Class 12 Computer Science MCQ set
According to the new curriculum and grid of NEB, there is an abrupt change in question pattern. Computer Science which used have 75 as full mark is now reduced to 50 mark. Moreover, among 50, 9 mark will be of objective question i.e. MCQ (Multiple Choice Question) and rest 41 mark will be of Subjective. Here in the post, we have created 3 different practice set for MCQ of Class 12 along with the model question.
Class 12 Objective Questions set - 1
1) In which type of database model each node can have only one parent and multiple child?
a) Hierarchical
b) Network
c) Relational
d) Multilevel
2) In which type of transmission media data are transmitted in the form of photons instead of electrons?
a) Twisted pair
b) Co-axial
c) Fibre optics
d) Infrared
3) How many layers are there in OSI (Open System Interconnection) model?
a) 4
b) 5
c) 6
d) 7
4) Which of the following is not the event object of JavaScript?
a) onsubmit
b) onclick
c) onselect
d) onpost
5) What is the Total memory allocated by union?
a) Sum of all
b) Highest among all
c) Lowest among all
d) None of above
6) Which of the following is the correct declaration of pointer variable?
a) int &p;
b) int *p;
c) int p*;
d) int p&;
7) Which of the following is not a file operation mode?
a) r
b) a
c) w+
d) rw
8) Which property of OOP means same function behave differently?
a) Inheritance
b) Encapsulation
c) Polymorphism
d) Abstraction
9) The network of physical devices which are built-in with sensors, hardware and software?
a) AI
b) VR
c) IOT
d) Cloud computing
Solutions of Set - 1
- a) Hierarchical
- c) Fibre optics
- d) 7
- d) onpost
- b) Highest among all
- b) int *p;
- d) rw
- c) Polymorphism
- c) IOT
Class 12 Objective Questions set - 2
1) Which of the following is not DBMS?
a) dBase
b) FoxPro
c) Oracle
d) PHP
2) In which type of transmission media sender and receiver may not be in LOS (Line of Sight)?
a) Microwave
b) Radiowave
c) Infrared
d) Optical Fibre
3) Which of the following is not a protocol?
a) FTP
b) SMTP
c) POP
d) UTP
4) Which of the following statement is used to insert image in HTML?
a) <image source = “ “>
b) <img source = “ “>
c) <img src = “ “>
d) <image src = “ “>
5) Which of the following is DML statement?
a) DROP, ALTER, CREATE
b) SELECT, INSERT, UPDATE, DELETE
c) TRUNCATE, PROVOKE
d) None of above
6) How can we access variable insight structure having following statement.
struct employee
{
int id;
char n[10];
};
struct employee e;a) e.id
b) e_id
c) id.e
d) id_e
7) Which of the following is not the features of OOP?
a) Inheritance
b) Encapsulation
c) Polymorphism
d) Looping
8) Which of the following is not the phases of SDLC?
a) System analysis
b) System design
c) System testing
d) System deploying
9) Which of the following is service model of cloud computing?
a) IaaS
b) PaaS
c) SaaS
d) All of above
Solutions of Set - 2
- d) PHP
- b) Radiowave
- d) UTP
- c) <img src = “ “>
- b) SELECT, INSERT, UPDATE, DELETE
- a) e.id
- d) Looping
- d) System deploying
- d) All of above
Class 12 Objective Questions set - 3
1) Which is the smallest data storage hierarchy in database file?
a) Bit
b) Character
c) Field
d) Record
2) In which type of network architecture each node has equal authority?
a) Client-server
b) Peer to Peer
c) Decentralized
d) Centralized
3) In which type of topology does every node are connected to centrally located devices called hub?
a) Bus topology
b) Star topology
c) Ring topology
d) Tree topology
4) Which is the non-primitive (derived) datatype used in JavaScript?
a) String
b) Number
c) Boolean
d) Array
5) Which statement is used in PHP to display any text in the screen?
a) printf(“Hello world”);
b) print “Hello world”;
c) document.write(“Hello world”);
d) echo “Hello world”;
6) What will be the output of the following program?
void main( )
{
char a[10] = “apple” , b[10] = “apple” ;
int c;
c = strcmp (a, b);
printf (“Output: %d”, c);
getch( );
}a) 0
b) Output: 0
c) Output: 1
d) Output: -1
7) Which of the following is system design tool?
a) Context diagram
b) Data Flow Diagram (DFD)
c) ER diagram (Entity Relationship)
d) All of above
8) The process that allow hiding of data and function?
a) Inheritance
b) Encapsulation
c) Polymorphism
d) Abstraction
9) The mechanism analyzing complex and large set of data to uncover valuable information
a) AI
b) Cloud computing
c) IOT
d) Big data
Solutions of Set - 2
- a) Bit
- b) Peer to Peer
- b) Star topology
- d) Array
- d) echo “Hello world”;
- b) Output: 0
- d) All of above
- b) Encapsulation
- d) Big data
MCQ Model Questions set by CDC
1) Which of the statements are used in DDL?
a) CREATE, ALTER and DROP
b) CREATE, INSERT and SELECT
c) INSERT, UPDATE and DELETE
d) DELETE, ALTER and DROP
2) With SQL, how do you select all the records from table named “Persons” where the value of the column “FirstName” ends with an “a”?
a) SELECT * FROM Persons WHERE FirstName = ‘a’
b) SELECT * FROM Persons WHERE FirstName LIKE ‘a%’
c) SELECT * FROM Persons WHERE FirstName LIKE ‘%a’
d) SELECT * FROM Persons WHERE FirstName = ‘%a%’
3) Which of the following statements is true about a star topology?
a) Each device is connected to a switch or hub
b) Each device is connected to each other
c) Each device is connected to a trunk
d) Each device is connected to a terminal
4) Which of the following is the correct syntax to display “Stay Safe” in an alert box using JavaScript?
a) alert-box(“Stay Safe”);
b) confirm(“Stay Safe”);
c) msgbox“Stay Safe”);
d) alert(“Stay Safe”);
5) What is the use of <A> tag?
a) To insert an image.
b) To create a link
c) To create a hyperlink.
d) To create a list.
6) What is the output of given C program?
void main( )
{
char str1[] = “FIRST” ; char str2[] = “SECOND” ; strcpy(str2,str1);
printf(“%s %s”, str1, str2); printf(“%d”, (str1 != str2));
printf(“%d”, strcmp(str1, str2)); }a) FIRST FIRST 0 0
b) FIRST FIRST 1 1
c) FIRST FIRST 1 0
d) FIRST FIRST 0 1
7) Where is a class derived in inheritance?
a) Superclass
b) Subclass
c) Subsetclass
d) Relativeclass
8) Which of these is the correct order of the SDLC?
a) Analysis, Design, Coding, Testing, Implementation
b) Analysis, Design, Testing, Implementation, Coding
c) Implementation, Coding, Analysis, Design, Testing
d) Design, Testing, Implementation, Coding, Analysis
9) Why is cloud computing popular nowadays?
a) Cost-sharing and easily accessible
b) As modern technology and costly
c) Accessible and freely available
d) Affordable to all
Model question set solution
- a) CREATE, ALTER and DROP
- c) SELECT * FROM Persons WHERE FirstName LIKE ‘%a’
- a) Each device is connected to a switch or hub
- d) alert(“Stay Safe”);
- c) To create a hyperlink.
- c) FIRST FIRST 1 0
- a) Subclass
- a) Analysis, Design, Coding, Testing, Implementation
- a) Cost-sharing and easily accessible
Click here for notes of subjective part
