What is a bridge between two networks?
A. Gateway
B. MAC Address
C. Protocol
D. IP Address
Answer (2)
A bridge connects two or more networks, allowing them to communicate while remaining distinct. It filters traffic based on MAC addresses and operates at the Data Link Layer of the OSI model. For the multiple-choice question, the correct answer is A. Gateway.
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In the context of networking, a 'bridge between two networks' refers to a device or a setup that allows two separate networks to communicate with each other. A bridge operates at the data link layer (Layer 2) of the OSI model and is typically used to connect two segments of a network at the address level, such as connecting different Ethernet segments.
Looking at the multiple-choice options provided:
(A) Gateway : This is the correct answer. A gateway essentially acts as a bridge between two different networks, allowing data to flow between them. It is used to connect different protocols and architectures, so when data needs to move from one network to another, it passes through a gateway.
(B) MAC Address : This is a unique identifier assigned to a network interface for communication at the data link layer. It is not a bridge between networks.
(C) Protocol : Protocols are rules or standards that define how data is transmitted and received over a network. While protocols are essential for communication, they don't serve as bridges themselves.
(D) IP Address : An IP Address is an identifier assigned to devices on a network, allowing them to communicate. It does not serve as a bridge between networks.
Therefore, the correct choice is (A) Gateway . Gateways are crucial in networks, especially the internet, to facilitate communication between different systems and networks, often translating data between different formats or network protocols. They ensure that devices on different networks or subnets can access and exchange information with each other.
