Find real questions from previous competitive exam papers with answers and solutions.
Leave the keyword blank to browse saved questions for your selected exam, newest papers first. Add a keyword, year or topic to narrow the results.
Browse complete papersEntity integrity constraint States that:
the value of the primary key must be unique in all tuples
the value of the primary key can't be null
the value of foreign key can't be null
a table can't have both primary key and foreign key
Correct answer
the value of the primary key must be unique in all tuples
Addition of binary number 11011 and 10111 is :
10010
11001
110010
010010
Correct answer
10010
Which of the following statement is wrong in relation with stack?
It is a linear data structure.
It cannot be implemented through the use of the attached list.
It follows the concept of last come, first out service.
It can be implemented through a one dimensional array.
Correct answer
It is a linear data structure.
Which of the following options is advantage of Mobile computation?
Quality of Connectivity
Easily translate from one place to another place
Use of Electricity
Security
Correct answer
Quality of Connectivity
Which of the following is used to protect the private network from external attacks.
Firewall
Concrete wall
Encryption
Digital signature
Correct answer
Firewall
Which of the following is an atomic attribute?
Date of birth
Telephone number
Name
Age
Correct answer
Date of birth
Deque data structure is also known as:
Double Queue
Deterministic Queue
Equal Queue from either
Distributed Queue
Correct answer
Double Queue
Which of the following option has linear data structure?
Turnery Tree
binary Tree
Stack
Graph
Correct answer
Turnery Tree
Number of different binary arrays (an array in which each cell can store either 0 or 1 is called binary array) of order n × n is :
22n
2n×n
n2
2n
Correct answer
22n
Which of following option is a DML command of oracle?
Alter
Create
Drop
Delete
Correct answer
Alter