Knowledge Checks

Link-layer services.

Which of the following services may be implemented in a link-layer protocol? Select one or more statements.

Multiplexing down from / multiplexing up to a network-layer protocol.

TLS security (including authentication) between directly connected nodes.

Coordinated access to a shared physical medium.

Bit-level error detection and correction.

End-end path determination through multiple IP routers.

Reliable data transfer between directly connected nodes.

Flow control between directly connected nodes.

Lookup and forwarding on the basis of an IP destination address.

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