<span>Not a valid IPv6 address
A valid IPv6 address consist of 8 groups of 4 hexadecimal numbers separated by colons ":". But that can make for a rather long address of 39 characters. So you're allowed to abbreviate an IPv6 address by getting rid of superfluous zeros. The superfluous zeros are leading zeros in each group of 4 digits, but you have to leave at least one digit in each group. The final elimination of 1 or more groups of all zeros is to use a double colon "::" to replace one or more groups of all zeros. But you can only do that once. Otherwise, it results in an ambiguous IP address. For the example of 2001:1d5::30a::1, there are two such omissions, meaning that the address can be any of
2001:1d5:0:30a:0:0:0:1
2001:1d5:0:0:30a:0:0:1
2001:1d5:0:0:0:30a:0:1
And since you can't determine which it is, it's not a valid IP address.</span>
Answer:
oh I can't it looks so confusing
Answer:
c. processor affinity
Explanation:
Processor affinity is also called cache affinity and even sometimes regarded as processor pinning. It is a concept that allows a particular thread/process/program to run on and only on a specified core (processor) or set of cores. Even if the process is preempted, it will have to wait until it is restarted or continued by the core that started it in the first place. No other core(s) aside the specified one(s) will take on the process.
Processor/Cache affinity connects and disconnects a certain process from a CPU in such a way that only the specified CPU, rather than another CPU, will always take on that process.
An advantage of this is that there is efficient optimization of cache. Also, if many processes are using or sharing the same data, it is just logical to attach all of those to the same processor.
<em>Hope this helps!</em>
