Free Cisco 200-901 Practice Exam with Questions & Answers | Set: 3

Ansible is a powerful automation tool used for IT tasks such as configuration management, application deployment, and task automation. In the context of the exhibit, Ansible can be used to automate the removal of a Cisco Meraki device from the network and retrieve device information.

Device Management: Ansible modules, such as the meraki_device module shown in the exhibit, allow for the management of Meraki devices. Tasks can include querying device information and changing the state of the device.

Automation with Playbooks: The Ansible playbook in the exhibit demonstrates how to authenticate, define the organization and network, and manage the device state (query or absent).

Task Execution: The playbook is structured to perform tasks using a loop (with_items) to execute actions such as querying device details and removing the device (absent state).

References:

Ansible Documentation for Meraki Modules: Ansible Meraki Modules

The Cisco DevNet Sandbox provides a virtual environment where engineers and developers can access and run tests on various Cisco controllers and infrastructure components. This service offers always-on and reservation-based sandboxes that simulate real-world environments.

DevNet Sandbox: The Sandbox offers various environments with preconfigured Cisco devices and APIs, allowing engineers to run tests and develop solutions without affecting live systems.

Always-On Sandboxes: These environments are always available and can be used without reservation.

API Access: The Sandbox environments include access to APIs, enabling comprehensive testing and integration.

References:

Cisco DevNet Sandbox: DevNet Sandbox

The exhibit shows the router configuration for NAT (Network Address Translation). To allow traffic from the security cameras to access the Internet, the access list needs to include a permit statement for the 192.168.10.0/24 subnet.

Access List Configuration: The access list (ACL) should permit traffic from the security camera VLAN (192.168.10.0/24).

NAT Configuration: The NAT configuration uses an ACL to determine which internal IP addresses are translated to the public IP address pool.

Missing Permit Statement: Without a specific permit statement for the 192.168.10.0/24 subnet, the router does not translate the IP addresses from this subnet, resulting in a lack of Internet access for the security cameras.

References:

Cisco NAT Configuration Guide: NAT Configuration

When using OAuth2 authentication for accessing a protected resource via a REST API, the typical flow involves obtaining an access token which can then be used to authenticate subsequent API requests. The correct process is:

POST Call to /login: Make a POST request to the /login endpoint with the user credentials (username and password) in the request body. This call will authenticate the user and, if successful, return an access token.

Use the Token: Use the retrieved token by including it in the Authorization header (usually as a Bearer token) in the request to access the protected resource, in this case, the /item endpoint.

References:

OAuth 2.0 Authorization Framework - RFC 6749

DNS (Domain Name System) is the technology responsible for resolving a host name to an IP address. It translates domain names, which are easier for humans to remember, into IP addresses that are used by network devices to locate and communicate with each other over the internet. When a user types a domain name into a web browser, the DNS server maps it to the corresponding IP address so the browser can load the desired web page.

Rate limiting, as explained previously, is essential to ensure that an application can handle traffic spikes without crashing. By limiting the rate at which requests are processed, the application can maintain stability and reliability under varying load conditions.

Traffic Spike Management: Rate limiting helps manage unexpected surges in traffic by capping the number of allowable requests within a specified period.

Reliability Maintenance: By preventing overloading, rate limiting ensures that the application remains operational and responsive, maintaining its reliability.

References:

Managing Traffic Spikes with Rate Limiting: Rate Limiting Strategies

When you run the git add . command, the changes are moved to the staging area. The git diff command, by default, shows differences between the working directory and the last commit. Since the changes have been staged, git diff will not show any differences because it is comparing the working directory to the last commit, not the staging area. To see the changes that have been staged, you need to use the git diff --staged command, which compares the staged changes with the last commit.

References:

Pro Git Book, Chapter 2: Git Basics - Recording Changes to the Repository

Git Documentation

To clone the "myproject" repository from GitHub into a new folder named "aci" for optimization, the correct command is:

git clone git@github.com:myproject aci

This command specifies the SSH URL of the repository (git@github.com

) and sets the target directory to "aci." The git clone command copies the repository to the local machine, creating a new directory named "aci" where the repository's contents will be placed.

References:

Git Clone Documentation

GitHub SSH Setup