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IS301 MIDTERM EXAM NEWEST 2025 ACTUAL
EXAM COMPLETE 100 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+ ||BRAND
NEW!!
The key to correctly determining the cardinality of a relationship between two entities is to evaluate the relationship from ____.the "One" end of the relationship the "Many" end of the relationship the entity that will have the most members (e.g. more STUDENTS than COURSES) both ends - each entity in turn - ANSWER-both ends - each entity in turn
In a relational database, you cannot implement a ____ relationship between two entities, such as STUDENT and COURSE. Some modeling tools will not allow the designer to draw an Entity Relationship Diagram (ERD) that contains such a relationship. 1 / 3
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1-to-Many Many-to-Many 1-to-1 Many-to-1 - ANSWER-Many-to-Many
An application programming interface (API) is a standard tool that provides data structure ____ relative to an an application.keys performance dependence independence - ANSWER-independence
Hard disk drives are mechanical devices with moving parts whereas Random Access Memory (RAM) chips are solid state devices. Regarding virtual memory on database servers, which of the following is closest to the performance difference between them?RAM is 100 times slower than a hard disk RAM is 200 times slower than a hard disk A hard disk is 100 times slower than RAM A hard disk is 200 times slower than RAM - ANSWER-A hard disk is 200 times slower than RAM 2 / 3
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Which two of the following data problems are relational databases intended to minimize?frequent null entries frequent duplicate entries storage of data in tables user-accessible queries - ANSWER-frequent null entries frequent duplicate entries
The preferred relationship cardinality in a relational database implementation is ____.
1 : 1
1 : M
1 : R
M : N - ANSWER-1 : M
True or False. Character data can contain any character or symbol intended for mathematical manipulation. - ANSWER- False
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