Networks and the Internet

Front

Which of the following best describes the basic purpose of the internet?
Options:
The internet protects the privacy of sensitive information.
The internet stores data
The internet sends information from one computer to another.
The internet connects input and output devices to a computer.

Back

The internet sends information from one computer to another.

Front

What is the main purpose of routers?

Back

Routers connect computers and choose the path that information takes from one computer to another.

Front

Two computers are built by different manufacturers. Which of the following best describes whether these two computers can communicate with each other across the Internet?

Back

The computers can communicate directly because Internet communication uses standard protocols that are used by all computers on the Internet.

Front

Which of the following is a benefit of the fault-tolerant nature of Internet routing? Options: The ability to use multiple protocols such as hypertext transfer protocol (HTTP), Internet protocol (IP), and simple mail transfer protocol (SMTP) to transfer data. The ability to resolve errors in domain name system (DNS) lookups. The ability to provide data transmission even when some connections between routers have failed. The ability to use a hierarchical naming system to avoid naming conflicts.

Back

The ability to provide data transmission even when some connections between routers have failed

Front

According to the domain name system (DNS), which of the following is a valid subdomain of the domain example.com?
Options: about.example.com, example.com/about.html, example.com.about, example.org

Back

about.example.com

Front

What is the main purpose of the DNS system?

Back

DNS translates the names of websites into IP addresses.

Front

93.184.216.34

The 184 represents what?

Back

Sub Network

Front

Which of the following is NOT a main method for sending information from one computer to another? Radio, molecules, light, electricity

Back

molecules

Front

Which of the following best explains what happens when a new device is connected to the Internet? A packet number is assigned to the device. A Web site is assigned to the device. A device driver is assigned to the device. An Internet Protocol (IP) address is assigned to the device.

Back

An Internet Protocol (IP) address is assigned to the device.

Front

What information is contained in a packet?

Back

A small part of a digital message, and metadata about the message, including where it came from and where it is going.