# Glossary terms from week 4

# <span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">Terms and definitions from the certificate</span>

## <span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Terms and definitions from Course 1, Week 4**</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Antivirus software:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A software program used to prevent, detect, and eliminate malware and viruses</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Database:** </span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">An organized collection of information or data</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Data point:** </span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">A specific piece of information</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Intrusion detection system (IDS):** </span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">An application that monitors system activity and alerts on possible intrusions</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Linux:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> An open-source operating system</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Log:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A record of events that occur within an organization’s systems </span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Network protocol analyzer (packet sniffer):**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A tool designed to capture and analyze data traffic within a network</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Order of volatility:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A sequence outlining the order of data that must be preserved from first to last</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Programming:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A process that can be used to create a specific set of instructions for a computer to execute tasks</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Protecting and preserving evidence:**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> The process of properly working with fragile and volatile digital evidence</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**Security information and event management (SIEM)**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">: An application that collects and analyzes log data to monitor critical activities in an organization</span>

<span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;">**SQL (Structured Query Language):**</span><span style="box-sizing: border-box; -webkit-font-smoothing: antialiased;"> A programming language used to create, interact with, and request information from a database</span>