The important topics for the LPI LX0-103 certification exam that candidates must prioritize in their preparations are as follows,

Identifying and configuring hardware settings
System booting
Designing the hard disk layout
Installation of boot manager
Management of shared libraries
Utilizing Debian, YUM and RPM package management
Processing text streams by utilizing filters
Basic file management
Utilizing pipes, redirects, and streams
Modification of process execution priorities
Conducting general file editing operations through vi
Creation of partitions and filesystems
Maintenance of integrity of filesystems
Management of disk quotas
Creation and modification of hard and symbolic links