_________ interconnected global computer networks
group of interconnected computer networks

what is Basic technology structure ?

________ Subset of Internet computers and Includes easy-to-use interfaces

Web Stand for _____

______ Packet network connected four computers (1969)

_______ earliest network (became the Internet)

(1970) E-mail and Networking technology uses

______Remote file transfer and computer access

______ Read and post articles and Newsgroups (topic areas)

_______ Research and academic communities

_________ Provided funding and Prohibited commercial network traffic

Businesses turned to commercial e-mail providers

select Packet-Switched Networks

__________ Network of computers located close together

_________ Networks of computers connected over greater distances

LAN stand for ________

WAN stand for ________

______ Combination of telephone lines and closed switches connecting them to each other

________ Centrally controlled, single-connection model
Single electrical path between caller and receiver

Circuit switching is Works well for telephone calls

Does not work as well for_____________

what is Circuit-switched network problem ?

what is Circuit-switched network solution ?

Packet-switched is ___________

what is Packets ?

packet Travel along interconnected networks and Can take different paths

May arrive out of order

Destination computer : Collects packets , Reassembles original file or e-mail message

______ Public availability

_______ leased-line connection – Physically connects intranets to one another

________ Permanent telephone connection between two points

Leased line Advantage _____________

Leased line Drawback_____________

Scaling problem is subtraction companies

_______________ Connection via public networks and protocols and Sends sensitive data

Uses __________ (encapsulation) system it is Private passageway through public Internet and Secure transmission

_________ An internet within the boundaries of the organization
Interconnected private networks

_____________An internet that extends beyond the organization

and incorporates networks of outside entities

Technologies (public networks, private networks, or VPNs)

independent of organizational boundaries

_______________ collection of network data rules
Includes transmission rules and Computers must use

ARPANET is Network Control Protocol (NCP)

NCP stand for ___________

__________ Controls message or file disassembly into packets before Internet transmission and Controls packet reassembly into original formats at destinations

Internet Protocol Version 4 How many bits?

Internet Protocol version 6 How many bits?

They use Base 2 (binary) for Internet Protocol Version 4

Base 2 (binary) number system
Computers use for internal calculations
Digit 0 or a 1 (on or off condition)

Base 2 (binary) number system
Four numbers separated by periods

IP address range 0.0.0.0

IPv4 and IPv6 not directly compatible

Shorthand notation system for expressing addresses
complex eight groups of 16 bits

Select Electronic Mail Protocols

Internet Protocol version 6 (IPv6) Advantages
- Packet format change eliminates unnecessary fields
- Adds fields for security, other optional information

________ Formatted according to common set of rules and Client/server structure

_______ Computer devoted to e-mail handling and Stores, forwards e-mail messages

_________ Reads and sends e-mail to Communicates with e-mail server software

Specifies mail message format
Describes mail administration e-mail server
Describes mail transmission on the Internet

are called __________

Sends mail to user’s computer; deletes from server

Sends mail to user’s computer; does not delete
Asks if new mail arrived

are called __________

_____ Sends Web page file requests to other computers (Web servers)

_______ Receives requests from many different Web clients

_______ Combination: client computers, server computers

________ internet Web page file delivery rules

________ User types protocol name
Followed by “//:” characters before the domain name

Combination: protocol name, domain name
Locates resources (Web page) on another computer (Web server)

_______ Software running on Internet-connected computers
Generates network traffic

Web software: largest single traffic category
Outpaces: e-mail, file transfers, and other data transmission traffic

Key technological Web elements

_________ Stores Hypertext Markup Language (HTML) files
Computers connect and read files

Web server is Hypertext servers used on the Web

_________ Set of codes (tags) attached to text
Describes relationships among text elements

_______ Points to another location
Same or another HTML document

________ information that is stored in databases and is accessible to users through Web interfaces – Potentially trillions of Web pages available using deep Web

Domain names are Sets of words assigned to specific IP addresses

Select three parts separated by periods

Internet Corporation for Assigned Names and Numbers (ICANN)

Manages addition of ( gTLDs ): less stringent in recent years

this is the last slide , just read it