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Which layer of the OSI model does the router operate on?
- a)Application Layer
- b)Presentation Layer
- c)Physical Layer
- d)Data Link Layer
- e)Network Layer
Correct answer is option 'E'. Can you explain this answer?
Most Upvoted Answer
Which layer of the OSI model does the router operate on?a)Application ...
The correct answer is option 'E': Network Layer.
Explanation:
Routers operate at the Network Layer of the OSI (Open Systems Interconnection) model. The OSI model is a conceptual framework that standardizes the functions of a communication system into seven different layers. Each layer has a specific set of functions and protocols that it performs.
The Network Layer is responsible for the logical addressing and routing of data packets across different networks. It ensures that data is properly routed from the source to the destination by choosing the most efficient path based on the network topology and conditions.
Here's a detailed explanation of each layer of the OSI model and the role of a router at the Network Layer:
1. Application Layer:
- The highest layer of the OSI model.
- Provides interfaces and protocols for user applications to communicate with the network.
- Examples include HTTP, FTP, SMTP.
2. Presentation Layer:
- Responsible for data formatting, encryption, and compression.
- Transforms data from the Application Layer into a format suitable for transmission.
- Examples include JPEG, MPEG, SSL.
3. Session Layer:
- Manages the establishment, maintenance, and termination of sessions between applications.
- Handles synchronization and checkpointing of communication.
- Examples include NetBIOS, RPC.
4. Transport Layer:
- Handles end-to-end communication between hosts.
- Provides reliable, error-free data delivery through flow control and error recovery mechanisms.
- Examples include TCP, UDP.
5. Network Layer:
- Responsible for logical addressing and routing of data packets.
- Determines the best path for data transmission across networks.
- Examples include IP, ICMP.
6. Data Link Layer:
- Provides error-free transmission of data frames over the physical layer.
- Handles data framing, error detection, and flow control.
- Examples include Ethernet, Wi-Fi.
7. Physical Layer:
- The lowest layer of the OSI model.
- Deals with the physical transmission of data over the network medium.
- Examples include cables, connectors, hubs.
Routers operate at the Network Layer, where they examine the network layer addresses (IP addresses) in data packets and make decisions on how to forward them to the correct destinations. They use routing tables and algorithms to determine the best path for data transmission across networks.
In summary, routers operate at the Network Layer of the OSI model, where they perform logical addressing and routing functions to ensure efficient data transmission across different networks.
Explanation:
Routers operate at the Network Layer of the OSI (Open Systems Interconnection) model. The OSI model is a conceptual framework that standardizes the functions of a communication system into seven different layers. Each layer has a specific set of functions and protocols that it performs.
The Network Layer is responsible for the logical addressing and routing of data packets across different networks. It ensures that data is properly routed from the source to the destination by choosing the most efficient path based on the network topology and conditions.
Here's a detailed explanation of each layer of the OSI model and the role of a router at the Network Layer:
1. Application Layer:
- The highest layer of the OSI model.
- Provides interfaces and protocols for user applications to communicate with the network.
- Examples include HTTP, FTP, SMTP.
2. Presentation Layer:
- Responsible for data formatting, encryption, and compression.
- Transforms data from the Application Layer into a format suitable for transmission.
- Examples include JPEG, MPEG, SSL.
3. Session Layer:
- Manages the establishment, maintenance, and termination of sessions between applications.
- Handles synchronization and checkpointing of communication.
- Examples include NetBIOS, RPC.
4. Transport Layer:
- Handles end-to-end communication between hosts.
- Provides reliable, error-free data delivery through flow control and error recovery mechanisms.
- Examples include TCP, UDP.
5. Network Layer:
- Responsible for logical addressing and routing of data packets.
- Determines the best path for data transmission across networks.
- Examples include IP, ICMP.
6. Data Link Layer:
- Provides error-free transmission of data frames over the physical layer.
- Handles data framing, error detection, and flow control.
- Examples include Ethernet, Wi-Fi.
7. Physical Layer:
- The lowest layer of the OSI model.
- Deals with the physical transmission of data over the network medium.
- Examples include cables, connectors, hubs.
Routers operate at the Network Layer, where they examine the network layer addresses (IP addresses) in data packets and make decisions on how to forward them to the correct destinations. They use routing tables and algorithms to determine the best path for data transmission across networks.
In summary, routers operate at the Network Layer of the OSI model, where they perform logical addressing and routing functions to ensure efficient data transmission across different networks.
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Which layer of the OSI model does the router operate on?a)Application ...
The network layer, or Layer 3, is most frequently referred to as the layer where routing occurs. The primary responsibility of a router is to transfer packets between networks.
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