PORTS

Question 1

Sends and receives files between systems (tcp/20, tcp21)

Answer 1

File Transfer Protocol (FTP)

Question 2

Encrypted console access (tcp/22)

Answer 2

Secure Shell (SSH)

Question 3

Insecure console access (tcp/23)

Answer 3

Telecommunication Network (Telnet)

Question 4

Transfer email between mail servers (tcp/25)

Answer 4

Simple Mail Transfer Protocol (SMTP)

Question 5

Convert domain names to IP addresses (udp/53, tcp/53)

Answer 5

Domain Name System (DNS)

Question 6

Automate the IP address configuration process (udp/67, udp/68)

Answer 6

Dynamic Host Configuration Protocol (DHCP)

Question 7

Web server communication (tcp/80)

Answer 7

Hypertext Transfer Protocol (HTTP)

Question 8

Web server communication with encryption (tcp/443)

Answer 8

Hypertext Transfer Protocol Secure (HTTPS)

Question 9

Receive email into a email client (tcp/110)

Answer 9

Post Office Protocol version 3 (POP3)

Question 10

A newer email client protocol (tcp/143)

Answer 10

Internet Message Access Protocol v4 (IMAP4)

Question 10

Register, remove, and find Windows services by name (udp/137)

Answer 10

NetBIOS name service (NetBIOS)

Question 11

Windows connection-oriented data transfer (tcp/139)

Answer 11

NetBIOS session service (NetBIOS)

Question 12

Windows file transfers and printer sharing (tcp/445)

Answer 12

Server Message Block (SMB)

Question 13

Gather metrics and manage network devices (udp/161)

Answer 13

Simple Network Management Protocol (SNMP Query)

Question 14

Receive alerts from network devices (udp/162)

Answer 14

Simple Network Management Protocol (SNMP Trap)

Question 15

Directory services (tcp/389)

Answer 15

Lightweight Directory Access Protocol (LDAP)

Question 16

Graphical display of remote devices (tcp/3389)

Answer 16

Remote Desktop Protocol (RDP)