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Which of the following is NOT a disadvantage of a Local Area Network (LAN)?
Limited geographical coverage
High security risks from external networks
Cost of setup and maintenance
Dependency on a central server
High security risks from external networks
A Local Area Network (LAN) is a private network restricted to a small geographic area, such as a home, office, or school. Because LANs are typically isolated from the public internet (or protected by firewalls), they inherently possess fewer security risks from external networks compared to Wide Area Networks (WANs).
A Local Area Network (LAN) is a private network restricted to a small geographic area, such as a home, office, or school. Because LANs are typically isolated from the public internet (or protected by firewalls), they inherently possess fewer security risks from external networks compared to Wide Area Networks (WANs).
The development of LAN technologies like Ethernet was standardized by the IEEE 802.3 committee, similar to how the Indian Constitution provides the framework for national administration through specific articles.
LANs use high-speed communication media like twisted pair cables or Wi-Fi to connect devices.
LAN security is generally easier to manage because the network infrastructure is physically controlled by the organization.
LANs offer high data transfer rates compared to WANs and Metropolitan Area Networks (MANs).
High security risk from external networks is a primary disadvantage of WANs, not LANs.
Limited coverage is a disadvantage as LANs cannot span cities or countries.
Setup and maintenance costs include cabling, hardware like switches and routers, and specialized personnel.
If a central server or switch fails in a star-topology LAN, the entire network segment may become non-functional.
B is correct тАФ LANs are physically isolated networks and therefore face significantly lower security risks from external sources compared to globally connected networks.
In competitive exams, always distinguish between LAN (small scale), MAN (city scale), and WAN (global scale); LANs typically use private IP addressing, which adds a layer of inherent protection against external hacking.