WAN chapter 5 questions and answers

Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented? PAT using an external interface dynamic NAT with a pool of two public IP addresses static NAT with a NAT pool static NAT with one entry PAT using an external interface What is a disadvantage of NAT? The costs of readdressing hosts can be significant for a publicly addressed network.​ The internal hosts have to use a single public IPv4 address for external communication. The router does not need to alter the checksum of the IPv4 packets.​ There is no end-to-end addressing. There is no end-to-end addressing. 00:01 01:13 How does NAT complicate the use of IPsec? Troubleshooting is made impossible. End-to-end IPv4 traceability is lost. Header values are modified which causes issues with integrity checks. Network performance is degraded even more than with just NAT. Header values are modified which causes issues with integrity checks. When NAT is employed in a small office, which address type is typically used for hosts on the local LAN? both private and public IP addresses private IP addresses Internet-routable addresses global public IP addresses private IP addresses Which prefix is used for IPv6 ULAs? FC00::/7 FF02::1:FF00:0/104 2001:DB8:1:2::/64 2001:7F8::/29 FC00::/7 What is the purpose of port forwarding? Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN. Port forwarding allows users to reach servers on the Internet that are not using standard port numbers. Port forwarding allows for translating inside local IP addresses to outside local addresses. Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN. Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN. Which statement accurately describes dynamic NAT? It provides an automated mapping of inside local to inside global IP addresses. It always maps a private IP address to a public IP address. It dynamically provides IP addressing to internal hosts. It provides a mapping of internal host names to IP addresses. It provides an automated mapping of inside local to inside global IP addresses. 8 Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration? Interface Fa0/0 should be identified as an outside NAT interface. NAT-POOL2 is not bound to ACL 1. Access-list 1 is misconfigured. The NAT pool is incorrect. NAT-POOL2 is not bound to ACL 1. When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool? The request to the server for the seventh user fails. No users can access the server. All users can access the server. The first user gets disconnected when the seventh user makes the request. The request to the server for the seventh user fails. Which type of NAT maps a single inside local address to a single inside global address? dynamic port address translation overloading static static What is a characteristic of unique local addresses? They are defined in RFC 3927. Their implementation depends on ISPs providing the service. They allow sites to be combined without creating any address conflicts. They are designed to improve the security of IPv6 networks. They allow sites to be combined without creating any address conflicts. Fill in the blank. Do not use abbreviations. NAT overload is also known as _________ Port Address Translation