Snhu dad 220 Study guides, Class notes & Summaries

DAD 220 QUIZ 4 WITH ANSWERS SNHU

DAD 220 - 3-1 quiz

SNHU DAD 220 Questions And Answers 2024

DAD 220 QUIZ 4 WITH ANSWERS SNHU.

DAD 220 - 4-1 Quiz 2024 With Correct Answers

Your cousin, a senior in high school, asks you to play a Jeopardy-style game with her to help prepare for her computer science exam next week. She gives you these two clues about a type of relational database key: No column values may be NULL, and columns may be combined to create a unique primary key. Which type of key is she referring to? Select one. - Correct Answer Composite primary key During a water cooler chat, your colleague claims that both data types and names of foreign and primar...

Relational data is based on which three mathematical concepts? Select all that apply. Question options: A variable A domain A tuple A relation A table An equation - right answer--A domain A tuple A relation Which of these answers are relational operations? Select all that apply. Question options: A join A boxed structure Projection Outer attachments Big data Selection - right answer--A join Projection Selection In relational databases, each individual space within a r...

Population - right answer--Group sharing common characteristics Sample - right answer--Sub-group of population Random Sample - right answer--Each member of population has an equal chance for selection into sample *Without replacement: Chosen individual taken form pool; selection odds change *With replacement: Chosen individual returned to pool; selection odds constant Independent Variable - right answer--Casual factor; precedes dependent variable Dependent Variable - right a...

DAD 220 Module One 2024 Questions And Correct Answers

DAD 220 - Quiz 3-1 Questions And Answers 2024