Info Tech - Unit 2

How does a graphics card help the computer's main CPU?

(84%) It converts analog images into digital signals the CPU can use.

A coach wants to divide the basketball team into two groups for a practice game. Which statistical measurement is the coach most likely to use?

(84%) Median

What is the difference between mode and mean?

(84%) Mode is the value that occurs most often in a data set and mean is the data set's average.

Which hardware device is it most important for an experienced computer professional to install?

(84%) RAM

Which is the best choice for a business that wants to allow employees in a single office to share one scanner?

(84%) a local area network (LAN)

Which capability does a sound card need to provide the best sound?

(84%) a variable analog wave

Wireless technology allows professionals to do which of the following?

(84%) connect to work at any time from any location

Which of the following is an example of software piracy?

(84%) copying software from work to use at home

A laptop is running hotter than normal, and its cooling fan sounds slower than usual. Which is the most likely problem?

(84%) dust or pet hair

What is the best way for IT professionals to keep employees' wireless devices secure?

(84%) encourage use of WPA by updating to compatible equipment

Which type of peripheral is a keyboard?

(84%) external

Moore's Law explains that approximately every two years, placing more transistors in an integrated circuit becomes

(84%) less expensive.

{9, 12, 12, 15, 18, 20, 25}

(84%) median = 15

A band wants to know what their most popular CD is so that they can have more copies made to sell. Which statistical measurement is the band most likely to use?

(84%) mode

{6, 7, 12, 5, 7, 11, 10, 7, 6}

(84%) mode = 7

Alex has accepted an IT position at a new company, and will be leaving her current job in the IT department of a large company.

(84%) notify her current job of the accounts she no longer needs access to

A family is ready to buy a new computer to replace their 8-year-old machine. The old computer was a Macintosh, and they would like another. They don't play many games or movies on the machine, but need access to the Internet.

(84%) operating system

What is an LMS and how is it used?

(84%) software used in education to deliver online courses

What information does the Media Access Control (MAC) on a network card provide?

(84%) the speed at which data can be sent to another node in the network

IT professionals have strict legal and ethical standards because of

(84%) the strategic role they play in an organization.

When considering the best technology for its particular use, what should a business consider?

(84%) the various factors that will affect the business

In which situation is it acceptable for an IT professional to access corporate secrets?

(84%) under the guidance of a legal investigation

Wi-fi works by converting data signals into which of the following?

(84%) wireless signals

In what ways can technology help you be more productive?

- Enables you to create electronic documents that present your ideas clearly and effectively - Enables you to communicate with people anywhere in the world - Enables you to store documents on a thumb drive

Which of the following describe advantages of miniaturization?

- Smaller computers can be cheaper. - Smaller computers can be faster. - Smaller computers can be more portable. - Smaller computers can use power more efficiently.

Which of the following explains the growing need for a standard IT professional licensing program?

- There are few certification programs that are robust enough to be Microsoft ANSI-accredited. - An IT professional can be termed a certified professional by attending some program certifications.

Which of the following statements is true of wireless cellular networks? Check all of the boxes that apply.

- They operate on a grid pattern. - They search for signals to confirm that service is available. - They provide voice communications and Internet connectivity.

What are the duties of IT professionals before and during the deployment of computers stage?

- set up basic productivity programs, such as e-mail and word-processing software - back up files - install any special software needed, such as photo-editing or tax preparation programs

Based on your understanding of Moore's Law, what do you predict will be the next trend in the evolution of computers?

(84%) Computers will continue to become smaller in size and become faster.

Which IEEE standards define Wi-Fi technology?

802.11 standards

For which of the following careers is technology's speed factor most important?

Air traffic controller

___________ enables information to be viewed in an easily understandable format.

An output device

The need to upgrade which component would likely lead to replacing the computer?

CPU

Which of the following is an information storage method that allows you to save files on Internet servers instead of on your computer devices?

Cloud storage

Check the devices that are internal peripheral devices

DVD drive e-Card reader

Which of the following ports offers a fast connection that could be used to download and watch your favorite TV shows?

FireWire

Which port carries high-definition video and audio in one connection?

HDMI port

Which of the following is true of laws governing the actions of IT professionals?

HIPAA is an example of a law that protects personal information, which all people, including IT professionals, are required to follow.

What is usually the easiest upgrade you can make to a desktop computer?

Increase the memory.

Which industry does this statement most accurately describe? Technology makes record-keeping, managing patient files, and submitting insurance claims more efficient.

Medicine

Check the devices that are external peripheral devices:

Mouse Keyboard

A college student needs a laptop that can be used while commuting on the train and sitting in lecture.

Size

Which of the following are peripheral devices?

Speakers Graphics card

A parent needs a computer that can hold family photos.

Storage

For which of the following careers is technology's connectivity factor most important?

Traveling salesperson

Which of the following ports is the most common on computers?

USB

What is the basic port used to connect a computer to a screen?

VGA port

The most secure form of encryption is referred to as

WPA.

Which of the following are peripheral devices that could be connected to the computer you are using?

Web camera Mouse Keyboard Graphics card

Which of the following storage devices are portable?

external hard drive flash drive

Which key hardware component was typically not included in first-generation personal computers?

internal hard drive

Which of the following behaviors does not harm a company if your employment is terminated?

notifying your employer of all accounts you have access to, and requesting that they change all passwords before you leave

Hardware refers to the _________________ of a computer.

physical components

Which of the following are stages in the computer life cycle?

planning for and purchasing equipment retiring computers deploying computers supporting and upgrading

Storage is different from RAM because for storage, information is _________, even if power is turned off.

preserved

Software refers to the ______________that direct hardware to perform a task.

programming instructions

The memory used by the CPU to temporarily hold data while processing is called _______.

random access memory

What type of math synthesizes and interprets large sets of numerical data used to describe characteristics of a population? Why is statistics important?

statistics It helps evaluate the similarities and differences of large groups.

A computer is an electronic device that performs four basic operations called________.

the information processing cycle

The CPU is located on what part of the computer?

the motherboard

Why are peripherals added to computers?

to expand their capabilities