300-535 Actual Questions Answers PDF 100% Cover Real Exam Questions [Q17-Q39]

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300-535 Actual Questions Answers PDF 100% Cover Real Exam Questions

300-535 Exam questions and answers

Cisco 300-535 Automating and Programming Cisco Collaboration Solutions certification exam is designed for IT professionals who are interested in automating and programming Cisco Collaboration Solutions. 300-535 exam is a part of the Cisco Certified DevNet Specialist Certification which is designed to help professionals with their programming skills and knowledge of Cisco technologies. 300-535 exam validates the candidate’s knowledge and ability to implement Cisco Collaboration Solutions using programming and automation techniques.

Candidates who successfully pass the Cisco 300-535 certification exam earn a Cisco Certified DevNet Specialist-Collaboration Automation and Programmability certification, which showcases their expertise and commitment to the industry standards and best practices in Cisco Collaboration solutions.

Q17. Refer to the exhibit.

What must be added after the last line of the Ansible playbook to check if the output contains “IOS-XR”?

wait_for: result[1] contains “IOS-XR”

wait_for: result[0] contains IOS-XR

notify: “IOS-XR”

wait_for_connection:

Q18. Drag and Drop Question
Drag and drop the code snippets from the bottom onto the blanks in the code to construct an XPath query that retrieves the router ID for the OSPFv2 protocol. Not all options are used.

Explanation:

Q19. Drag and Drop Question
An engineer must deploy a previously created service to Cisco NSO by using the CLI. Drag and drop the tasks that must be performed from the left into the required sequence on the right.

Q20. What is a challenge of consuming an API synchronously?

The response is slow for all services that are affected by a single microservice slow response.

The Status Code:301 is returned.

High polling frequencies waste server resources and network bandwidth.

AJAX requests are sent frequently by users.

When consuming an API synchronously, the client must wait for the server’s response before continuing, so if a single microservice responds slowly, it delays the entire process for all dependent services.

Q21. Refer to the exhibit.

What is the cause of the status of the interface subscription?

The router cannot establish a gRPC connection with the collector.

The sensor-group “Interface-Counters” does not contain a valid YANG path.

The router is waiting for a collector to dial in.

This is the expected state of an active subscription.

Q22. Which data format should be used to serialize structured data in the most compact way?

protobufs

YAML

JSON

XML

Reference:
https://www.sitepoint.com/data-serialization-comparison-json-yaml-bson-messagepack/

Q23. What are two building components for Cisco NFV Infrastructure? (Choose two.)

Agile development processes

virtualized infrastructure

Docker

storage

Cisco VTS

Virtualized infrastructure and storage are key components of Cisco NFV Infrastructure, providing the compute, network, and storage resources required for hosting network functions.

Q24. Which HTTP authentication method transmits user access credentials and encrypts them using Base64?

basic

token

OAuth

digest

The HTTP Basic authentication method transmits user credentials encoded with Base64, but it does not provide true encryption.

Q25. An automation engineer is trying to configure a destination group to use dial-out telemetry with gRPC on a Cisco IOS XR platform. The template created is failing to apply. Which parameters must be configured?

source IP address, source port, encoding, and sampling interval

source IP address, source port, encoding, and protocol

destination IP address, destination port, encoding, and sensor path

destination IP address, destination port, encoding, and protocol

Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b- telemetry-cg-asr9000-61x_chapter_010.html

Q26. An engineer wants to replace the BLOCK_BAD ACL on the Cisco IOS XE router with this new content. The engineer wants to use RESTCONF for this and constructs a PUT request to the resource/restconf/data/native/ip/access-list/Cisco-IOS-XE-acl:extended=BLOCK_BAD. What must the body look like to achieve the Cisco IOS XE configuration?
Desired configutation:
ip access-list extended BLOCK_BAD
permit ip any host 192.168.20.1
deny ip any any
A)

B)

C)

D)

Option A

Option B

Option C

Option D

Q27. An engineer is deploying a Python script to manage network devices through SSH. Which library based on Paramiko is used?

sshmiko

paramiko.agent

libssh2

netmiko

Reference:
https://pynet.twb-tech.com/blog/automation/netmiko.html

Q28. Refer to the exhibit. An engineer must retrieve a list of service instances for a service called svi_verify_example in the environment using NSO RESTCONF with the Base64-encoded string T0S6B0UWa9jmT6QjPk7Nfcn5ZpY2VzY1DH6GRP=. Which line of code must be added to the box where the code is missing to complete the Python request?

‘x-token’: ‘T0S6B0UWa9jmT6QjPk7Nfcn5ZpY2VzY1DH6GRP=’

‘x-token’: ‘Basic T0S6B0UWa9jmT6QjPk7Nfcn5ZpY2VzY1DH6GR=’

‘Authorization’: ‘Bearer T0S6B0UWa9jmT6QjPk7Nfcn5ZpY2VzY1 DH6GRP=’

‘Authorization’: ‘Basic T0S6B0UWa9jmT6QjPk7Nfcn5ZpY2VzY1DH6GRP=’

The correct HTTP header for sending a Base64-encoded authentication string for RESTCONF is
‘Authorization’: ‘Basic <Base64-encoded-string>’.

Q29. Which HTTP authentication mechanism sends user credentials in plaintext?

Basic authentication

Token authentication

OAuth

All of the above

Q30. Refer to the exhibit. What must be added at lines 6 and 15 to check the IP addresses of the interfaces and configure the logging history of a Cisco IOS XR device?

Al line 6, add “device_type”: “iosxr”
At line 15, add output = net_connect.send_command_set([‘logging history size 500’, ‘commit’])

At line 6, add “device_type”: “cisco_xr”
At line 15, add output = net_connect.send_config_sel(‘logging history size 500’, ‘commit’])

At line 6, add “device type”: “cisco xr”
At line 15, add output = net_connect.send_command([‘logging history size 500’, ‘commit’])

At line 6, add “device_type”: “ios_xr”
At line 15, add output = net_connect.send_command([‘logging history size 500’, ‘commit’])

At line 6, “device_type”: “iosxr” specifies the correct Netmiko platform for Cisco IOS XR. At line
15, send_command_set([‘logging history size 500’, ‘commit’]) is used to send configuration commands and commit them on IOS XR devices.

Q31. What are two characteristics of the NFV architecture approach? (Choose two.)

It decouples the network functions from proprietary hardware appliances.

It provides 70% more efficiency of network infrastructure.

It is specially designed for Internet providers.

It is specially designed for telecommunications service providers.

It typically includes a hypervisor.

Reference: https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2016/pdf/LTRSPM-2022.pdf

Q32. What is a key feature of YANG?

use identification

error prediction

JAVA compatibility

reusable types and groupings

Q33. Which statement describes an asynchronous API communication?

Asynchronous communication waits for a response.

Synchronous communication is with a central orchestrator.

It is not necessary to wait for availability of a resource.

An application can freeze if there is no response from a request.

Q34. 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?

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

router ospf 100
network 10.1.1.0 0.0.0.3 area 0

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

router ospf 100 router-id 1.1.1.1

Q35. Which command configures the remote peer when the Cisco IOS XR Traffic Controller is used?

peer-sync ipv4 192.168.0.3

state ipv4 192.168.0.3

peer ipv4 192.168.0.3

state-sync ipv4 192.168.0.3

Q36. What are two benefits of using Cisco NSO? (Choose two.)

It abstracts the device adapter and complex device logic from the service logic.

It uses load balancing services for better traffic distribution.

It easily integrates into northbound systems and APIs.

It can replace the CI/CD pipeline tools.

It automatically discovers all deployed services.

Reference: https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKDCN-2498.pdf

Q37. An engineer wants to replace the BLOCK_BAD ACL on the Cisco IOS XE router with this new content. The engineer wants to use RESTCONF for this and constructs a PUT request to the resource/restconf/data/native/ip/access-list/Cisco-IOS-XE-acl:extended=BLOCK_BAD. What must the body look like to achieve the Cisco IOS XE configuration?
Desired configutation:
ip access-list extended BLOCK_BAD
permit ip any host 192.168.20.1
deny ip any any
A)

B)

C)

D)

Option A

Option B

Option C

Option D

Q38. An engineer needs to configure network devices in an automated way. Which two ways are used to create structured data using YANG to provide REST-like APIs to enable programmability access? (Choose two.)

YAML

JSON

GPB

JSON-RPC

XML

Section: 3.0 Network Device Programmability
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166/ b_166_programmability_cg/restconf_prog_int.pdf

Q39. What is a feature of the Service Manager component of Cisco NSO?

It performs model-to-model mapping of device models to service models.

It validates the device configuration before pushing the change to the network.

It supports the preview of configuration when creating or modifying a service instance.

It stores service input parameters in XML configuration files.

The Service Manager component of Cisco NSO supports the preview of configuration when creating or modifying a service instance, allowing users to see the changes before they are applied.

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