220-1101 · Question #321
Which of the following networking devices will MOST likely need to be installed in between the ISP and the LAN in a SOHO environment?
The correct answer is D. Router. In a SOHO environment, a router is essential to connect the internal LAN to the ISP's network, performing functions like NAT and IP address management.
Question
Which of the following networking devices will MOST likely need to be installed in between the ISP and the LAN in a SOHO environment?
Options
- ASwitch
- BFirewall
- CCable modem
- DRouter
- EAccess point
How the community answered
(42 responses)- A2% (1)
- B5% (2)
- D90% (38)
- E2% (1)
Why each option
In a SOHO environment, a router is essential to connect the internal LAN to the ISP's network, performing functions like NAT and IP address management.
A switch connects multiple devices within a local area network, but it does not directly connect the LAN to an ISP's network.
While a firewall is crucial for security, it is often a feature integrated into a SOHO router or can be a standalone device, but the router itself is the primary connection point.
A cable modem is a device that translates signals from the ISP's cable line into a format usable by a router, but it typically connects to a router, not solely between the ISP and LAN for routing purposes.
A router is the device that connects a local area network (LAN) to a wide area network (WAN), such as the internet provided by an ISP. It handles IP address translation (NAT), directs traffic between the LAN and the internet, and provides basic security features, which are all critical functions in a SOHO setup.
An access point provides wireless connectivity for devices within the LAN but does not route traffic between the LAN and the ISP.
Concept tested: Router function in SOHO networks
Source: https://www.cisco.com/c/en/us/products/routers/what-is-a-router.html
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