350-901 practice questions 181–190

1. Question 181 · 385 in bank

   DRAG DROP - A developer must package an application for Kubernetes to integrate into a prebuilt CD environment. The application utilizes a Docker image from Cisco DevNet public repository and is accessible from a specific port of the container. Drag and drop the code from the bottom onto the box where the code is missing in the Kubernetes YAML configuration file. Not all options are used.

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   

   Next question

2. Question 182 · 385 in bank

   

   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?

   • Aif r.raise_for_status() == 401
   • Bif r.raise_for_status() == 403
   • Cif r.status_code == 403
   • Dif r.status_code == 401

   Show answer

   Answer: C

   Next question

3. Question 183 · 385 in bank

   

   Refer to the exhibit. A network engineer developed an Ansible playbook and committed it to GitLab. A GitLab CI pipeline is started but immediately fails. What is the issue?

   • AThe runner is running the wrong Docker version.
   • BThe Ansible playbook has an undefined variable.
   • CThe runner task uses an incorrect parameter.
   • DThe Ansible playbook task has a formatting issue.

   Show answer

   Answer: D

   Next question

4. Question 184 · 385 in bank

   

   Refer to the exhibit. Which code snippet must be added to the blank in the code to automate the evaluation and handling of errors due to wrong credentials when Basic Authorization is used?

   • Awhile response.status_code == 401 :
   • Bwhile response.status_code == 403 :
   • Cwhile response.get.status_code == 400 :
   • Dwhile response.get.status_code == 404 :

   Show answer

   Answer: A

   Explanation

   403 Forbidden means that the user has logged in with the correct, valid credentials, but is not allowed to access whatever they are attempting to access. 401 Unauthorized means that their credentials are invalid, which is the trigger for the error message you are attempting to generate in the exhibit code snippet.

   Source: Adapted from community discussion — kirrim

   Next question

5. Question 185 · 385 in bank

   

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

   • Aint(self.response.headers.post('Retry-After'))
   • Bint(self.response.headers.get('Retry-After'))
   • Cint(response.headers.post('Retry-After'))
   • Dint(response.headers.get('Retry-After'))

   Show answer

   Answer: B

   Next question

6. Question 186 · 385 in bank

   

   Refer to the exhibit. A developer runs the docker service scale command to increase the number of replicas for the cisco_devnet service. The swarm cluster is using a private IP address subnet. The service has these design requirements: • It must be hosted behind a virtual IP address that is reachable from the Internet. • For security reasons, the Docker swarm cluster subnet must not be reachable from the Internet. Which design approach is used to fulfil the requirements?

   • AConfigure an external load balancer to route requests to the swarm service by using NAT.
   • BCreate an overlay network by using a globally routable subnet and enable a routing mesh within the swarm cluster.
   • CCreate a bridge network by using a globally routable subnet and enable a routing mesh within the swarm cluster.
   • DConfigure an external load balancer to route requests to the swarm service by using VPN.

   Show answer

   Answer: A

   Explanation

   The correct answer is (A). The design approach that fulfills the requirements is to configure an external load balancer to route requests to the swarm service by using NAT. This will allow the service to be hosted behind a virtual IP address that is reachable from the Internet, while keeping the Docker swarm cluster subnet unreachable from the Internet. The other options are incorrect. Option (B) would allow the Docker swarm cluster subnet to be reachable from the Internet, which is not allowed by the security requirements. Option (C) would also allow the Docker swarm cluster subnet to be reachable from the Internet, which is not allowed by the security requirements. Option (D) would use VPN to route requests to the swarm service, but this would not allow the service to be hosted behind a virtual IP address.

   Source: Adapted from community discussion — johntermlen

   Next question

7. Question 187 · 385 in bank

   Select 2

   

   Refer to the exhibits. An application is developed to perform multiple API calls. The calls will be performed on the infrastructure devices. Delays in the information transfer occur when the application is executed. What are two reasons for the issue? (Choose two.)

   

   • AThe list devices API call is failing and does not return a result.
   • BThe requests are being rate limited to prevent multiple calls causing the excessive load.
   • COne of the API calls takes roughly three times as long to complete.
   • DListing devices takes longer than usual due to high network latency.
   • EThe list devices API call is inefficient and should be refactored.

   Show answer

   Answer: BC

   Explanation

   The two most likely reasons for the delays in the application's API calls are: B. The requests are being rate limited to prevent multiple calls causing the excessive load. - Rate limiting slows down requests to manage server load, causing delays. C. One of the API calls takes roughly three times as long to complete.** - A specific API call taking significantly longer can create a bottleneck, leading to delays. Thus, the correct answers are B and C

   Source: Adapted from community discussion — [Removed]

   Next question

8. Question 188 · 385 in bank

   A developer must meet these requirements: • Support the provisioning of up to 500 new virtual machines into private data centers or the public cloud. • Ensure that the configuration of 400 existing virtual machines is kept in sync and can be updated on-demand. • Support specifying a list of instructions or steps that must be performed in a precise order to configure a virtual machine. Which configuration management solution must the developer use?

   • AAnsible
   • BDocker
   • CPuppet
   • DTerraform

   Show answer

   Answer: A

   Explanation

   I'll go with A. C. Puppet is a configuration management tool that automates the management of infrastructure. It allows management of existing virtual machines and provisioning of new virtual machines but does not have the capability to support specifying a list of instructions or steps that must be performed in a precise order to configure a virtual machine. D. Terraform is an infrastructure as code tool that allows to provision, manage and version infrastructure across public clouds and on-premise. It does not have the capability to keep the configuration of existing virtual machines in sync and can be updated on-demand

   Source: Adapted from community discussion — [Removed]

   Next question

9. Question 189 · 385 in bank

   

   Refer to the exhibit. An application is being developed as an information repository. The application will be used to store details about television shows, including the scenario, year, and category. Which database type must be used for high performance for the data structure?

   • Atime series
   • Bcolumnar
   • Cdocument-based
   • Dgraph

   Show answer

   Answer: C

   Explanation

   Let's explore why the other options are not the best choices: A. Time Series: Time series databases are optimized for storing and analyzing time-based data. While some shows might have release dates, the overall structure doesn't heavily rely on time-based elements. C. Document-based: Document databases are flexible for storing various data formats, but they might not offer the same level of performance as columnar databases for querying specific fields in a structured dataset. D. Graph: Graph databases are powerful for representing relationships between entities. While there could be connections between shows (e.g., sequels), the primary focus here seems to be storing individual show information, making a columnar database a more suitable choice.

   Source: Adapted from community discussion — luckymuki

   Next question

10. Question 190 · 385 in bank

    DRAG DROP - Drag and drop the code from the bottom onto the box where the code is missing to construct an Ansible task to configure and enable a list of features on one or more Cisco Nexus switches. Not all options are used.

    

    This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

    Show the answer figure

    Answer: See figure below

    References

    • cisco.com documentation

    

    Next question

Keyboard:J Kmove between questionsA–Dselect an answerRshow or hide the answer← →change page

350-901 practice, question 181. 385 questions available.