Layered Models (OSI TCP/IP) and Protocols

The rules that govern network communications including the message format, message size, timing, and encapsulation, are known as network:

• encoding

• protocols

• messaging

• signaling

The IETF (Internet Engineering Task Force) records and publishes internet standards in documents known as:

• Internet Specification Standards (ISS)

• IETF Standards Documents (ISD)

• Internet Protocol Standards (IPS)

• Request for Comments (RFC)

What is the purpose of the OSI physical layer?

• controlling access to media

• transmitting bits across the local media

• performing error detection on received frames

• exchanging frames between nodes over physical network media

Which statement is correct about network protocols?

• Network protocols define the type of hardware that is used and how it is mounted in racks.

• They define how messages are exchanged between the source and the destination.

• They all function in the network access layer of TCP/IP.

• They are only required for exchange of messages between devices on remote networks.

What networking term describes a particular set of rules at one layer that govern communication at that layer?

• duplex

• encapsulation

• error checking

• protocol

Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?

• application

• presentation

• session

• transport

• network

What is the purpose of protocols in data communications?

• specifying the bandwidth of the channel or medium for each type of communication

• specifying the device operating systems that will support the communication

• providing the rules required for a specific type of communication to occur

• dictating the content of the message sent during communication

Which protocol is responsible for guaranteeing reliable delivery?

• Ethernet

• TCP

• IP

• HTTP

hich three layers of the OSI model make up the application layer of the TCP/IP model? (Choose three.)

• data link

• network

• session

• presentation

• application

Which organization publishes and manages the Request for Comments (RFC) documents?

• IEEE

• ISO

• IETF

• TIA/EIA