27. What does a router do?
Answer: A
A router manages traffic by maintaining a table of known devices on the network.
A router is primarily responsible for directing data traffic within a network by keeping track of various devices and their IP addresses. This function allows it to efficiently route data packets to their intended destinations.
A) Manages traffic by maintaining a table of known devices on the network
This option accurately describes the primary function of a router. By maintaining a routing table, the router can determine the best path for data packets to travel across multiple networks, ensuring efficient communication between devices.
B) Provides services, such as website hosting and routing, for various devices
While routers do facilitate routing, this option is misleading as it implies that routers provide website hosting services. Typically, website hosting is the responsibility of dedicated servers, not routers.
C) Converts incoming analog data into digital and outgoing digital data into analog
This option is incorrect as it describes the function of a modem, not a router. A router does not convert data formats; it directs data packets based on their destination addresses.
D) Extends the cable range and allows connections to be made by increasing the signal strength
This option misrepresents the function of a router. While some devices can boost signal strength, a router’s primary role is to route data, not to extend cable range or amplify signals.
Conclusion
Option A is definitively correct as it encapsulates the essential role of a router in managing network traffic through its routing table. The other options either misrepresent the router's function or attribute responsibilities that belong to other networking devices, highlighting the importance of understanding the specific roles of different components in a network.