Which best described a flat file database?

stream I$-$O

record I$-$O

quantum I$-$O

interpreted

compiled

relational

Question $15(1$ point$)$

Listen

Which of these would tell me the length of the longest line in file foo?

wc $-$L foo

cut $-$f foo $|$ wc

cmp foo $|$ wc

diff $-$I foo

sort $-$nl foo $|$ head $-1$