SA-401 Prelim Quiz

What is the primary purpose of the npm install command in the CLI?

• To remove an installed package

• To install dependencies listed in the package.json file

• To create a new package.json file

• To update Node.js to the latest version

What does the node --version command do in the CLI?

• Starts a Node.js server

• Displays the current version of Node.js installed

• Installs the latest version of Node.js

• Updates the package.json file with the Node.js version

What is the purpose of the sudo apt install nginx -y command in the CLI?

• Uninstalls Nginx from the system

• Installs Nginx and automatically confirms the installation

• Updates Nginx to the latest version

• Installs Nginx only if prompted

What is an Amazon Machine Image (AMI) in AWS?

• A backup tool for EC2 instances

• A template that contains the software configuration required to launch an EC2 instance

• A networking service used to manage IP addresses

• A storage service for saving large data sets on AWS

What is the primary function of Amazon Elastic Block Store (EBS) in AWS?

• To provide scalable object storage for unstructured data

• To manage networking and IP configurations

• To offer block-level storage volumes for use with EC2 instances

• To monitor and optimize AWS resources in real-time

What does EC2 stand for in AWS?

• Enterprise Cloud Computing

• Elastic Compute Cloud

• Enhanced Cloud Capability

• External Computing Cluster

Which of the following best describes cloud computing?

• Storing data on a local hard drive

• Running applications on personal computers only

• Delivering computing services over the internet

• Managing hardware directly within a physical data center

Which of the following is a compute service in AWS Cloud Computing?

• Amazon S3

• Amazon RDS

• Amazon EC2

• Amazon CloudFront

Which of the following best describes Amazon EC2?

• A storage service for archiving data

• A managed database service

• A virtual server hosting service

• A content delivery network

What is the purpose of the sudo apt-get update command in the CLI?

• To upgrade all installed packages to their latest version

• To update the system's package list with the latest available versions

• To remove unused packages from the system

• To install new software from external repositories