2.1 Introduction to IP/Common network ports

Question 1

Sends and receives files between systems. Uses port 20 & 201

Answer 1

File Transfer Protocol (FTP)

Question 2

Encrypted communication link. Looks and acts the same as Telnet but requires more setup. uses port 22.

Answer 2

Secure Shell (SSH).

Question 3

Login to devices remotely. Has lost favor to SSH because it sends data including passwords and data in plain text format. Uses port TCP 23.

Answer 3

Telent

Question 4

Transfer email between mail servers. Other protocols are used for clients to receive email IMAP, POP3. Uses port TCP 25.

Answer 4

(SMTP) - Simple Mail Transfer Protocol

Question 5

Converts name to IP addresses. Uses UDP and TCP. Uses port UDP/53.

Answer 5

(DNS) - Domain Name System

Question 6

Automate the IP address configuration process. Ports UDP 67 and 68.

Answer 6

Dynamic Host Configuration Protocol (DHCP)

Question 7

Web server communication. Port TCP 80.

Answer 7

Hypertext Transfer Protocol (HTTP).

Question 8

Receive email into an email client. Runs on port TCP 110. Alternative is Internet message access protocol (IMAP).

Answer 8

Post Office Protocol version 3 (POP3)

Question 9

Register, remove, and find Windows services by name. Uses UDP 137 port.

Answer 9

NetBIOS name service

Question 10

Windows connection-oriented data transfer. Uses port TCP 139.

Answer 10

NetBIOS session service

Question 11

A newer email client protocol. Allows messages to be stored on an email server instead of downloaded to client. Runs on TCP 143.

Answer 11

Internet Message Access Protocol v4 (IMAP)

Question 12

Facilitates network management functionality. Protocol that makes Network management system possible (NMS). Gather metrics and manage network devices. Receive alerts from network devices.

Answer 12

Simple Network Management Protocol

Question 13

Store and retrieve information in a network directory. Referred to as Microsoft active directory. Most interactions are via utilities like an authentication program (network logon) or a search engine that locates a resource in a directory. Uses port TCP 389.

Answer 13

Lightweight Directory Access Protocol (LDAP).

Question 14

Web server communication with encryption. uses TCP 443.

Answer 14

Hypertext Transfer Protocol Secure (HTTPS)

Question 15

Windows file transfers and printer sharing. Primarily used in Windows. Also called CIFS (Common Internet File System). Uses TCP 445.

Answer 15

Server Message Block (SMB)/ Common Internet file system (CIFS)

Question 16

Used in windows environment to make remote desktop Communication possible. Presents Graphical display of remote devices rather then a command line as in telnet or SSH. Uses TCP 3389

Answer 16

Remote Desk Protocol. (RDP).