[rudra]

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1) what are the Linux flavours you use ? centos, ubuntu. please mention version

i am currently using a old distro Ubuntu 14.04 LTS x64 bits.

2) could you afford to spare / reserve say 3-5 GB space on your HDD for system recovery or reinstall on your own any time you like ?

i really wish to do this but i am not a developer or IT expert. i am just a learner.
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4) do you use passwords or key file to login to your vps through ssh ?

No
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Thanks everyone for your replies.

@sagher

thanks. Now regrding your responses,
a) why are you using 14.04 ubuntu lts still ? is it really necessary for you ? like a requirement for something you use ?
b) what question 2 want to find out is if you are using your storage near to its capacity ? In other words, how much free space you have ?
c) this is to know more about your response to question 4.

so you dont use ssh to access your system ? Then how do you use it ? I mean you gotta use ssh to login at least once to setup vnc ?

Thanks