Free JN0-220 Exam Dumps Preview

Question 1

Multiple choice

Which two statements regarding NETCONF are true? (Choose two.)

1. A

   NETCONF is a standardized protocol and works with multiple vendors' devices

2. B

   NETCONF operations are processed by the jsd process

3. C

   NETCONF is a proprietary protocol and works only with Junos devices

4. D

   NETCONF operations are processed by the mgd process

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Correct answersA, D

Question 2

Multiple choice

You want to restrict access to the REST API on a Junos device?

What are two ways to accomplish this task? (Choose two.)

1. A

   Enable a maximum number of connections

2. B

   Restrict access by the source MAC address

3. C

   Restrict access by the source IP address

4. D

   Enable a schedule of specific access times

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Correct answersC, D

Question 3

Single choice

The Junos CLI communicates directly with which API?

1. A

   REST API

2. B

   JET API

3. C

   SNMP API

4. D

   XML API

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Correct answerD

Explanation

References:
https://books.google.com.pk/books?id=tICPHiJG-RYC&pg=PA46&lpg=PA46&dq=Junos+CLI
+communicates+directly+with +API&source=bl&ots=s3TzxrCmwx&sig=DivGQx_t9S487sz8ncOuEj8wc4c&hl=en&sa=X&ved=2ahUKEwij 3a-I7areAhULzYUKHQ_ACEIQ6AEwBHoECAYQAQ#v=onepage&q=Junos%20CLI%20communicates% 20directly%20with% 20API&f=false

Question 4

Single choice

What is Python?

1. A

   Python is a product developed by Juniper to facilitate automation

2. B

   Python is the name of a switch that Juniper sells

3. C

   Python is the name of a router that Juniper sells

4. D

   Python is a programming language

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Correct answerD

Question 5

Single choice

PyEZ is an extension library for which programming tool?

1. A

   Ruby

2. B

   Puppet

3. C

   Chef

4. D

   Python

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Correct answerD

Explanation

References:
https://github.com/Juniper/py-junos-eznc

Question 6

Single choice

How does YAML differ from JSON in data interchange formats?

1. A

   YAML supports comments

2. B

   JSON is language specific

3. C

   JSON is a superset of YAML

4. D

   YAML is not indentation aware

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Correct answerA

Question 7

Single choice

Given the <name> username </name> XML code, what is the entire string, including the opening and closing tags, called?

1. A

   element node

2. B

   name node

3. C

   text node

4. D

   data node

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Correct answerA

Question 8

Single choice

Which statement is correct about automation?

1. A

   Automation increases the amount of time it takes to retrieve information from a large number of devices

2. B

   Automation reduces the costs of managing a large number of devices

3. C

   Automation increases the number of commands in the CLI

4. D

   Automation increases the amount of time needed to make changes to large numbers of devices

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Correct answerB

Question 9

Single choice

Which development model is the classic approach to software development?

1. A

   Waterfall

2. B

   Scrum

3. C

   Kanban

4. D

   Lean

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Correct answerA

Explanation

References:
https://searchsoftwarequality.techtarget.com/definition/waterfall-model

Question 10

Multiple choice

Which two statements are true about data structures? (Choose two.)

1. A

   YAML is human readable and supports serializing arbitrary native data structures

2. B

   YAML follows the lowest common denominator data types and requires simple processing between different programming environments

3. C

   JSON is language dependent, which uses conventions that are familiar to programmers of languages like C, C++, Java, Perl, and Python

4. D

   JSON is simple to generate and parse, though human readability is sacrificed

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Correct answersA, C