Answer:
a. PAT
Explanation:
20.You have one IP address provided from your ISP with a /30 mask. However, you have 300 users that need toaccess the Internet. What technology will you use to implement a solution?a.PATb.VPNc.DNSd.VLANs
Answer:
Link-local address
Explanation:
IP addresses that have "FE80" as the hexadecimal representation of their first 10 bits are IPV6 reserved addresses for link-local unicast addressing. These addresses are automatically configured (though may be manually configured too) on any interface and should not be routed. They are used for addressing on a single link with the main aim, among others, of automatic configuration and routing protocol advertisement. Devices attached to this link can be accessed or reached using the link-local addresses as they don't need a global address to communicate.
However, routers will not forward datagram or packets using link-local addresses. In other words, routers are not allowed to connect to the internet using the unicast link-local addresses.
<span>The manual assignment of an IP address to a
system is called static addressing. Since the assignment of IP has been entered
manually using ARP utility, the network administrators probably forgot to
remove the manually configured nodes with IP addresses. </span>
