Network+ N10-008 Ports UPDATED ACTUAL Questions and
CORRECT Answers
1. Telnet tcp/23
Remote console login to network devices (in the clear)
2. SSH tcp/22
Encrypted console login
3. DNS udp/53, tcp/53
Convert domain names to IP addresses
4. SMTP (unencrypted) tcp/25
Transfer email between mail servers
5. POP3 (unencrypted) tcp/110
Receive mail into a mail client
6. IMAP4 tcp/143
A newer mail client protocol
7. SFTP tcp/22 using SSH
Encrypted file transfers using SSH
8. FTP tcp/20, tcp/21
Sends and receives files between systems
9. TFTP udp/69
(Trivial File Transfer Protocol)
A very simple file transfer application
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CORRECT Answers
1. Telnet tcp/23
Remote console login to network devices (in the clear)
2. SSH tcp/22
Encrypted console login
3. DNS udp/53, tcp/53
Convert domain names to IP addresses
4. SMTP (unencrypted) tcp/25
Transfer email between mail servers
5. POP3 (unencrypted) tcp/110
Receive mail into a mail client
6. IMAP4 tcp/143
A newer mail client protocol
7. SFTP tcp/22 using SSH
Encrypted file transfers using SSH
8. FTP tcp/20, tcp/21
Sends and receives files between systems
9. TFTP udp/69
(Trivial File Transfer Protocol)
A very simple file transfer application
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