Question
Speed of boat is 20 km/hr. Speed of the stream is 20%
less than speed of boat. Then find time taken by boat to go 72 km downstream?Solution
Speed of stream = 20 × (80/100) = 16 km/hr Time taken to go 72 km = 72/(20 + 16) = 2 hrs
In an Object-Oriented program, which control flow construct is primarily used to handle unexpected events or errors that occur during program execution,...
Which normal form ensures no partial dependency of non-prime attributes on a candidate key?
Which of the following is a type of database index?
Which of the following commands are used to put a restriction on the number of rows returned from a query?
In an E-R Diagram, entities are typically represented by:
Which constraint ensures that a column contains only unique values, but allows NULL values?
Which of the following is a common technique for concurrency control in databases?
In paging, the page size is defined by:
In two-phase locking, a transaction releases its locks:
The "Dirty Read" problem occurs when:
Relevant for Exams:
