Set 9 Flashcards
(20 cards)
CPU
(Central Processing Unit). The main processor of a computer that executes instructions and processes data.
CRC
(Cyclic Redundancy Check). An error-checking method that detects data corruption in transmissions or storage.
Credit Card Reader
A device that reads data from credit cards, including magnetic stripe or chip, for payment processing.
Crimper
A tool used to attach connectors (like RJ-45 plugs) to cables by compressing metal contacts.
XSS
(Cross-Site Scripting). A web security vulnerability where attackers inject malicious scripts into trusted websites.
Cryptominer
Software or malware that uses a computer’s resources to mine cryptocurrency, often without user consent.
CSMA/CA
(Carrier Sense Multiple Access with Collision Avoidance). A network protocol used in wireless networks to avoid data collisions by checking if the channel is clear before sending data.
CSMA/CD
(Carrier Sense Multiple Access with Collision Detection). A protocol used in wired Ethernet to detect collisions on the network and resend data after a random delay.
Current
The flow of electric charge measured in amperes (amps); essential for powering electronic components.
DAC
(Discretionary Access Control). A security model where the owner of the resource controls access permissions.
Data Classification
The process of categorizing data based on sensitivity and importance to apply appropriate security levels.
Data Collector Sets
In Windows Performance Monitor, a group of data logging tools that collect system performance data for analysis.
Data Roaming
Using a cellular network outside your provider’s area, which may incur additional charges.
Data Storage
Devices or media used to store digital data, such as hard drives, SSDs, or cloud storage.
Data Usage Cap
A limit set by an ISP on the amount of data a user can transmit or receive during a billing period.
Database System
Software that organizes, stores, and manages data for easy access and manipulation.
DB-9
A 9-pin serial port connector used for older peripherals like mice and modems.
DC
(Direct Current). Electric current flowing in one direction only, commonly used in batteries and electronics.
DDoS
(Distributed Denial of Service). An attack where multiple systems flood a target with traffic to overwhelm and disrupt services.
DDR3 SDRAM
A type of fast, synchronous dynamic RAM used in computers, succeeding DDR2 and preceding DDR4.
