This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is true of entities? A) Entities have an identifier whose value is ... (Read 109 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
Which of the following is true of entities?
 
  A) Entities have an identifier whose value is associated with every entity in the data model.
  B) Entities can only represent a logical construct or transaction, not a physical object.
  C) The characteristics of entities are described by attributes.
  D) The names of entities are always plural.

Question 2

Which of the following is true of a virtual private network (VPN)?
 
  A) It provides a secure connection for information transmitted over the public Internet.
  B) It does not encrypt messages.
  C) It is limited to organizational use.
  D) It can be used to store highly sensitive information of an organization.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kardosa007

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

C

Answer to Question 2

A




kardosa007

  • Sr. Member
  • ****
  • Posts: 300

 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

For a complete list of videos, visit our video library