ACK
/æk/
n. “The TCP nod that says ‘I got it.’”
ACK, short for Acknowledgment, is a flag in the TCP (Transmission Control Protocol) header that confirms receipt of data or the successful completion of a step in the TCP handshake. Whenever a device receives data, it sends an ACK packet back to the sender to indicate that the information was received correctly, helping ensure reliable, ordered communication.
Key characteristics of ACK include:
SYN
/sɪn/
n. “The TCP handshake’s polite ‘hello’.”
SYN, short for Synchronize, is a flag in the TCP (Transmission Control Protocol) header used to initiate a connection between two devices on a network. It signals the beginning of the TCP three-way handshake, allowing both the client and server to synchronize sequence numbers and prepare for reliable data transfer.
Key characteristics of SYN include:
OWASP
/ˈoʊwæsp/
n. “The nonprofit watchdog for web application security.”
OWASP, short for Open Web Application Security Project, is a worldwide nonprofit organization focused on improving the security of software. It provides freely available resources, tools, and best practices for developers, security professionals, and organizations to build and maintain secure web applications.
Key aspects of OWASP include:
SIP
/ˌɛs-ˌaɪ-ˈpiː/
n. “The protocol that makes voice and video calls over the internet possible.”
SIP, short for Session Initiation Protocol, is a signaling protocol used to initiate, manage, and terminate real-time communication sessions over IP networks. These sessions can include voice calls, video calls, instant messaging, and multimedia conferences. SIP is widely used in VoIP (Voice over IP) systems, unified communications, and video conferencing platforms.
Key characteristics of SIP include:
Voice over Internet Protocol
/ˈvɔɪp/
n. “Your phone, but over the internet instead of wires.”
VoIP, or Voice over Internet Protocol, is a technology that allows voice communications and multimedia sessions to be transmitted over IP networks, such as the internet, rather than traditional circuit-switched telephone lines. It converts analog audio signals into digital data packets, sends them over a network, and then reassembles them into sound at the receiving end, enabling phone calls, video calls, and conferencing entirely online.