
C.    You must write the application using the JET APIs.
D.    You must write the application using the YANG APIs.

Answer: C

QUESTION 24
You want to push a configuration onto a Junos device without using NETCONF. Which two will accomplish this task? (Choose two.)

A.    ZTP
B.    Ansible
C.    JET
D.    JSNAPy

Answer: AC

QUESTION 25
Which two primary processes are used by Juniper devices for on-box or off-box automation? (Choose two.)

A.    mgd
B.    ancpd
C.    jsd
D.    rpd

Answer: BC


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