Cisco 200-901 Practice Test - Questions Answers, Page 43

The EXPOSE instruction in a Dockerfile informs Docker that the container listens on the specified network ports at runtime.

EXPOSE Instruction: It does not publish the port but indicates to Docker that the application inside the container uses this port.

Listening Port: The Docker container will be configured to listen on port 5000 using EXPOSE 5000.

Dockerfile

Reference: Dockerfile EXPOSE

In YANG, a 'container' is a grouping of related nodes and sub-nodes. The 'interfaces' object in the YANG model is a container for interface-related data.

Container: The container statement is used to define an interior data node in the YANG data tree.

Structure: The exhibit shows that 'interfaces' encapsulates other nodes such as interface, name, description, etc., indicating that it is a container.

YANG Data Modeling Language: YANG RFC

Other benefits of version control include:

Collaboration: Multiple developers can work on the same project simultaneously without overwriting each other's work.

Branching and Merging: Developers can work on different features or bug fixes in isolation and merge their changes back into the main codebase once they are ready.

Backup: The entire history of the project is stored in the VCS, providing a backup that can be restored if necessary.

Cisco DevNet Associate Certification Guide

Pro Git Book, Chapter on Getting Started

HTTP status code 429 indicates that too many requests have been sent in a given amount of time, which is a sign of rate limiting. Rate limiting is used by APIs to control the amount of incoming requests to prevent abuse or overloading the server. In this case, the Cisco Prime API is limiting the number of requests the network engineer can make in a certain time period, resulting in only a subset of devices being returned and some requests being rejected with a 429 status code.

Cisco DevNet Associate Certification Guide

HTTP Status Code Definitions

The Bash script shown in the exhibit performs the following actions:

Updates the list of available packages using brew update.

Installs Docker using brew install docker.

Upgrades pip and installs tensorflow and pytorch using pip install.

Pulls the latest TensorFlow Docker image using docker pull tensorflow/tensorflow:latest.

This script is designed to install the necessary software packages (Docker, TensorFlow, PyTorch) required for a machine learning-based application. It does not create or remove any software packages but installs them.

Cisco DevNet Associate Certification Guide

Docker Documentation

Homebrew Documentation

Pip Documentation

For the distributed application developed using the Cisco Intersight SDK to communicate with the Intersight API, the traffic needs to be allowed through the firewall. The correct URL and port that need to be provided to the firewall administrator are svc.intersight.com on port 443. Port 443 is the standard port for HTTPS traffic, which ensures secure communication between the application and the Intersight server.

Cisco DevNet Associate Certification Guide

Cisco Intersight API Documentation

Cisco YANG Data Models: Cisco YANG Models

YANG Development Kit (YDK): YDK Documentation

Cisco Modeling Labs (CML) is a network simulation tool that allows users to create, configure, and simulate networks with Cisco devices and topologies.

Cisco Modeling Labs (CML): CML provides a virtual environment where users can simulate network topologies and devices, including routers, switches, and other network components.

Simulation and Testing: CML allows users to test configurations, troubleshoot network issues, and study network behavior in a controlled environment.

Cisco Modeling Labs: Cisco Modeling Labs

To build a Docker image using the current folder and a specified Dockerfile, and then tag the image with a specific name for the local repository, the following command is used:

docker build: This command builds a Docker image from a Dockerfile.

-t cust321453857-rep: The -t option tags the resulting image with the specified name (cust321453857-rep).

-f Dockerfile: The -f option specifies the Dockerfile to use for building the image.

Command:

docker build -t cust321453857-rep -f Dockerfile .

Docker Build Command: Docker Build