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Wednesday, September 15, 2021

CBSE 12 Computer Science Chapter Wise Marking Scheme, Weightage & Marks Distribution

CBSE Class 12 Computer Science Chapter Wise Weightage & Marks Distribution
CBSE Class 12 Computer Science Chapter Wise Weightage & Marks Distribution

CBSE Class 12 Computer Science Weightage: As the exams are nearing closer we have detailed Computer Science CBSE Class 12 Computer Science chapter wise weightage of marks for the year 2021. Students can use the given CBSE Class 12 Computer Science Marks distribution for planning and preparing the important topics before the exams. Class 12 Computer Science is one of the most scoring subjects in CBSE. Students should plan smartly and work more efficiently to score good marks in the subject. Two ways of working efficiently is to get accustomed to the CBSE Marking Scheme for CBSE Class 12 Computer Science and the important topics.


CBSE Class 12 Computer Science Weightage of Marks

Every year class 12 students look for such marks distribution before or near exams. This is because they think that in this way they will be able to score well in their exam and especially Computer Science. Moreover, they devote time to each chapter according to its marks.


Board

CBSE

Textbook

CBSE Based

Class

CBSE Class 12

Subject

Computer Science

Chapters

All Chapters

Provider

Hsslive.co.in


We have provided the complete CBSE Class 12 Computer Science Chapter Wise Weightage of complete syllabus for students preparing for upcoming exams.

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  4. After you reach the post take a screenshot or write down the CBSE Class 12 Computer Science Chapter Wise Mark Distribution.

CBSE Class 12 Computer Science Chapter Wise Weightage & Marks Distribution


You can find the section wise marks distribution anywhere. There are no particular marks that are reserved for particular chapters but by analysing past 10 years' questions I can give you an idea about it.

So after analysis the previous year question papers we have prepared the CBSE Class 12 Computer Science Chapter Wise Mark Distribution and Weightage for students below:


Unit

No.

Unit Name

Theory

Marks

Periods

Theory

Practical

I

Computational Thinking and

Programming – 2

40

50

30

II

Computer Networks

10

10

---

III

Database Management

20

20

10

Total

70

80

40

Unit I: Computational Thinking and Programming - 2

● Revision of the basics of Python covered in Class XI.

● Functions: scope, parameter passing, mutable/immutable properties of data objects, passing strings, lists, tuples, dictionaries to functions, default parameters, positional parameters, return values, functions using libraries: mathematical and string functions.

● File handling: Need for a data file, Types of file: Text files, Binary files and CSV (Comma separated values) files.

● Text File: Basic operations on a text file: Open (filename – absolute or relative path, mode), Close a text file, Reading and Manipulation of data from a text file, Appending data into a text file, standard input / output and error streams, relative and absolute paths.

● Binary File: Basic operations on a binary file: Open (filename – absolute or relative path, mode), Close a binary file, Pickle Module – methods load and dump; Read, Write/Create, Search, Append and Update operations in a binary file.

● CSV File: Import csv module, functions – Open, Close a csv file, Read from a csv file and Write into a csv file using csv.reader ( ) and csv.writerow( ).

● Using Python libraries: Import Python libraries.

● Data-structures: Lists as covered in Class XI, Stacks – Push, Pop using a list.

Unit II: Computer Networks

● Evolution of Networking: ARPANET, Internet, Interspace Different ways of sending data across the network with reference to switching techniques (Circuit and Packet switching).

● Data Communication terminologies: Concept of Channel, Bandwidth (Hz, KHz, MHz) and Data transfer rate (bps, Kbps, Mbps, Gbps, Tbps).

● Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio link, microwave link and satellite link.

● Network devices: Modem, RJ45 connector, Ethernet Card, Router, Switch, Gateway, WiFi card.

● Network Topologies and types: Bus, Star, Tree, PAN, LAN, WAN, MAN.

● Network Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, HTTP, SMTP, POP3, Remote Login (Telnet) and Internet, Wireless / Mobile Communication protocol such as GSM, GPRS and WLL.

● Mobile Telecommunication Technologies: 1G, 2G, 3G, 4G and 5G; Mobile processors;

Electronic mail protocols such as SMTP, POP3, Protocols for Chat and Video Conferencing: VoIP, Wireless technologies such as Wi-Fi and WiMax

· Network Security Concepts:

Threats and prevention from Viruses, Worms, Trojan horse, Spams

Use of Cookies, Protection using Firewall, https;

India IT Act, Cyber Law, Cyber Crimes, IPR issues, hacking.

● Introduction To Web services: WWW, Hyper Text Markup Language (HTML), Extensible Markup Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Website, Web browser, Web

Servers; Web Hosting.

Unit III: Database Management

Database Concepts: Introduction to database concepts and its need.

Relational data model: Concept of domain, relation, tuple, attribute, degree, cardinality, key, primary key, candidate key, alternate key and foreign key;

Structured Query Language:

General Concepts: Advantages of using SQL, Data Definition

Language and Data Manipulation Language;

Data Types: number / decimal, character / varchar / varchar2, date; SQL commands covered in class XI (2019-20)

SELECT, DISTINCT, FROM, WHERE, IN, BETWEEN, LIKE, NULL / IS NULL, ORDER BY,GROUP BY, HAVING;

SQL functions: SUM ( ), AVG ( ), COUNT ( ), MAX ( ) and MIN ( );

Joins: equi-join and natural join

Interface of Python with an SQL database

- Connecting SQL with Python

- Creating Database connectivity Applications

- Performing Insert, Update, Delete queries

- Display data by using fetchone(),fetchall(),rowcount

Practical


S. No.

Area

Marks

(Total=30)

1

Lab Test:

1. Python program (60% logic + 20% documentation + 20% code quality)


2. Small Python program that sends a SQL query to a database and displays the result.A stub program can be provided.

7



5

2

Report file: Minimum 20 Python programs. Out of this at least 4 programs should send SQL commands to a database and retrieve the result

7

3

Project (that uses the concepts that have been learnt in Class 11 and 12)

8

4

Viva voce

3


Importance of CBSE Class 12 Computer Science Weightage Distribution

Computer Science students should know the CBSE Class 12 Computer Science marks distribution to enhance their preparation in the right direction for the examinations. It will help the students to write an answer and help them to manage their time during the exam effectively.


CBSE Class 12 All Subjects Chapter Wise Weightage & Marks Distribution 2021


Knowing CBSE Class 12 Computer Science Chapter Wise Weightage 2021

After knowing the CBSE Class 12 Computer Science marks distribution 2021, students need to be aware of the CBSE Class 12 Computer Science mark distribution 2021 with exam pattern of CBSE Class 12 Computer Science board exam. Students should check the CBSE Class 12 Computer Science mark distribution 2021 to prepare well for the examination. The exam pattern will make the students familiar with the scheme of plus two total marks for each subject, duration of the exam, the total number of questions and types of questions asked in the exam. It will help the students to prepare for the exam in an effective manner and score well in the result.
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