LCA Package Management & Software Installation 3

Question 1

What does 'dpkg --get-selections' output?

Accepted Answer

A list of all packages and their installation states

Answer

dpkg --get-selections lists all packages known to dpkg along with their current state (install, deinstall, purge, hold).

Question 2

Which zypper command is used to search for a package by name on SUSE Linux?

Accepted Answer

zypper search

Answer

zypper search (or zypper se) searches for packages by name or description in configured repositories.

Question 3

How do you prevent a specific package from being upgraded by apt on a Debian system?

Accepted Answer

apt-mark hold <package>

Answer

apt-mark hold prevents a package from being automatically installed, upgraded, or removed by apt.

Question 4

What is the function of the '/var/lib/rpm' directory?

Accepted Answer

Stores the RPM package database

Answer

The /var/lib/rpm directory contains the Berkeley DB database files that track all installed RPM packages.

Question 5

Which dnf command displays the transaction history and allows rollback?

Accepted Answer

dnf history

Answer

dnf history shows past transactions and supports undo/redo operations to roll back package changes.

(LCA) Certified Linux Administrator Practice Test