Your company wants to secure the new data center physically. The company has hired a security guard but wants to find a way so that only one person at a time can enter in the data center. As people enter, they will have to show the security guard identification that authorizes them to enter the data center. What is your company’s new security called?
A. Theft prevention.
B. Mantrap.
C. Entry control roster.
D. Security outpost.

The correct answer to the following question will be Option C (Entry control roster).

Explanation:

A roster for entry controls includes a list of identities and descriptions of people that are going to access. A guard might have a list of recognized staff approved to connect a network channel capability or region.

Someone who tries to enter the region will indeed be reviewed, and then they will be refused access unless their identity isn't even on the list.Once people visit, they'll need to display the credentials of the security officer that allows everyone to access the server farm.

So, it's the right answer.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.