PREVIOUS YEARS CBSE BOARD OUESTIONS

Part 1: Core Concepts & Comparisons

1. Differentiate between communication using Optical Fiber and Ethernet Cable in the context of wired medium of communication technologies .
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Answer:
• Optical Fiber: Very fast, expensive, and immune to electromagnetic interference .
• Ethernet Cable: Slower as compared to optical fiber, less expensive, and prone to electromagnetic interference .

Part 2: Previous CBSE Board Questions

2. Ravi was trying to log-in to his internet-banking account. He noticed that the URL of the net banking starts with 'https'. The 's' in 'https' stands for :
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Correct Answer: (iii) Secure
Explanation: HTTPS stands for HyperText Transfer Protocol Secure, utilizing encryption for secure data transmission.
3. What is meant by the homepage of a website ?
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Answer: The homepage is the main or introductory web page of a website, serving as a central starting point for navigation.
4. Write the full form of Cc and Bcc (used in email communication). Explain the difference between them .
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Answer:
• Cc (Carbon Copy): All recipients can see who else received the email.
• Bcc (Blind Carbon Copy): Recipients cannot see the email addresses listed in the Bcc field.
5. Which of the following is not a network protocol ?
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Correct Answer: (i) HTML
Explanation: HTML is a markup language for creating web pages, whereas HTTP, SMTP, and FTP are communication protocols.
6. XML was not designed to :
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Correct Answer: (b) present the data
Explanation: XML stores and carries data using user-defined tags, but presentation is handled by styling languages like CSS.

Part 3: Case Study - MyPace University (Naya Raipur)

Case Study: MyPace University is setting up its academic blocks at Naya Raipur. Study the layout and answer questions (a) to (e)[cite: 3, 4]:
Law Block 15 Computers Technology Block 40 Computers Business Block 25 Computers HR Center 115 Computers 40m 30m 15m
Figure: MyPace University Layout

(a) Suggest the most suitable place to install the server of this University with a suitable reason .

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Answer: HR Center, because it has the maximum number of computers (115 computers), minimizing network traffic.

(e) The university is planning to connect its admission office in Delhi, which is more than 1250km away. Which type of network (LAN, MAN, or WAN) will be formed? Justify .

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Answer: WAN (Wide Area Network), because it spans across countries or large distances exceeding thousands of kilometers.

Part 4: Test Yourself - SunRise Pvt. Ltd. (Ahmedabad)

Case Study: SunRise Pvt. Ltd. is setting up a network in Ahmedabad across four departments: MrktDept, FunDept, Legal Dept, SalesDept .
MrktDept 20 Computers FunDept 8 Computers Legal Dept 10 Computers Sales Dept 42 Computers 80m 180m 50m
Figure: SunRise Pvt. Ltd. Layout

(ii) Suggest the most suitable building to place the server with a suitable reason .

Show Answer
Answer: Sales Dept, because it has the maximum number of computers (42 computers) .

(iv) The organization is planning to link its sale counter situated in various parts of the same city. Which type of network (LAN, WAN, MAN) will be formed? Justify[cite: 4, 5].

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Answer: MAN (Metropolitan Area Network), because it connects computers and offices spread across a single city[cite: 4, 5].

Part 5: Test Yourself Part II - Global Pvt. Ltd. (Bangalore)

Case Study: Global Pvt. Ltd. is setting up a network in Bangalore across four departments (Accounts, Research Lab, Store, Packaging Unit) .
Accounts 25 Computers Research Lab 100 Computers Store 15 Computers Packaging Unit 60 Computers 55m 150m 60m
Figure: Global Pvt. Ltd. Layout

(ii) Suggest the most suitable place (i.e. building) to house the server of this organization .

Show Answer
Answer: Research Lab, because it houses the maximum number of computers (100 computers) .

3. The following is a 32-bit binary number separated by decimal points: `192.158.1.38`. What is it? What is its importance ?

Show Answer
Answer: It is an **IP Address** (IPv4) . Its importance is that it uniquely identifies every device connected to a computer network, enabling data routing and communication .
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