Free Practice Questions for Linux Foundation LFCA Exam

Which of the following commands is used to detach a mounted filesystem or storage device?

• umount
• mount
• mkfs
• fsck

What software application architecture allows teams to iterate quickly and to develop software applications to scale rapidly?

• Serverless architecture
• Container architecture
• SOA architecture
• Micro-service architecture

When working on a Linux system with firewalld enabled, how can other systems be allowed to access the HTTPS port on the system in the default firewall zone so that the access is granted immediately and persists across reboots?

• firewallctl --add-port=https --reload
• iptables --add-service=https --permanent
• firewalld --add-service=https
• firewall-cmd --add-service=https --permanent --reload

A supervisor instructs an IT associate to encrypt all data on a particular partition on a Linux database host. What open source technology would be used to encrypt the data?

• MD5
• LUKS
• BitLocker
• ext4

A software development team uses a single physical server for testing the latest code in multiple environments: development, pre-production, and production.What is the recommended approach to maintain the basic security of these environments?

• Assign different developers on the team to work on test, pre-prod. and prod code.
• Implement peer review for all the changes deployed into any of the environments
• Develop and deploy each environment with its own set of software tools.
• Use different user/group IDs for deploying and running workload in each environment.

An IT team is currently implementing a custom software platform to address some key needs of the company. Which of the following is considered a functional requirement?

• Identifying the purpose of the proposed system
• Identifying the users of the proposed system
• Identifying the development methodology
• Identifying the technology stack of the proposed system

Which is a common best practice to automatically reduce disk usage associated with the storage of log files?

• Use the loqrotate utility to periodically rotate the loq files.
• Create a cron job that deletes all log files in the folder every day.
• Delete the Vvar/log" directory so the log files are prevented from being created.
• Manually empty the log files every day of the week.

The Linux kernel uses a:

• dual architecture
• B microkernel architecture
• monolithic architecture
• hybrid microkernel architecture

By default, the Linux operating system uses what access control to manage files/users?

• Discretionary Access Control
• Mandatory Access Control
• Least Privilege
• Full Control

When using vi or vim to edit a file, how do you exit without saving?

• :q!
• ZZ
• :wq!
• :exit