Quiz: Linux Distribution Comparison

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4 questions

L0 (1 questions)

1. What are the key differences between the Red Hat and Debian Linux families?

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Red Hat (RHEL, Fedora, Alma, Rocky): dnf/rpm packages, SELinux, firewalld, NetworkManager/nmcli. Debian (Debian, Ubuntu): apt/dpkg packages, AppArmor, ufw, Netplan (Ubuntu) or ifupdown (Debian). Both use systemd. Log locations differ: /var/log/messages vs /var/log/syslog.

L1 (2 questions)

1. When should you choose Ubuntu LTS vs RHEL for production servers?

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RHEL: enterprise/regulated environments, vendor support SLAs, compliance (FIPS, STIG), certified hardware. Ubuntu LTS: cloud-native workloads (default AWS AMI), developer-friendly, wide software support, cost-sensitive (free or cheap ESM). Both offer 10+ year support. Choice often depends on existing ecosystem and compliance requirements.

2. How do you handle mixed Debian/RHEL fleets in Ansible automation?

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Use ansible_os_family fact for conditionals: when: ansible_os_family == 'Debian'. Use ansible.builtin.package (generic) instead of apt/dnf. Use variables for package names (httpd vs apache2). Separate group_vars per distro family. Best practice: standardize on ONE distro per environment role. *Common mistake:* Common mistake: hardcoding dnf or apt module — breaks on the other family. Use the generic 'package' module or conditional blocks.

L2 (1 questions)

1. What is the difference between rolling release and fixed release distributions, and when to use each?

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Fixed (Debian Stable, Ubuntu LTS, RHEL): major versions with backported security fixes, predictable, stable. Upgrade between versions. Rolling (Arch, Tumbleweed): continuous updates, always latest packages, occasional breakage. Rule: fixed for production servers (stability), rolling for dev workstations (latest features). Never use rolling release for production.