Information Management CH5

Question 1

What were the first four locations hooked up to the Internet (ARPANET)?

Answer 1

UCLA, Stanford, MIT, and the University of Utah

Question 2

What does the term packet mean?

Answer 2

The fundamental unit of data transmitted over the Internet. Each packet has the sender’s address, the destination address, a sequence number, and a piece of the overall message to be sent.

Question 3

Which came first, the Internet or the World Wide Web?

Answer 3

the Internet

Question 4

What was revolutionary about Web 2.0?

Answer 4

Anyone could post content to the web, without the need for understanding HTML or web-server technology.

Question 5

What was the so-called killer app for the Internet?

Answer 5

electronic mail (e-mail)

Question 6

What makes a connection a broadband connection?

Answer 6

A broadband connection is defined as one that has speeds of at least 256,000 bps.

Question 7

What does the term VoIP mean?

Answer 7

Voice over Internet protocol – a way to have voice conversations over the Internet.

Question 8

What is an LAN?

Answer 8

A LAN is a local network, usually operating in the same building or on the same campus

Question 9

What is the difference between an intranet and an extranet?

Answer 9

An intranet consists of the set of web pages and resources available on a company’s internal network. These items are not available to those outside of the company. An extranet is a part of the company’s network that is made available securely to those outside of the company. Extranets can be used to allow customers to log in and check the status of their orders, or for suppliers to check their customers’ inventory levels.

Question 10

What is Metcalfe’s Law?

Answer 10

Metcalfe’s Law states that the value of a telecommunications network is proportional to the square of the number of connected users of the system.

Question 11

What are circuit switching and packet switching?

Answer 11

Circuit switching requires a dedicated communication path for duration of transmission bandwidth, but minimizes delays.

Packet switching is a specialized message switching with very little delay

Question 12

What are the two ways to communicate within the internet?

Answer 12

1. IP network (communicates between computers through datalinks)
2. TCP transport (communicates between applications)