Distinguishing X server and X client | LinuC Level 1 101 Exam original practice question

1.01.5Basic

An X server manages a display, and a GUI application displays windows on it.

Which relationship is correct?

Hint 1: Focus on the requirement

Identify which side owns display and input resources and which side requests drawing operations.

Hint 2: Key terms

Review the short definitions before comparing the X Window System choices.

X server: The X component that manages display, keyboard, and pointer resources.
X client: A program that requests windows, drawing, and input events from an X server.
Display resource: A screen or input resource exposed by the X server to clients.
X protocol: The protocol used for communication between X clients and the X server.

Detailed explanation

IncorrectX clientが必ずkeyboardとdisplay hardwareを直接管理する

Incorrect. The X server, not the client, owns the display and input resources.

CorrectX serverがdisplayと入力deviceを管理し、X clientが描画などを要求する

Correct. The server manages resources and clients request operations.

IncorrectX serverはGUI applicationの設定fileだけを保存する

Incorrect. X server responsibility is not limited to storing configuration files.

IncorrectX clientとX serverは必ず同一processである

Incorrect. Client and server can be separate processes and even separate hosts.

An example you can run in a temporary verification environment.

printf '%s
' "${DISPLAY-<unset>}"

現在shellのDISPLAY値または<unset>

Foundation review

The X server can be remote from a client; the names describe resource ownership, not where the application runs.

Inspect DISPLAY and authorization settings without exposing a graphical session to untrusted hosts.

Question IDKL-101-370

Environment環境変数の読み取りのみ

Last technical review2026-08-13

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