ITPEC IP April 2021 Question 33
Mr. A specifies the destinations for an e-mail as below and sends it. Mr. Y receives this e-mail, and sends a reply to all the recipients and the sender listed in the received e-mail. Among Mr. A, Mr. X, and Mr. Z, which of the following is the list that includes all and only the destinations of the e-mail that Mr. Y sends?
[Destinations specified for Mr. A’s e-mail]
To: X
CC: Y
BCC: Z
Explanation
A and X — Reply All goes to the sender and the visible To and CC addresses; the BCC recipient Z is hidden from Y.
The copy Y receives shows From: A, To: X, CC: Y. BCC addresses are not written into the header the recipients get, so Y cannot even tell that Z received the mail. Reply All sends to the original sender A and to every listed recipient except Y itself, which leaves X.
Answer (b)
Why not others:
- •(a) — A alone is a plain Reply; Reply All also includes X from the To field
- •(c) — Z was in BCC, so the address is absent from Y's copy and Reply All cannot add it
- •(d) — leaves out the sender A, and includes the hidden Z
Key rule: A BCC recipient is invisible to everyone else and never gets a Reply All; use BCC when recipients must not see each other's addresses.
Networks · AI-written, may contain errors
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