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

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.

Which security approach should be used for developing a REST API?

An engineer is developing a web-based application that will be used as a central repository for the HR department The application needs to authenticate user access and encrypt communication. Drag and drop the steps from the left into the order on the right to install an application-specific SSL certificate.

A new record-keeping application for employees to track customer orders must be deployed to a company's existing infrastructure. The host servers reside in a data center in a different country to where the majority of users work. The new network configuration for the database server is: •IP: 10.8.32.10

• Subnet Mask: 255.255.255.0

• Hostname: CustOrd423320458-Prod-010

• MAC: 18-46-AC-6F-F4-52.

The performance of the client-side application is a priority due to the high demand placed on it by employees. Which area should the team consider in terms of impact to application performance due to the planned deployment?

Refer to the exhibit.

A network engineer created a simple Python Flask application but must incorporate a CSRF token. Which code snippet must be added in the blank in the script to manually incorporate the token?

Refer to the exhibit.

The YAML represented is using the ios_vrf module. As part of the Ansible playbook workflow, what is the result when this task is run?

Refer to the exhibit.

Which set of API requests must be executed by a Webex Teams bot after receiving a webhook callback to process messages in a room and reply with a new message back to the same room?

What is the gRPC Network Management Interface protocol?

Refer to the exhibit. A developer wants to automatically deploy infrastructure for a containerized application. A .gitlab-ci.yml file must describe a pipeline that builds a container based on a supplied Dockerfile and executes an Ansible playbook on the configured container. What must be added where the code S missing to complete the script?

A)

B)

C)

D)

Refer to the exhibit. The self-service Webex Teams bot is failing when many users attempt to interact with it at the same time. Drag and drop the code snippets from the left onto the correct item numbers on the right that match the missing sections in the exhibit to complete this code to handle this high-load situation.

While working with the Webex Teams API, on an application that uses end-to-end encryption, a webhook has

been received. What must be considered to read the message?

A developer deploys a web application in a local data center that is now experiencing high traffic load from users accessing data through REST API calls. Which approach enhances the responsiveness and performance of the API?

Refer to the exhibit.

An application's REST API GET call is tested to the inventory database. Which missing code must be included to limit

the number of values that are returned from the query to 20?

Which two strategies are used to protect personally identifiable information? (Choose two.)

Refer to the exhibit. The JSON response is received from the Meraki location API. Which parameter is missing?

Drag and drop the steps from the left into the order on the right to configure and install a container on a Cisco Catalyst 9000 Series Switch.

Refer to the exhibit.

An engineer is managing a network that consists of Cisco IOSXE devices. There is a need to retrieve the details of the interface GigabitEthernet2 using RESTCONF. Which URI will accomplish this by providing the same response as shown in the JSON body?

A)

B)

C)

D)

Refer to the exhibit.

Which two functions are performed by the load balancer when it handles traffic originating from the Internet destined to an application hosted on the file server farm? (Choose two.)

Refer to the exhibit.

Drag and drop the code from the bottom onto the box where the code is missing to construct a Python script that will retrieve location data Not all options are used.

Refer to the exhibit.

Drag and drop the components from the Oauth2 authorization protocol flow on the left onto the letter that matches the location in the exhibit.

The Meraki API URL https://api.meraki.com/api/v0/networks/123456789/ssids/2 has been stored in the environment variable meraki_url and the API key has been stored in meraki_api_key. Which snippet presents the API call to configure, secure and enable an SSID using the Meraki API?

A)

B)

C)

D)

An organization manages a large cloud-deployed application that employs a microservices architecture. No notable issues occur with downtime because the services of this application are redundantly deployed over three or more data center regions. However, several times a week reports are received about application slowness. The container orchestration logs show faults in a variety of containers that cause them to fail and then spin up brand new.

Which action must be taken to improve the resiliency design of the application while maintaining current scale?

Drag and drop the code snippets from the bottom onto the boxes where the code is missing to deploy three Cisco UCS servers each from a different template Not all options ate used.

Two Elasticsearch database servers use bidirectional asynchronous data replication Both servers accept writes from clients The design must meet these requirements:

• The cluster must survive if a fault occurs that causes the network connection to go down between nodes

• The data must remain consistent if communication between nodes fails.

• The data must be spread evenly across all nodes in the cluster.

Which design approach must be used to meet the requirements?

Drag and drop the code onto the snippet to update a SSID in Meraki using the Dashboard API. Not all options are used.

Drag and drop the code from the bottom onto the box where the code is missing to create a Webex space Not all options are used.

Drag and drop the code from the bottom onto the box where the code is missing on the Ansible task to enable a VLAN on a Meraki MX Device, Not all options are used.

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?

Refer to the exhibit.

Refer to the exhibit A Docker swarm service is currently running m a local data center The service is hosting an HTML website it the container fads then the service becomes unavailable The design must meet these requirements

• The service must be highly available and resilient against a data center outage.

• The service must be accessible from a single URL

• The HTTP session must remain on the server from which the original request was sent

• Failure of the server must force the client to reconnect

Which two design approaches must be used to meet the requirements? (Choose two.)

Which transport protocol is used by gNMI?

Drag and drop the operations from the left into the order on the right to create a web dashboard that displays Cisco DNA Center data for an organization.

Refer to the exhibits. Which data payload completes the CURL command to run the create port object API call In Cisco Firepower Threat Defense?

Refer to the exhibits. Which data payload completes the CURL command to run the create port object API call In Cisco Firepower Threat Defense?

A)

B)

C)

D)

Refer to the exhibit.

A developer created the code, but it fails to execute. Which code snippet helps to identify the issue?

Which Git command enables the developer to revert back to f414f31 commit to discard changes in the current working tree?

Which two data encoding techniques are supported by gRPC? (Choose two.)

A web application is being developed to provide online sales to a retailer. The customers will need to use their username and passwords to login into then profile and complete their order For this reason the application must store user passwords Which approach ensures that an attacker wifi need to crack the passwords one at a time?

Refer to the exhibit. A Python API server has been deployed. Based on metrics and logs, increased load has been noticed. Which two approaches must be taken to optimize API usage on the server? (Choose two.)

Refer to the exhibit.

A network engineer needs to handle API errors in their requests when users do not have permission to access the resource, even if they are authenticated and authorized. Which line of code needs to be placed on the snippet where the code is missing to handle these API errors?

A developer in a learn of distributed authors is working on code in an isolated Git branch named 'update4a2f5464771 The developer attempts to merge the new code with a branch named ’dvcapp2a3f1564733' however the merge operation encounters a conflict error during the process. Which Git command must the developer use to exit from the merge process and return the branch to the previous state?

Refer to the exhibit.

An attempt to execute a CI/CD pipeline results m the error shown What is the cause of the error?

An application is being built to collect and display telemetry streaming data. Drag and drop the elements of this stack from the left onto the correct element functions on the right.

A developer is working in a branch to develop a new feature named ‘newfeat404880077’. A file named ‘devcoreg13642911.jpg’ has accidentally been staged. This needs to be removed so that the commit is performed and branches merged. Which git command must be used to unstage the file?

Drag and drop the steps on the left into the order on the right for an end-user to access an OAuth2 protected resource using the Authorization Code Grant1 flow.

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An engineer is managing a DC with 6000 Cisco UCS servers installed and running. The engineer has been asked to identify all resources where the model is in the UCSB family and the available memory is less than or equal to 5 GB.

Which REST API call accomplishes this task?

Refer to the exhibit.

A network engineer must integrate error handling tor time-outs on network devices using the REST interface. Which line of code needs to be placed on the snippet where the code is missing to accomplish this task?

Which data encoding format uses gRPC by default for serializing structured sets of information?

Drag and drop the code from the bottom onto the where the code is missing to create a host object by using the Cisco Firepower Device Manager API. Not all options are used.

An Etag header is included in the HTTP response for an API resource. What are two benefits of using the value of the Etag for future interactions involving the same API resource? (Choose two.)

Which two statements describe advantages of static code analysis over unit tests? (Choose two.)

Refer to the exhibit.

A)

B)

C)

D)

A developer is creating a Python function that adds network engineers to a Webex room to troubleshoot after a monitoring alert Drag and drop the code from the bottom onto the box where the code is missing in the Python function to add the engineers to the room. Not all options are used.