TCP/IP

In the current TCP/IP model, the Application, Presentation, & Session layers from the OSI model are combined into which layer?

• Data Link

• Physical

• Transport

• Application

• Network

The protocol(s) used at the Transport layer is ...

• User Datagram Protocol (UDP)

• Transmission Control Protocol (TCP)

• Both are transport layer protocols

What protocol(s) is used at the Network layer?

• Transmission Control Protocol (TCP)

• Both options are protocols used at the Network layer

• Internet Protocol (IP)

What function is performed at the Data Link layer?

• Move the data from device to device across the network

• Sequence the data for reassembly at the destination

• Packets are addressed so they can be routed through the network to the destination

Why were the Data Link & Physical layers divided into two separate layers in the current TCP/IP model?

• Because the number of protocols grew too large for the link layer to handle it by itself

• Because networks use different types of transmission media (ethernet wire, fiber optic cable, and radio signals) to transmit bits

• Because the original TCP/IP model was too complicated for many typical uses

True or False: the application layer defines how applications use the network, not how the applications actually work

• True

• False

Transport layer protocols

• convert the data into bits to be transmitted

• use port numbers to track sessions

• address the traffic for its destination

What information is found in a TCP header?

• Destination port

• Source port

• Both options are found in a TCP header

What is the combination of the data and TCP header called?

• frame

• segment

• packet

What information is included in the IP header added to a TCP segment?

• Both answers are included in the IP header

• Destination IP address

• Source IP address