<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  Provide an explanation of firewall protection. Context: Firewall protection serves as a barrier between trusted and untrusted networks. Answer: [/INST]It acts as a barrier between a trusted network and an untrusted network.</s>