Just as an example I have done this with Dell and Lenovo computers ( Mainly laptops ) and can easily take them apart to do certain things and said laptops are still covered under warranty ie swapping the laptops keyboard / optical drive / swapping out ram / swapping a hard drive over etc
So some things don't void the warranty if you have to do them as the support person vs the manufacturer sending an engineer out to repair said item
I can see where the poster is coming from with regards to wanting the support person to log a support ticket with the manufacturer as you need to try and keep said devices working without voiding any warranties in the process.
When I did my MCSE, one of the questions had us identifying i/p address, eg 192.168.1.1 is class C and private. There was a class E address as one of the questions. I've always included this in my interview questions and not one person has got it, even those who have an MCSE with wet ink. Maybe they don't ask that question any longer. OK, so it's a meany, but still valid IMO.
Usually I'm much kinder; tell me what to look for when a printer isn't working. Most get the physical aspects (paper, electricity, ink/toner, etc), most get connectivity (network or other cable), most check if the correct driver is installed, many forget to check that the spooler is running and a lot fail to ask the obvious question - can the program you are trying to print from actually handle printing?
We should be asking more questions on alternate OS's ;) .
I found a DEC Aplha Server in a customers dungeon today... would love to give that a whirl on an alpha aware Linux :)
Agree with different O/Ses but with it being questions to ask for an interview, I would say it depends on what the job entails as they should be asking questions related to what said person would be expected to do in said job
If it is for an I.T Technician then trying to work out how many hosts are in a particular subnet wouldn't be done straight away as that would normally fall on the network manager or Senior I.T Tech possibly
Presumably the I.T Tech would do more fire fighting ie pc not powering on, password reset, printing issues, pc repairs and re-builds, some network connectivity diagnostics and if possible resolving them etc
Been for a few interviews myself and they varied from place to place depending on what said place was after and what the network manager was like
Sadly I quite enjoy the subnet stuff.
But I don't bother working it out by hand ( or in my head ) ... I have a subnet calc on the phone ;)
It's quite simple, so long as you can understand binary 8 bit numbers..
It just take longer ( for non standard masks ) to think about it than to put it in a calculator..
No competent vendor (Dell, HP & Lenovo, misc others) will invalidate a warranty if you adding components, return the device to it's correct state or perform any number of routine maintenance and diagnostic procedures.
(I'm assuming the tech under question is not a pimply 16yr old you wouldn't trust with a plastic screwdriver on a 486 doorstep).