ITNv6 Chapter 10

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SMB

Application layer protocol that is used to provide file-sharing and print services to Microsoft applications

POP3

Application layer protocol that uses message types such as GET, PUT and POST

-FTP -HTTP -SMTP

A manufacturing company subscribes to certain hosted services from its ISP. The services that are required include hosted world wide web, file transfer, and e-mail. Which protocols represent these three key applications?

IMAP

A protocol that allows for easy, centralized storage and backup emails that would be desirable for a small-to medium sized business.

IMAP (Internet Message Access Protocol)

A standard email protocol that stores email messages on a mail server, but allows the end user to view and manipulate the messages as though they were stored locally on the end user's computing device(s).

POP (Post Office Protocol)

A type of computer networking and Internet standard protocol that extracts and retrieves email from a remote mail server for access by the host machine. POP is an application layer protocol in the OSI model that provides end users the ability to fetch and receive email.

A workstation initiates a DNS request when the user types www.cisco.com in the address bar of a web browser.

An example of network communication that uses the client-server model.

HTTPS

An internet communication protocol that protects the integrity and confidentiality of data between the user's computer and the site. Users expect a secure and private online experience when using a website.

Server Message Block Protocol

Clients establish a long term connection to servers.

Application Layer

Layer of the TCP/IP model that is used for formatting, compressing and encrypting data

GET

Message type used by an HTTP client to request data from a web server.

TCP/IP Application Layer

OSI Session, Presentation and Application Layers

.com

Part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain

Telnet

Provide remote access to servers & networking devices

FTP

The client can download data from or upload data to the server.

to manually query the name servers to resolve a given host name

The function of the Nslookup utility

-The destination IP address is 255.255.255.255. -The message comes from a client seeking an IP address. -All hosts receive the message, but only a DHCP server replies.

Three statements that describe a DHCP Discover message.

-the creation and maintenance of dialogue between source and destination applications -closest to the end user

Two characteristics of the application layer of the TCP/IP model.

Peer to peer

Two students are working on a network design project. One student is doing the drawing, while the other student is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used?

-mapping name-to-IP addresses for internal hosts -forwarding name resolution requests between servers

Two tasks that can be performed by a local DNS server

Both models support devices in server and client roles.

What do the client/server and peer-to-peer network models have in common?

IMAP

allows viewing of messages on email clients

HTTP

displays web pages

DHCP

dynamically assigns IP addresses to clients

DNS

maps URLs to numerical addresses

DNS

resolves Internet names to IP addresses

SMTP

sends email messages


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