Juniper Automation and DevOps, Specialist (JNCIS-DevOps)

QUESTION NO: 1
What is the purpose of an __init__.py file?

A. An __init__.py file indicates to the Python interpreter that a directory contains Python packages or modules B. An __init__.py file initializes a Python application with default values for instantiated objects C. An __init__.py file contains strings for additional directories that the Python interpreter adds to sys.path
[] D. __init__.py file sets all magic attributes with the __init__.prefix with the appropriate default values

Correct Answer: A

QUESTION NO: 2
Click the Exhibit button.
Exhibit:
Junos Event Policy Configuration

Referring to the exhibit. What will the hostname be if interface ge-0/0/0 goes down?

A. int-test-1 B. int-test-3 C. int-test-2 D. int-test-4

Correct Answer: A

QUESTION NO: 3
Click the Exhibit button.
Exhibit:

What will executing the program shown in the exhibit retrieve from a Junos device?

A. the current memory utilization B. the current software version on the device C. the FPC inventory of the device D. the previous configuration changes of the device

Correct Answer: B

QUESTION NO: 4
Click the Exhibit button.
Exhibit:

Referring to the exhibit, what should <CHANGEME> be replaced with to correctly print out the exception message Cannot connect to device?

A. PermissionError B. RpcError C. CommitError D. ConnectError

Correct Answer: D

QUESTION NO: 5
A customer has a control machine with a default Ansible installation. During execution of an Ansible module against a Junos device, the Ansible control machine generates the msg: unable to connect to router1.example.com: ConnectRefusedError (router1.example.com) error.
What is the cause for this error?

A. router1.example.com was not defined in /etc/hosts on the control machine B. router1.example.com was not defined in /etc/ansible/inventory/hosts on the control machine C. Ansible cannot authenticate to the device D. Ansible cannot connect to the device through NETCONF

Correct Answer: D

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QUESTION NO: 6
What are two attributes of the jsd JET service process? (Choose two)

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

Correct Answer: A,C

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QUESTION NO: 7
Which statement describes the relationship between YANG and NETCONF?

A. YANG models the state and configuration data manipulated by the NETCONF protocol B. YANG is the programming language used to generate base classes to develop the NETCONF protocol C. NETCONF models XML data used to program YANG modules D. NETCONF is the programming language used to create the state and configuration data manipulated by YANG

Correct Answer: A

Juniper Automation and DevOps, Specialist (JNCIS-DevOps) - JN0-421 Exam Questions