Chapter 1

Question 1

What is Instant Messaging (IM)?

Answer 1

Real-Time communication between two or more people.

Question 2

What are collaboration tools?

Answer 2

Tools that allow multiple people to work on a single document at the same time.

Question 3

What are Weblogs (Blogs)?

Answer 3

A website where you can express your thoughts online, or join in a community of fellow thinkers.

Question 4

What are Wikis?

Answer 4

A group of pages that people can contribute to togther. A public encylolpedia.

Question 5

What is podcasting?

Answer 5

An audio based that is similar to radio-on-demand. Podcasting now often includes video.

Question 6

What is the difference between a Client and a Server?

Answer 6

A Client is a computer or device that request information obtained from a server. A Server is a computer or device that provides information to clients.

Question 7

What are the three categories of network components?

Answer 7

1. Devices
2. Media
3. Services

Question 8

There are two types of area networks, what are they?

Answer 8

1. Wide Area Network (WAN)
2. Local Area Network (LAN)

Question 9

There are three specific characteristics to a Local Area Network, what are they?

Answer 9

1. LANs interconnect end devices in a limited area like a home or office
2. A LAN is usually administered by a single organization or individual.
3. LANs provide high speed bandwidth to end devices.

Question 10

There are three specific characteristics to a Wide Area Network, what are they?

Answer 10

1. WANs interconnect LANs over wide geographical areas such as between cities, states, provinces, countries, or continents.
2. WANs are usually administered by multiple service providers.
3. WANs typically provide slower speed links between LANs.

Question 11

There are two terms used to describe the internet, what are they?

Answer 11

1. Intranet
2. Extranet

Question 12

Label each of the three layers described of the internet.

Answer 12

1. Red: Internet
2. Blue: Extranet
3. Green: Intranet

Question 13

What is Fault Tolerance?

Answer 13

Providing multiple redundant paths for connections so that if one goes down, the connection is not lost.

Question 14

What is Scalability?

Answer 14

The ability to allow rapid growth of networks.

Question 15

What is Quality of Service?

Answer 15

The ability to priortize packets over others, for example VoIP Phone calls would be higher priority than Internet Browsing.

Question 16

What is BYOD?

Answer 16

Bring Your Own Device (BYOD)

Question 17

What is Cloud Computing?

Answer 17

Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network.

Question 18

What are five options for connecting to the Internet?

Answer 18

1. DSL
2. Cable
3. Cellular
4. Satellite
5. Dial-Up

Question 19

How does DSL work?

Answer 19

DSL sends signals over the telephone line and requires a special model to filter out the data.

Question 20

In the context of Internet Connections, how does Cable Internet work?

Answer 20

Data is sent over coaxial cable that is also send to Televisions, a special modem is required to filter data.

Question 21

How does a Dial-Up internet connection work?

Answer 21

Your computer calls your ISP to start sending and recieving traffic just as a phone call.

Question 22

What is the primary difference between a Circuit-Switched connection and a Packet-Switched connection?

Answer 22

A Circuit-Switched connection establishes a direct donnection from the source to the destination and remains active even if nobody is sending data. A Packet-Switched connection sends packets over multiple routes to even traffic spread.