CompTIA Network+ · N10-009
Objective 1.5: Compare and contrast common port numbers, protocols, services, and traffic types
Practice questions for Network+ objective 1.5, “Compare and contrast common port numbers, protocols, services, and traffic types.” Every question is original, written to the N10-009 exam objectives, and comes with a full explanation — answer them below to see instant grading.
This objective sits in Domain 1.0: Networking Concepts, which is about 23% of the exam — so mastering it moves your readiness score meaningfully.
1.Which protocol and port are used by SNMP for network device monitoring and management traps?
2.A technician needs to copy a file securely between two Linux servers using an encrypted protocol. Which protocol and port should be used?
3.Which of the following is a connection-oriented protocol that guarantees delivery through acknowledgments and retransmissions?
4.A network administrator needs to configure a server for remote desktop access to Windows servers. Which port must be allowed through the firewall?
5.Which email retrieval protocol uses TCP port 143 and keeps messages on the server, allowing multi-device access?
Practice every objective, adaptively
CertBench tracks your score on 1.5 and every other objective, then builds a daily plan that targets your weakest spots. Start with the free diagnostic.
Take the free diagnostic