Question
In each question below is given a statement followed
by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement. Statement: "The city council should install solar-powered streetlights in all public parks to reduce electricity costs." Assumptions: I. Public parks currently consume a significant amount of electricity for lighting. II. Solar-powered streetlights are the most efficient alternative to traditional lighting systems.Solution
The statement suggests a change to reduce costs, which implies: Assumption I: If the current electricity consumption for lighting in parks wasn't significant or costly, there would be no reason to propose a change specifically to "reduce electricity costs." → Implicit. Assumption II: The statement suggests solar power as a solution, but it does not claim it is the only or the most efficient way compared to all other possible technologies (like LED or wind-powered lights). It is simply one proposed method. → Not Implicit. Thus, only Assumption I is implicit.
If every non-key attribute is functionally dependent on the primary key, the relation will be in
Which SQL clause is used to group rows based on one or more columns?
Which SQL isolation level allows phantom reads but prevents dirty reads and non-repeatable reads?
Which of the following operators is used to compare a value to a list of literal values that have been specified?
An SQL `VIEW` is a:
A column or set of columns that uniquely identifies each row in a table is called a:
Which SQL command is used to retrieve data from a table?
Which normal form eliminates transitive dependency?
What is the maximum number of processes that can be in the Ready state?
Which SQL statement is used to remove all rows from a table without logging individual row deletions?
