1.5 Given a scenario, use the appropriate Microsoft command-line tools.

📘CompTIA A+ Core 2 (220-1202)

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These are commands that help you gather information about the system, users, and Windows version. They are read-only commands, meaning they mostly show information rather than change settings. In IT environments, they are very useful for troubleshooting, auditing, and system documentation.

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1. hostname

Purpose:
Shows the name of the computer on the network.

Syntax:

hostname

What it does:

• Displays the PC’s name (computer name) assigned in Windows.
• Helpful when you are connected to a network with multiple computers and need to identify which system you are working on.

Example in IT environment:

• If you are remotely connected via RDP to multiple servers, typing hostname tells you which server you’re currently on.
• Useful in scripts for logging which computer a report came from.

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2. net user

Purpose:
Displays information about user accounts on a local computer or domain.

Syntax:

net user

• To see details for a specific user:

net user [username]

What it does:

• Without arguments, it lists all user accounts on the computer.
• With a username, it shows account details like:
  • Full name
  • Account creation date
  • Last login
  • Group membership
  • Password settings (like expiration)

Example in IT environment:

• You’re a help desk technician and a user can’t log in. Using net user [username] helps check if their account is active, if the password has expired, or if they belong to the correct group.

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3. winver

Purpose:
Shows the Windows version and build number installed on the computer.

Syntax:

winver

What it does:

• Opens a window that shows:
  • Windows edition (Home, Pro, Enterprise, etc.)
  • Version number (like Windows 11 version 22H2)
  • OS build number

Example in IT environment:

• Useful when verifying compliance with company policies or software requirements.
• For example, a certain application may only run on Windows 11 Pro 22H2 or later; winver confirms this.

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4. whoami

Purpose:
Displays the current logged-in user and the user’s domain or computer name.

Syntax:

whoami

What it does:

• Shows username in the format: DOMAIN\username or computername\username
• Useful for confirming which account is being used in multi-user environments.

Example in IT environment:

• When running a script remotely, whoami helps confirm you are executing commands with the correct permissions.
• Prevents accidental changes from being made under the wrong account.

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5. [command name] /?

Purpose:
Provides help information about any command, including options and syntax.

Syntax:

[command] /?

Example:

net user /?

What it does:

• Displays detailed instructions for the command.
• Lists all switches (optional parameters) you can use with the command.

Example in IT environment:

• You are troubleshooting user account issues. Running net user /? shows all possible options like adding a new user, changing passwords, or enabling/disabling accounts.
• It’s essential for learning commands and avoiding mistakes in scripts.

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Summary Table

Command	Purpose	Example IT Use
hostname	Show computer name	Identify which server you are connected to
net user	View user accounts and details	Check if a user’s account is active or password expired
winver	Show Windows version	Confirm OS version for software compatibility
whoami	Show current logged-in user	Verify permissions before running commands
[command] /?	Show command help	Learn command options before using them

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✅ Exam Tips:

1. All these commands are informational – they don’t change system settings.
2. Practice using them in Command Prompt (cmd.exe) – the exam may ask which command to use for a given scenario.
3. Remember /help and /? work interchangeably on many commands, but /help may not work for all older commands.

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