1Z0-1116-23

Main points of Oracle 1Z0-1116-23 Test

The Oracle 1Z0-1116-23 exam, "Oracle Linux 8 System Administration," focuses on administering Oracle Linux 8 systems. The main points covered can be broadly categorized as follows:

1. System Management: This is a core area, encompassing tasks like:

• Boot process and init systems: Understanding systemd, its services, and how to manage them (starting, stopping, enabling, disabling). Troubleshooting boot issues is also crucial.
• Kernel parameters and modules: Knowing how to adjust kernel parameters to optimize performance or troubleshoot issues, and managing kernel modules (loading, unloading).
• Resource management (CPU, memory, storage): Monitoring system resource utilization, identifying bottlenecks, and implementing strategies to optimize resource allocation. This includes understanding tools like top, htop, and iostat.
• Software package management (using DNF): Installing, updating, removing, and querying software packages using DNF (Dandified Yum). Understanding repositories and their configuration is vital.
• System logging and monitoring: Working with system logs (journalctl), understanding log levels, and using monitoring tools to track system health.
• User and group management: Creating, modifying, and managing users and groups, including understanding permissions and access control lists (ACLs).
• Network configuration: Configuring network interfaces (static and DHCP), managing DNS, and understanding networking fundamentals. This often includes working with nmcli and /etc/sysconfig/network-scripts/.
• Security hardening: Understanding basic security best practices, including password policies, firewall configuration (firewalld), and SELinux.

2. Virtualization and Containers (LXC): While not as heavily weighted as system administration, there will be questions on:

• Basic virtualization concepts: Understanding the difference between virtual machines and containers.
• LXC container management: Creating, managing, and deleting LXC containers. This may involve using lxc commands.

3. High Availability and Clustering (basic concepts): The exam likely touches upon the fundamental concepts of high availability without delving into complex cluster configurations.

4. Storage Management (basic): Understanding different file systems (ext4, XFS), managing partitions, and basic storage concepts.

It's crucial to note: The exam emphasizes practical, hands-on skills. You should be able to perform the tasks mentioned above using the command line. Memorizing commands and understanding their options is essential. The exam is not heavily theoretical; it focuses on your ability to administer a real Oracle Linux 8 system.

To prepare effectively, use the official Oracle documentation, practice labs, and hands-on experience with Oracle Linux 8. Focus on mastering the command-line interface and gaining practical experience with the core system administration tasks. Many online resources and practice exams are available to help you prepare.