A PowerPoint presentation is saved with a ________ file extension

In a moving average, the number range that is averaged is constantly changing, dropping off the first number and adding on the most ________ number

Fill in the blank(s) with correct word

A user states that email is not being received. Which of the following protocols should the technician check for incoming mail?

A. SMTP B. POP3 C. NNTP D. HTTP