CS

When Jack takes a class, he saves all his work for that class with the name of the course. What is most likely happening to his saved files?

Because he is using the same name, each time he saves he is overwriting his previous work.

Which of the following is true about broadband connections?

Broadband connections are "always-on" connections.

What is the main purpose of an operating system?

to coordinate the resources and activities on a computer

Lossy compression discards some original content to create smaller files.

true

What is the primary difference between HTML 5 and Adobe Flash types of web animations?

Adobe Flash requires you to use a plug-in but HTML 5 does not.

What do engineers use to create highly detailed and technically accurate drawings?

CAD software

Samir has saved a file named Project.docx in various locations on his hard drive and needs to work with the most recent version. What file property should he examine to find the most recent version of Project.docx?

Date modified

Which of the following is the strongest password?

H@veAGr3atDaY!

In terms of privacy, which of the following is a best practice?

Keeping your Social Security number hidden in a locked box in your home

If several programs or apps are running simultaneously, your computer or device might use up its available _____.

RAM

For _____, the original media file is stored on the media distributor's server, so you can watch the content more than once.

on-demand content

A network administrator is usually not required on a _____ network.

peer-to-peer

Devices on a _____ area network are connected via Bluetooth.

personal

An operating system is also called a(n) _____.

platform

When considering a computer to purchase, which of the following factors involves the operating system of the computer?

platform

Computers communicating on a network must follow a _____, a common set of rules for exchanging information.

protocol

A device driver is a program that controls a device attached to the computer.

true

When Alice turned on her laptop this morning, the screen displayed only colorful horizontal lines. Which of the following is most likely to have a problem?

video card

What search operator would you use with the word "Android" to find Android phone, Android smartphone, and Android cell phone?

* (asterisk)

Which of the following top-level domains is generally used by Internet service providers?

.net

Which of the following video resolutions produces the sharpest images and the largest files?

4k

What is an ISP?

A telecommunications company that sells Internet access.

Computer-aided design software helps architects, engineers, and scientists to design, analyze, and manufacture products with the precision of human-level intelligence. Which of the following technologies does CAD incorporate to achieve this?

Artificial intelligence and machine learning

What does a DSL modem use to send and receive digital data?

Copper telephone wiring

As chief financial officer, you want to send the fourth quarter profit/loss spreadsheets to the president of the company. How can you send the report without worrying about someone else accessing it?

Encrypt the data in the report.

Which of the statements about B2B e-commerce is correct?

Examples of B2B services are advertising, technical support, and training.

Which of the following statements do opponents of net neutrality agree with?

ISPs should charge more for high-bandwidth connections.

A bitmap image is provided in two different resolutions. Image 1 has a resolution of 1500 x 1225. Image 2 has a resolution of 500 x 350. Which of the following statements is true when the sizes of both the files are increased by 25 percent?

Image 1 is sharper and has a larger file size than image 2.

What is the recommended solution if a computer performs slowly?

Install additional RAM.

How does encryption work?

It scrambles the information until the key is used to unscramble it.

How does discarding computers in a landfill affect the environment?

Lead and mercury in computer parts are seeping into the ground and water supply.

Which of the following operating systems would allow a user to add functionality and sell or give away their versions?

Linux

Which of the following is NOT an image format to store photos?

MP3

Which of the following statements is true about public networks?

Many public networks are not secure.

What internal device does a computer use to connect to a wired or a wireless network?

Network interface card

How can you display the main folders on a Windows computer?

Open File Manager

How is streaming a video different from downloading it?

Unlike streamed content, downloaded content is stored on the computer.

Simone frequently downloads mobile apps from the Amazon App Store. What operating system does she have on her smartphone?

android

Which network protocol allows devices to communicate with each other over a short range, usually less than 30 feet/9 meters?

bluetooth

Which of the following factors can affect processor performance of a CPU?

clock space

Which of the following could indicate a DoS attack on your company server?

customers cannot view the website on their device because the page will not load.

Which of the following devices is the easiest to upgrade, such as by adding RAM?

desktop computers

Which of the following does a secure website use to safeguard transmitted information?

encryption

Bandwidth is a term that describes the number of devices connected to a network.

false

To protect a computer or a server, a(n) ______ can be installed that would act as a barrier and inspect data being transmitted to or from the network.

firewall

If you have a file that has billions of bytes of data, then it would be measured in _____.

gigabytes

Sophia is putting together a training manual for her new batch of employees. Which of the following features can she use to add a document title at the top of each page?

header and footer

Which of the following is not an input device?

headphone

Where on a computer is the operating system generally stored?

internal hard drive

Jamie plans to sell his pottery designs through his website. If he also wants to launch a mobile app to reach more people, which type of app should he launch?

m-commerce app

Digital information processed into a useful form is called _____.

output

Which type of memory is permanently installed on your computer and attached to the motherboard?

read-only memory (ROM)

Which of the following properties affects the quality of digital images?

resolution

What hardware is essential to creating a home Wi-Fi network?

router

A process called _____ converts analog sound waves into digital sound.

sampling

What two factors determine the quality of digital audio?

sampling rate and bit rate

Which of the following types of websites typically provides the least security?

social media sites

What type of hard drive has no moving parts, making it fast and durable?

solid state drive

What technology can be used by people with a hearing disability to listen to a narration?

speech recognition

The bootstrap program executes which of the following?

tests that check components such as RAM and storage

When a CPU executes instructions as it converts input into output, it does so with _____.

the control unit and the arithmetic logic unit

What does a file format refer to?

the organization and layout of data in the file

The Unicode coding scheme supports a variety of characters including those for Chinese, Japanese, and Arabic languages.

true

Wireless networks that are available in public places, such as hotels, restaurants, and coffee shops, are known as Wi-Fi hotspots

true

Which of the following is assigned to each webpage to identify its location on the Internet?

uniform resource locator (URLs)

Which option lists the computer components in order from oldest to newest?

vacuum tubes, transistors, integrated circuits, microprocessors, personal computers

The hardware a digital device needs to play videos includes a screen, speakers, and a _____.

video card

When it comes to secure data storage on a network, which of the following statements is true?

Roles can be granted to individuals to view files and make changes to files on a network.

What devices do not need device drivers to be manually installed, and start to function as soon as they are connected to a computer?

plug-and-play devices

Why do companies use online collaborative productivity software?

to allow employees to share, edit, and comment on documents

Emma downloaded a new game from an unfamiliar website. A few days later, Emma realized her system had been hacked and her credit card numbers were stolen. Without Emma knowing, what type of malware might she have downloaded to her computer?

trojan

An organization has its employees working from home. Which type of software most likely includes collaboration features to help the employees work together online?

web apps