Lesson 6 Configuring and Monitoring Ports and Protocols

Question 1

TelNet(Telecommunications Network)

Uses which port number ?

Answer 1

tcp/23

Question 2

With Port Number tcp/23 (TelNet) you can log into devices remotely but what is an major issue with tcp/23

Answer 2

An Major issue with tcp/23 TelNet is that it’s sent in the clear communication (Not Encrypted) making it not the best choice for production systems.

Question 3

What port number has the same look and feel as tcp/23 but with the added benefit of encryption?

Answer 3

Port # tcp/22 (SSH - Secure Shell) works the same as port # 23 but with Encryption added

Question 4

The port # for DNS ( Domain Name System) would be?

Answer 4

Tcp/udp 53 would be the port # for DNS

Question 5

Port # 25 is connected to what protocol?

Answer 5

SMTP (Simple Mail Transfer Protocol) which is used for both server to server email and device to mail server transfer.

Question 6

True or False SFTP (Secure File Transfer Protocol) use the same port # as SSH (Secure Shell)

Answer 6

True. SFTP both use port # tcp/22

Question 7

Which Two Port#’s are used by FTP (File Transfer Protocol) and what are the difference between them?

Answer 7

FTP use Port# tcp/20 and Port #21

Question 8

HTTP Port # would be?

Answer 8

Tcp/80 (Web Server Communication)

Question 9

HTTPS Port # is ?

Answer 9

Tcp/444 (Web Server Communication with Encryption)