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Common TCP and UDP Ports Flashcards
CompTIA A+ 220-1201 (V15) Flashcards
Study our Common TCP and UDP Ports flashcards for the CompTIA A+ 220-1201 (V15) exam with 21+ flashcards. View as flashcards, a searchable table, or as a fun matching game.
| Front | Back |
| Kerberos | UDP 88 |
| Port for AFP? | 548 |
| Port for DNS? | UDP 53 |
| Port for FTP? | TCP 20 and 21 |
| Port for HTTP? | TCP 80 |
| Port for HTTPS? | TCP 443 |
| Port for IMAP? | TCP 143 |
| Port for LDAP? | TCP/UDP 389 |
| Port for POP3? | TCP 110 |
| Port for RDP? | TCP 3389 |
| Port for SLP? | 427 |
| Port for SMB/CIFS? | 445 |
| Port for SMTP? | TCP 25 |
| Port for SNMP? | UDP 161 |
| Port for SSH? | TCP 22 |
| Port for Telnet? | TCP 23 |
| Port for TFTP? | UDP 69 |
| Ports 0-1023 are known as? | Well-known Ports |
| Ports 1,024 to 49,151 are known as? | Registered Ports |
| Ports for DHCP? | UDP 67, 68 |
| Ports for NetBIOS? | TCP/UDP 137, 138, and 139 |
About the Flashcards
Flashcards for the CompTIA A+ exam provide a focused review of common network port numbers and their services. The deck helps students memorize TCP and UDP assignments and quickly identify which protocols map to which ports, with examples such as HTTP, HTTPS, DNS, SSH, FTP, SMTP and RDP for fast recall during study sessions.
Cards emphasize terminology and concepts like well-known ports (0-1023), registered ports (1024-49151), service-to-port mapping, and transport protocol usage so you can interpret exam stems and answer port-identification questions. Use the deck to test recall of specific service ports and reinforce the key ideas that exam questions commonly target.
Topics covered in this flashcard deck:
- Common TCP and UDP ports
- Well-known and registered ports
- Service-to-port mapping
- Directory and authentication ports
- File and remote-access ports