Media converter is nowhere in the A+ objectives or the CompTIA book (media converter is listed on the Net+ objectives). In the book, it says "An access point can establish a wireless-only network, but it can also work as a bridge to forward communications between the wireless stations and a wired network."
The correct answer is A. Hub.
A hub is a simple network device that operates at the physical layer of the OSI model. It broadcasts data packets to all connected devices, regardless of the intended recipient. This behavior is similar to a bridge, which also forwards data packets to all connected segments. However, a hub lacks the intelligence to filter traffic based on MAC addresses, making it less efficient than a switch.
Here's why the other options are incorrect:
B. Wireless access point: This device provides wireless connectivity to devices but operates at the data link layer of the OSI model.
C. Transceiver: This device converts electrical signals into optical signals and vice versa. It's used in fiber optic networks.
D. Media converter: This device converts signals between different media types (e.g., copper to fiber).
While hubs are not commonly used in modern networks due to their limited capabilities, understanding their basic function is important for network troubleshooting and configuration.
GG
While a wireless access point (AP) can be considered a bridge in a sense, it operates at a higher layer of the OSI model than a traditional bridge.
Traditional Bridge:
Operates at the Data Link layer (Layer 2) of the OSI model.
Forwards data frames based on MAC addresses.
Connects two or more network segments.
Wireless Access Point:
Operates at both the Physical (Layer 1) and Data Link (Layer 2) layers of the OSI model.
Handles both wired and wireless connections.
Forwards data frames between wired and wireless devices.
While an AP can be seen as bridging the gap between wired and wireless networks, it's not a direct replacement for a traditional bridge. It has additional functionalities like managing wireless connections, handling authentication, and encryption.
Therefore, while there's some overlap in their functions, a wireless access point is not strictly a bridge device.
GG
It's absolutely B, as a matter of fact, I use my Wifi router in AP mode and here is what it says:
"Wireless AP: Bridge mode, all interfaces are bridged together and connect to the internet via a router"
Wireless Access Point is also called a bridge as it's simply bridging or extending the wired connection into a wireless connection.
https://www.professormesser.com/free-a-plus-training/220-1101/220-1101-video/network-devices-220-1101/
Point-to-point wireless Ethernet bridges are a convenient way of connecting two networks quickly and easily using a wireless connection. They provide a secure, reliable link to share data, audio, video, or other internet traffic between two locations without needing any cables
D. Media converter operates as a bridge function. A media converter is a network device that can bridge or convert signals between different types of network media, such as converting from fiber optic to copper Ethernet or vice versa. It plays a bridging role in connecting two different network segments that use different media types to communicate with each other.
A media converter is a device used to convert and bridge different types of network media, such as converting between fiber-optic and copper Ethernet cables. It enables devices with different network interfaces to communicate with each other. Media converters are often used to extend the reach and compatibility of network connections.
A media converter is a network device that operates as a bridge function.
https://www.alliedtelesis.com/us/en/blog/media-converters-and-network-extenders
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