2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

Question 1

Moves files between systems. (TCP/20 (active mode data, TCP/21 Control). Authenicates with a username and PW. Has full functionality to add, delete, list, ETC.

Answer 1

FTP- File transfer protocol.

Question 2

TCP 22-Encrypted communication link. Looks and acts the same as telnet.

Answer 2

SSH- Secure Shell

Question 3

TCP 23- telecommunication network. Login to devices remotely. Not the best choice for production systems.

Answer 3

Telnet

Question 4

TCP 25- Server to server email transfer. Used to send mail from a device to a mail server. Configured on mobile devices.

Answer 4

Simple Mail Transfer Protocol. SMTP.

Question 5

Convert names to IP addresses UDP/53. Critical resource.

Answer 5

DNS- Domain Name System.

Question 6

Automated configuration of IP address, subnet mask and other options - udp/67, udp/68. Requires a DHCP server, Server, appliance, integrated into a SOHO router, etc. IP addresses are assigned in real-time from a pool. Each system is given a lease and must renew at set intervals.Addresses are assigned by MAC address in the DHCP server.Manage addresses from one location

Answer 6

DHCP - Dynamic Host Configuration Protocol

Question 7

Web server communication TCP/80.

Answer 7

Hypertext Transfer Protocol. HTTP.

Question 8

TCP/110. Receive email into an email client. Basic mail transfer functionality.

Answer 8

Post Office Protocol version 3. POP3.

Question 9

UDP/137. Register, remove and find windows services by name.

Answer 9

NetBios Name Service

Question 10

TCP/139.Windows connection-oriented data transfer.

Answer 10

NetBIos Session Service

Question 11

A newer email client protocol. TCP/143. Includes email inbox management from multiple clients.

Answer 11

Internet Message Access Protocol v4. IMAP4

Question 12

Gather metrics and manage network devices. Queries. udp/161.
Recieve alerts from network devices, Traps UDP/162.

Answer 12

161/162 Simple management protocol SNMP.

Question 13

Directory Services. TCP/389. Store and retrieve information in a directory. Commonly used in Microsoft Active Directory.

Answer 13

LDAP (Lightweight Directory Access Protocol) - tcp/389..

Question 14

Web server communication with encryption. tcp/443.

Answer 14

Hypertext Transfer Protocol Secure. HTTPS.

Question 15

Windows file transfers and printer sharing. Also called CIFS (Common Internet File System). Protocol used by Microsoft Windows.

Answer 15

Server Message Block. tcp/445.

Question 16

Graphical display of remote devices. Share a desktop from a remote location over tcp/3389.Available on many windows versions. Can connect to an entire desktop or just an application. Clients for Windows, macOS, Linux, Unix, iPhone,
Android, and others.

Answer 16

Remote Desktop Protocol. TCP/3389

Question 17

A formal connection and setup. Reliable delivery. Recovery from errors. Manage out of order messages or re-transmissions. Receiver can manage how much data is sent.

Answer 17

TCP – Transmission Control Protocol.

Question 18

Connectionless. No formal open/close to the connection. “unreliable delivery”. No error recovery or re-ordering of data or re-transmissions. Sender determines the amount of data sent.

Answer 18

UDP- User Datagram Protocol.