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givi [52]
3 years ago
8

. What physical characteristic does a retinal scan biometric device measure?

Computers and Technology
1 answer:
elena-s [515]3 years ago
4 0

Answer: D)The pattern of blood vessels at the back of the eye.

Explanation: The retinal scan is the techniques which is used in the bio-metric mechanism.The scanning of the retina's blood vessel pattern is capture by the scanner is the unique technique which is used for bio-metric purpose.

Blood vessel pattern is capture because it is present in unique form for every person and will help in distinguishing a person from another person while scanning.

Other options are incorrect because light reflection or reaching near retina and light pattern are not the unique way for identification while scanning a person.Thus the correct option is option(D).

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The term _____ best describes the level of technology skills needed in today’s business world.A: computer knowledgeB: computer f
Alja [10]

Answer:

The answer is "Option B"

Explanation:

The ability to learn and use basic computer hardware and software understanding to solve problems and to access information is known as computer fluency. and other options are not correct, that can be defined as follows:

  • In option A, computer knowledge is a basic general awareness, that helps the user to use the computer more fluently, that's why it is not correct.
  • In option C, It is an internal feature of the computer, that helps to transfer data, that's why it is not correct.
  • In option D, computer information is also known as data that is stored in the computer, that's why it is not correct.
6 0
2 years ago
Why do you think that so many of these sources have similar names?
Anon25 [30]

Answer:

What sources? WILL ANSWER in comments

4 0
2 years ago
The scope of a variable declared outside of any function is:
Marta_Voda [28]

Answer:

a) Global

Explanation:

The scope of a variable declared outside of any function is Global.

Let us consider an example:

int g;

int  add(int a,int b){

   return a+b;

}

int  subtract(int a,int b){

   return a-b;

}

Here the variable g is defined outside any function and is accessible anywhere within the program. This is a global variable.

Variables defined within each function - a,b on the other hand have a local scope are are visible only within their respective function bodies.

5 0
3 years ago
Which keyboard shortcut opens the find and replace dialog box to the replace tab?
Vsevolod [243]

Answer:

CTRL + F

Explanation:

usually CTRL + F but it would depend on the program  

3 0
2 years ago
What type of microscope requires a nonmetal sample to be prepared for viewing by coating it with a thin layer of a conductive ma
zheka24 [161]

The answer is a Scanning Electron Microscope

It is important to obtain and prepare proper samples when using SEM. The sample’s size, state, and shape are things that should be considered before the sample preparation. Some samples need to be coated. Most metals require no preparation since they can easily conduct electricity. Non-metals, however, needs to be coated with a thin layer of gold. Gold is the ideal non-metal and works most of the times.

5 0
3 years ago
Read 2 more answers
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