220-801 · Question #239
Which of the following appliances can function as a connection point between network devices as well as provide access to the Internet?
The correct answer is B. Router. A router connects multiple network devices into a LAN while simultaneously routing traffic between the local network and the Internet using NAT and a default gateway.
Question
Which of the following appliances can function as a connection point between network devices as well as provide access to the Internet?
Options
- AHub
- BRouter
- CBridge
- DSwitch
How the community answered
(38 responses)- A5% (2)
- B89% (34)
- C3% (1)
- D3% (1)
Why each option
A router connects multiple network devices into a LAN while simultaneously routing traffic between the local network and the Internet using NAT and a default gateway.
A hub simply repeats signals to all connected ports at Layer 1 and has no routing capability to direct traffic to or from the Internet.
A router operates at OSI Layer 3 and uses IP routing to forward packets between different networks. Home and small-business routers combine routing, NAT, DHCP, and often wireless access point functionality, making them the central device that provides both local connectivity and Internet access.
A bridge connects two network segments at Layer 2 using MAC addresses but cannot route packets between different IP networks or provide Internet access.
A switch connects devices within a LAN at Layer 2 and forwards frames based on MAC addresses, but it cannot perform IP routing or serve as a gateway to the Internet.
Concept tested: Router function as gateway and connection point
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