Level 3 - TCP/IP Model Layers

The TCP/IP model's Application layer encompasses which layers of the OSI model?

• a) Physical, Data Link, and Network
• b) Network, Transport, and Session
• c) Session, Presentation, and Application
• d) Transport, Session, and Presentation

Which protocol associated with the Transport layer in the TCP/IP model is responsible for error checking and reliable packet delivery?

• a) HTTP
• b) TCP
• c) FTP
• d) ARP

What is the primary responsibility of the Internetwork layer in the TCP/IP model?

• a) Error checking and reliable packet delivery.
• b) Moving packets through a network.
• c) Breaking the data stream into segments.
• d) Formatting messages on the transmission medium.

The Network or Link layer in the TCP/IP model corresponds to which layers in the OSI model?

• a) Physical and Data Link layers
• b) Data Link and Network layers
• c) Network and Transport layers
• d) Transport and Session layers

Which of the following protocols is NOT associated with the Application layer of the TCP/IP model?

• a) HTTP
• b) DNS
• c) SMTP
• d) ARP