A network engineer is troubleshooting a connectivity issue between two hosts on the same VLAN. The hosts can ping each other, but they cannot communicate using a specific application that uses UDP. The engineer has verified that the application is configured correctly and that the hosts have valid IP addresses. Which OSI layer should the engineer investigate next?

Transport layer, because the application uses UDP and the engineer should check for port or firewall issues.

Network layer, because the engineer should check the routing configuration.

Data Link layer, because the engineer should check the switch configuration.

Physical layer, because the engineer should verify the cable connections.

Which of the following is a responsibility of the Session layer?

Synchronizing data exchange between applications

Compressing data for transmission

What is the primary purpose of the OSI model in networking?

To enforce security policies across all network devices

To define the physical layout of network cables and connectors

To specify the exact protocols used on the internet

To provide a standardized framework for understanding and implementing network communication

Which of the following is a key benefit of using the OSI model?

It allows different vendors' equipment to communicate without any configuration

It eliminates the need for network security measures

It simplifies troubleshooting by isolating network functions into distinct layers

It guarantees faster network speeds by reducing overhead

CompTIANetwork+

Domain 1Objective 1

OSI Model Layers N10-009 Practice Questions (Page 1)

Part of the Networking concepts domain, which makes up ~25% of our current practice bank. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–15 in this domain), expect 1–2 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

10concepts

Questions 1–5

1expert · medium
A network engineer is troubleshooting a connectivity issue between two hosts on the same VLAN. The hosts can ping each other, but they cannot communicate using a specific application that uses UDP. The engineer has verified that the application is configured correctly and that the hosts have valid IP addresses. Which OSI layer should the engineer investigate next?
Select an answer first
2foundation · easy
Which of the following is a responsibility of the Session layer?
Select an answer first
3foundation · easy
What is the primary purpose of the OSI model in networking?
Select an answer first
4foundation · easy
Which protocol operates at the Application layer?
Select an answer first
5foundation · easy
Which of the following is a key benefit of using the OSI model?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to N10-009

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by CompTIA. “N10-009” is a trademark of its owner, used for identification only.

OSI Model Layers N10-009 Practice Questions (Page 1)

Questions 1–5

Which of the following is a responsibility of the Session layer?

What is the primary purpose of the OSI model in networking?

Which protocol operates at the Application layer?

Which of the following is a key benefit of using the OSI model?

Keep studying — Networking concepts