Related Questions

If there are two entities with a relationship between them, and one of the entities is completely dependent on the other, then which of the following must exist?
A Derived attribute
B Optional one cardinality
C Multi-valued attribute
D Weak entity
An enterprise data model is a relational model that shows the high-level entities for the organization and associations among those entities.
A True
B False
People speculate when they consider a situation and assume something to be true based on inconclusive evidence. Which situation below is the best example of Speculation ?
A Francine decides that it would be appropriate to wear jeans to her new office on Friday after reading about "Casual Fridays" in her employee handbook.
B Mary spends thirty minutes sitting in traffic and wishes that she took the train instead of driving.
C After consulting several guidebooks and her travel agent, Jennifer feels confident that the hotel she has chosen is first-rate.
D When Emily opens the door in tears, Theo guesses that she's had a death in her family.
The school principal has received complaints from parents about bullying in the school yard during recess. He wants to investigate and end this situation as soon as possible, so he has asked the recess aides to watch closely. Which situation should the recess aides report to the principal?
A A girl is sitting glumly on a bench reading a book and not interacting with her peers.
B Four girls are surrounding another girl and seem to have possession of her backpack.
C Two boys are playing a one-on-one game of basketball and are arguing over the last basket scored.
D Three boys are huddled over a handheld video game, which isn't supposed to be on school grounds.
If Sabbir requires 5 minutes to make a box and Zoha requires 7 minutes to make a box, what will be the number of boxes made by Sabbir to the number of boxes made by Zoha if they work for 5 hours and 50 minutes?
A 5 to 6
B 7 to 5
C 5 to 7
D 6 to 5
Which of the following are the properties of entities?
A Groups
B Table
C Switchboard
D Attributes
Which of the following indicates the maximum number of entities that can be involved in a relationship?
A Minimum cardinality
B Maximum cardinality
C ERD
D Greater Entity Count
Which of the following indicates the minimum number of entities that must be involved in a relationship?
A Minimum cardinality
B Maximum cardinality
C ERD
D Greater Entity Count (GEC)
Which of the following database activities determines the entities, attributes, and relationships of data?
A Conceptual data modeling
B Logical database design
C Physical database design and definition
D Database implementation
Entities can be associated with one another in which of the following?
A Entities
B Attributes
C Identifiers
D Relationships

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