Select the correct answer. What vulnerability does a server have if unnecessary services are not blocked?
A.
Malicious users can penetrate the server through open ports.
B.
Virus attacks can occur due to unnecessary services.
C.
Multiple bugs can occur in unnecessary services.
D.
There will be difficulty in creating server backups.
E.
There will be difficulty in restoring data.

Fast answer i need for apex ! smartphones should be banned from the classroom in public schools so that students cannot cheat on test so easily? which is an example of a counter argument to the thesis above? a.the classroom is a place for learning not for making phone calls b. smartphones are useful learning tools in the modern classroom c.banning smartphones will not students pay attention to teachers any better d. banning smartphones would decreased incidents of theft