Chapter 3

Question 1

Saving information for possible reuse is called

Answer 1

Caching

Question 2

If the Internet consisted of four computers, there would be six possible connections. If it consisted of five computers, there would be ten possible connections. How many connections are possible with ten computers?

Answer 2

45

Question 3

What is the potential number of IPv4 addresses available?

Answer 3

4,294,967,296

Question 4

Root name servers

Answer 4

maintain the relationship between IP addresses and symbolic computer names

Question 5

This type of communication results in the sending and receiving of information at different times.

Answer 5

Asynchronous

Question 6

The Internet is fast enough to mimic_____ communication.

Answer 6

Synchronous

Question 7

The Internet and the World Wide Web are different names for the same thing.

Answer 7

False

Question 8

What can folders contain?

Answer 8

Both files and folders

Question 9

All IP addresses of authoritative name servers for TLDs are maintained and managed by 13 ____ servers.

Answer 9

Root name

Question 10

A communication that goes out to many people within a specific target audience is called a(n)

Answer 10

Multicast

Question 11

A hierarchy of related computers on a network is called a(n)

Answer 11

Domain

Question 12

Computers on an Ethernet network “tap” into a cable called the

Answer 12

Channel

Question 13

____ is the main technology for local area networks.

Answer 13

Etherant

Question 14

Local networks that support communications wholly within an organization are called

Answer 14

Intranets

Question 15

Special computers that send files to web browsers elsewhere on the Internet are known as

Answer 15

Web Servers

Question 16

In a web address, the http:// is the

Answer 16

Protocall

Question 17

Files are often sent over the Internet via a process known by the acronym

Answer 17

FTP

Question 18

The source file for a web page contains the ____ of the page, not the actual image of the pag

Answer 18

Description

Question 19

In the client/server structure, the customer’s computer is the ____ and the business’s computer is the_____.

Answer 19

Client and server

Question 20

When we get files from a server we are ____ them. When we put files on a server we are _____ them.

Answer 20

Downloading and Uploading

Question 21

Instead of typing in the IP address, we use symbolic names, which are also called

Answer 21

Domain names

Question 22

In URLs,____ are not case sensitive, but ____ may be case sensitive.

Answer 22

Domain names and path names

Question 23

When moving inside of a directory hierarchy, moving up is the same as moving _____, and moving down is the same as moving ______.

Answer 23

Higher and Lower

Question 24

Label the following with an S to indicate synchronous communication or an A to indicate asynchronous communication.

Answer 24

Movie: A
Chat Session: A
Email: A
Video conferencing: S
Web page: A
Book: A
Concert: S
Text messaging: A
Blog: A

Question 25

How does the time of day affect the traffic? How does the time of day affect overseas Internet traffic?

Answer 25

The time of day affects the traffic depending on what time people leave their houses. Mostly at night people aren’t on the road because of work. People usually leave their houses in the morning and come home in the evening. Other times there are a few people on the road at night due to special jobs such as people who do overnight shifts. The time of day affects overseas Internet traffic because of the time zone. Some countries have a 12-hour difference. When we are ready to go to bed for work the next day, overseas people are ready to leave for work in the morning.

Question 26

Identify each part of the following URL: http://airandspace.si.edu/exhibitions/gal100/pioneer.html

Answer 26

Protocol: HTTP: Domain: pioneer Top-level Domain: .html Pathname: /exhibition/gal100 Web page: airandspace.si.edu

Question 27

TCP/IP

Answer 27

Transmission Control Protocol/Internet Protocol The TCP/IP is the set of communication protocols. It is only used on the internet and other computer networks that are similar to it. The objective of the TCP/IP is to transmit data to source applications that will provide information inside the data packets.

Question 28

LAN

Answer 28

Local Area Network LAN is a network connecting computers, which can only be reached within a small physical space, like a building. Its purpose is for people to be able to connect to the same internal servers or websites.

Question 29

WAN

Answer 29

Wide Area Network WAN is when a network is able to reach other computers over a wider area than a couple of kilometers. Its purpose is to engage in conversation, communication, sharing data, and a few other things while using the WAN provider.

Question 30

DSL

Answer 30

Digital Subscriber Line High-Speed internet connecting through voice lines is provided by using DSL. Its purpose is to use existing telephone lines to move high-bandwidth data, to service subscribers

Question 31

WWW

Answer 31

World Wide Web WWW is commonly used before websites. For example, www.bestbuy.com or www.amazon.com. It refers to public websites or public pages. Its purpose for WWW is to be free for everyone to use

Question 32

URL

Answer 32

Universal Resource Locator URL is a two-part name for a website page. URLs are broken down into protocols, domains, top-level domains, pathnames, and web pages. Its purpose is to locate a resource on the internet or when someone sends you a link in an email or text message, it sends it as a URL.

Question 33

HTML

Answer 33

HyperText Markup Language HTML marks up the content of a site and it is a code. HTML is set up with the opening tag and element. The sentence is called the content and the element continues. Eventually, the programmer closes the content with closing tags.

Question 34

ISP

Answer 34

Internet Service Provider The ISP provides services for accessing, using, and or joining the internet. The ISP can be set up in many different ways such as community-owned, non-profit-owned, and commercially owned. Its purpose is to provide people with the ability to access the internet.