Which protocol is used to send an outgoing email from a client to a mail server?
- A.SMTP
- B.POP3
- C.IMAP
- D.FTP
Correct answer
Explanation
The correct answer is A, SMTP. SMTP stands for Simple Mail Transfer Protocol and is the rule set that pushes a letter out of your mail program to the server and onward from one server to the next until it reaches the receiver's mailbox. Its usual port is 25.
Option B, POP3, the Post Office Protocol version 3, works in the other direction: it downloads arriving mail to one device and normally deletes it from the server. Option C, IMAP, the Internet Message Access Protocol, also handles incoming mail, but it keeps the letters on the server so the same mailbox appears alike on every device. Option D, FTP, is the File Transfer Protocol and moves files between a computer and a server without any connection to mail. Sending is SMTP; receiving is POP3 or IMAP.
Read the full article: Internet and Email: Protocols, Ports and Terms
Practice Questions
View allDeleted emails are stored in
- A.Drafts
- B.Trash
- C.Inbox
- D.Sent mail
Show answer
When a letter is deleted from a mailbox it is not wiped out at once. It is moved to a folder called Trash, or Bin in some services, and kept there for a fixed number of days so that a letter deleted by mistake can be restored.
Read the full explanation →In Gmail, the email address of the recipients can be entered in __________ field.
- A.Subject
- B.To
- C.Message
- D.From
Show answer
The To field of a mail window is meant for the addresses of the people the letter is written to.
Read the full explanation →ARPANET, the forerunner of the internet, carried its first message in which year?
- A.1959
- B.1969
- C.1979
- D.1989
Show answer
ARPANET was funded by the Advanced Research Projects Agency of the United States Department of Defense, and in 1969 it linked computers at four American universities and passed its first message between them.
Read the full explanation →Who is credited with inventing the World Wide Web?
- A.Vinton Cerf
- B.Charles Babbage
- C.Tim Berners-Lee
- D.Ray Tomlinson
Show answer
Working at CERN in Switzerland, he proposed a system of linked documents in 1989, wrote the first browser and server, and put the first website online in 1991.
Read the full explanation →Which symbol was chosen by Ray Tomlinson to separate the user name from the host name in an email address?
- A.#
- B.&
- C.@
- D.*
Show answer
Ray Tomlinson sent the first message between two computers on ARPANET in 1971 and needed a character that would never appear in a person's name.
Read the full explanation →