350-901 practice questions 91–100

1. Question 91 · 385 in bank

   Which command is used to enable application hosting on a Cisco IOS XE device?

   • Aiox
   • Bapplication-hosting
   • Ciox-service
   • Dapp-hosting

   Show answer

   Answer: A

   Explanation

   1. Create a TAR file from the Docker container (on a Linux box): $ docker save iox_app -o iox_app.tar 2. Enable the IOx subsystem on a network device: Device(config)#iox 3. Tune the container settings (networking, resources, Docker options) in the “app-hosting appid” configuration section 4. - Install the application container image (resources are not committed to the application yet): Device# app-hosting install appid iox_app package usbflash1:iox_app.tar 5. Activate the application (required resources will be committed to the application): Device# app-hosting activate appid iox_app 6. Start the application: Device# app-hosting start appid iox_app Source: Cisco DEVCOR 350-901 Study Guide

   Source: Adapted from community discussion — ferock

   References

   • cisco.com documentation
   • Cisco documentation

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2. Question 92 · 385 in bank

   DRAG DROP - 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. Select and Place:

   

   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

   Explanation

   Correct answer: 1. IOX 2. Install 3. Activate 4. Start Device(config)#iox Device# app-hosting install appid iox_app package usbflash1:iox_app.tar Device# app-hosting activate appid iox_app Device# app-hosting start appid iox_app ! Device# app-hosting stop appid iox_app Device# app-hosting deactivate appid iox_app Device# app-hosting uninstall appid iox_app

   Source: Adapted from community discussion — Teringzooi

   References

   • cisco.com documentation
   • Cisco documentation

   

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3. Question 93 · 385 in bank

   

   Refer to the exhibit. Which word is missing from this Ansible playbook shown, to allow the Cisco IOS XE commands for router configuration to be pushed after the playbook is executed?

   • Ainput
   • Blines
   • Ccommands
   • Dconfig

   Show answer

   Answer: B

   Explanation

   tasks: - name: configure top level configuration ios_config: lines: hostname {{ inventory_hostname }} - name: configure interface settings ios_config: lines: - description test interface - ip address 172.31.1.1 255.255.255.0 parents: interface Ethernet1 Source: Cisco DEVCOR 350-901 Study Guide

   Source: Adapted from community discussion — ferock

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4. Question 94 · 385 in bank

   

   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?

   • Aietf-interfaces and ietf-ip
   • Biana-if-type and ietf-interfaces
   • Cietf-ip and openconfig-interface
   • Dietf-ip and iana-if-type

   Show answer

   Answer: A

   Explanation

   I would go with A as the ietf-interfaces augment the ietf-ip. This was clearly states in this video: https://www.ciscolive.com/on-demand/on-demand-library.html?search=BRKDEV-1368&search=BRKDEV-1368#/video/1636411323819002rNiV at 35:45 .. so the ietf-interfaces is augmented by the ietf-ip to include the IP leaf that is missing in the ietf-ip module.

   Source: Adapted from community discussion — splair85

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5. Question 95 · 385 in bank

   

   Refer to the exhibit. Which key value pair from the ios_ntp Ansible module creates an NTP server peer?

   • Astate: present
   • Bstate: True
   • Cconfig: present
   • Dconfig: True

   Show answer

   Answer: A

   Explanation

   I Agree with option A. Explanation: ios_ntp : Manages core NTP configuration state : Manage the state of the resource Choices : present | absent Example: # Set new NTP server and source interface - ios_ntp: server: 10.0.255.10 source_int: Loopback0 logging: false state: present https://docs.ansible.com/ansible/latest/modules/ios_ntp_module.html

   Source: Adapted from community discussion — blezzzo

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6. Question 96 · 385 in bank

   

   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?

   • AVRFs not defined in the host_vars file are removed from the device.
   • BVRFs not defined in the host_vars file are added to the device, and any other VRFs on the device remain.
   • CVRFs defined in the host_vars file are removed from the device.
   • DVRFs are added to the device from the host_vars file, and any other VRFs on the device are removed.

   Show answer

   Answer: D

   Explanation

   D is correct: - vrfs: The set of VRF definition objects to be configured on the remote IOS device. Ths list entries can either be the VRF name or a hash of VRF definitions and attributes. This argument is mutually exclusive with the name argument (string). - state: Configures the state of the VRF definition as it relates to the device operational configuration. When set to present, the VRF should be configured in the device active configuration and when set to absent the VRF should not be in the device active configuration. Choices: Present (default) / absent - purge: Instructs the module to consider the VRF definition absolute. It will remove any previously configured VRFs on the device. no (default) / yes https://docs.ansible.com/ansible/latest/collections/cisco/ios/ios_vrf_module.html

   Source: Adapted from community discussion — designated

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7. Question 97 · 385 in bank

   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. Select and Place:

   

   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

   • AWS documentation

   

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8. Question 98 · 385 in bank

   Which transport protocol is used by gNMI?

   • AHTTP/2
   • BHTTP 1.1
   • CSSH
   • DMQTT

   Show answer

   Answer: A

   Explanation

   Option A Explanation: gNMI is gRPC network management protocol developed by Google. gNMI provides the mechanism to install, manipulate, and delete the configuration of network devices, and also to view operational data. The content provided through gNMI can be modeled using YANG. Built on top of gRPC - an open source framework developed by Google and managed by CNCF. RPC framework built on top of HTTP/2

   Source: Adapted from community discussion — blezzzo

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9. Question 99 · 385 in bank

   

   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?

   • Ahost_vars directory
   • Bhome directory
   • Cgroup_vars directory
   • Dcurrent working directory

   Show answer

   Answer: A

   Explanation

   *host_info = host_vars Although you can store variables in the main inventory file, storing separate host and group variables files may help you organize your variable values more easily. Host and group variable files must use YAML syntax. Valid file extensions include ‘.yml’, ‘.yaml’, ‘.json’, or no file extension. See YAML Syntax if you are new to YAML. https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html#splitting-out-vars

   Source: Adapted from community discussion — designated

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10. Question 100 · 385 in bank

    Applications sometimes store configuration as constants in the code, which is a violation of the strict separation of configuration from code. Where should application configuration be stored?

    • Aenvironment variables
    • BYAML files
    • CPython libraries
    • DDockerfiles
    • EINI files

    Show answer

    Answer: A

    Explanation

    A is correct ## Factor III: Config ## - Store config in the environment. Config is everything likely to vary between deploys: credentials, resource handles, and per-deploy values. The 12-factor app requires strict separation of config from code and stores config in environment variables (or env vars). Environment variables are easy to change between deploys without changing any code and, unlike config files, there is a low chance of them being checked into the code repo accidentally.

    Source: Adapted from community discussion — designated

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350-901 practice, question 91. 385 questions available.