Chapter 3

Protocols must account for the following requirements:

. An identified sender and receiver . common language and grammar . speed and timing of delivery . confirmation or acknowledgment requirements

Common networking protocols:

. Hypertext Transfer Protocol (HTTP) . Transmission Control Protocol (TCP) . Internet Protocol (IP)

Personal letter contains the following elements:

. an identifier of the recipient . a salutation or greeting . the message content . a closing phrase . an identifier of the sender

What is an advantage of network devices using open standard protocols?

A client host and a server running different operating systems can successfully exchange data

Refer to the exhibit. HostA is attempting to contact Server B. Which two statements correctly describe the addressing that HostA will generate in the process?

A frame with the destination MAC address of RouterA A packet with the destination IP address of ServerB

What three application layer protocols are part of the TCP/IP protocol suite? (choose three)

DHCP DNS FTP

A web client is sending a request for a webpage to a web server. From the perspective of the client, what i the correct order of the protocol stack that is used to prepare the request for transmission?

HTTP, TCP, IP, Ethernet

A protocol suite

Is a set of protocols that work together to provide comprehensive network communication services.

What is an advantage of using standards to develop and implement protocols?

Products from different manufactures can interoperate successfully

Which statement is true about the TCP/IP and OSI models?

The TCP/IP transport layer and OSI Layer 4 provide similar services and functions

What will happen if the default gateway address is incorrectly configured on a host?

The host cannot communicate with hosts in other networks

Which statement is correct about network protocols?

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

Unicast:

a one to one delivery option, there is only one destination for the message

Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model?

application presentation session

What type of communication will send a message to all devices on a local area network?

broadcast

Which address does a NIC use when deciding whether to accept a frame?

destination MAC address

What process is used to place one message inside another message for transfer from the source to the destination?

encapsulation

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

flow control

Which PDU format is used when bits are received from the network medium by the NIC of a host?

frame

At which layer of the OSI model would a logical address be encapsulated?

network layer

What are proprietary protocols?

protocols developed by organizations who have control over their definition and operation

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

segment

Which characteristic describes the default gateway of a host computer?

the logical address of the router interface on the same network as the host computer