Answers & Notes
If you sit for a free retake after 13:00 UTC on March 20, 2018, you will be tested on Domains and Competencies V3.18 (even if that is not what you were originally tested on during your first attempt).
LFCS Domains and Competencies V3.18
Essential Commands – 25%
- Log into local & remote graphical and text mode consoles
- Search for files
- Evaluate and compare the basic file system features and options
- Compare and manipulate file content
- Use input-output redirection (e.g. >, >>, |, 2>)
- Analyze text using basic regular expressions
- Archive, backup, compress, unpack, and uncompress files
- Create, delete, copy, and move files and directories
- Create and manage hard and soft links
- List, set, and change standard file permissions
- Read, and use system documentation
- Manage access to the root account
Operation of Running Systems – 20%
- Boot, reboot, and shut down a system safely
- Boot or change system into different operating modes
- Install, configure and troubleshoot bootloaders
- Diagnose and manage processes
- Locate and analyze system log files
- Schedule tasks to run at a set date and time
- Verify completion of scheduled jobs
- Update software to provide required functionality and security
- Verify the integrity and availability of resources
- Verify the integrity and availability of key processes
- Change kernel runtime parameters, persistent and non-persistent
- Use scripting to automate system maintenance tasks
- Manage the startup process and services (In Services Configuration)
- List and identify SELinux/AppArmor file and process contexts
- Manage Software
- Identify the component of a Linux distribution that a file belongs to
User and Group Management – 10%
- Create, delete, and modify local user accounts
- Create, delete, and modify local groups and group memberships
- Manage system-wide environment profiles
- Manage template user environment
- Configure user resource limits
- Manage user privileges
- Configure PAM
Networking – 12%
- Configure networking and hostname resolution statically or dynamically
- Configure network services to start automatically at boot
- Implement packet filtering
- Start, stop, and check the status of network services
- Statically route IP traffic
- Synchronize time using other network peers
Service Configuration – 20%
- Configure a caching DNS server
- Maintain a DNS zone
- Connect to network shares
- Configure email aliases
- Configure SSH servers and clients
- Restrict access to HTTP proxy servers
- Configure an IMAP and IMAPS service
- Query and modify the behavior of system services at various operating modes
- Configure an HTTP server
- Configure HTTP server log files
- Restrict access to a web page
- Configure a database server
- Manage and configure containers
- Manage and configure Virtual Machines
Storage Management – 13%
- List, create, delete, and modify physical storage partitions
- Manage and configure LVM storage
- Create and configure encrypted storage
- Configure systems to mount file systems at or during boot
- Configure and manage swap space
- Create and manage RAID devices
- Configure systems to mount file systems on demand
- Create, manage and diagnose advanced file system permissions
- Setup user and group disk quotas for filesystems
- Create and configure file systems