<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 role of firewalls in IT networking. Context: Firewalls are a security measure that monitors and controls incoming and outgoing network traffic. Answer: [/INST]It is a security measure that monitors and controls incoming and outgoing network traffic.</s>