The correct Answer is A-3, B-4, C-1, D-2
Explanation
This question assesses knowledge of various communication and information technologies and their primary applications. Understanding the core function of each technology is crucial for accurate matching.
Statement-wise Analysis
-
A. GPS (Global Positioning System):
- Correct Match: 3. Precise navigation and vehicle tracking.
- Justification: GPS is a satellite-based navigation system that provides location, velocity, and time synchronization. Its primary applications include precise navigation for vehicles, aircraft, and ships, as well as tracking assets and personnel.
-
B. GIS (Geographic Information System):
- Correct Match: 4. Geospatial analysis for planning.
- Justification: GIS is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. It is extensively used for spatial analysis, mapping, and planning in various fields such as urban development, environmental management, and disaster response.
-
C. VSAT (Very Small Aperture Terminal):
- Correct Match: 1. Remote communication in inaccessible regions.
- Justification: VSAT is a satellite communication system that uses small dish antennas to provide broadband internet access, voice, and data services, particularly in remote or rural areas where terrestrial communication infrastructure is limited or non-existent.
-
D. Fibre Optics:
- Correct Match: 2. High-bandwidth data transmission.
- Justification: Fibre optics technology uses thin strands of glass or plastic to transmit data as light signals. It offers significantly higher bandwidth and faster data transmission speeds over longer distances compared to traditional copper cables, making it ideal for high-speed internet and telecommunications.
Key Takeaway
Each technology (GPS, GIS, VSAT, Fibre Optics) has a distinct primary application based on its fundamental operational principle.