Cross pairs, Opens/shorts and Split pairs tests.
daily
verify the cables that are NOT tocuhing the metal door. Sometimes the cables are old and they crack, just put black tape (electric tape) and that should fix the problem.
Use vulnerability scanning
Check that all cables, power and data cables are pluged in and working, verify that mains power is switched on to the monitor.
Ping and/or traceroute
Use vulnerability scanning
No, a nurse should not verify a death that should be done by a doctor.
A network multimeter will test cables, ports and network adapters and a loopback plug can work on ports provided by a computer, wall jack, patch panel, switch, router, or a other device that is turned on. Pg 505 A+ Guide to Hardware, 6th edition.
there are several ways: using network packet analyst. using metasploit using wireshark using scanners ect
If you have more than one person who can verify your work ethics, moral character and capabilities, it will certainly help your cause. But don't attach more than 3 or 4.
You should verify that your router was purchased at a Best Buy. Before you call, make sure to have all the information about the router and your network connection available, and they should be able to help you.
There is no specific ways to verify a PAN card by a common man but it is possible by the income tax officials by the computerised network as they update everything that come on their way.