Question 1

Sharing printers or files on a LAN or the Internet requires open ports so the data can be transferred to and from your computer.

Accepted Answer

Sharing printers or files on a network requires open ports to allow data transfer to and from your computer. Without open ports, the data cannot be transferred and the sharing cannot occur.

Question 2

Downstream speed refers to the rate at which you send data from your computer to the Internet.

Accepted Answer

Downstream speed refers to the rate at which data is received from the Internet to your computer, not sent from your computer to the Internet. The rate at which data is sent from your computer to the Internet is referred to as upstream speed.

Question 3

Today's VoIP systems allow you to use a standard telephone handset to make or receive calls.

Accepted Answer

Today's VoIP systems have advanced to the point where you can use a standard telephone handset to make or receive calls, just as you would with a traditional phone line.

Question 4

Firewall software is designed to help keep your computer secure.

Accepted Answer

Firewall software monitors and controls incoming and outgoing network traffic based on set security rules, thereby blocking potentially harmful threats from accessing your computer or network.

Question 5

One-on-one messaging is referred to as instant messaging .

Accepted Answer

One-on-one messaging is commonly referred to as instant messaging, which allows users to send and receive messages in real-time.

Question 6

A(n) cable modem is a device that changes a computer's signals into a form that can travel over cable TV links.

Accepted Answer

A cable modem is specifically designed to modulate and demodulate the signals that travel over cable television infrastructure so that a computer can communicate with the internet via cable wiring.

Question 7

A standalone computer with an always-on DSL, ISDN, or cable modem connection is particularly susceptible to intrusions.

Accepted Answer

Standalone computers with always-on internet connections are more vulnerable to intrusions because they do not have the added protection of a network firewall.

Question 8

FTP allows authorized remote users to change file names and delete files.

Accepted Answer

FTP (File Transfer Protocol) allows authorized remote users to not only download and upload files but also rename files and delete files from the server.

Question 9

A VPN is typically a nonprofit solution.

Accepted Answer

VPN services are typically provided by for-profit companies, although some nonprofit organizations may use a VPN for their operations.

Question 10

Fixed wireless technologies have more latency than satellite Internet service.

Accepted Answer

Fixed wireless technologies have lower latency compared to satellite internet service. This is because fixed wireless uses land-based infrastructure, while satellite internet involves data being sent to space and back, resulting in longer delays.

Question 11

The figure above illustrates a(n) ISDN .

Accepted Answer

The answer of  The figure above illustrates a(n) ISDN...

Question 12

Since a VoIP number is not associated with a physical address, 911 systems cannot automatically direct emergency responders to your location in the event of an emergency.

Accepted Answer

This is true. VoIP numbers are not tied to a specific physical address, so it is important to register your VoIP number with a 911 service and keep your location up-to-date to ensure emergency responders can find you in case of an emergency.

Question 13

CATV coaxial and fiber optic cables have plenty of bandwidth to carry television signals for hundreds of channels in addition to digital data.

Accepted Answer

CATV coaxial and fiber optic cables have a high bandwidth capacity, allowing for the transmission of multiple television channels and digital data simultaneously.

Question 14

FTP, SMTP, and UDP are routers used on the Internet.

Accepted Answer

FTP (File Transfer Protocol) and SMTP (Simple Mail Transfer Protocol) are not routers, they are protocols used for transferring files and sending email respectively. UDP (User Datagram Protocol) is a transport protocol used for sending data packets over a network, but it is not a router. Routers are devices that connect different networks together and forward data packets between them.

Question 15

P2P FTP can be accessed by logging in without a password, by using a specified user ID.

Accepted Answer

P2P (Peer-to-Peer) and FTP (File Transfer Protocol) are different technologies. FTP requires a username and password for access, while P2P networks connect users directly for file sharing without centralized authentication, but this does not imply FTP can be accessed without a password using a user ID.

Question 16

First-generation cellular data technology is digital and offers few features beyond voice communications.

Accepted Answer

First-generation cellular technology (1G) is analog, not digital, and was primarily designed for voice communication with very limited data capabilities.

Question 17

A public IP address is one that can be accessed by packets on the Internet.

Accepted Answer

The answer of A public IP address is one that...

Question 18

In general, a person initiates a VPN connection by connecting to an ISP as usual, but after the connection is established, a second connection to the remote access server creates an encrypted channel for data transmission.

Accepted Answer

This is a correct description of how a VPN connection is initiated.

Question 19

Communication between all the different devices on the Internet is made possible by the HTTP protocol suite.

Accepted Answer

While the HTTP protocol is important for communication between devices on the internet, it is not the only protocol suite responsible for it. Other protocols, such as TCP/IP, also play a crucial role in enabling communication between devices.

Question 20

In communications technology, unmodulation means changing a signal back to its original state.

Accepted Answer

Unmodulation refers to the process of extracting the original signal from a modulated carrier signal. Therefore, unmodulation does not mean changing a signal back to its original state, but rather separating the signal from the carrier wave.

Quiz 6: The Internet