A service provider is automating the provisioning of new services using YANG. The automation team wants to ensure that the configuration data is consistent across all devices. Which YANG feature is most directly used to enforce consistency?

The 'description' statement, which documents the purpose of a node.

The 'reference' statement, which provides a reference to external documentation.

The 'status' statement, which indicates the lifecycle status of a node.

The 'must' statement, which defines a constraint that must be true for the data to be valid.

A network engineer is writing a YANG module to model a new service that includes a list of interfaces, each with a name and MTU. The engineer wants to ensure that the MTU is always between 1280 and 9216. Which YANG construct should be used to enforce this constraint?

A container with a presence statement

A leaf-list of type string with a pattern statement

A leaf of type uint16 with a range statement

An rpc statement with an input section

A YANG module defines a leaf of type 'leafref' that references another leaf in the same module. What is the primary purpose of using a 'leafref' type?

To allow the leaf to have multiple values.

To create a new data type that is a copy of another type.

To ensure that the value of the leaf matches the value of another leaf.

A network operator wants to automate the collection of operational state data from routers to feed a monitoring system. The operator wants to use a standardized approach that works across multiple vendors. Which combination of technologies is most appropriate?

CLI scripting with screen scraping

YANG models with NETCONF or RESTCONF

What is the role of YANG in the context of NETCONF and RESTCONF?

It is a scripting language used to write automation scripts for network devices

It is a transport protocol that replaces SSH for secure device access

It provides a graphical interface for configuring network devices

It defines the data models that describe the configuration and operational data exchanged by these protocols

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Domain 5Objective 4

5.4 Describe the High-Level Principles and Benefits of a Data Modeling Language, Such as YANG 350-501 Practice Questions (Page 2)

Part of the Automation and Assurance domain, which accounts for 15% of the 350-501 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 1–1 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

4concepts

15%of the exam

Questions 6–10

6expert · hard
A service provider is automating the provisioning of new services using YANG. The automation team wants to ensure that the configuration data is consistent across all devices. Which YANG feature is most directly used to enforce consistency?
Select an answer first
7application · medium
A network engineer is writing a YANG module to model a new service that includes a list of interfaces, each with a name and MTU. The engineer wants to ensure that the MTU is always between 1280 and 9216. Which YANG construct should be used to enforce this constraint?
Select an answer first
8expert · hard
A YANG module defines a leaf of type 'leafref' that references another leaf in the same module. What is the primary purpose of using a 'leafref' type?
Select an answer first
9application · medium
A network operator wants to automate the collection of operational state data from routers to feed a monitoring system. The operator wants to use a standardized approach that works across multiple vendors. Which combination of technologies is most appropriate?
Select an answer first
10foundation · easy
What is the role of YANG in the context of NETCONF and RESTCONF?
Select an answer first

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