[November-2018]Full Version 300-550 Dumps VCE and PDF 73Q for Free Download[Q12-Q22]

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QUESTION 12
Which service does a VIRL host use to validate a license?

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

Answer: D
Explanation:
http://virl-dev-innovate.cisco.com/vs.client.php
Step 9:?Activate VIRL
Dont' be alarmed.
Until you successfully connect to Cisco's SaltStack infrastructure and validate your VIRL license you can expect to encounter a number of 'Failed to...' error messages.?
Unless these occur after Step 22 they can safely be ignored.

QUESTION 13
Which two queries are supported to access objects within the ACI Management Information Tree? (Choose two.)

A. DN query
B. fabric query
C. RN query
D. class query
E. property query

Answer: AD

QUESTION 14
Refer to the exhibit. A network engineer created a Bash script to automate some network device tasks. What are two potential risks when a network operator runs this script as written? (Choose two.)

A. The script results in network devices losing connectivity.
B. The script executes too slowly.
C. The script configures unintended commands.
D. The script exposes users' passwords.
E. The script passes configuration data in clear text.

Answer: BC

QUESTION 15
Which concept should you use when trying to improve a frequently repealed and predictable manual process?

A. scalability
B. lifecycle management
C. deployment
D. orchestration
E. automation

Answer: E

QUESTION 16
Which two parts are required for a RESTful API call? (Choose two.)

A. resource
B. parameter
C. method
D. query
E. fragment

Answer: AC
Explanation:
https://tools.ietf.org/html/draft-ietf-netconf-restconf-13#section-5.1

QUESTION 17
Refer to the exhibit. Based on the YANG data model snippet, which RESTCONF URI should you use to retrieve the interfaces container?

A. /restconf/data/my-interfaces:interfaces
B. /restconf/data/my-interfaces:container:interfaces
C. /restconf/operations/my-interfaces:interfaces
D. /restconf/ data/com. my-interfaces: interfaces

Answer: C

QUESTION 18
Drag and drop the tools on the left to their corresponding functions on the right.

Answer:

Explanation:
https://en.wikipedia.org/wiki/Git
Git is a version control system (VCS) for tracking changes in computer files and coordinating work on those files among multiple people.
https://en.wikipedia.org/wiki/GitHub
GitHub is a web-based Git or version control repository and Internet hosting service. It offers all of the distributed version control and source code management (SCM) functionality of Git as well as adding its own features. It provides access control and several collaboration features such as bug tracking, feature requests, task management, and wikis for every project.
https://jenkins.io/
The leading open source automation server, Jenkins provides hundreds of plugins to support building, deploying and automating any project.
https://en.wikipedia.org/wiki/Ansible_(software)
Ansible is an open-source automation engine that automates software provisioning, configuration management, and application deployment.

QUESTION 19
Which authentication method can be used to access the ACIAPIC controller?

A. REST API using HTTP and header-based authentication
B. REST API using HTTPS and JSON-formatted username/password payload
C. SOAP API using header-based authentication
D. SOAP API using SSL and header-based authentication

Answer: B
Explanation:
The APIC controller serves as an unified interface for the ACI fabric. The all interactions with the APIC leverage a RESTful API that, as depicted in Figure 6-5, can be accessed by tools provide by Cisco, such as the default GUI, or third party applications, for example, Cisco CloudCenter or Python scripts. The single RESTful interface provides uniformity of both the RESTful call and the provided data.

QUESTION 20
What is the best way to specify the location of Python within a script?

A. #!/usr/bin/env bash
B. #!/usr/bin/env python
C. #!/usr/loca 1/bin/python
D. #!/usr/bin/python
E. #!/scriptname

Answer: B

QUESTION 21
Which statement about NX-API REST is true?

A. Configuration and state information is stored in the MIT.
B. NX-API REST requires a commercial license to enable.
C. Partial commits are supported.
D. Fault objects may be queried, but event objects cannot be queried.

Answer: A
Explanation:
https://developer.cisco.com/site/nx-os/docs/apis/nx-api-rest/
NX-API-REST Modeled Objects
In the Cisco NX-API-REST framework, configuration and state information of the switch is stored in a hierarchical tree structure known as the management information tree (MIT), which is accessible through the API.

QUESTION 22
Which two northbound protocols are supported by the Cisco NSO Controller? (Choose two)

A. REST
B. SOAP
C. OpenFlow
D. NETCONF
E. PCEP

Answer: AD
Explanation:
Referred to Cisco Learning Labs,
https://learninglabs.cisco.com/lab/06-dmi-02-yang-data-modeling-overview/step/3

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