5.0 Infrastructure and Automation

Question 1

What is the purpose of a data model?

Answer 1

To give a description of the resources, their structure and constraints.

Question 2

What do data models define, in relation to an API?

Answer 2

They define the syntax and semantics, including constraints of working with the API.

Question 3

What are the core components of a model driven API?

Answer 3

Data Models, Transport, Encoding, and Protocols.

Question 4

What are the main protocols used with model-driven APIs?

Answer 4

NETCONF, RESTCONF, and gRPC

Question 5

What are the two common encoding types with model-driven APIs?

Answer 5

XML and JSON

Question 6

What is the (3) basic purpose of NETCONF?

Answer 6

Transport configuration payloads to a device, targeted at a specifc datastore.

Retrieve configuration data when queried

Support notifications, often based on SNMP trap definitions

Question 7

What is NETCONF transported over?

Answer 7

TLS and SSH

Question 8

What Python client side tool, is used for NETCONF

Answer 8

ncclient

Question 9

In regards to NETCONF, what is defined as the complete set of configuration data that is required to get a device from its initial default state into a desired operational state?

Answer 9

Configuration Datastore

Question 10

What NETCONF datastore holds the complete configuration currently active on the network device.?

Answer 10

running

Question 11

What NETCONF datastore holds configuration data that serves as a workplace for creating and manipulating configuration data? A operation causes the running configuration of the device to be set to this datastore.

Answer 11

candidate

Question 12

What NETCONF datastore holds the configuration loaded by the device when it boots?

Answer 12

startup

Question 13

What are all NETCONF operations encoded as?

Answer 13

XML

Question 14

What language NETCONF data models described with?

Answer 14

YANG

Question 15

Why is YANG used to describe the data models with NETCONF?

Answer 15

To provide a standard way to model configuration and operational data. It can be interoperable across different vendors.

Question 16

What NETCONF operation retrieves running configuratin and device state information?

Answer 16

get

Question 17

What NETCONF operation retrieves all or part of a specified configuration datastore?

Answer 17

get-config

Question 18

What NETCONF operation loads all or part of a specified configuration to the specified target configuration datastore?

Answer 18

edit-config

Question 19

What NETCONF operation creates or replaces an entire configuration datastore with the contents of another complete configuration datastore?

Answer 19

copy-config

Question 20

What NETCONF operation deletes a configuration datastore?

Answer 20

delete-config

Question 21

What NETCONF operation allows the client to lock the entire configuration datastore system of a device. Such locks are intended to be short-lived. They allow a client to make a change without fear of interaction with other NETCONF clients, non-NETCONF clients (for example, SNMP and CLI scripts), and human users.

Answer 21

lock

Question 22

What NETCONF operation releases a configuration lock?

Answer 22

unlock

Question 23

What NETCONF operation requests the graceful termination of a NETCONF session?

Answer 23

close-session

Question 24

What NETCONF operation forces the termination of a NETCONF session?

Answer 24

kill-session

Question 25

What must all NETCONF messages end with, to let the other end of the connection know it is done sending the message?

Answer 25

]]>]]>

Question 26

YIN

Answer 26

YANG-Independent Notation

Question 27

What is the syntax that modules in YANG can be translated into, which has an XML equivalent syntax?

Answer 27

YIN

Question 28

YDK

Answer 28

YANG Development Kit

Question 29

T/F - YDK will only perform local (client-side) checks.

Answer 29

True