Easy — GH-300 Practice Quiz

Question 1

A developer has selected a complex block of legacy JavaScript in VS Code and wants Copilot Chat to produce a plain-language description of what the highlighted code does, without generating new code or tests. Which Copilot Chat slash command is the most appropriate to invoke for this task?

Accepted Answer

/explain

Answer

/fix

Answer

/tests

Answer

/doc

Question 2

A DevOps engineer inherits a maintenance script full of unfamiliar shell commands. They want to use GitHub Copilot in the CLI to get a plain-language breakdown of what a specific complex command (for example, a long tar and find pipeline) actually does, without generating or executing anything new. Which Copilot CLI capability is designed for this purpose?

Accepted Answer

gh copilot explain, which takes a command as input and returns a natural-language description of what it does

Answer

gh copilot suggest, which converts a natural-language request into a shell command

Answer

gh copilot config, which stores frequently used commands as reusable aliases

Answer

gh copilot run, which executes the command and streams annotated output

Question 3

A developer is writing a Python function in VS Code with GitHub Copilot enabled. An inline (ghost text) suggestion appears, but it isn't quite what they want. They know Copilot often generates multiple candidate completions for the same context and want to view and pick from the other alternatives without leaving the editor line. What is the most direct way to browse the other inline suggestions for the current cursor position?

Accepted Answer

Hover over the ghost text and use the cycle controls (or Alt+] / Alt+[) to move to the next or previous suggestion

Answer

Open Copilot Chat and re-type the same code as a prompt to force regeneration

Answer

Press Tab repeatedly, since each Tab press discards the current suggestion and shows a new one

Answer

Run the 'Copilot: Rebuild Suggestions Index' command from the Command Palette