<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:  Describe the function of a network gateway in IT networking. Context: A network gateway acts as an entry and exit point for data traffic between different networks. Answer: [/INST]It acts as an entry and exit point for data traffic between different networks.</s>