« previous next »

Author Question: An important property of B-Trees is that they are balanced to maintain efficient and predictable ... (Read 31 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
on: Jul 7, 2018
An important property of B-Trees is that they are balanced to maintain efficient and predictable performance. Balanced here means that ________.
 
  A) every pointers allows access to the same number of data records
  B) the numbers at every level of the B-Tree have the same average value
  C) the key field values are the same at every level
  D) every data record is the same distance from the top entry of the B-Tree

Question 2

The advantages of normalization include ________.
 
  A) the elimination of modification anomalies
  B) the elimination of duplicated data
  C) more complex SQL for multitable subqueries and joins
  D) simpler SQL queries


leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 7, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Traction is the application of a pulling force to maintain bone alignment during fracture healing. D Traction is the application of a pulling force to maintain bone alignment during fracture healing. D
Two important changes occur in the upper airway in croup:The epiglottis swells, thereby occluding th Two important changes occur in the upper airway in croup:The epiglottis swells, thereby occluding th
The Reticular Activating System and Related Regions in the Brain Are Important Areas of Focus for D The Reticular Activating System and Related Regions in the Brain Are Important Areas of Focus for D
Important Motor Regions of the Human Brain Important Motor Regions of the Human Brain
A healthy diet is made up of well-balanced nutrients. A healthy diet is made up of well-balanced nutrients.
Blueberry bees (Osmia ribifloris) are efficient pollinators of a variety of plants, including this b Blueberry bees (Osmia ribifloris) are efficient pollinators of a variety of plants, including this b
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library