Explanation

To create a running container based on a tagged Docker image with the container port 8080 bound to port 80 on the host, you use the docker run command with the -p flag.
A: docker build -p 8080:80 alpine
- Incorrect. docker build is used to build an image, not run a container. B. docker exec -p 8080:80 alpine
- Incorrect. docker exec is used to run a command in a running container. C. docker start -p 8080:80 alpine
- Incorrect. docker start starts a stopped container but does not create one. D. docker run -p 8080:80 alpine
- Correct. This command runs a new container from the image and maps the ports.
References:
* Docker Run Command

Reference:
https://stackoverflow.com/questions/36213948/what-is-the-difference-between-asynchronous-calls-and-callback The primary difference between synchronous and asynchronous APIs is how they handle responses.
Synchronous API calls wait for the server to process the request and return a response immediately. In contrast, asynchronous API calls do not wait for the server to complete processing; instead, they allow the client to continue executing other tasks, and the response is returned later, typically via a callback or polling mechanism.
References:
Cisco DevNet Associate Study Guide: Understanding API Types (Chapter 7, Section: Synchronous vs Asynchronous APIs).

https://www.cisco.com/c/en/us/td/docs/ios-
xml/ios/prog/configuration/169/b_169_programmability_cg/configuring_yang_datamodel.html NETCONF uses a simple Remote Procedure Call (RPC) based mechanism to facilitate communication between a client and a server. The client can be a script or application running as part of a network manager. The server is typically a network device (switch or router). It uses Secure Shell (SSH) as the transport layer across network devices. It uses SSH port number 830 as the default port.

Section: Network Access