List of top Computer Science Questions asked in CUET (UG)

Given Relation: \texttt{STUDENT} \begin{center} \begin{tabular}{|c|c|c|} \hline SNO & SNAME & MARKS
\hline 1 & Amit & 20
2 & Karuna & 40
3 & Kavita & NULL
4 & Anuj & 30
\hline \end{tabular} \end{center} Find the value of: \begin{verbatim} SELECT AVG(MARKS) FROM STUDENT; \end{verbatim}

Match List-I with List-II:

List-I (Aggregate function)	List-II (Description)
(A) count(marks)	(III) Count all non null values of marks column
(B) count()	(I) Count all rows
(C) avg(marks)	(II) Finding average of non null values of marks
(D) sum(marks)	(IV) Finding sum of all marks

____________________________________ is used to search for a specific pattern in a column.

The SELECT command when combined with DISTINCT clause is used to:

Given table 'StudAtt' with structure as (Rno, Attdate, Attendance). Identify the suitable command to add a primary key to the table after creation.
Note: We want to make both Rno and Attdate columns as primary key.

A __________ value is specified for the column, if no value is provided.

Given two relations:

Employee with structure as (ID, Name, Address, Phone, Deptno)
Department with structure as (Deptno, Dname)
__________ is used to represent the relationship between two relations Employee and Department.

Identify the relational algebra operation denoted by: \[ \text{Course X Student;} \] where 'Course' and 'Student' are two relations and X is an operation.