300-535 Online Practice Questions and Answers

What tool is used to perform a "what if" failure analysis in a service provider network that is running Segment Routing?

A. Cisco WAN Automation Engine

B. Cisco Evolved Programmable Network Manager

C. Cisco Network Services Orchestrator

D. Cisco Segment Routing Path Computation Element

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

An engineer must change from using NETCONF for streaming telemetry to telemetry data using gRPC framework because NETCONF uses XML for message and payload encoding. Which two messages and payload encodings does gNMI use? (Choose two.)

A. gNMI notifications with XML

B. protobuf notifications with XML

C. protobuf payload

D. JSON payload

E. gNMI notifications with JSON

Refer to the exhibit. What must be added after the last line of the Ansible playbook to check if the output contains "IOS-XR"?

A. wait_for: result[1] contains "IOS-XR"

B. wait_for: result[0] contains IOS-XR

C. notify: "IOS-XR"

D. wait_for_connection:

After a configuration request is sent using NETCONF, which call releases any locks and resources associated with the session?

A.

B.

C.

D.

Refer to the exhibit. An engineer updated the skeleton template. How can a device be entered into the YANG Model?

A. Modify the device instance of the device by referencing the acl_lab variable from our YANG model.

B. Deploy a service instance that configures a VLAN of all of the devices present in Cisco NSO.

C. Deploy a service instance that configures a VLAN of a list of devices referenced to the service YANG model.

D. Modify the device instance by referencing the device variable from our YANG model.

Refer to the exhibit. A Python script is created to add a new device on Cisco NSO using RESTCONF API. The device is added successfully, but a 405 Method Not Allowed RESTCONF error code has received as the line to fetch SSH keys runs. Which code is missing to complete the script?

A. response = requests.put(baseUriOperation + "/devices/device=ios-device/ssh/fetch-host-keys", auth=auth, headers=headers)

B. response = requests.post(baseUriOperation + "/devices/device=ios-device/ssh/fetch-host-keys", auth=auth, headers=headers)

C. response = requests.post(baseUriOperation + "/devices/device=ios-device/ssh/request-host-keys", auth=auth, headers=headers)

D. response = requests.put(baseUriOperation + "/devices/device=ios-device/ssh/request-host-keys", auth=auth, headers=headers)

What are two fundamental design constraints of a RESTful API? (Choose two.)

A. It includes a series of interactions to the API that are dependent on one another.

B. It is dependent on the communication protocol being HTTP.

C. It exposes procedures or functions for a client call.

D. Each interaction is independent from all others on the server side.

E. It is a client-server communication model where the client and the server are independent of one another.

Refer to the exhibit. The ncclient Python script is captured from the ncclient import manager. Which configuration on the Cisco IOS XE device is the script used to enable?

A. router ospf 100 router-id 1.1.1.1 network 10.1.1.0 0.0.0.3 area 0

B. router ospf 100 network 10.1.1.0 0.0.0.3 area 0

C. router ospf 100 router-id 10.1.1.0 network 1.1.1.1 0.0.0.3 area 0

D. router ospf 100 router-id 1.1.1.1

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