Protocols Revision (Computer Tech)
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36 Terms
Q: What does HTTP stand for?
HyperText Transfer Protocol
Q: What does HTTPS stand for?
HyperText Transfer Protocol Secure
Q: What does the "S" in HTTPS mean?
Secure
Q: What makes HTTPS secure?
Uses TLS or SSL to encrypt data
Q: What is HTTP/HTTPS used for?
Transferring web pages and data between browser and server
Q: What does SMTP stand for?
Simple Mail Transfer Protocol
Q: What is SMTP used for?
Sending outgoing emails
Q: What does POP3 stand for?
Post Office Protocol version 3
Q: What is POP3 used for?
Downloading incoming emails
Q: What happens to emails after POP3 downloads them?
Usually deleted from the server (unless saved)
Q: What is the purpose of IP?
Addressing and routing data packets
Q: What does IPv4 use?
32-bit addresses (e.g., 192.168.0.1)
Q: How many addresses does IPv4 support?
About 4.3 billion
Q: What does IPv6 use?
128-bit addresses (e.g., 2001:0db8::1)
Q: Why was IPv6 created?
To allow many more unique addresses
Q: What does TCP/IP stand for
Transmission Control Protocol / Internet Protocol
Q: What does TCP do?
Ensures data is delivered in order and without errors
Q: What does IP do?
Routes packets to the correct destination
Q: Why is TCP slower but reliable?
It checks for errors and ensures correct order
Q: What does TCP/IP describe overall?
The rules for how computers communicate online
Q: What does UDP stand for?
User Datagram Protocol
Q: What's the main feature of UDP?
Fast but no error checking
Q: What is UDP used for?
Video calls, online gaming, live streaming
Q: What does TLS stand for?
Transport Layer Security
Q: What does TLS provide?
Encryption, authentication, and data integrity
Q: What protocol did TLS replace?
SSL
Q: Where is TLS used?
HTTPS and secure emails
Q: What does DNS stand for?
Domain Name System
Q: What does DNS do?
Converts domain names to IP addresses
Q: What's a simple way to describe DNS?
The "phone book" of the internet
Q: What does DHCP stand for?
Dynamic Host Configuration Protocol
Q: What does DHCP do?
Automatically assigns IP addresses to devices
Q: Why is DHCP useful?
Saves time and avoids IP conflicts
Q: What does FTP stand for?
File Transfer Protocol
Q: What is FTP used for?
Uploading and downloading files over a network
Q: What are the secure versions of FTP?
FTPS and SFTP