1. About RHCE EXAM- EX294 RHEL8
With the introduction of Red Hat 8 operating system the exam objectives for Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8 are clearly focused on using Ansible automation.
The followings are the objectives of the Red Hat Exam EX294 " Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8" referenced on the Red Hat website:
Systems Administration Configuration & Management
Understand and use essential tools
Operate running systems
Configure local storage
Create and configure file systems
Deploy, configure, and maintain systems
Manage users and groups
Manage security
Understand Ansible Core Components
Inventories
Modules
Variables
Facts
Plays
Playbooks
Configuration files
Use provided documentation to look up specific information about Ansible modules and commands
Install & Configure Ansible Control Node
Install required packages
Create a static host inventory file
Create a configuration file
Create and use static inventories to define groups of hosts
Manage parallelism
Configure Ansible Managed Nodes
Create and distribute SSH keys to managed nodes
Configure privilege escalation on managed nodes
Validate a working configuration using ad-hoc Ansible commands
Script Administration Tasks
Create simple shell scripts
Create simple shell scripts that run ad hoc Ansible commands
Create Ansible Plays & Playbooks
Know how to work with commonly used Ansible modules
Use variables to retrieve the results of running a command
Use conditionals to control play execution
Configure error handling
Create playbooks to configure systems to a specified state
System Administration with Ansible Modules
Software packages and repositories
Services
Firewall rules
File systems
Storage devices
File content
Archiving
Scheduled tasks
Security
Users and groups
Ansible Roles
Create roles
Download roles from an Ansible Galaxy and use them
Ansible Advanced Features
Create and use templates to create customized configuration files
Use Ansible Vault in playbooks to protect sensitive data