Lesson 2: The Internet: Connecting and Communicating Online (2)

Question 1

Computer ____ describes a process in which two or more computers or devices transfer data, instructions, and information

Answer 1

communications

Question 2

Uses of Computer Communications

Answer 2

1. Blogs
2. Chat rooms
3. E-mail
4. Fax
5. FTP
6. Instant messaging
7. Internet
8. Newsgroups
9. RSS
10. Video conferencing
11. VoIP
12. Web
13. Web 2.0
14. Web folders
15. Wikis

Question 3

Allows users to send and receive short text messages on a phone or other mobile device or computer

Answer 3

Text messaging

Question 4

Allows users to send pictures and sound files

Answer 4

Picture messaging

Question 5

Allows users to send pictures and sound files

Answer 5

Video messaging

Question 6

Allows wireless users to exchange real-time messages with one or more other users

Answer 6

Wireless instant messaging

Question 7

Allow people to connect wirelessly to the Internet from home, work, school, and in many public locations

Answer 7

Wireless Internet access points

Question 8

A coffeehouse, restaurant, or other locations that provides personal computers with Internet access to its customers

Answer 8

Cybercafé

Question 9

A navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites

Answer 9

global positioning system (GPS)

Question 10

Includes tools that enable users to share documents via online meetings and communicate with other connected users

Answer 10

Collaboration software

Question 11

• Helps groups of people work
  together on projects and
  share information over a
  network
• Component of workgroup
  computing
• Major feature is group
  scheduling

Answer 11

Groupware

Question 12

• Allows someone to leave a
  voice message for one or
  more people
• Computer in voice mail
  system converts an analog
  voice message into digital
  form
• A voice mailbox is a storage
  location on a hard disk in the
  voice mail system

Answer 12

Voice mail

Question 13

Enable programmers to create applications that communicate with other remote computers over the Internet or on an internal business network

Answer 13

Web services

Question 14

A Web application that combines services from two or more sources

Answer 14

Mashup

Question 15

A collection of computers and devices connected
together via communications devices and transmission media

Answer 15

Network

Question 16

A network the connects computers and devices in a limited geographical area

Answer 16

local area network (LAN)

Question 17

A LAN that uses no physical wires

Answer 17

Wireless LAN (WLAN)

Question 18

Connects LANs in a metropolitan area

Answer 18

Metropolitan area network (MAN)

Question 19

A network that covers a large geographical area

Answer 19

Wide area network (WAN)

Question 20

The design of computers, devices, and media on a network is sometimes called the _____

Answer 20

network architecture

Question 21

Describes an Internet network on which users access each other’s hard disks and exchange files directly over the Internet

Answer 21

P2P

Question 22

Refers to the layout of the computers and devices in a communications network

Answer 22

Network topology

Question 23

An internal network that uses Internet technologies

Answer 23

Intranet

Question 24

Allows customers or suppliers to access part of its intranet

Answer 24

Extranet

Question 25

Network Communications Standards

Answer 25

1. Ethernet 2. Token ring 3. TCP/IP 4. Wi-Fi 5. Bluetooth 6. UWB 7. IrDA 8. RFID 9. WiMAX 10. WAP

Question 26

A network standard that specifies no computer controls when data can be transmitted

Answer 26

Ethernet

Question 27

The t___ r__ standard specifies that computers and devices on the network share or pass a special signal (token)

Answer 27

token ring

Question 28

A network standard that defines how messages are routed from one end of a network to another

Answer 28

TCP/IP

Question 29

Identifies any network based on the 802.11 standard that facilitates wireless communication

Answer 29

Wi-Fi

Question 30

Defines how two Bluetooth devices use short-range radio waves to transmit data

Answer 30

Bluetooth

Question 31

Specifies how two UWB devices use short-range radio waves to communicate at high speeds

Answer 31

UWB (ultra-wideband)

Question 32

Transmits data wirelessly via infrared (IR) light waves

Answer 32

IrDA

Question 33

Uses radio signals to communicate with a tag placed in or attached to an object, animal, or person

Answer 33

RFID

Question 34

* Developed by IEEE * Towers can cover a 30-mile radius * Two types are fixed wireless and mobile wireless * Provides wireless broadband Internet access

Answer 34

WiMAX (802.16)

Question 35

* Specifies how some mobile devices can display the content of Internet services * Web * E-mail * Chat rooms * Uses a client/server network

Answer 35

Wireless Application Protocol (WAP)

Question 36

The worldwide telephone system

Answer 36

Public switched telephone network (PSTN)

Question 37

Communications Over the Telephone Network

Answer 37

1. Dial-up lines 2. Dedicated line 3. ISDN 4. DSL 5. FTTP 6. T-carrier line 7. ATM

Question 38

Any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device

Answer 38

Communications device

Question 39

Converts signals between analog and digital

Answer 39

Dial-up modem

Question 40

Sends and receives data and information to and from a digital line

Answer 40

Digital modem (ISDN modem, DSL modem, Cable modem)

Question 41

Uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device

Answer 41

Wireless modem

Question 42

Enables a computer or device to access a network

Answer 42

Network card

Question 43

A central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network

Answer 43

Wireless access point

Question 44

The amount of data that can travel over a communications channel sometimes is called the ____

Answer 44

bandwidth

Question 45

Carries one or more signals

Answer 45

Transmission media

Question 46

Transmit multiple signals simultaneously

Answer 46

Broadband

Question 47

Physical Transmission Media

Answer 47

1. Twisted-pair cable 2. Coaxial cable 3. Fiber-optic cable

Question 48

Wireless Tranmission Media

Answer 48

1. Infrared 2. Broadcast radio 3. Cellular radio 4. Microwaves 5. Communications Satellite