Automating Cisco Data Center Networking Solutions (DCNAUTO) Free Sample Questions

Ansible is a declarative automation tool that uses YAML-based playbooks, fitting perfectly into the CI/CD pipeline requirements. The modules in the cisco.ucs collection are designed to be idempotent, meaning they will only make changes if the current state does not match the desired state defined in the playbook. This makes it the optimal choice for meeting all the stated requirements.

POAP operates within the management VRF by default. If the TFTP server is in a different subnet, the switch must have a default gateway (provided by DHCP) and proper routing to reach it. Lack of IP reachability is a common cause of POAP script download failures.

Even with full IP reachability (e.g., ICMP pings work), network security policies can block specific protocols. TFTP uses UDP port 69, which might be blocked by an intermediate firewall or an ACL, preventing the file transfer from succeeding.

This is the correct syntax for an OData query. The '$filter' parameter is used to specify the filtering condition, where the 'Status' property must be equal ('eq') to the string 'Unassigned'.

The frequency of data collection and streaming is a primary driver of CPU usage. Increasing the sample interval (e.g., from 5 to 60 seconds) directly reduces how often the system must gather and push data, significantly lowering the CPU load. This is the most direct and effective method to control resource consumption while maintaining visibility, albeit at a lower resolution.

The statement is false. In the Cobra SDK workflow, you first create and modify Managed Objects (MOs) locally within your script. The changes are not sent to the APIC until you explicitly use a method like c.addMo(tenant) and then c.commit(configReq) to commit the configuration request. This allows for building a set of changes before sending them to the controller in a single transaction.

The asyncio library is Python's standard framework for writing single-threaded concurrent code using coroutines. Paired with the aiohttp library, which provides an asynchronous HTTP client, it allows the script to make an API call, await the response without blocking, and yield control to the event loop to perform other tasks. This is the ideal pattern for non-blocking I/O operations.

The NX-OS guest shell is a Linux environment where Python packages are managed using pip. To install packages system-wide within the shell, you need root privileges, which are obtained using sudo. Therefore, sudo pip install is the correct command.

This is the standard GitOps workflow for Terraform. When a developer submits a pull request, the CI/CD pipeline automatically runs terraform plan. The output of the plan, showing the exact changes to be made, is posted to the pull request for review. The changes are only applied (terraform apply) after the pull request is approved and merged, satisfying the security requirement for review and approval.

This is the standard best practice. A virtual environment isolates the project's dependencies from the system and other projects. The pip freeze > requirements.txt command creates a file listing the exact packages and versions, which can then be used on another machine with pip install -r requirements.txt to perfectly replicate the environment.

The standard workflow for NDFC API authentication involves sending a POST request with user credentials to a login endpoint. The response contains a session token (e.g., Dcnm-Token) that must be included in the headers of all subsequent API calls.

The initial login request to obtain the session token requires the user's username and password to be sent in the body of the POST request. This is the first step of the authentication process.