Chapter 3 - Network Protocols and Communications

Host A is attempting to contract Server B, which two statements correctly describe the addressing that Host A will generate in the process?

- A frame with the destination MAC address of Router A - A packet with the destination IP address of Server B

Description of protocol function while taking into consideration that a network client is visiting a website

Application protocol --> governing the way a web server and a web client Internet Protocol --> taking the segments from the transport protocol, encapsulating them into packets, and assigning them with appropriate Network Access Protocol --> preparing packets to be transmitted over the network media Transport Protocol --> managing the individual conversations between web servers and web clients

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

DHCP DNS FTP

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

HTTP, TCP, IP, Ethernet

Organizations & their descriptions

ISOC --> promotes open development, evolution, and the use of the Internet throughout the world ISO --> largest developer of international standards in the world for a variety of products and services; known for its Open Systems Interconnection (OSI) reference model IANA --> responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers

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

Products from different manufacturers can inter-operate successfully

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

The host cannot communicate with hosts in other networks

Which characteristics described the default gateway of a host computer?

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

Message sizing

The process of breaking up a long message into individual pieces before being sent over network

Message Encoding

The process of converting information for. One format into another acceptable for transmission

Message encapsulation

The process of placing one message format inside another message format

Which statement is correct about network protocols?

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

If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

application, transport, Internet, and network access layers

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

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

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