CH 8 Networks and Telecommunications

IT stands for

information technology

Most management information systems (MIS) today depend on digital networks to communicate different types of information: DGVV

• data

• graphics

• video

• voice

Telecommunication systems allow the transmission of data over what two networks?

• private

• public

__ systems allow the transmission of data over what private and public networks?

Telecommuication

t/f: Telecommunication systems make modern business communication possible across long distances.

true

A network is a communications system created by…

two or more linking devices

A network is a ___ system created by two or more linking devices.

communications

The ___ is the world’s largest and most widely used network.

Internet

The Internet is known as the global “ … “

network of networks

t/f: Networks can range from:

• Small networks with two computers

• To the largest network: the Internet

true

The two Main Benefits of Networks: (CS)

• communication

• sharing

Networks enable users to share resources like:

• printers

• files

• software

Most corporate networks are made up of combinations of what three networks?: (LWM)

1. Local area

2. Wide area

3. Metropolitan area

A LAN connects computers that are…

close to each other

Common locations for LAN’s: (3)

• offices

• homes

• school

• Which networks are used for sharing resources, such as:

  • Files

  • Printers

  • Games

  • Applications

Local area network

• LANs often connect to:

  • Other LANs

  • The Internet

  • __ Area Networks

Wide

Wide Area Network (WAN)

• A WAN spans a large geographic area, such as: (3)

• state

• province

• country

WANs usually connect multiple __ networks.

smaller

WANs usually connect multiple smaller networks such as:

• LANS

• MANS

The most popular WAN in the world is:

the Internet

A MAN is a network that usually spans a __.

city

A MAN is a network is often used by… (3)

• colleges

• universities

• large companies with campus-styled locations

Companies can gain a strategic advantage by creating direct data communication links with…

customers and suppliers

Networks are not just for communication — they can create ___ advantage.

competitive

A typical network includes how many main components?

four

A NIC is a hardware card that connects a computer to a __.

network

Network Interface Card (NIC) is a __card.

hardware

What component of a network allows the computer to send and receive messages?

the NIC

What component of a network Ensures all devices communicate in the same language?

protocol

A Cable (Transmission Medium) connects ___ in a network.

computers

The Cable component is the medium through which __ travels.

data

Which component of a network are traffic control devices that manage and direct data traffic across the network?

Hub/Switch/Router

Which classification of networks describes how computers interact on the network?

Architecture

Topology describes the __ __ of the network.

physical layout

Which classification of networks describes the physical transmission medium?

Media

The two primary network architectures are:

1. peer-to-peer

2. client/server

A peer-to-peer network uses a centralized or decentralized network?

decentralized

Which Type of Network Architectures involves easy, cheap, and quick to set up:

Peer to peer

t/f: A client/server network separates roles between computers.

true

In a Client/Server Network, a client is a computer that ...

requests information

In a Client/Server Network, a server is a computer that ...

provides information

A __ operating system (NOS) manages the network.

Network

___-switching is fundamental to client/server networks.

Packet

In Packet-Switching, the sending computer breaks a message into..

smaller units

In Packet-Switching, the sending computer breaks a message into smaller units called __.

packets

Each packet in Packet-Switching contains a __ address.

destination

The Role of Routers in Packet-Switching __ each packet.

examines

The Role of Routers in Packet-Switching decides the best __ for each packet to arrive to its destination.

path

t/f": Packets in Packet-Switching can take different routes, but still arrive correctly

true

Which Network Topology are all devices connect to a single central cable (backbone)?

Bus

Which Network Topology are all devices connect to a central hub?

Star

Which Network Topology are all devices connected in a closed loop?

Ring

Which Network Topology are multiple topologies combined?

Hybrid

Which Network Topology are where devices connected via a wireless signal and access points?

Wireless

What adjective of protocols refers to ability for different systems to share data and work together?

interoperability

An Ethernet is a LAN/WAN/MAN technology.

LAN

t/f: Ethernet operates at a physical layer and a data link layer.

true

The most widely used communication protocol:

TCP/IP

TCP stands for..

transmission control protcol

TCP (Transmission Control Protocol) is responsible for ensuring..

data delivery

IP (protocol) stands for..

Internet protocol

IP (Internet Protocol) is responsible for…

addressing and routing data

The Application Layer for the TCP/IP Four-Layer Model is an interface for __ and __.

users and applications

Which layer for the TCP/IP Four-Layer Model handles end-to-end data transmission?

Transport

Which layer for the TCP/IP Four-Layer Model breaks data into packets?

Internet

Which layer for the TCP/IP Four-Layer Model places packets onto the network?

Network Interface Layer

What is the term for the unique 32-bit number assigned to each device?

IP address

An IP address identifies the ___ on a network.

location

IPv6 replaced __.

IPv4

t/f: The IPv6 version allows more address space.

true

The challenge of the IPv6 is that it requires major ___ changes.

infrastructure

The challenge of the IPv6 is the slow ___.

adoption

TCP/IP Applications are key __.

protocols

The FTP (File Transfer Protocol) of TCP/IP Applications transfers __.

files

The SMTP (Simple Mail Transfer Protocol) of TCP/IP Applications transfers __.

emails

The Telnet of TCP/IP Applications provides __ __ to servers.

remote

The HTTP (Hypertext Transfer Protocol) of TCP/IP Applications enables …. to communicate.

web browsers and servers

The SMNP (Simple Network Transfer Protocol) of TCP/IP Applications is used for managing network __.

devices

The OSI (Open Systems Interconnection) model is a 7-layer framework for understanding network __.

communication

Each layer of the Open Systems Interconnection model has a specific role and works together to enable ___.

communication

Network transmission media refers to the ___ __ used to carry signals between computers.

physical path

Network transmission media refers to the physical path used to carry ___ between computers.

signals

When information is sent across a network, it is converted into __ signals.

electrical

Signals are transmitted as __ and __ across a network:

• electromagnetic waves

• voltage pulses