LFCS Certification Software Package Management 4

Question 1

What happens when you run `apt-get install -f` (or `--fix-broken`)?

Accepted Answer

Resolves and fixes broken package dependencies automatically

Answer

`apt-get install -f` attempts to correct broken dependencies by installing missing packages or removing conflicting ones.

Question 2

Which `rpm` command rebuilds the RPM database after it becomes corrupted?

Accepted Answer

rpm --rebuilddb

Answer

`rpm --rebuilddb` rebuilds the RPM database from the installed package headers, fixing corruption issues.

Question 3

In a YUM/DNF .repo file, what does the `enabled=0` directive do?

Accepted Answer

Disables the repository so it is not used by default

Answer

Setting `enabled=0` prevents DNF/YUM from querying this repository unless explicitly enabled with `--enablerepo`.

Question 4

Which command shows which installed RPM packages have files that have been modified since installation?

Accepted Answer

rpm -Va

Answer

`rpm -Va` verifies all installed packages, reporting files whose attributes differ from the original package metadata.

Question 5

What is the role of `/etc/apt/preferences` or `/etc/apt/preferences.d/` on Debian systems?

Accepted Answer

Defines package pinning rules that control which version APT installs

Answer

APT pinning in /etc/apt/preferences allows administrators to specify which package versions or repositories take priority.

LFCS Certification Practice Test