Cisco Cisco Certified DevNet Professional 350-901 Questions & Answers

• Question 171:

  Refer to the exhibit.

  

  A. B. C. D.

  Correct Answer: A

• Question 172:

  Which transport protocol is used by gNMI?

  A. HTTP/2

  B. HTTP 1.1

  C. SSH

  D. MQTT

  Correct Answer: A

• Question 173:

  A developer is working on a live project and must apply a new feature. After the commit,the manager informs the team that the wrong file was applied. The developer must undo the single commit and apply the file with the name feature-AppUXU1411841916ADD.

  Which command must the developer use?

  A. git revert

  B. git checkout

  C. git clean

  D. git reset

  Correct Answer: C

• Question 174:

  

  Refer to the exhibit A script returns the location of a specific access point when given the access point name If a user enters a search value such as DROP TABLE access points then the entire table is removed. What must be added to the box where the code is missing to prevent a SQL injection attack?

  

  A. B. C. D.

  Correct Answer: D

• Question 175:

  A developer must create VLANs 2-5 on a remote Cisco NX-OS switch by using an Ansible playbook The playbook must meet these requirements

  Configure the VLANs and a name for each VLAN Only run against the switches inventory group Execute from the local Ansible controller Prevent the collection of system information prior to execution

  Which playbook must be used?

  

  A. B. C. D.

  Correct Answer: A

• Question 176:

  What is submitted when an SSL certificate is requested?

  A. PEM

  B. CRT

  C. DER

  D. CSR

  Correct Answer: D

• Question 177:

  What are two methods for sending bearer access tokens in resource requests to servers? (Choose two)

  A. in plaintext for user access

  B. in the HTTP API schema

  C. in the HTTP request entity-body

  D. in the "Authorization" request header field

  E. in the HTTP request URI

  Correct Answer: CD

• Question 178:

  What is a benefit of using model-driven telemetry?

  A. enables operational data to be collected at higher rates and a higher scale

  B. enables the application to pull data faster than pushing the data

  C. reduces the load on the server by enabling the client to pull data

  D. simplifies the development of clients by using a single encoding standard for the data

  Correct Answer: D

• Question 179:

  The response from a server includes the header ETag:

  W/"7eb8b94419e371767916ef13e0d6e63d".

  Which statement is true?

  A. The ETag has a Strong validator directive.

  B. The ETag has a Weak validator directive, which is an optional directive.

  C. The ETag has a Weak validator directive, which is a mandatory directive.

  D. The ETag has a Strong validator directive, which it is incorrectly formatted.

  Correct Answer: B

  https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag The ETag HTTP response header is an identifier for a specific version of a resource. It lets caches be more efficient and save bandwidth, as a web server does not need to

  resend a full response if the content has not changed. Additionally, etags help prevent simultaneous updates of a resource from overwriting each other Syntax:

  ETag: W/""

  Directives:

  W/ ( Optional)

  'W/' (case-sensitive) indicates that a weak validator is used. Weak etags are easy to generate, but are far less useful for comparisons.

  ""

  Entity tag uniquely representing the requested resource. They are a string of ASCII characters placed between double quotes, like "675af34563dc-tr34"

• Question 180:

  Meraki Dashboard API Response

  Response Status Code200

  Response Link Header

  ; rel-first,

  ; rel-next,

  ; rel-last Response Body

  {

  ' name": \\II '

  "serial": "Q2CV-V49B -RCMZ",

  "mac": ''0c:8d:db:95:aa:39",

  "networkid": "L-566327653141846927",

  "model11 : "MV71",

  "address": "430 E Cactus Ave .\nLas Vegas, NV 89183",

  "lat": 36.00017,

  "lng": -115.15302,

  "notes": ''",

  "tagsn: '",,

  "lanip: "192.168.0.25",

  ' configurationUpdatedAt": "2019-08-08T02:15:36Z", ' firmware11 : "ca.rnera-3-3011

  },

  {

  "ncune": "Alex's MR84 - 1"1

  "serial": "Q2EK-2LYB-PCZP",

  "mac": 'eO: 55:3d:10:56:8a", "networkid": "L 566327653141846927",

  "model": "MR84",

  "address": ''11 ,

  "lat": 39.9482993357826,

  "lng": -82.9895675461739,

  "notes": "",

  "tags": ' ",

  "lanip: null,

  "configurationVpdatedAt": "2018-02-03Tll:02:37Z",

  "firmware11 : "Not running configured version''

  },

  {

  "na.rne11 : "Vegas Living Room MR84 11 ,

  "serial": "Q2EK-3UBE-RRUY",

  "mac": "e0:55:3d:10:5a:ca", "networkid": "L_566327653141846927" 1

  "model": "MR84",

  "address": "430 E Cactus Ave.\nLas vegas, NV 89183", "lat": 36.00015,

  "lng": -115.15308,

  "notes": ' ", "tags": "11 "lanip: "192.168.0 .20",

  "configurationVpdatedAt": "2018-09-29Tl2:23:21Z",

  ' firmware": "Not running configured version"

  Refer to the exhibit.

  

  Which line of code must be added to this code snippet to allow an application to pull the next set of paginated items?

  A. requests.get(url, links=[`next'][`url'])

  B. requests.get(url, headers=links[`next'][`url'])

  C. requests.get(res.links[`next'][`url'], headers=headers)

  D. requests.get(res.headers.get(`Link")[`next'][`url'], headers=headers)

  Correct Answer: C