Answer: Domain local group
Explanation:
Domain Local Group is a form of group in a Windows Server network in Microsoft which is used by an administrator to assign permissions to the resources that are in same domain.
Their scope is strictly restricted to their particular domain. It should also be noted that they've open membership which simply implies that members form other domain can be added to them. One has to first know the users that have identical job responsibilities in order to use the domain local group, then identify the network resources that are similar which users want to access.
Network & internet connection
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).
I think you need some time of camra voice recorder sorry if im wrong also sorry cuz i forgot what it is called