Red Hat System Administration II (RH134) – RHEL 9 Quiz Questions and Answers
Answer :
df -T
Explanation :
The df -h command shows mounted devices and the amount of disk space currently in use on these devices. The -T option helps in recognizing real file systems (as opposed to kernel interfaces) because it shows the file system type as well.
To provide centralized file storage and sharing over a network.
Explanation :
Network-Attached Storage (NAS) with NFS in a Red Hat Enterprise Linux environment is used to provide centralized file storage and sharing, allowing multiple clients to access the files over a network.
It executes container processes in isolated environments
Explanation :
The container runtime is responsible for executing and managing the container processes, ensuring that applications run in isolated environments using shared system resources effectively.
To prevent unauthorized processes from accessing sensitive ports
Explanation :
Correct labeling with SELinux types helps to prevent unauthorized processes from accessing or communicating through sensitive or critical ports, thus safeguarding the server environment.
The 'podman run -d -p 8080:80 httpd' command runs a container in detached mode with port 8080 on the host mapped to port 80 in the container where the HTTP server listens.
Containers share the host operating system's kernel, which reduces overhead and allows for faster deployment and scaling compared to fully virtualized environments.
Reviewing and adjusting port labeling rules is a logical initial step to address frequent port rejections by ensuring labels are correctly and suitably applied.
A server firewall is used to control ingress and egress network traffic by setting up rules that decide whether data packets should be blocked or allowed.
