When writing a formula that requires multiplication, you use ________

Write a function numLines that takes as a parameter an open input stream referencing a text file and returns as the function value the number of lines of text in the file. You may assume that the last character in the file is the newline character.

What will be an ideal response?

____ is a block cipher mode in which each possible block of plaintext has a defined corresponding ciphertext value.

A. CBC B. CFB C. OFB D. ECB