Networking quiz 2nd

What is done with the data at the physical layer?

• The physical layer header is added to the frame to prepare it for transmission

• Both occur at the physical layer

• The data is converted into its intended transmission media (electrical, light, radio wave) and sent down its transmission path

True or False: the source and destination MAC addresses in the frame change at each hop in the path of the packet to match the MAC address of the current device and the MAC address of the next device in line

• True

• False

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

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

• True

• False

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

• frame

• segment

• packet

What information is found in a TCP header?

• Destination port

• Source port

• Both options are found in a TCP header

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

What is the FIRST thing the destination does at the network layer with a packet it receives?

• Pass the packet to the transport layer

• Remove the IP header

• Reassemble the data once it receives all the packets

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)

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

• User Datagram Protocol (UDP)

• Transmission Control Protocol (TCP)

• Both are transport layer protocols