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Cisco 350-901 - Developing Applications using Cisco Core Platforms and APIs (DEVCOR)

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Total 363 questions

A developer is working on a new feature in a branch named 'newfeay000222118' and the current working primary branch is named 'pnm409024967' The developer requires a merge commit during a fast forward merge for record-keeping purposes. Which Git command must Be used?

A)

B)

C)

D)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

What securely stores and encrypts the API keys and tokens that are used for an application deployment?

A.

ITSM

B.

Artifactory

C.

GitHub

D.

Vault

Refer to the exhibit.

Which line of code needs to be placed on the snippet where the code is missing to provide APl rate-limiting to the requests?

A.

int(self.response.headers.post('Retry-After'))

B.

int(response.headers.get('Retry-After'))

C.

int(self.response.headers.get(Retry-After'))

D.

int(response.headers.post('Retry-After'))

What is a benefit of running multiple instances of a back-end service and using load balancing to distribute the communication between the front-end and back-end services?

A.

The consistency of data for stateful services increases.

B.

High availability is provided for the back-end services.

C.

Scaling horizontally is automated out of the box.

D.

The total load on the database servers decreases.

Drag and drop the code from the bottom onto the box where the code is missing in the Python code to query for user permissions while mitigating against SQL Injection Not all options are used.

Refer to the exhibit.

A Docker swarm cluster is configured to load balance services across data centers in three different geographical regions west central and east. The cluster has three manager nodes and three worker nodes Anew service named cisco.devnet is being deployed. The service has these design requirements

• All containers must be hosted only on nodes in the central region

• The service must run only on nodes that are ineligible for the manager role

Which approach fulfills the requirements?

A.

Create a second swarm cluster that is hosted only in the central region.

B.

Create the service manually in the central region and set replicas to 0.

C.

Use placement constraints to control nodes to which the service can be assigned.

D.

Enable the control flag in the containers of the west and east regions to prevent the service from starting

A developer has just completed the configuration of an API that connects sensitive internal systems. Based on company policies, the security of the data is a high priority.

Which approach must be taken to secure API keys and passwords?

A.

Embed them directly in the code.

B.

Store them in a hidden file.

C.

Store them inside the source tree of the application.

D.

Change them periodically.

Drag and drop the code from the bottom onto the box where the code is missing to stop the REST API requests if a 'Too Many Requests" response is received Not all options are used.

An architect must optimize traffic that targets a popular API endpoint Currently, the application downloads a large file hourly, but often the file is unchanged and the download causes unnecessary load and delays Which cURL command must be used to determine the last modified date of the file and to optimize the API usage?

A.

curl GET request

B.

curl HEAD request

C.

curl --silent request

D.

curl -H 'Cache-Control: no-cache' request

Refer to the exhibit.

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the exhibit to complete the script to implement control flow.