Chapter 3

Encapsulation Example

data, tcp, ip, ethernet

Which logical address is used for delivery of data to a remote network?

destination IP address

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

destination MAC address

De-encapsulation example

ethernet, ip, tcp, data

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

(TCP/IP) application protocol

govern the way a web server and host interacts

What is the general term that is used to describe a piece of data at any layer of a networking model?

protocol data unit

What are proprietary protocols?

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

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

transport

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.​

If the default gateway is configured incorrectly on the host, what is the impact on communications?

The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

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.

OSI

APS-TN-DP. Communication between network and end user

TCP/IP

ATIN. Communication protocol. connecting host to internet.

OSI layers

Application- end user. presentation - translates and formats. session - conversation between two end points. transport - ensure for error free message ( Flow control). network - packets. IP address. switching and routing. logical address encapsulated data link. Frames. MAC address. physical. hardware. bits

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

DHCP, DNS, FTP(File Transfer Protocol)

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

DNS, FTP and DHCP

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

Which three acronyms/initialisms represent standards organizations? (Choose three.)

IANA, IEEE, IETF

EIA

The Electronic Industries Alliance. an international standards and trade organization for electronics organizations.

ISOC

The Internet Society. responsible for promoting open development,evolution, and Internet use throughout the world.

Which statement is correct about network protocols?

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

Why are open standards important in the data communications industry?

They enable interoperability between software and hardware from different vendors.

if a host 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.

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

application,presentation and session

Which message delivery option is used when all devices need to receive the same message simultaneously?

broadcast

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

data link layer

What layer of the TCP/IP protocol model determines the best path through the network?

internet

What type of delivery uses data link layer addresses?

local delivery

(TCP/IP) transport protocol

managing the individual conversations between web servers and web clients. segment

What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)

message encoding, message size and delivery options

What type of message is sent to a specific group of hosts?

multicast

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

network layer

The MAC address of a PC does not change when the PC is moved to a different network because the MAC address is embedded in the .... of the PC.

nic

(TCP/IP) network access protocol

preparing packets to be transmitted over the network media.

What is the purpose of protocols in data communications?

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

IANA

responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers.

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

segment

t

t

internet protocol

taking the formatted segments from the transport protocol, encapsulating them into packets, assigning them the appropriate addresses, and delivering them across the best path to the destination host

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. The default gateway is the IP address of an interface on the router on the same network as the sending host.

message sizing

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

message encoding

the process of converting information into another, acceptable form

message encapsulation

the process of placing one message format inside another message format

ISO

the world's largest developer of international standards for a wide variety of products and services.