This totally depends on what they need and what they are willing to spend. If they just need access to google docs/ sheets etc for example (so just the web with a web browser), either Linux / Un*x or Windows will do and linux is the free choice. If they want to be part of the microsoft ecosystem or use some windows specific software they will need to use Windows or an emulator in Linux.
I would not recommend MSDOS in this day and age.
Answer:
JavaScript frameworks and Ajax
Explanation:
Answer:
The answer is reflective DNS attack
Explanation:
Reflective DNS Attack is used in many distributed DDoS attacks to knock down an internet pipe. The attack is divided in two stages: first the attacker sends lots of requests to one or more legitimate DNS servers while using spoofed source IP of the target person, and then, in the second stage, the DNS server receiving the semi-legitimate requests replies to the spoofed IP, thereby unknowingly lauching an attack on the target computer with responses to requests never sent by the victim.
The answer is..
C. During one-on-one conversations