CompTIA A+ 200-1001 | Networking Part 1 in Hindi | Nugget No.3
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• Ports and protocols
21 – FTP
22 – SSH
23 – Telnet
25 – SMTP
53 – DNS
80 – HTTP
110 – POP3
143 – IMAP
443 – HTTPS
3389 – RDP
137-139 – NetBIOS/NetBT
445 – SMB/CIFS
427 – SLP
548 – AFP
67/68 – DHCP
389 – LDAP
161/162 – SNMP
• TCP vs. UDP
• Routers
• Switches
Managed
Unmanaged
• Access points
• Cloud-based network controller
• Firewall
• Network interface card
• Repeater
• Hub
• Cable/DSL modem
• Bridge
• Patch panel
• Power over Ethernet (PoE)
Injectors
Switch
• Ethernet over Power