Cisco CCNA 200-301 Questions & Answers

• Question 1271:

  Which two HTTP methods are suitable for actions performed by REST-based APIs? (Choose two.)

  A. REMOVE

  B. REDIRECT

  C. POST

  D. GET

  E. POP

  Correct Answer: CD

• Question 1272:

  What is the advantage of separating the control plane from the data plane within an SDN network?

  A. limits data queries to the control plane

  B. reduces cost

  C. decreases overall network complexity

  D. offloads the creation of virtual machines to the data plane

  Correct Answer: C

• Question 1273:

  Refer to the exhibit.

  

  What is missing from this output for it to be executed?

  A. double quotes (" ") around the "Cisco Devices" string

  B. exclamation point (!) at the beginning of each line

  C. square bracket ( [ ) at the beginning

  D. curly braket ( } ) at the end

  Correct Answer: D

• Question 1274:

  What is a function of a northbound API in an SDN environment?

  A. It relies on global provisioning and configuration.

  B. It upgrades software and restores files.

  C. It supports distributed processing for configuration.

  D. It provides orchestration and network automation services.

  Correct Answer: D

  Software-Defined Networking (SDN) - is a higher level of network orchestration. It was originally intended to separate the control-plane and data-plane to enable higher operational efficiency in networking layer devices through programmable forwarding tables (like via the OpenFlow protocol)

• Question 1275:

  What is an Ansible inventory?

  A. unit of Python code to be executed within Ansible

  B. file that defines the target devices upon which commands and tasks are executed

  C. device with Ansible installed that manages target devices

  D. collection of actions to perform on target devices, expressed in YAML format

  Correct Answer: B

• Question 1276:

  What is a function of a northbound API?

  A. It relies on global provisioning and configuration.

  B. It upgrades software and restores files.

  C. It supports distributed processing for configuration.

  D. It provides a path between an SDN controller and network applications.

  Correct Answer: A

• Question 1277:

  Refer to the exhibit.

  

  What does apple represent within the JSON data?

  A. array

  B. object

  C. number

  D. string

  Correct Answer: D

  https://restfulapi.net/json-data-types/

• Question 1278:

  How does Chef configuration management enforce a required device configuration?

  A. The Chef Infra Server uses its configured cookbook to push the required configuration to the remote device requesting updates.

  B. The installed agent on the device connects to the Chef Infra Server and pulls its required configuration from the cookbook.

  C. The Chef Infra Server uses its configured cookbook to alert each remote device when it is time for the device to pull a new configuration.

  D. The installed agent on the device queries the Chef Infra Server and the server responds by pushing the configuration from the cookbook.

  Correct Answer: B

  Chef configuration management enforces a required device configuration by using an installed agent on the device that connects to the Chef Infra Server and pulls the required configuration from the cookbook.

  In Chef, a cookbook is a collection of recipes, attributes, templates, and other configuration files that define a desired configuration for a specific device or group of devices. The Chef Infra Server stores the cookbook, and the installed agent on each device periodically checks in with the server to see if there are any updates to the cookbook.

  If an update is available, the agent pulls the updated cookbook from the server and applies the new configuration to the device. This process is known as "pull-based" configuration management, where the devices actively request updates from the server.

• Question 1279:

  In a cloud-computing environment, what is rapid elasticity?

  A. control and monitoring or resource consumption by the tenant

  B. automatic adjustment of capacity based on need

  C. pooling resources in a multitenant model based on need

  D. self-service of computing resources by the tenant

  Correct Answer: B

• Question 1280:

  Under the CRUD model, which two HTTP methods support the UPDATE operation? (Choose two.)

  A. PATCH

  B. DELETE

  C. GET

  D. POST

  E. PUT

  Correct Answer: AE