Cisco 200-901 Online Practice Questions and Exam Preparation

Cisco 200-901 Online Questions & Answers

• Question 611:

  An engineer deploys a Cisco CSR 1000 V instance to a virtual machine. The engineer must output the device configuration in JSON format. Which protocol is used for this task?

  A. YANG
  B. NETCONF
  C. SNMP
  D. RESTCONF
  D. RESTCONF

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  RESTCONF is a protocol for remotely accessing and modifying data defined in a data model. It is used to transfer data in JSON or XML format over HTTP. RESTCONF can be used to output device configuration in JSON format on a Cisco CSR 1000V instance. YANG is a data modeling language used to define data for network management. NETCONF is a network management protocol used to install, manipulate, and delete configuration data on network devices. SNMP (Simple Network Management Protocol) is a protocol used to monitor and manage network devices.

• Question 612:

  Refer to the exhibit.

  

  What is the effect of this Ansible playbook on an IOS router?

  A. A new running configuration is pushed to the IOS router.
  B. The start-up configuration of the IOS router is copied to a local folder.
  C. The current running configuration of the IOS router is backed up.
  D. A new start-up configuration is copied to the IOS router.
  C. The current running configuration of the IOS router is backed up.

• Question 613:

  Which protocol runs over TCP port 830?

  A. NETCONF
  B. Telnet
  C. RESTCONF
  D. HTTP
  A. NETCONF

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  NETCONF (Network Configuration Protocol) operates over TCP port 830. It is a protocol defined for managing network devices and configurations. NETCONF provides mechanisms to install, manipulate, and delete the configuration of network devices. It uses XML as its data encoding format and allows for easy automation of network configuration tasks. References: Cisco DevNet Associate Certification Guide RFC 6241 - Network Configuration Protocol (NETCONF)

• Question 614:

  What are two security benefits of a Docker-based application? (Choose two.)

  A. natively secures access to secrets that are used by the running application
  B. guarantees container images are secured and free of vulnerabilities
  C. easier to patch because Docker containers include only dependencies that the application requires
  D. prevents information leakage that can occur when unhandled exceptions are returned in HTTP responses
  E. allows for separation of applications that traditionally run on the same host
  C. easier to patch because Docker containers include only dependencies that the application requires
  E. allows for separation of applications that traditionally run on the same host

• Question 615:

  Which two encoding formats do YANG interfaces support? (Choose two.)

  A. XML
  B. JSON
  C. XHTML
  D. BER
  E. plain text
  A. XML
  B. JSON

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  Explanation Explanation/Reference:https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/171/ b_171_programmability_cg/model_driven_telemetry.html

• Question 616:

  A developer creates a web application that receives a username and password and uses them to sync the credentials to other services through HTTPS. API keys to services are part of the configuration files of the application, but the credentials to the database that stores the synchronization logs are obtained through an external vault service. What is the security issue in this scenario?

  A. Communication between the application and the services is not encrypted.
  B. The database credentials should be stored in the configuration files so that they are secured on the same server.
  C. The API keys are stored in the configuration files but should be stored in the vault service.
  D. The synchronization logs should be encrypted and not stored in a relational database.
  C. The API keys are stored in the configuration files but should be stored in the vault service.

• Question 617:

  Refer to the exhibit.

  

  A network engineer changes the configuration of a device interface, and the device becomes unreachable. The engineer accesses the server console to review the differences with the backup file. Which change must be made in the eth1.cfg file to restore the original configuration?

  A. Remove the line GATEWAY="192.168.1.254".
  B. Remove the line IPADDR="192.168.1.20/32".
  C. Add lines ONBOOT=yes and GATEWAY="192.168.1.254".
  D. Add lines ONBOOT=yes and IPADDR="192.168.1.20/32".
  C. Add lines ONBOOT=yes and GATEWAY="192.168.1.254".

  ---

  Explanation Explanation/Reference:

• Question 618:

  Refer to the exhibit.

  

  A developer is trying to collect data over RESTCONF API and prepares the request. The developer wants to get data in JSON format and with the IOS-XE-native model, but the request fails. Which HTTP part causes the failure?

  A. application value
  B. invalid URL
  C. missing URI header path
  D. incorrect request type
  B. invalid URL

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  Explanation Explanation/Reference:interface not interfaces + 404 error

• Question 619:

  Which data structure is created when parsing XML data in Python?

  A. item
  B. list
  C. library
  D. dictionary
  D. dictionary

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  When parsing XML data in Python, the common data structure used to represent the parsed data is a dictionary. The xml.etree.ElementTree module in Python allows for parsing XML data and represents the hierarchical structure of the XML document using dictionaries and lists.

• Question 620:

  Which two use cases are supported by Meraki APIs? (Choose two.)

  A. Build location-aware apps from Wi-Fi and LoRaWAN devices.
  B. Build a custom Captive Portal for Mobile Apps.
  C. Configure network devices via the Dashboard API.
  D. Deploy applications onto the devices.
  E. Retrieve live streams from a Meraki Camera.
  B. Build a custom Captive Portal for Mobile Apps.
  C. Configure network devices via the Dashboard API.