Term 541
TCP/IP model
The TCP/IP model is the set of communication protocols used to connect devices on the internet and most private networks, organizing network communication into four layers.
Acronym study
Terms 541–570 of 610 SY0-701 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 541
The TCP/IP model is the set of communication protocols used to connect devices on the internet and most private networks, organizing network communication into four layers.
Term 542
A Teams policy is a set of rules in Microsoft Teams that controls how users can communicate, collaborate, and access features within the application.
Term 543
TKIP is a security protocol used in Wi-Fi networks to strengthen encryption by dynamically changing the encryption key for each data packet.
Term 544
TACACS+ is a network security protocol that separates authentication, authorization, and accounting to control who can access network devices and what they can do.
Term 545
TACACS+ is a remote authentication protocol that uses three separate servers to verify who you are, what you are allowed to do, and record what you did on network devices.
Term 546
A threat is any potential danger that could harm a computer system, network, or data, whether from a malicious hacker, a natural disaster, or an accidental mistake.
Term 547
A threat actor is any person or group that intentionally causes harm to digital systems, networks, or data.
Term 548
Threat analytics is the process of using threat intelligence, machine learning, and behavioral data to identify, assess, and predict cybersecurity threats in real time.
Term 549
Threat emulation is the proactive simulation of real-world cyberattacks within a controlled environment to test an organization's defenses, identify vulnerabilities, and improve security posture.
Term 550
A Microsoft 365 security tool that provides real-time interactive reports to investigate and analyze threats detected by Microsoft Defender for Office 365.
Term 551
Threat hunting is a proactive cybersecurity practice where analysts actively search networks, endpoints, and logs for hidden threats that have evaded automated security tools.
Term 552
Threat intelligence is evidence-based knowledge about existing or emerging cyber threats that helps organizations defend against attacks.
Term 553
Threat modelling is a structured approach to identifying, evaluating, and documenting potential security threats to a system so that defenses can be built proactively.
Term 554
Threat protection is the set of security measures and technologies used to detect, prevent, and respond to cyberattacks and unauthorized access to systems and data.
Term 555
A threat vector is the path or method a cyber attacker uses to gain unauthorized access to a computer system or network.
Term 556
A temporary, automatically generated code that changes every few seconds and is used as an extra layer of security when logging into an account.
Term 557
TKIP is a security protocol used in WPA to replace WEP's static key with dynamic per-packet keys, ensuring data integrity.
Term 558
Transport Layer Security (TLS) is a cryptographic protocol that encrypts data sent over the internet to keep it private and ensure it hasn’t been tampered with.
Term 559
TPM (Trusted Platform Module) is a dedicated hardware chip on a computer's motherboard that stores cryptographic keys, passwords, and certificates to secure the system against unauthorized access and tampering.
Term 560
A Transit Gateway is a network hub that connects multiple virtual private clouds (VPCs) and on-premises networks through a single, central gateway to simplify routing and reduce complexity.
Term 561
Transport Layer Security (TLS) is a cryptographic protocol that provides secure, encrypted communication between two devices over a network, such as between a web browser and a server.
Term 562
A Trojan is a type of malware that disguises itself as a legitimate file or program to trick users into installing it, then performs harmful actions without the user's knowledge.
Term 563
Typosquatting is a cyberattack where attackers register domain names that are common misspellings of popular websites to trick users into visiting fraudulent sites.
Term 564
UDP (User Datagram Protocol) is a communication protocol that sends data quickly without first checking if the receiver is ready or if the data arrived correctly.
Term 565
An unauthenticated scan is a vulnerability assessment performed without providing valid login credentials, simulating an outside attacker's perspective.
Term 566
Unified Threat Management (UTM) is a single security appliance or service that combines multiple network security functions like firewall, antivirus, intrusion prevention, and content filtering into one device.
Term 567
A User Access Administrator is an IT professional responsible for managing who can access what resources in an organization, including creating, modifying, and revoking user accounts and permissions across systems.
Term 568
User Account Control (UAC) is a Windows security feature that prevents unauthorized changes to the operating system by prompting for permission before allowing actions that affect system settings or installed programs.
Term 569
User Datagram Protocol (UDP) is a fast, connectionless network protocol that sends data without first checking if the receiver is ready or if the data arrived safely.
Term 570
A user-defined route (UDR) is a custom routing rule you create in a cloud or on-premises network to override or supplement the system's default routing behavior, directing network traffic along a specific path.