Installing RabbitMQ - Practice Exercises

Challenge - 5 Problems

💻 Command Output

intermediate

RabbitMQ service status after installation

After installing RabbitMQ on a Linux system using the package manager, what is the expected output of the command systemctl status rabbitmq-server if the service is running correctly?

RabbitMQ

systemctl status rabbitmq-server

A

● rabbitmq-server.service - RabbitMQ broker
   Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2024-06-14 10:00:00 UTC; 5min ago

B

● rabbitmq-server.service - RabbitMQ broker
   Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; disabled; vendor preset: enabled)
   Active: inactive (dead) since Fri 2024-06-14 10:00:00 UTC; 5min ago

C Unit rabbitmq-server.service could not be found.

D

● rabbitmq-server.service - RabbitMQ broker
   Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2024-06-14 10:00:00 UTC; 5min ago

💡 Hint

Look for the service status that shows it is running and enabled.

When RabbitMQ is installed and running properly, the systemd service status shows it as active (running) and enabled to start on boot.

🧠 Conceptual

intermediate

RabbitMQ dependencies before installation

Which of the following is a required dependency that must be installed before installing RabbitMQ on a Debian-based system?

A Node.js runtime

B MySQL database server

C Apache web server

D Erlang runtime environment

💡 Hint

RabbitMQ is built on top of a specific programming language runtime.

RabbitMQ requires the Erlang runtime environment because it is written in Erlang and depends on it to run.

❓ Configuration

advanced

Enabling RabbitMQ management plugin

Which command correctly enables the RabbitMQ management plugin after installation?

A rabbitmq-plugins enable rabbitmq_management

B rabbitmqctl enable_management_plugin

C rabbitmq-manage enable plugin management

D rabbitmq-enable plugin management

💡 Hint

The command uses 'rabbitmq-plugins' to manage plugins.

The correct command to enable the management plugin is 'rabbitmq-plugins enable rabbitmq_management'.

❓ Troubleshoot

advanced

Diagnosing RabbitMQ service failure

After installing RabbitMQ, the service fails to start. Which log file should you check first to find detailed error messages on a Linux system?

A /var/log/syslog

B /var/log/rabbitmq/[e-mail]

C /etc/rabbitmq/rabbitmq.conf

D /var/log/apache2/error.log

💡 Hint

RabbitMQ logs its own errors in a specific directory under /var/log.

RabbitMQ writes detailed logs in /var/log/rabbitmq/ with filenames like [e-mail].

🔀 Workflow

expert

Correct order to install RabbitMQ on Ubuntu

What is the correct order of commands to install RabbitMQ on Ubuntu, including adding the repository, updating packages, installing Erlang, and installing RabbitMQ?

A 2,3,1,4

B 1,3,2,4

C 3,1,2,4

D 3,2,1,4

💡 Hint

Add the repository key before updating packages.

First add the repository key (3), then update package lists (1), install Erlang (2), and finally install RabbitMQ (4).