75 MCQ [APPLICATION LEVEL] - Computer Network and Communication - SEE COMPUTER SCIENCE - CDC NEW CURRICULUM 2083 [

  75 MCQ [APPLICATION LEVEL] -  Computer Network and Communication - SEE COMPUTER SCIENCE - CDC NEW CURRICULUM 2083 

1. Jagat Mandir Secondary School is introducing online classes with live video lessons. The school needs the fastest and most reliable broadband connection for smooth video conferencing. Which broadband technology should the school choose?

A. DSL B. Dial-up C. Fiber-optic Broadband ✅ D. Satellite Broadband
Explanation: Fiber-optic broadband provides the highest speed, high bandwidth, and reliable performance for online classes and video conferencing.

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2. A rural health post is located in a remote Himalayan village where wired Internet services are unavailable. Which broadband technology would be the most suitable for providing Internet access?

A. DSL B. Cable Broadband C. Fiber-optic Broadband D. Satellite Broadband ✅
Explanation: Satellite broadband provides Internet connectivity in remote areas where cable and telephone infrastructure are unavailable.

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3. During an online examination, students experience slow Internet even though the school has subscribed to a high-bandwidth connection. Which factor best explains this situation?

A. High bandwidth always guarantees high throughput.
B. Actual throughput may be lower than bandwidth because of network congestion. ✅
C. Frequency automatically increases Internet speed.
D. Data packets are not required for communication.
Explanation: Bandwidth is the maximum capacity, whereas throughput is the actual amount of data successfully transmitted, which may decrease due to congestion.

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4. A software company frequently transfers large design files between its offices. To make the transfer more reliable, the files are divided into many small units before transmission. What are these units called?

A. Frames B. Packets ✅ C. Sectors D. Clusters
Explanation: Large files are divided into packets so they can be transmitted efficiently and reassembled at the destination.

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5. A mobile network operator plans to support thousands of smart traffic lights, surveillance cameras, and IoT sensors throughout Kathmandu Valley. Which mobile network generation is most suitable for this project?

A. 2G B. 3G C. 4G D. 5G ✅
Explanation: 5G is designed to support massive IoT connectivity with high speed and very low latency.

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6. A television station wants to broadcast live news without delays or interruptions. Which network characteristic should receive the highest priority?

A. Low bandwidth B. High latency C. High bandwidth ✅ D. Low frequency
Explanation: High bandwidth allows a large amount of data to be transmitted efficiently, supporting smooth live video broadcasting.

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7. A company installs a faster Internet package, but employees still complain that file downloads are slower than expected during office hours. Which concept best explains this problem?

A. Frequency B. Throughput ✅ C. Broadband D. Modulation
Explanation: Heavy network usage can reduce the actual throughput, even when the available bandwidth is high.

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8. During a disaster, emergency rescue teams require instant communication with very little delay while coordinating rescue operations. Which mobile network generation would provide the best performance?

A. 2G B. 3G C. 4G D. 5G ✅
Explanation: 5G provides very low latency, enabling faster real-time communication during emergency situations.