Cisco Certified DevNet Associate Certification Program 200-901 DEVASC Test Questions

Regina2021-07-17T01:47:21+00:00

200-901 Developing Applications and Automating Workflows using Cisco Core Platforms (DEVASC) exam is the requirement of Cisco Certified DevNet Associate Certification. The DevNet Associate certification is your entry into a career in network automation, which validates your ability to implement basic network applications using Cisco platforms as a base, and to implement automation workflows across network, security, collaboration, and computing infrastructure. Come to get the real 200-901 DEVASC test questions as the preparation materials to complete the Cisco Certified DevNet Associate certification.

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1. How is a branch called "my-bug-fix" started to develop a fix needed in a product?

git branch -b my-bug-fix

git checkout -b my-bug-fix

git checkout my-bug-fix

git branch my-bug-fix

2. On which network plane is routing protocol traffic handled?

data plane

management plane

authentication plane

control plane

3. CORRECT TEXT

Refer to the exhibit.

Fill in the blanks to complete the cURL command to the list of networks in the Meraki organization with an id of 384279060

4. Which Cisco DevNet resource allows access to products in a development lab to explore, learn, and build application that use Cisco APLs?

DevNet communities

DevNet code Exchange

DevNet Automation Exchange

DevNet sandbox

5. In the test-driven development model, what is changed after a test fails?

test

schedule

project requirements

code

6. Which protocol runs over TCP port 22?

SSH

HTTP

Telnet

NETCONF

7. How does requesting a synchronous API operation differ from requesting an asynchronous API operation?

clients poll for the status of the execution of operations

clients subscribe to a webhook for operation results

clients can access the results immediately

clients receive responses with a task id for further processing

8. Which two query types does a client make to a DNS server? (Choose Two)

AAAA

ACK

DISCOVER

Inverse

PTR

9. What is the purpose of a MAC address?

To uniquely identify a router in a LAN

To uniquely identify a network interface in a LAN

To uniquely identify a device on the internet

To uniquely identify a switch in a LAN

10. Refer to the exhibit.

Which two statement describe the configuration of the Ansible script is run? (Choose two.)

Traffic on port 0/2 and 0/3 is connected to port 0/6.

Traffic from ports 0/2 to 0/5 can flow on port 0/1 due to the trunk.

Traffic can flow between ports 0/2 to 0/5 due to the trunk on port 0/1.

GigabitEthernet0/2 and GigabitEthernet0/3 are access ports for VLAN 6.

GiabitEthernet0/1 is left unconfigured.

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11. Refer to the exhibit.

The script returns an output of 401. To use the supplied URL. an HTTP GET request must Be sent with an Authorization header. The header value is a BaseG4 encoded concatenation of the username and password.

Which action must be taken to return an output of 200?

Change the verify=False setting in the request to verify=True to enable HTTP Basic authentication

Modify the method from LOGIN to GET and supply the username ;password value as JSON payload

Verify that the username and password values imported from the configuration file ate still valid.

Insert an Authorization header with the values username password from the supplied configuration file.

12. How does a synchronous API request differ from an asynchronous API request?

clients receive responses with a task id for further processing

clients subscribe to a webhook for operation results

clients are able to access the results immediately

clients poll for the status of the execution of operations

13. What are two functions of a routing table on a network device? (Choose two.)

It lists entries more than two hops away.

It lists the routes to a particular destination.

It lists the routes to drop traffic.

It lists hosts that are one hop away.

It lists the static and dynamic entries.

14. Which type of HTTP method is used by the Meraki nad webex teams APIs to send webhook notifications?

HTTP GET

HTTP PUT

HTTP HEAD

HTTP POST

15. Refer to the exhibit.

An API call is constructed to retrieve the inventory in XML format by using the API. The response to the call is 401 Unauthorized.

Which two headers must be added to the API call? (Choose two.)

Option A

Option B

Option C

Option D

Option E

16. DRAG DROP

Refer to the exhibit.

Drag and drop the code from the bottom onto the blanks in the code to construct a cURL command using the Cisco DNA Center API. which will provide the details of a WLAN controller with Id af397748444. Not at options are used.

17. Which detail is included in a routing table?

IP protocol

Broadcast address

TCP or UDP port number

Destination next hop or outgoing interface

18. A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly.

Which action organizes the code?

Refactor the code by removing any unnecessary tests

Using functions, rewrite any pieces of code that are repeated

Reverse engineer and rewrite the code logic

Modify the code to use loops

19. What operation is performed with YANG model-driven programmability in NX-OS?

configure a device with native and OpenConfig-based models

send CLI commands to a device and retrieve output in JSON format

run Linux commands natively on the device

bootstrap a device that has a factory-default configuration

20. What is the purpose of the first three pairs of digits in a MAC address?

defines a routing identifier for the client

indicates the IP address of the client in Hex

defines packet forwarding priority sent or received by the adapter

indicates vendor of the network card or adapter

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21. Which two descriptions can be given to an application that is interacting with a webhook? (Choose two.)

Processor

Codec

Listener

Receiver

Transaction monitor

22. DRAG DROP

Refer to the exhibit.

Drag and drop the descriptors from the left onto the correct parts of the API request and response on the right.

23. A developer needs to prepare the file README.md in the working tree for the next commit operation using Git.

Which command needs to be used to accomplish this?

git add READM

md staging

git -a READM

git add READM

git commit READM

24. Refer to the exhibit.

Which infrastructure automation method is shown?

Waterfall

CI/CD pipeline

Agile

Lean

25. A developer creates a script that configured multiple Cisco IOS XE devices in a corporate infrastructure. The internal test environment is unavailable, and no maintenance window is available to test on a low-priority production environment.

Which resource is used to test the code before it is applied to the production environment?

Code Exchange

Cisco DevNet Learning Labs

Cisco DevNet Sandbox

Cisco Support

26. Refer to the exhibit.

A developer creates a Python script that queries Cisco Webex. When the script is executed, a 401 code is returned. After troubleshooting, the developer discovers that the service is missing privileges.

Which change to the header in line 4 of the script results in the code 200?

A)

Option A

Option B

Option C

Option D

27. What is a tenet of test-driven development?

write documentation for tests

write tests after adding new blocks of code

write and run tests before writing new code

run tests after writing new code

28. Which data is specified in the response header?

{ "id": "y123987jdkl". HTTP/1.1 200 OK "status: "online", "type": "switch" }

HTTP/1.1 200 OK

''type'', ''switch''

Content-Type

29. Which device is a system that monitors and controls incoming and outgoing network traffic based on predetermined security rules?

Switch

Router

Firewall

Load balancer

30. Refer to the exhibit.

Given the API documentation for the UCS SDK python class, UcsHandle, which code snippet creates a handle instance?

A)

Option A

Option B

Option C

Option D

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31. DRAG DROP

Refer to the exhibit.

Drag and drop the code from the left code from the left onto the item number on the right to complete the Meraki code to obtain a list of client which have used this network.

32. CORRECT TEXT

Fill in the blanks to complete the statement.

Given a username of “devnet” And a password “Cisco123”, applications must create a base64 encoding of the string” ____________ ” when sanding HTTP requests to an API that uses _______________ authentication.

33. In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?

AAA

SOA

CNAME

34. Which mechanism is used to consume a RESTful API design when large amounts of data are returned?

Data sets

Scrolling

Blobs

Pagination

35. On which port does NETCONF operate by default?

443

822

830

36. What is the function of IP address in networking?

specifies the type of traffic that is allowed to roam on a network

represents the unique ID that is assigned to one host on a network

specifies resource's location and the mechanism to retrieve it

represents a network connection on specific devices

37. Which status code is used by a REST API to indicate that the submitted payload is incorrect?

400

403

405

429

38. Which type of threat occur when an attacker can send hostile data to an interpreter within an application?

Cross-site scripting

Sensitive data exposure

Broken authentication

Injection

39. Refer to the exhibit.

The documentation outlines how to use credentials for the AMP API Which script successfully performs an API call using basic authentication?

A)

Option

40. What are two characteristics of Bare Metal environments that are related to application deployment? (Choose two.)

Provide the hypervisor to host virtual servers

Specifically designed for container-based workloads.

Provides workloads with access to hardware features

Suitable for legacy application that do not support virtualization

Not compatible with other cloud services such as PaaS or SaaS offerings.

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41. A function my_func() returns True when it executes normally.

Which python snippet tests my_func()?

A)

Option A

Option B

Option C

Option D

42. Which service provides a directory lookup for IP addresses and host names?

DNS

DHCP

SNMP

NAT

43. DRAG DROP

Drag and drop the element of the Finesse API on the left onto the description of its functionally on the right.

44. DRAG DROP

Drag and Drop the Bash commands from the left onto the correct actions on the right.

45. What is a benefit of organizing code into modules?

improves overall performance

reduces the length of code

enables code to be multifunctional

enables the reuse of code

46. What are two benefit of managing network configuration via APIs? (Choose two.)

configuration on devices becomes less complex

more security due to locking out manual device configuration

increased scalability and consistency of network changes

eliminates the need of legacy management protocols like SNMP

reduction in network changes performed manually

47. What are two benefits of model-driven programmability?

model-driven APIs for abstraction and simplification

single choice of transport, protocol, and encoding

model-based, structured, and human friendly

easier to design, deploy, and manage APIs

models decoupled from transport, protocol, and encoding

48. Which HTTP response code should be returned when the request is completed, but there is no content to send for the request?

100

204

302

402

49. Which two statement describe the role of an artifact repository in a CI/CD pipeline?

(Choose two.)

An artifact repository allows to compare and merge changes in the source code of files involved in a build process.

An artifact repository is needed only for CI/CD pipeline executed on a public cloud infrastructure.

An artifact repository provides traceability, search, and management of binary files.

An artifact repository is needed only for managing open source software.

An artifact repository stores files needed and generated during the build process.

50. Which API must an engineer use to change a netmask on a Cisco IOS XE device?

Meraki

RESTCONF/YANG

SD-WAN

DNAC

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51. Refer to the exhibit.

Which command needs to be placed on the box where the code is missing to output the value of page_jd in the Python 3.7 script?

A)

Option A

Option B

Option C

Option D

52. Which statement about authentication a RESTCONF API session with a router that runs Cisco IOS XE software is true?

OAuth must be used.

A token must be retrieved and the associated string must be embedded in the X-Auth-Token header.

Basic authentication must be used.

No authentication is required.

53. A developer is writing an application that a REST API and the application requires a valid from the API which element of the response is used in the conditional check?

URL

Status code

Link

Body

Headers

54. DRAG DROP

Drag and Drop the GIT commands from the left onto the right that add modified local files to a remote repository. Not all options are used

55. What is the purpose of the Cisco VIRL software tool?

To verify configurations against compliance standards

To simulate and model networks

To automate API workflows

To test performance of an application

56. What is a requirement when authenticating a RESTCONF API session with a router that runs Cisco IOS XE Software?

No authentication is required.

OAuth must be used.

Basic authentication must be used.

A token must be retrieved and the associated string must be embedded in the X-Auth-Token header.

57. Refer to the exhibit.

Which device limits traffic between server 1 and server 2?

Device B

Device C

Device D

Device E

58. Refer to the exhibit.

What does the load balancer enable in the network topology?

hosted application to access Internet services

external requests to be routed to the application servers

workstations to access the Internet

application to access the database server

59. Refer to the exhibit.

A process on the host wants to access the service running inside this Docker container.

Which port is used to make a connection?

only outbound connections between 3000 and 5000 are possible

port 3000

any port between 3000 and 5000

port 5000

60. DRAG DROP

Drag and drop the HTTP status codes from the left onto the correct descriptions on the right.