Core 1 Flashcards
File Transfer Protocol (FTP) - Data Connection
TCP 20 - Makes files available for download across a network, data connection port
File Transfer Protocol (FTP)—Control connection
TCP 21 - Makes files available for download across a network, control connection port
Secure Shell (SSH)
TCP 22 - Makes a secure connection to the command-line interface of a server
Telnet
TCP 23 - Makes an unsecure connection to the command-line interface of a server
Simple Mail Transfer Protocol (SMTP)
TCP 25 - Transfer email messages across a network. TCP 587 - message submission agents to submit messages for delivery
Domain Name System (DNS)
TCP/UDP 53 - Facilitate identification of hosts by name alongside IP addressing
Dynamic Host Configuration Protocol (DHCP) Server
UDP 67 - Provision an IP address configuration to clients
DHCP Client
UDP 68 - Request a dynamic IP address configuration from a server
HyperText Transfer Protocol (HTTP)
TCP 80 - Provision unsecure websites and web services
Post Office Protocol (POP)
TCP 110 - Retrieve email messages from a server mailbox. TCP 995 - Over a secure port
NetBIOS over TCP/IP
UDP 137/TCP 139 - Support networking features of legacy Windows versions
Internet Mail Access Protocol (IMAP)
TCP 143 - Read and manage mail messages on a server mailbox. TCP 993 - IMAP secure
Simple Network Management Protocol (SNMP)
UDP 161 - Query status information from network devices
SNMP trap operation
UDP 162 - Report status information to a management server
Lightweight Directory Access Protocol (LDAP)
TCP 389 - Query information about network users and resources
HTTP Secure (HTTPS)
TCP 443 - Provision secure websites and services
Server Message Block (SMB)
TCP 445 - Implement Windows-compatible file and printer sharing services on a local network (also sometimes referred to as Common Internet File System [CIFS])
Remote Desktop Protocol (RDP)
TCP 3389 - Makes a secure connection to the graphical desktop of a computer
Syslog
UDP 514 - supporting software that facilitates log collection to a remote server
Twisted Nematic (TN) LCD
Good - Fast response times
Bad - poor viewing angles, color shifts
In Plane Switching (IPS) LCD
Good - Excellent color representation
Bad - more expensive to produce than TN
Vertical Alignment (VA) LCD
Good compromise between TN and IPS
Good - great color representation
Bad - Slower response times than TN
Organic Light Emitting Diode (OLED)
Organic compound emits light when receiving an electric current.
Thinner and lighter, no backlight. Used in tablets, phones, and smart watches
