PCTechEd

  Application Protocol Function Port Number HTTP Web Pages 80 HTTPS Secure Web Pages 443 FTP File Transfer Protocol 20, 21 SFTP Secure File Transfer Protocol 22 TFTP Trivial File Transfer Protocol 69 IMAP Email Incoming 143 POP3 Email Incoming 110 SMTP Simple Mail Transfer Protocol  Email Outgoing 25 Telnet Terminal Emulation 23 SSH Encrypted Terminal Emulation 22 RDP Remote Desktop Protocol 3389 SIP Voice Over IP 5060 Utility Protocol Function Port Number Protocol DNS Domain Name Service - allow use 53 UDP (User Datagram Protocol) DHCP Dynamic Host Control Protocol - Dynamic (Auto) IP Addressing 67, 68 UDP LDAP Lightweight Directory Access Protocol  Directory Query 389 TCP SNMP Network Devices Remote Management; Simple Network Mgmt Protocol 161, 162  UDP SMB  CIFS (Common Internet File System); Windows Share Folder 445 137, 138, 139 TCP UDP AFP MacOS File Service 548 TCP SLP Services Discovery Protocol 427 TCP / UDP NetBIOS / NetBT NetBIOS over TCP/IP 137, 139 ...

  Standard Released Freqeuncy (GHz) Speed (Bandwidth) Range IEEE 802.11 1997 2.4 2 Mbps Indoors: 20 m Outdoors: 100 m Wi-Fi 1/IEEE 802.11a 1999 5/3.7 54 Mbps Indoors: 35 m Outdoors: 120/5000 m Wi-Fi 2/IEEE 802.11b 1999 2.4 11 Mbps Indoors: 35 m Outdoors: 120 m Wi-Fi 3/IEEE 802.11g 2003 2.4 54 Mbps Indoors: 38 m Outdoors: 140 m Wi-Fi 4/IEEE 802.11n 2009 2.4/5 600 Mbps Indoors: 70 m Outdoors: 250 m Wi-Fi 5/IEEE 802.11ac 2013 2.4/5 450 Mbps/1300 Mbps Indoors: 35 m IEEE 802.11ad (WiGig) 2012 60 6.7 Gbps 3.3 m IEEE 802.11ah (HaLow) 2016 0.9 347 Mbps 1 km Wi-Fi 6/IEEE 802.11ax 2019 2.4/5 GHz 450 Mbps/10.53 Gbps 1.5 km

Keypress {When these keys are pressed} Action {Results in this} Alt + Enter Display properties for the selected item. Alt + Esc Cycle through items in the order in which they were opened. Alt + F4 Close the active item, or exit the active app. Alt + F8 Show your password on the sign-in screen. Alt + Left arrow Go back. Alt + Page Down Move down one screen. Alt + Page Up Move up one screen. Alt + Right arrow Go forward. Alt + Shift + arrow keys When a group or tile is in focus on the Start menu, move it in the direction specified. Alt + Spacebar Open the shortcut menu for the active window. Alt + Tab Switch between open apps. Alt + underlined letter Perform the command for that letter. Ctrl + A Select all items in a document or window. Ctrl + Alt + Tab Use the arrow keys to switch between all open apps. Ctrl + arrow key (to move to an item) + Spacebar Select multiple individual items in a window or on the desktop. Ctrl + arrow keys Resize the Start menu when it's open. Ctrl + C (or ...