Class 12 Computer Sciences MCQ Important Question
According to the new curriculum and grid of NEB, there is an abrupt change in question pattern. Computer Science which used to 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 50 Important MCQ Collection of Class 12 along with the model question. The MCQ answer in this blog was indicated by the color yellow. Class 12 Computer Sciences
MCQ Important Question for the Exam:
1. Which statement is used in PHP to display any text in the screen?
a) printf(“Hello world”); b) echo “Hello world”;
c) document.write(“Hello world”); d) print “Hello world”;
2. What is the use of <A> tag?
a) To insert an image. b) To create a link
c)Tocreate a hyperlink. d) To create a list.
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. In which topology connected with other two computers in
circular form?
a. Star b. Bus
c. Ring d. Hybrid
5. What does "MAC" stands for in MAC Address?
a. Mandatory Access Control b. Media Access Control
c. Micro Access Control d. Media Access Certificate
6. ….... refers to the sending, receiving, and processing of information by electronic means.
a. computer b. communication
c. software d. Program
7. Which refers to the communication media?
a. UTP cable b. Fiber optic cable
c. Satellite d. All of the above
8. Which one is not network topology?
a. Star b. Ring
c. Client server d. BUS
9. Which is not a guided media?
a. UTP Cable b. STP Cable
C. Satellite d. Fiber Optic
10. Which device is necessary to operate the Internet?
a. CD-ROM b. ISP
c. Modem d. All of the above
11. The primary key dos not accept…..
a. Text b. Number
c. Null value d. None of the above
12. Which statement is used to delete a table in SQL?
a. REMOVE b. DROP
c. Alter d. Rename
13. The data type appropriate to store salary is
a. Memo b. currency
c. Text d. Auto
14. In Ms- Acess Data are stored in
a. Form b. Query
c. Table d. All of the above
15. …… is the DBMS
a. Fox-pro b. MS-excel
c. Lotus-123 d. All of the above
16. IoT stands for……….
a. Information of technology b. Internet of Things
c. Internet of Technology d. International of Things
17. In which phase of SDLC software code is done?
a. Analysis b. Design
c. Development d. Maintenance
18. SDLC stands for...
a. Scheme Development Life Cycle
b. Software/System Development Life Cycle
c. Software/System Design Life Cycle d. Scheme Design Life Cycle
19. …...is also called a Preliminary Investigation or Need Analysis Phase.
a. System design b. System study
c. System development d. System testing
20. 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
21. Date/ Time occupies …. Bytes of memory
a) 4 b) 2
c) 8 d) 16
22. Which of the following techniques is not implemented to protect a database?
A) Rollback b. Backup
c. Recovery d.Firewall
23. 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
24. In which normal form of database, atomicity is introduced?
A) First B) Second
C) Third D) Fourth
25. 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
26. To insert a record into a table, we use …………
a) Insert b) Delete
c) Alter d) All of the above
27. Rows of a relation are known as the
a) Degree b) tuples
c) Entity d) All of the above
28. A variable which holds memory address of another variable is………
a) Function b) Pointer
c) Array d) Structure
29. Which is not a type of query
a) Search b) Select
c) Update d) All of the above
30. The key that identifies each record uniquely, is called…………
a) Primary key b) Unique key
c) Key record d) Field name
31. Which forms simplifies and ensures that there are minimal data
Aggregates and repetitive groups:
a) 1NF b) 2NF
c) 3NF d) All of the mentioned
32. Which of the following is/are the main goals of a distributed database?
a) Interconnection of database b) Incremental growth
c) Reduced communication overhead d) All of the above
33. PHP stands for …
a) Hypertext Processor b) Hyper Markup Processor
c) Hyper Markup Preprocessor d) Hypertext Preprocessor
34. Which of the following is a group of one or many attributes that uniquely Identifies a row?
a) Key b) Determinant
c) Tuple d) Relation
35. In general, a file is basically a collection of all related
a) Rows & Columns b) Fields
c) Database d) Records
36. Give an example of half duplex mode of data communication.
a) TV b) Radio
c) Walkie-Talkie d) Internet
37. Which of the following can’t be done with client-side JavaScript?
a) Validating a form b) Sending a form’s content by email
c) Storing the form’s contents to a database file on the server
d) None of the above
38. Which one of the following should not be used while sending password or other sensitive information?
a) GET b) POST
c) REQUEST d) NEXT
39. Which feature of OOP indicates code reusability?
a) Abstraction b) Polymorphism
c) Encapsulation d) Inheritance
40. Which of the following is the first step in SDLC framework?
a) Feasibility Study b) Requirement Gathering
c) Communication d) System Analysis
41. Which segment of e-commerce model does eBay belong to?
a) B2B b) B2C
c) C2B d) C2C
42. A data of the file is stored in…………
a. Hard Disk b. RAM
c. ROM d. None
43. Which of the following is a server-side scripting language?
A) JavaScript B) MySql
C) PHP D) Jquery
44. Which device is necessary to operate the internet ?
a. CD-ROM b. ISP
c. Modem d. All of the above
45. In Ms acess, we enter data using……
a. Form b. Table
c. Report d. Both a and b
46. concat() is ……
a. integer method b. string method
c. image method d. None of the above
47. SaaS stands for ………….
a. Software as a service b. system as a service
c. Both a and b d. None of the above
48. ………………… is something that an operator acts on
a. Operand b. operation
c. operator d. None of the above
49. Which of the following commands is executed in PHP to concatenate the variables $x with $y?
A) $x + $y B) $x=$y
C) concat ($x,$y) D) $x.$y
50. Which is not communication media ?
a. Wire b. Microwave
c. Satellite d. NIC
51. What does MAC stands for MAC Address
a) Mandatory Access Control b) Media Access control
c) Micro Access Control d) Media Access Certificate