Snhu dad 220 - Study guides, Class notes & Summaries

DAD 220 - 1-3 Quiz SNHU Intro to Structure Database Environment Module one quiz...

DAD 220 - 3-1 quiz

SNHU DAD 220 Questions And Answers 2024

DAD 220 QUIZ 4 WITH ANSWERS SNHU

DAD 220 QUIZ 4 WITH ANSWERS SNHU.

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...

DAD 220 - 4-1 Quiz 2024 With Correct Answers

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