171. In which is do not fully support the domain concept:
Correct answer: (C)
RDBMS
172. Which is used for searching and retrieving records from the database:
Correct answer: (D)
DML
173. How many types of data structures used in hierarchical model:
Correct answer: (A)
2
174. PCR stands for:
Correct answer: (B)
Parent child relationship
175. Which types of data structures used in Hierarchical model:
Correct answer: (C)
Both
176. ___________ it is an1:N relationship between two different record types:
Correct answer: (C)
PCR
177. Which is a database model used to represent objects and the relationship among these objects:
Correct answer: (C)
Hierarchical model
178. RDBMS stands for:
Correct answer: (A)
Relational database management system
179. Which algebra is widely used in computer science:
Correct answer: (B)
Relational algebra
180. ___________ algebra has similar power of expression as relational calculus and first order logic:
Correct answer: (B)
Relational algebra