please answer all 15 questions

Firewall 1. What is the difference between Node and Host? The firewalls and routers can be considered as The link is a connection between two 2. List four network advantages 3. List five network vulnerabilities. Choose one of them, and briefly explain it. 4. A port scanner is a software program that is to examine one or more IP addresses and record which are open and which known vulnerabilities are 5. In a segmented network, many hosts belong to protected sub-networks that are nox directly to the outside. 6. A firewall is to o prevent outside users from asssssing network o prevent users from transmitting sensitive information or accessing unsecured resources A firewall works by each inbound or outbound packet and determining whether it should be Or to pass through 7. A firewall security policy is a set of rules that List two examples of firewall security policy rules. List the firewall default security policy: A packet filtering gateway is to regulate network boundary access by: Examining Examining English (US) Focus The application proxy gateway can filter out commands 11. A circuit-level gateway can enable 12. A guard firewall can examine the 13. Usually, a personal firewall is implemented as a program Personal firewalls can be used to protect home computers from 14. List three network encryption techniques: 15. A clever attacker can use the IP addresses of hosts in a network to infer the network's layout and A firewall can implement to hide the structure of an interal network from outside How NAT works The IP addresses of packets from internal hosts are placed with The IP address of incoming packets is translated back to English O Focus