Answer:
The easiest method to clear a DNS cache is to use either the command line, PowerShell or Windows Server's DNS Manager
Explanation:
You can use either the ipconfig /flushdns (command line), Clear-DnsClientCache (PowerShell) or DNS->(name)->Clear Cache (from the DNS Manager)
source:
https://activedirectorypro.com/clear-windows-dns-cache/
https://www.technipages.com/flush-and-reset-the-dns-resolver-cache-using-ipconfig
Answer:
D. Low-level components are combined into clusters that perform a specific software sub-function
Explanation:
Normally, regression testing are done on a manual basis by simply re-executing a subset of the entire available test cases or it can be done automatically by utilizing playback tools or automated capture. Hence, from the options, a combination of low-level components into clusters that perform a specific sub-function does not align with how regression testing are done either manually or automatically.
Answer:
Memory-mapped I/O and port-mapped I/O are two complementary methods of performing input/output between the central processing unit and peripheral devices in a computer. An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers, which execute their own instructions.
#1 is A and #2 is B, but I don't know about #3 and #4.
