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 108 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?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

For a complete list of videos, visit our video library