LPIC-3 Exam 305 (Virtualization and Containerization) — Question 3

In order to use the option dom0_mem to limit the amount of memory assigned to the Xen Domain-0, where must this option be specified?

Answer options

• A. In the bootloader configuration, when Xen is booted.
• B. In any of Xen’s global configuration files.
• C. In its .config file, when the Domain-0 kernel is built.
• D. In the configuration file /etc/xen/Domain-0.cfg, when Xen starts.
• E. In its Makefile, when Xen is built.

Correct answer: A

Explanation

The correct answer is A because the dom0_mem option must be specified in the bootloader configuration during the boot process of Xen. Options B, C, D, and E are incorrect as they refer to locations where this specific memory limitation cannot be set for Domain-0.