at which protocol layer does the berkeley packet filter (bpf) operate? a protocol b internetwork c transport…

at which protocol layer does the berkeley packet filter (bpf) operate? a protocol b internetwork c transport d data link
Answer
Brief Explanations:
The Berkeley Packet Filter (BPF) operates at the data - link layer. It is designed to capture packets at a low - level and filter them based on certain criteria. The data - link layer is responsible for the transfer of data between adjacent network nodes in a network segment.
Answer:
D. Data Link