Answer:
Explanation:
There are different advantages to buy commercial software like:
- Is a system used for other companies, we will have good referents with the feedback of them.
- Support, we should have support twenty-four hours, if a system doesn't have good support, we must not buy the software.
- We can choose software with a lower initial cost, this depends on our needs.
/etc/services on my CentOS machine goes up to 49000. Reserved ports are less than 1024.
Well known and reserved ports are two different things. Well known ports only need a registration with IANA. Reserved ports, on *nixes, requires root for a deamon to bind to the port.
Explanation:
1) the quality of purchased good may be low
2) there might me fraud and cheaters
3) it might be risky
4) we may not get our orders on time
Answer:
It defines five ICMPv6 packet types for router solicitation,router advertisement,neighbor solicitation,neighbor advertisement,and network redirects.
Explanation:
