Answer:
The dark stories behind it? i dont know lol
Answer:
Ports 20 and 21
Explanation:
For the FTP to work, there are two parts that are required; the command and the data. These two parts are sent on the two ports 21 and 20 respectively. If the firewall is indeed blocking connections on ports 21 and 20, then your FTP will not work.
Hence, you need to open ports 20 and 21 to allow FTP to remain functional.
Cheers.
Define the problem..................
In file systems it can be called a link, symlink or alias.
The changes would be necessary so that a process waiting to acquire a mutex lock would be blocked and placed into a waiting queue is: Spinlocks.
<h3>What is spinlock?</h3>
Spinlock can be defined as the process of enabling a thread to wait while looking for lock that are available.
Spinlock is important as it enable thread to partition processor based on their needs so as to make it possible for thread waiting for spinlock to make use of one processor while other threads can as well run on other processor without hindering or interrupting one another.
Inconclusion the changes would be necessary so that a process waiting to acquire a mutex lock is: Spinlocks.
Learn more about spinlock here:brainly.com/question/13766808
