CREST Practitioner Security Analyst (CPSA) Practice

Disable ads (and more) with a membership for a one time $2.99 payment

Master the CREST Practitioner Security Analyst Exam. Prepare with quizzes and comprehensive study guides that include tips and explanations. Excel in your certification journey!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is associated with port 546?

DHCPv4 Server
DHCPv6 (client)
DNS
SMTP

The correct answer is: DHCPv6 (client)

The association of port 546 is specifically tied to DHCPv6, which stands for Dynamic Host Configuration Protocol for IPv6. This port is used by DHCPv6 clients to send solicitations to the DHCPv6 server on port 547. In a network utilizing IPv6, the DHCPv6 client communicates with the server to configure IP addresses and other related network settings. Understanding the purpose of this protocol is crucial for network configuration and management, especially as organizations transition from IPv4 to IPv6. DHCPv6 helps allocate IP addresses dynamically, simplifying the management of network resources in environments where manual configuration would be impractical. In contrast, DHCPv4 is related to port 67, while DNS typically operates on ports 53, and SMTP uses port 25. The specifics of DHCPv6 and its port assignments are what make the correct answer valid.