What network technician trait is used in the following situation: The network technician asks the faculty member what hardware upgrades she may need for her labs in the upcoming year?

Which of the following is not a flag that can be used in the printf format-control string?

a) 0 b) + c) / d) #

Which of the following can be done to harden an operating system?

A) Uninstall unneeded applications or utilities B) Close unused ports C) Apply the latest security patches and fixes D) All of the above