A YANG module is being designed to model a routing table. Each route must have a destination prefix and a next-hop address. The module must allow multiple routes, and each route must be uniquely identified by its destination prefix. Which structure is correct?

container route { leaf destination { type string; } leaf next-hop { type string; } }

list route { leaf destination { type string; } leaf next-hop { type string; } }

list route { key 'destination'; leaf destination { type string; } leaf next-hop { type string; } }

leaf-list route { type string; }

An engineer is designing a YANG module to represent a list of BGP peers. Each peer must be uniquely identified by its IP address, and the module must allow multiple peers. Which structure correctly defines this?

list bgp-peer { leaf ip-address { type string; } leaf description { type string; } }

list bgp-peer { key 'ip-address'; leaf ip-address { type string; } leaf description { type string; } }

container bgp-peer { leaf ip-address { type string; } leaf description { type string; } }

leaf-list bgp-peer { type string; }

Juniper NetworksCertified Specialist, Automation and DevOps (JNCIS-DevOps)

Domain 5Objective 3

YANG Syntax and Data Types JN0-423 Practice Questions (Page 1)

Part of the YANG domain, which makes up ~15% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 2–3 from this objective — we provide 20 practice questions to prepare you well beyond it. (estimate)

20questions here

4free pages

8concepts

Questions 1–5

1application · medium
A YANG module is being designed to model a routing table. Each route must have a destination prefix and a next-hop address. The module must allow multiple routes, and each route must be uniquely identified by its destination prefix. Which structure is correct?
Select an answer first
2foundation · easy
By default, if the config statement is not specified, what is the default value for a data node?
Select an answer first
3foundation · easy
Which section of a YANG module is used to declare the module's name and namespace?
Select an answer first
4application · medium
An engineer is designing a YANG module to represent a list of BGP peers. Each peer must be uniquely identified by its IP address, and the module must allow multiple peers. Which structure correctly defines this?
Select an answer first
5foundation · easy
Which YANG statement is used to define a new type based on an existing type?
Select an answer first

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YANG Syntax and Data Types JN0-423 Practice Questions (Page 1)

Questions 1–5

A YANG module is being designed to model a routing table. Each route must have a destination prefix and a next-hop address. The module must allow multiple routes, and each route must be uniquely identified by its destination prefix. Which structure is correct?

By default, if the config statement is not specified, what is the default value for a data node?

Which section of a YANG module is used to declare the module's name and namespace?

An engineer is designing a YANG module to represent a list of BGP peers. Each peer must be uniquely identified by its IP address, and the module must allow multiple peers. Which structure correctly defines this?

Which YANG statement is used to define a new type based on an existing type?

Keep studying — YANG