Networking - MCQ Practice Questions

Which layer of the OSI model is responsible for routing packets across networks?

What is the primary function of the Data Link Layer in the OSI model?

Which protocol operates at the Transport Layer (Layer 4) of the OSI model?

The Physical Layer of the OSI model deals with which of the following?

Which layer of the OSI model is responsible for managing dialogs and session establishment?

A company wants to convert data formats between different systems. Which OSI layer should handle this?

Which of the following is NOT a function of the Application Layer (Layer 7)?

In the OSI model, which layers are considered the 'Media Layers'?

Which device operates primarily at Layer 3 of the OSI model?

TCP/IP model has fewer layers than the OSI model. How many layers does the TCP/IP model have?

A packet arrives at a router with a damaged frame header. At which OSI layer should this be detected?

Which of the following scenarios requires Layer 7 (Application Layer) involvement?

In a network troubleshooting scenario, ping command works but HTTP requests fail. Which OSI layer likely has the issue?

Which OSI layer concept is MOST relevant when implementing Quality of Service (QoS) in modern networks?

A VPN (Virtual Private Network) operates across multiple OSI layers. Which layer is MOST critical for VPN encryption?

In the context of the OSI model, what is the relationship between PDUs (Protocol Data Units) at different layers?

A network administrator observes that devices on the same switch can communicate, but cross-switch communication fails. Which layer's configuration is most likely faulty?

Which statement BEST describes the difference between connection-oriented and connectionless communication in the OSI model?

For a real-time video conferencing application, which OSI layer protocol should be prioritized and why?

Which of the following layers of the OSI model is responsible for converting data into signals suitable for transmission over a physical medium?