12th Standard Computer Science English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Eight

1.

A __________ is a collection of related fields in a table.

(a)

Attributes

(b)

SQL

(c)

Record

(d)

Relations

2.

Which command is used to retrieve a subset of records from one or more tables?

(a)

QUERY

(b)

SUBSET

(c)

SET

(d)

SELECT

3.

Which of the following ensures the accuracy and reliability of the data in the database?

(a)

Constraint

(b)

Table

(c)

Classes

(d)

Data types

4.

Who are the one responsible for identifying the data to be stored in the data base?

(a)

DBA

(b)

Application programmers

(c)

End user

(d)

Database designers

5.

In which of the following data organized in a way that, it can be easily accessed, managed and updated?

(a)

Database

(b)

DBMS

(c)

Structure

(d)

Object

6.

print (format (14,'f') displays

(a)

14.00

(b)

14

(c)

14.0000

(d)

14.000000

7.

Which of the following is not a type of function in python?

(a)

Control

(b)

Lambda

(c)

Recursion

(d)

Built in

8.

Which of the following can be accessed by using object with dot (.) operator?

(a)

List

(b)

Tuples

(c)

Dictionary

(d)

None of these

9.

Which of the following is not a format in which CSV file data can be read?

(a)

Quotes

(b)

Pipe

(c)

Semi colon

(d)

Comma

10.

CSV means

(a)

Condition separated values

(b)

Colon separated values

(c)

C++ solution values

(d)

Comma separated values

11.

A theoretical performance analysis of an algorithm is called_________

(a)

Posteriori testing

(b)

Priori estimates

(c)

Algorithmic efficiency

(d)

Algorithmic testing

12.

Which of the following function used to delete one or more elements in the list where the index value is not known

(a)

del ()

(b)

remove ()

(c)

delete ()

(d)

delmore ()

13.

How many components required to find the space required by an algorithm?

(a)

4

(b)

3

(c)

6

(d)

2

14.

Which of the following is not an example of data structures?

(a)

Control statement

(b)

Structure

(c)

List

(d)

Dictionary

15.

Which of the following can not be identify by an identifier

(a)

constant

(b)

variable

(c)

function

(d)

class

16.

Identify the function call statement in the following snippet.
if __name__ =='__main__':
main(sys.argv[1:])

(a)

main(sys.argv[1:])

(b)

__name__

(c)

__main__

(d)

argv

17.

Which of the following module is provided by Python to do several operations on the CSV files?

(a)

py

(b)

xls

(c)

csv

(d)

os

18.

Relational database model was first proposed by

(a)

E F Codd

(b)

E E Codd

(c)

E F Cadd

(d)

E F Codder

19.

Let setA={3,6,9}, setB={1,3,9}. What will be the result of the following snippet?
print(setA|setB)

(a)

{3,6,9,1,3,9}

(b)

{3,9}

(c)

{1}

(d)

{1,3,6,9}

20.

In which arguments the correct positional order is passed to a function?

(a)

Required

(b)

Keyword

(c)

Default

(d)

Variable-length

21.

What is the output of the following snippet?
i=1
while True:
if i%3 ==0:
break
print(i,end='')
i +=1

(a)

12

(b)

123

(c)

1234

(d)

124

22.

Time complexity of bubble sort in best case is

(a)

θ (n)

(b)

θ (nlogn)

(c)

θ (n2)

(d)

θ (n(logn) 2)

23.

Which of the following is not a token?

(a)

Interpreter

(b)

Identifiers

(c)

Keyword

(d)

Operators

24.

The data type whose representation is known are called

(a)

Built in datatype

(b)

Derived datatype

(c)

Concrete datatype

(d)

Abstract datatype

25.

Which of the following defines what an object can do?

(a)

Operating System

(b)

Compiler

(c)

Interface

(d)

Interpreter

12th Standard Computer Science English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Eight

QB365 Student Learing Managemnet System

Std: 12th Standard - Computer Science

chapter: - Model Question paper

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