Author Question: ________ is used to undo unwanted database changes. A) Rollback B) Rollforward C) Restart ... (Read 21 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
________ is used to undo unwanted database changes.
 
  A) Rollback
  B) Rollforward
  C) Restart
  D) Encryption

Question 2

What are Web services?
 
  What will be an ideal response?


batool

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

A

Answer to Question 2

Web services are XML-based protocols that enable communication between software over the Web. They usually run in the background so that transparent communication can be established between computers.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

For a complete list of videos, visit our video library