Computer Science · CBSE

Board exam

2026Class 1270 marks37 questions

11 of its 37 questions are here. The rest have a figure or are still being checked, so for now they're only in the official PDF.

Sit this paper against the clock, marked by its official answers, or get a new paper like it. Sign in first; practising is part of Pro.

Source: CBSE Board Examination 2026, Class 12 Computer Science (083), published by CBSE. CBSE's ZIP of every set

Download PDF

11 questions

Q3Section A1 mark
$Which of the following expressions in Python evaluates to True ?$
1. A $2>3 and 2<3$
2. B $3>1 and 2$
3. C $3>1 and 3>2$
4. D $3>1 and 3<2$
Q7Section A1 mark
$Which of the following statements is true about dictionaries in Python ?$
1. A $A dictionary is an example of sequence datatype.$
2. B $A dictionary cannot have two elements with same key.$
3. C $A dictionary cannot have two elements with same value.$
4. D $The key and value of an element cannot be the same.$
Q8Section A1 mark
$If L is a list with 6 elements, then which of the following statements will raise an exception ?$
1. A $L.pop(1)$
2. B $L.pop(6)$
3. C $L.insert(1,6)$
4. D $L.insert(6,1)$
Q12Section A1 mark
$A table has two candidate keys, one of which is chosen as the primary key. How many alternate keys does this table have ?$
1. A $0$
2. B $1$
3. C $2$
4. D $3$
Q13Section A1 mark
$Which of the following SQL command can change the degree of the existing relation ?$
1. A $DROP TABLE$
2. B $ALTER TABLE$
3. C $UPDATE\dotsSET$
4. D $DELETE$
Q15Section A1 mark
$A relation in MySQL database consists of 2 tuples and 3 attributes. If 2 attributes are deleted and 4 tuples are added, what will be the cardinality of the relation ?$
1. A $4$
2. B $5$
3. C $6$
4. D $7$
Q16Section A1 mark
$Which aggregate function in SQL returns the smallest value from a column in a table ?$
1. A $MIN()$
2. B $MAX()$
3. C $SMALL()$
4. D $LOWER()$
Q17Section A1 mark
$With respect to computer networks, which of the following is the correct expanded form of RJ 45 ?$
1. A $Radio Jockey 45$
2. B $Registered Jockey 45$
3. C $Radio Jack 45$
4. D $Registered Jack 45$