300-535 Online Practice Questions and Answers

Which two Python libraries are used to write a script to retrieve network device information using RESTCONF? (Choose two.)

A. PySNMP

B. requests

C. ncclient

D. YANG

E. json

Which two use cases are valid for Cisco WAN Automation Engine? (Choose two.)

A. deployment of SR policies

B. integration with Cisco XTC

C. what-if analysis

D. device manager

E. network controller

Which schema allows device configuration elements to be enclosed within a remote procedure call message when NETCONF is implemented?

A. JSON-RPC

B. XML

C. YAML

D. JSON

Refer to the exhibit. After this operation, what else is needed to change the hostname of the router to IOS-XR-SJC-19?

A.

B.

C.

D.

Which data format should be used to serialize structured data in the most compact way?

A. protobufs

B. YAML

C. JSON

D. XML

Refer to the exhibit. Which XML output is a valid instantiation of the YANG model?

A. Option A

B. Option B

C. Option C

D. Option D

Refer to the exhibit. Which two URI entries are optional and functional in this RESTCONF URI structure? (Choose two.)

A. fragment

B. query

C. operation

D. api-entry

E. path

Refer to the exhibit. Which command prints out (44, 22) when this code is run on Python 3?

A. print(swap1(d, b))

B. print(swap2(a, b))

C. print(swap1(b, d))

D. print(swap2(22, 44))

Refer to the exhibit. What is the significance of "*" before the "father" leaf that is shown in the pyang tree output?

A. It is a node list in a leaf type node.

B. The father leaf is a key in the family list type.

C. The leaf father is read-write in the family list.

D. The node father is read-only in the family list.

A user is debugging a problem with model-driven dial-in/out streams with gRPC for a Cisco IOS XR implementation. There is no streaming data and the path is not resolved when the show telemetry model-driven subscription command is issued on the router. What is the cause of the problem?

A. The emsd process is not running.

B. There are polling interval problems.

C. SNMP is not enabled.

D. There is no support for IOS XR 64-bit.

Refer to the exhibit. Based on the YANG presented, what is the correct xpath to retrieve the router named "ios-device" under the "CustomerA" service name?

A. /ncs:abc_service/CustomerA/ios-device

B. /abc_service/CustomerA/"ios-device"

C. /ncs:service/abc_service/"CustomerA"/ios-device

D. /ncs:services/abc_service/CustomerA/ios-device

You create a simple service package skeleton in Cisco NSO using ncs-make-package 璼ervice-skeleton template vlan. Which two steps must be performed to complete the service? (Choose two.)

A. Create the VLAN service template in XML.

B. Modify the VLAN FastMap algorithm.

C. Start the VLAN Python VM.

D. Create the VLAN service model in YANG.

E. Compile the VLAN NED.

Which NETCONF datastore is locked while the network device configuration is edited?

A. running

B. common

C. startup D. working

What is an interior YANG data node that exists in at most one instance in the data tree and has no value?

A. listing node

B. tree node

C. container node

D. leaf node

What are two advantages of using Python virtual environments? (Choose two.)

A. They allow for multiple Python projects to use different versions of the same dependency without conflict.

B. They allow multiple Python applications to share virtual memory between subprocesses.

C. They allow for isolated environments where each can use a different version of Python.

D. They allow for all Python projects to utilize the same set of shared dependencies.

E. They allow for multiple virtual machines to share a single Python environment.