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Answer: Controle de enlace lógico e controle de acesso ao meio.
## Explanation In the ISO/OSI reference model, the Data Link Layer (Layer 2) is divided into two sublayers: 1. **Logical Link Control (LLC) Sublayer** - Responsible for flow control, error control, and framing 2. **Media Access Control (MAC) Sublayer** - Responsible for controlling access to the physical medium **Why other options are incorrect:** - **A**: Flow control and congestion control are functions of the Data Link Layer, but they are not the sublayers themselves - **C**: Multiplexing is a function of various layers, but not a sublayer of Data Link Layer - **D**: Physical and Network are separate layers (Layer 1 and Layer 3), not sublayers of Data Link Layer - **E**: Transport and Presentation are separate layers (Layer 4 and Layer 6), not related to Data Link Layer sublayers The correct answer is **B** because it accurately identifies the two standard sublayers of the Data Link Layer in the OSI model: Logical Link Control (LLC) and Media Access Control (MAC).
Author: Danyel Barboza
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No modelo de referência ISO/OSI, quais são as subcamadas da camada de enlace?
A
Controle de fluxo e controle de congestionamento.
B
Controle de enlace lógico e controle de acesso ao meio.
C
Multiplexação e enlace.
D
Física e Rede.
E
Transporte e apresentação.