This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following best describes an attribute or combination of attributes that could be used ... (Read 40 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 7, 2018
Which of the following best describes an attribute or combination of attributes that could be used as the primary key for an entity?
 
  A) Candidate key
  B) Natural key
  C) Surrogate key
  D) Composite key

Question 2

Which of the following is not an error when drawing a data flow diagram?
 
  A) all data flowing into a process or out of a process
  B) data flow on a child diagram that has only one end connected to a process, the other end is a point in space
  C) connecting data stores and external entities directly to each other
  D) placing more than nine processes on a data flow diagram


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Madisongo23

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 7, 2018
Answer to Question 1

A

Answer to Question 2

B


kamilo84

  • Member
  • Posts: 495
Reply 2 on: Jul 7, 2018
Excellent

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

When the IQ scores of identical twins differ, behavior genetics researchers attribute these to ... When the IQ scores of identical twins differ, behavior genetics researchers attribute these to ...
Use of combination therapy during tuberculosis therapy to avoid resistance. Use of combination therapy during tuberculosis therapy to avoid resistance.
A combination wrench has an open end at one end and a box end at the other end. A combination wrench has an open end at one end and a box end at the other end.
A combination wrench has an open end at one end and a box end at the other end. A combination wrench has an open end at one end and a box end at the other end.
Which outcome corresponds to the combination of copper(II) and sulfide ions shown in the ... Which outcome corresponds to the combination of copper(II) and sulfide ions shown in the ...
Combination of arrangement and sequence is correct Combination of arrangement and sequence is correct
Video: Rods and Cones Animation

For a complete list of videos, visit our video library