Day 25 – Chapter 4: Types of Networks
Class 11 Computer Science
Introduction to Types of Networks (नेटवर्क के प्रकारों का परिचय)
A network is a collection of devices connected to share data and resources. Based on the area they cover and their purpose, networks are classified into LAN, WAN, MAN, and PAN.
नेटवर्क उपकरणों का एक संग्रह है जो डेटा और संसाधनों को साझा करने के लिए जुड़ा होता है। उनके द्वारा कवर किए गए क्षेत्र और उद्देश्य के आधार पर, नेटवर्क को LAN, WAN, MAN और PAN में वर्गीकृत किया जाता है।
1. Local Area Network (LAN) (लोकल एरिया नेटवर्क)
LAN is a network confined to a small geographic area, such as an office, school, or home.
LAN एक नेटवर्क है जो छोटे भौगोलिक क्षेत्र, जैसे कार्यालय, स्कूल या घर तक सीमित होता है।
- Features:
- Covers a small area (e.g., a building).
- High speed and low latency.
- Applications: File sharing, printer sharing, and internet access in offices or schools.
2. Wide Area Network (WAN) (वाइड एरिया नेटवर्क)
WAN spans a large geographic area and connects multiple LANs or other networks.
WAN एक बड़ा भौगोलिक क्षेत्र कवर करता है और कई LAN या अन्य नेटवर्क को जोड़ता है।
- Features:
- Covers large areas like cities, countries, or even continents.
- Relatively slower than LAN.
- Applications: Internet and global communication.
3. Metropolitan Area Network (MAN) (मेट्रोपॉलिटन एरिया नेटवर्क)
MAN connects devices within a city or large campus, larger than LAN but smaller than WAN.
MAN उपकरणों को एक शहर या बड़े परिसर में जोड़ता है, जो LAN से बड़ा लेकिन WAN से छोटा होता है।
- Features:
- Covers areas like cities or large campuses.
- Intermediate speed and coverage.
- Applications: Government offices, universities, and city-based networks.
4. Personal Area Network (PAN) (पर्सनल एरिया नेटवर्क)
PAN is a small network used for personal devices like phones, laptops, and headphones.
PAN एक छोटा नेटवर्क है जो व्यक्तिगत उपकरणों जैसे फोन, लैपटॉप और हेडफोन के लिए उपयोग किया जाता है।
- Features:
- Covers a very small area (e.g., a room).
- Short-range connectivity (e.g., Bluetooth, Infrared).
- Applications: Wireless communication between personal devices.
Comparison of Network Types (नेटवर्क प्रकारों की तुलना)
| Type | Covers Area | Speed | Applications |
|---|---|---|---|
| LAN | Small (e.g., building) | High | Offices, Schools |
| WAN | Large (e.g., countries) | Low | Internet |
| MAN | Medium (e.g., city) | Moderate | Universities, Government Offices |
| PAN | Very Small (e.g., room) | Varies | Personal Devices |
Practice Questions (अभ्यास प्रश्न)
Multiple Choice Questions (MCQs)
- What does LAN stand for?
(a) Local Area Network | (b) Large Area Network | (c) Limited Access Network | (d) None - Which network covers the largest area?
(a) PAN | (b) LAN | (c) WAN | (d) MAN - Which network is used for personal devices?
(a) WAN | (b) MAN | (c) PAN | (d) LAN - What is an example of WAN?
(a) Internet | (b) Bluetooth | (c) Wi-Fi | (d) None - What does MAN connect?
(a) Personal devices | (b) Cities or campuses | (c) Countries | (d) None - What is the range of PAN?
(a) Small | (b) Medium | (c) Large | (d) None - What is an example of LAN?
(a) Office Network | (b) Internet | (c) Mobile Network | (d) None - Which network type is commonly used in government offices?
(a) LAN | (b) MAN | (c) WAN | (d) PAN - Which network type is limited to a single building?
(a) LAN | (b) WAN | (c) PAN | (d) MAN - Which technology is used for short-range personal communication?
(a) Bluetooth | (b) Wi-Fi | (c) Infrared | (d) None
Answers to MCQs:
1: (a), 2: (c), 3: (c), 4: (a), 5: (b), 6: (a), 7: (a), 8: (b), 9: (a), 10: (a)
Short Answer Questions (लघु उत्तरीय प्रश्न)
- What is a LAN?
Answer: LAN is a network confined to a small area like an office or building. - What does WAN stand for?
Answer: Wide Area Network. - What is the main feature of PAN?
Answer: Short-range communication for personal devices. - List two applications of MAN.
Answer: University networks and city-based government networks. - Compare LAN and WAN.
Answer: LAN covers small areas with high speed, while WAN covers large areas with lower speed.
Long Answer Questions (दीर्घ उत्तरीय प्रश्न)
- Explain the types of networks with examples.
- Discuss the advantages and disadvantages of LAN, WAN, and MAN.
- What are the applications of PAN in daily life?
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