Apple Certified Support Professional (ACSP) Practice Exam 2025 - Free ACSP Practice Questions and Study Guide

Server Message Block (SMB) is a network file sharing protocol that allows applications to read and write to files and request services from server programs. However, it typically operates over TCP ports, specifically TCP port 445.

The services that run on UDP ports 137 and 138 are actually associated with NetBIOS over TCP/IP, which aids in file and print sharing as well as name resolution in Windows networks. While SMB is closely related to these processes, the protocol itself does not run on the specified UDP ports.

Dynamic Service Discovery and Bonjour are terms often used interchangeably to refer to Apple's implementation of zero-configuration networking, enabling devices to discover each other on a local network. Bonjour utilizes multicast DNS (mDNS) and operates over UDP ports 5353 and can also make use of UDP ports 1900 for SSDP (Simple Service Discovery Protocol).

IPSec is not related to file sharing or discovery services; instead, it is a framework for securing Internet Protocol communications by authenticating and encrypting each IP packet of a communication session.

Given this context, the answer chosen is not aligned with the protocols that run over UDP ports 137 and 138. They are primarily designed for network services related to name resolution and allow devices to communicate