Weeks 1-2 Flashcards
Computer parts
Fru
Field replaceable unit
The part can be removed and replaced without requiring any special equipment/materials
Cpu
Central processing unit
The “brain” of the motherboard, controls the processes of the motherboard
Tcp
Transmission control protocol
Connection oriented protocol
Suited for high reliability
Used by http, smtp, telnef
Udp
User datagram protocol
Connectionless protocol Faster than TCP Used for message transport Used for fast and efficient transmission (video gaming) Used by: DNS, DHCP,snmp, voip
Dhcp
Dynamic host control protocol
Ftp
File transfer protocol
Client/server configuration used to transfer files
Exclusively TCP-based service
Utilizes 2 ports: data port and command port.
Ssh
Secure shell
Port 22
Provides confidentiality and integrity over an unsecure network
Telnet
Port 23
Designed to support remote logins and communication between two computers
Unencrypted
Smtp
Simple mail transfer protocol
Port 25
Sending only
Pop3
Post office protocol 3 Uses port 110 by default Client/server protocol to retrieve e-mail Messages are deleted after downloaded Used by most popular email products
Pop3
Post office protocol 3 Uses port 110 by default Client/server protocol to retrieve e-mail Messages are deleted after downloaded Used by most popular email products
Imap
Internet message access protocol Uses port 143 To retrieve mail on a server Messages remain on server as well as locally Users can organize
Http
Hypertext transfer protocol
Uses port 80 but can use 8080
Used to send and receive web based client request
Url
Uniform response locator
Https
Same as http s stands for secure
Port 443
highly resistant to eavesdropping and interception
