Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Multiple Choice Questions
Q2161: What does the relational database model use to represent data?
- A: Files
- B: Objects
- C: Relations
- D: Trees
View Answer
C
Q2162: In the relational database model, what is a row in a relation called?
- A: Tuple
- B: Attribute
- C: Relation
- D: Entity
View Answer
A
Q2163: In the relational database model, what are columns in a relation referred to as?
- A: Tuples
- B: Attributes
- C: Relations
- D: Entities
View Answer
B
Q2164: What is the primary advantage of using the relational database model?
- A: It simplifies the internal database structure
- B: It provides a conceptual view of data as tables
- C: It optimizes data retrieval speed
- D: It encrypts data by default
View Answer
B
Q2165: How does a DBMS interact with a relational database model?
- A: By directly manipulating the data storage system
- B: By translating conceptual commands into actions on the data storage system
- C: By storing data in files
- D: By creating visual representations of data
View Answer
B
Q2166: Fill in the blank: In the relational database model, data is portrayed as being stored in rectangular _____ called relations.
- A: tables
- B: files
- C: rows
- D: attributes
View Answer
A
Q2167: Fill in the blank: In a relation, a _____ represents a single record or entry, containing information about a particular entity.
- A: tuple
- B: column
- C: relationship
- D: field
View Answer
A
Q2168: Fill in the blank: In the relational database model, the term _____ refers to the characteristics or attributes described by each column in a relation.
- A: tuple
- B: record
- C: relation
- D: attribute
View Answer
D
Q2169: Fill in the blank: The relational database model allows information to be represented in a format similar to that used by _____ programs.
- A: database management system
- B: network management system
- C: operating system
- D: spreadsheet
View Answer
A
Q2170: Fill in the blank: A _____ in the relational database model consists of columns, each of which describes an attribute of the entity represented.
- A: tuple
- B: relation
- C: record
- D: file
View Answer
B