ITPEC IP October 2020 Question 31
Mr. A sent an e-mail to the three (3) people Mr. P, Mr. Q, and Mr. R. He entered Mr. P’s e-mail address in the To field, Mr. Q’s e-mail address in the CC field, and Mr. R’s e-mail address in the BCC field. Among the recipients of the e-mail Mr. P, Mr. Q, and Mr. R, which of the following lists contains all and only the people who can know that the e-mail with the same content is sent to all three (3) people?
Explanation
Mr. R only — as the BCC recipient he sees the To and CC addresses as well as his own copy, while Mr. P and Mr. Q cannot see him.
Every recipient's copy shows the To field (Mr. P) and the CC field (Mr. Q). The BCC field is removed before delivery, so its address is shown to no one.
- •Mr. P — sees P and Q; cannot tell that R received it
- •Mr. Q — sees P and Q; cannot tell that R received it
- •Mr. R — sees P in To and Q in CC and knows he received it himself, so he knows all three got it
Answer (d)
Why not others:
- •(a) P, Q, R — Mr. P and Mr. Q cannot see the BCC recipient, Mr. R
- •(b) P, R — Mr. P cannot see Mr. R
- •(c) Q, R — Mr. Q cannot see Mr. R either; being in CC shows no more than being in To
Key rule: To and CC addresses are shown to every recipient and BCC addresses to none, so a BCC recipient knows who else got the message but never sees the other BCC recipients.
Networks · AI-written, may contain errors
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.