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).
Answer:
Its the VLookup and the HLOOKUP.
Explanation:
And it depends upon the manner in which the marks are mentioned. If they are mentioned in row then we use Hlookup, and if in columns then we use vlookup.
And the syntax for vlookup is :
vlookup(lookup value, range containing the lookup value, column number in range containing the return value, approximate 0 or exact value 1)
Answer:
A system is a collection of elements or components that are organized for a common purpose. ... A computer system consists of hardware components that have been carefully chosen so that they work well together and software components or programs that run in the computer.
Explanation:
Well since Windows XP runs on Windows 2000 technology,it would be "slow".Also that Windows XP had MSN,which expired 15 years ago,but the good thing about Windows XP is that it can connect to the internet via WiFi without the computers hardware used for WiFi(PC only).Also that Windows XP has a logo on the start-up screen.Windows Vista on the other hand, doesn't have a logo on the start-up screen,but shows a Windows Vista animated logo atfer the start-up screen.Also that some people named Windows Vista "The first Windows 7".But somewhat,Windows Vista ran faster than Windows XP at starting up.Windows Vista was old,but it sold better than Windows XP.
