Chapter 21 Quiz (ITN107) - The Internet

What allows you to give anyone control of your desktop through an e-mail invitation?

Remote Assistance

What type of signal does a computer use to communicate?

Digital

Z-Wave and Zigbe use a ________ networking topology to facilitate communication in homes, yet both also have hubs that act as the network interconnect.

Mesh

All Web browsers use the ________.

Hypertext Transfer Protocol (HTTP)

Which tool transfers data via analog signals?

Telephone wire

Which servers provide Web sites you access by using the HTTP protocol on port 80?

Web

________ connections to ISPs use a standard telephone line with special equipment on each end to create always-on Internet connections at speeds much greater than dial-up.

DSL (Digital Subscriber Line)

What term refers to the amount of time a packet takes to get to its destination?

Latency

What port number is used by HTTPS?

443

With most ISPs, a(n) ________ server will provide your computer with the proper TCP/IP information.

DHCP

What allows you to make voice calls over a computer network?

VoIP (Voice over IP)

Which protocol enables operating systems and applications to access directories?

LDAP (Lightweight Directory Access Protocol)

Every Tier 1 and Tier 2 provider leases connections to the Internet to companies called ________.

Internet service providers (ISPs)

What tool provides the basic software structure for communication on the Internet?

TCP/IP (Transmission Control Protocol/Internet Protocol)

Tier 1 providers own long-distance, high-speed fiber-optic networks called ________.

Backbones

Which software enables multiple connections to the Internet to go through one protected computer?

Proxy server

What port number is used by POP3?

110

Your router can use a feature called ________ to prioritize access to network resources. This feature enables you to ensure certain users, applications, or services are prioritized.

Quality of Service (QoS)

Which protocol is nothing more than FTP running through an SSH tunnel?

SFTP (Secure File Transfer Protocol)

What is the most common VoIP application protocol?

SIP (Session Initiation Protocol)

What protocol uses port numbers 67 and 68?

DHCP

What port number is used by SMTP?

25