Yes, because any amount of downtime is unacceptable.
B.
Yes, because his downtime is more than 0.01 percent.
C.
No, because it is normal for an app to be down 1 percent of the time.
D.
No, because the downtimes are usually at night, so users won’t be affected.
B. The blind carbon copy (bcc)
C. The emoticons
D. The domain