Últimas preguntas del examen 350-901 Devcor: buenos consejos para aprobar el examen Cisco 350-901

1. Refer to the exhibit.





A kubeconfig file to manage access to clusters is provided.

How many clusters are defined and which of them are accessed using username/password authentication versus certificate?

2. DRAG DROP

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 cURL exhibit to complete the cURL request to FirePower Device Manager API to create objects. Not all code snippets are used.

3. Refer to the exhibit.





An application uses an API to periodically sync a large data set.

Based on the HTTP message sequence provided, which statements are true about the caching behavior seen in the scenario? (Choose two.)

4. Refer to the exhibit.





A developer created the code, but it fails to execute.

Which code snippet helps to identify the issue?

A)





B)





C)





D)

5. 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.)

6. DRAG DROP













Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question.

Drag and drop the correct code snippets from the left onto the item numbers on the right that match the missing sections in the exhibit to complete the cURL script that will use RESTCONF to update an interface on a CISCO IOS XE device.

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

8. Refer to the exhibit.





The Ansible playbook is using the netconf_module to configure an interface using a YANG model.

As part of this workflow, which YANG models augment the interface?

9. DRAG DROP

A developer is creating a Python script to use the Webex Teams REST API to list joined spaces, and gracefully handle and print the errors it receives.





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.

10. AppGigabitEthernet interface is used as data port for a container on a Cisco Catalyst 9000 Series Switch.

Which two interface configuration options should be used? (Choose two.)

11. DRAG DROP

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

12. DRAG DROP

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.

13. Where should distributed load balancing occur in a horizontally scalable architecture?

14. A web application is susceptible to cross-site scripting.

Which two methods allow this issue to be mitigated? (Choose two.)

15. Refer to the exhibit.





What is the output of this IOS-XE configuration program?

16. Which two methods are API security best practices? (Choose two.)

17. DRAG DROP

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.

18. FILL BLANK

Fill in the blanks to complete the Python script to enable the SSID with a name of “371767916” in the network resource “11111111” using the Meraki Dashboard API.

19. Refer to the exhibit.





Which additional line results in the output of Test 1 upon execution of the docker run --rm devnet 1 command in a Dockerfile with this content?

20. DRAG DROP

Refer to the exhibit.





A developer is creating a Python script to use the Webex Teams REST API to list joined spaces, retry after the server-specified amount of time if a “Too many requests” response is received, and print any other error that is received.

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. Not all code snippets are used.

21. Which database type should be used to store data received from model-driven telemetry?

22. 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?

23. DRAG DROP

Refer to the exhibit.





Drag and drop the steps from the left into the correct order of operation on the right for a successful OAuth2 three-legged authorization code grant flow.

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

25. Which two types of storage are supported for app hosting on a Cisco Catalyst 9000 Series Switch? (Choose two.)

26. DRAG DROP

Refer to the exhibit.





Drag and drop the correct parts of the Dockerfile from the left onto the item numbers on the right that match the missing sections in the exhibit to complete the Dockerfile to successfully build and deploy a container running a Python application. Not all parts of the Dockerfile are used.

27. The response from a server includes the header ETag: W/”7eb8b94419e371767916ef13e0d6e63d”.

Which statement is true?

28. A cloud native project is being worked on in which all source code and dependencies are written in Python, Ruby, and/or JavaScipt. A change in code triggers a notification to the CI/CD tool to run the CI/CD pipeline.

Which step should be omitted from the pipeline?

29. The UCS Python SDK includes modules for Service Profile template creation.

Which two UCS Service Profile template types are supported? (Choose two.)

30. DRAG DROP













Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question. Python code that uses the UCS Python SDK is instantiating a service profile named ''devcore-server-01'' from service profile template ''device-template'' , then associating the service profile instance to blade 3 in chassis 7.

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the Python exhibit.

31. DRAG DROP

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.

32. Refer to the exhibit.





As part of the Ansible playbook workflow, several new interfaces are being configured using the netconf_config module. The task references the interface variables that are unique per device.

In which directory is the YAML file with these variables found?

33. Refer to the exhibit.





Which code snippet is required in the headers to successfully authorize wireless information from Cisco DNA Center?

34. 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?

A)





B)





C)





D)

35. DRAG DROP

Refer to the exhibit.





Python threading allows a developer to have different parts of a program run concurrently and simplify a design.

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 create a thread instance.

36. Refer to the exhibit.





Two editors are concurrently updating an article’s headline from their mobile devices.

What results from this scenario based on this REST API sequence?

37. DRAG DROP

























Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question. Python code using the UCS Python SDK is creating a server pool named “devcore_pool” and populating the pool with all servers from chassis 7 and then the server pool is associated to existing service profile template “devcore_template”. Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the python exhibit.

Refer to the above and click on the resource labs in the top left corner to view resources to help with this question.

Python code using the UCS Python SDK is creating a server pool named "devcore_pool" and populating the pool with all servers from chassis 7, and then the server pool is associated to existing Service Profile template "devcore_template"

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the Python exhibit.

38. DRAG DROP

Drag and drop the expressions from below onto the code to implement error handling. Not all options are used.

39. DRAG DROP













Refer to the exhibit above and click on the resource tabs in the top left corner to view an IETF TANG MODEL and a Python file that changes the configuration via RESTCONF.

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 JSON file that changes configuration of interface GigabitEthernet1 to have an IPv4 configuration of 10.10.0.1/24. Not all options are used.

40. Which two techniques protect against injection attacks? (Choose two.)

41. Which HTTP status code indicates that a client application is experiencing intentional rate limiting by the server?

42. Which two situations are flagged by software tools designed for dependency checking in continuous integration environments, such as OWASP? (Choose two.)

43. Which transport protocol is used by gNMI?

44. Which two countermeasures help reduce the risk of playback attacks? (Choose two.)

45. Refer to the exhibit.





The cURL POST request creates an OAuth access token for authentication with FDM API requests.

What is the purpose of the file “@token_data” that cURL is handling?

46. Refer to the exhibit.





An Intersight API is being used to query RackUnit resources that have a tag keyword set to “Site”.

What is the expected output of this command?

47. Which database type should be used with highly structured data and provides support for ACID transactions?

48. 1. A developer has created an application based on customer requirements. The customer needs to run the application with the minimum downtime.

Which design approach regarding high-availability applications, Recovery Time Objective, and Recovery Point Objective must be taken?

49. DRAG DROP

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.

50. Refer to the exhibit.





Many faults have occurred in the ACI environment and a sample of them needs to be examined.

Which API call retrieves faults 30 through 45?

51. DRAG DROP

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 curl exhibit to complete the cURL request to FirePower Device Manager API to create objects. Not all code snippets are used.

52. Application sometimes store configuration as constants in the code, which is a violation of strict separation of configuration from code.

Where should application configuration be stored?

53. Which type of file is created from issued intermediate, root, and primary certificates for SSL installation on a server?

54. User report that they can no longer process transactions with the online ordering application, and the logging dashboard is displaying these messages.

Fri Jan 10 19:37:31.123 EST 2020 [FRONTEND] INFO: Incoming request to add item to cart from user 45834534858

Fri Jan 10 19:37:31 247 EST 2020 [BACKEND] INFO: Attempting to add item to cart

Fri Jan 10 19:37:31 250 EST 2020 [BACKEND] ERROR: Failed to add item: MYSQLDB ERROR: Connection refused

What is causing the problem seen in these log messages?

55. DRAG DROP

Refer to the exhibit.









The Python script is supposed to make an API call to Cisco DNA Center querying a wireless profile for the “ChicagoCampus” and then parsing out its enable FlexConnect value.

Drag and drop the parts of the Python code from the left onto the item numbers on the right that match the missing sections in the exhibit.

56. Refer to the exhibit.





A company has extended networking from the data center to the cloud through Transit VPC.

Which two statements describe the benefits of this approach? (Choose two.)

57. 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?

58. On a Cisco Catalyst 9300 Series Switch, the guest shell is being used to create a service within a container.

Which change is needed to allow the service to have external access?

59. Which two statements about a stateless application are true? (Choose two.)

60. How should a web application be designed to work on a platform where up to 1000 requests per second can be served?

61. DRAG DROP

Drag and drop the characteristics from the left onto the correct data processing techniques on the right, in the context of GDPR.

62. Which two principles are included in the codebase tenet of the 12-factor app methodology? (Choose two.)

63. DRAG DROP

Refer to the exhibit.





Drag and drop parts of the URL from the left onto the item numbers on the right that match the missing sections in the exhibit to create the appropriate RESTCONF URL to query the VLAN configuration given this YANG model. Not all URL parts are used.

64. Click on the GET Resource button above to view resources that will help with this question.













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?

65. DRAG DROP

Drag and drop the git commands from the left into the correct order on the right to create a feature branch from the master and then incorporate that feature branch into the master.

66. Refer to the exhibit.





Which configuration of method and parameter retrieves the health of a laptop connected to the network from Cisco DNA Center?

67. A user is receiving a 429 Too Many Requests error.

Which scheme is the server employing that causes this error?

68. An automated solution is needed to configure VMs in numerous cloud provider environments to connect the environments to an SDWAN. The SDWAN edge VM is provided as an image in each of the relevant clouds and can be given an identity and all required configuration via cloud-init without needing to log into the VM once online.

Which configuration management and/or automation tooling is needed for this solution?

69. Refer to the exhibit.





This script uses ciscoyang to configure two VRF instances on a Cisco IOS-XR device using the Yang NETCONF type.

Which two words are required to complete the script? (Choose two.)

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

71. A heterogeneous network of vendors and device types needs automating for better efficiency and to enable future automated testing. The network consists of switches, routers, firewalls and load balancers from different vendors, however they all support the NETCONF/RESTCONF configuration standards and the YAML models with every feature the business requires. The business is looking for a buy versus build solution because they cannot dedicate engineering resources, and they need configuration diff and rollback functionality from day 1.

Which configuration management for automation tooling is needed for this solution?

72. DRAG DROP





Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question.









A developer is creating a Python Script that will use the Webex Teams REST API to automatically create a new collaboration space with him and his team leads on-demand via a Linux terminal command.

Drag and drop the code snippets from the left onto the numbers on the right that match the missing sections in the exhibit to complete the script. Not all code snippets are used.

73. Refer to the exhibit above and click on the IETF Routing tab in the top left corner to help with this question.









A developer is trying to update the routing instance by adding a new route to the routes list using the URL in the exhibit.

What action must be taken to fix the error being received?

74. A client is written that uses a REST API to interact with a server. Using HTTPS as the transport, an HTTP request is sent and received an HTTP response. The response contains the HTTP response status code: 503 Service Unavailable.

Which action is the appropriate response?

75. Which RFC5988 (Web Linking) relation type is used in the Link header to control pagination in APIs?

76. Which two actions must be taken when an observable microservice application is developed? (Choose two.)

77. Refer to the exhibit.





Which key value pair from the ios_ntp Ansible module creates an NTP server peer?

78. A developer has completed the implementation of a REST API, but when it is executed, it returns a 401 error message.

What must be done on the API to resolve the issue?

79. What is submitted when an SSL certificate is requested?

80. A network operations team is using the cloud to automate some of their managed customer and branch locations. They require that all of their tooling be ephemeral by design and that the entire automation environment can be recreated without manual commands. Automation code and configuration state will be stored in git for change control and versioning. The engineering high-level plan is to use VMs in a cloud- provider environment then configure open source tooling onto these VMs to poll, test, and configure the remote devices, as well as deploy the tooling itself.

Which configuration management and/or automation tooling is needed for this solution?

81. DRAG DROP

















Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question. The script uses the Cisco Intersight REST API.

Drag and drop the code snippets from the left onto the item numbers on the right to match the missing sections in the Python script to update the firmware on specific Cisco Intersight USC rack server.DMZ_R-L3-ADJM. Not all code snippets are used.

82. DRAG DROP

Refer to the exhibit.









A system administrator has installed a Linux-based alarm system in their home that can execute a Bash shell script when an intruder is detected.

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 create a chat-ops script that will notify of alarms via the Webex Teams REST API. Not all code snippets are used.

83. Which statement about microservices architecture is true?

84. Which two statements are considered best practices according to the 12-factor app methodology for application design? (Choose two.)

85. 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.)

86. A container running a Python script is failing when it reaches the integration testing phase of the CI/CD process. The code has been reviewed thoroughly and the build process works on this container and all other containers pass unit and integration testing.

What should be verified to resolve the issue?

87. An application has initiated an OAuth authorization code grant flow to get access to an API resource on behalf of an end user.

Which two parameters are specified in the HTTP request coming back to the application as the end user grants access? (Choose two.)

88. 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?

89. Which snippet presents the correct API call to configure, secure, and enable an SSID using the Meraki API?

A)





B)





C)





D)

90. Into which two areas are AppDynamics APIs categorized? (Choose two.)

91. DRAG DROP

Drag and drop the steps from the left into the correct sequence on the right to describe how to use Git to maintain the current HEAD and revert back to a previous commit, while undoing all intermediate commits.

92. A developer needs to configure an environment to orchestrate and configure.

Which two tools should be used for each task? (Choose two.)

93. While developing an application following the 12-factor app methodology, which approach should be used in the application for logging?

94. An application uses OAuth to get access to several API resources on behalf of an end user.

What are two valid parameters to send to the authorization server as part of the first step of an authorization code grant flow? (Choose two.)

95. An organization manages a large cloud-deployed application that employs a microservices architecture across multiple data centers. Reports have received about application slowness. The container orchestration logs show that faults have been raised in a variety of containers that caused them to fail and then spin up brand new instances.

Which two actions can improve the design of the application to identify the faults? (Choose two.)

96. Refer to the exhibit.





This snippet of a script has recently started exiting abnormally with an exception stating “Unexpected HTTP Response code: 429”.

Which solution handles rate limiting by the remote API?

A)





B)





C)





D)

97. DRAG DROP

Refer to the exhibit.





Drag and drop the parts of the Python code from the left onto the item numbers on the right that match the missing sections in the exhibit that consumes REST API pagination.

98. An application is hosted on Google Kubernetes Engine. A new JavaScript module is created to work with the existing application.

Which task is mandatory to make the code ready to deploy?

99. 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?

100. There is a requirement to securely store unique usernames and passwords. Given a valid username, it is also required to validate that the password provided is correct.

Which action accomplishes this task?