Question
Two statements are given followed by two conclusions
numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: Some diaries are books. Some books are registers. Conclusions: I. Some registers are diaries. II. All registers are diaries.Solution
Some diaries are books (I) + Some books are registers (I) → No conclusion. Hence neither conclusion I nor II follow.
Which of the following joins returns all rows from both tables, filling in NULL values for non-matching rows?
Which of the following statements about ACID properties in a DBMS is incorrect?
Which of the following concurrency control techniques allows multiple transactions to read data simultaneously but ensures that only one transaction ca...
Which normal form deals with the issue of transitive dependencies?
Which of the following is used to speed up data retrieval in a relational database?
A collection of Data organized in a manner that allows access, retrieval & use of the data
Which of the following storage devices is considered non-volatile?
Which tier uses application server
In a relational database, a foreign key is used to:
Which of the following memories has the shortest access times?
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