Question
Download Solution PDFWhich of the following devices operates at the Data Link Layer of the OSI model?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 1) Switch.
Concept:
- Switch: Operates at the Data Link Layer (Layer 2) by using MAC addresses to forward data packets within a local network.
- Modem: Operates at the Physical Layer (Layer 1) by converting digital signals to analog signals for transmission over a medium like a phone line, and vice versa.
- Firewall: Typically operates at the Network Layer (Layer 3) or higher, examining IP addresses and port numbers to control network traffic. Some advanced firewalls can operate at the Application Layer (Layer 7).
- Router: Operates at the Network Layer (Layer 3) by using IP addresses to route data packets between different networks.
Last updated on Jun 7, 2025
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