IT Board MCQ

The set of all possible values that an attribute may contain is called the ___________ of an attribute.

• Domain

• Relation

• Set

• Schema

If x = 20, y = 10, what will be the value of x, if we write the statement x += y ?

• 30

• 20

• 10

• 21

Identify the operator that performs pattern searching in MYSQL.

• EXISTS operator

• BETWEEN operator

• LIKE operator

• SEARCH operator

Which of the following is not a DDL statement ?

• CREATE

• SELECT

• ALTER

• DROP

The term used to describe the information, systems and applications that support and drive business processes, most often using web technologies, is called

• E-education

• E-governance

• E-commerce

• E-business

Which one of the following is not a search engine ?

• Bing

• Yahoo

• Google

• Windows

Which of the following is an SQL aggregate function ?

• Max

• Avg

• Sum

• Count

Which SQL statement is used to update data in a database ?

• Save

• Update

• Saveas

• Modify

An expression involving byte, int and literal numbers is promoted to which of these ?

• int

• long

• byte

• bloat

Which of these is an incorrect statement ?

• It is necessary to use new operator to initialize an array.

• Array can be initialized using comma separated expressions surrounded by curly braces.

• Array can be initialized when it is declared.

• None of the above