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