Apache Spark Certification Practice Test

The default port for a Mesos cluster is 5050. This port is used by the Mesos master and slave nodes to communicate and manage resources within the cluster. In a Mesos environment, the master node listens on port 5050 for incoming requests from slave nodes, frameworks, and clients. By utilizing this specific port, Mesos ensures that its default communication channel is standardized, allowing for consistent connection points across different setups and deployments.

The other options represent ports that are commonly associated with various other services or components in the big data ecosystem or other web applications but are not the designated port for Mesos clusters. Understanding the architecture and designated communication ports is crucial for configuring and troubleshooting distributed systems effectively.