What component stores data temporarily for quick access by the CPU?
RAM
What does IP stand for?
Internet Protocol
Name the main 5 OS
Windows, Mac OS, Linux, iOS, Android
What does MFA stand for?
Multi Factor Authentication
A storage location that can change value during program execution
Variable
What is the troubleshooting theory
I Eat Tacos Every Veterans Day
Identify the Problem
Establish a theory of probable cause
Test the theory
Establish a plan of action
Verify full system functionality
Document your findings
Name a common input device besides a keyboard.
Mouse, scanner, Touchscreen
This directs data packets between networks
Router
This allows the OS to communicate with hardware
Device driver
A system that blocks unauthorized network traffic is...
Firewall
What is an interpreted language?
Extra 100pts: Give one example of an interpreted language
A language executed line-by-line by an interpreter (e.g., Python, JavaScript)
What is the purpose of preventive maintenance?
Reduce risk of failure and maintain system performance
What is the purpose of a GPU?
To handle graphics processing for rendering images, video, and animations.
What is the difference between TCP and UDP.
TCP = reliable, connection-oriented
UDP = faster, connectionless
Running multiple virtual machines on a single physical host is called...
Virtualization
What is the difference between phishing and spear-phishing?
Phishing = broad attacks
spear-phishing = targeted attacks
What is branching in programming?
Making decisions using if/else statements
Name one common troubleshooting tool for networks.
Ping, traceroute, cable tester
What is the difference between HDD and SSD?
HDD uses spinning disks; SSD uses flash memory and is faster.
What is a unique hardware identifier for a network interface
MAC Address
What is the difference between GUI and CLI?
GUI = graphical interface
CLI = text-based commands
Name one method of encryption.
AES, RSA, DES
What is a function?
A reusable block of code that performs a specific task and may return a value
What is a rollback in software updates?
Reverting to a previous version after a failed update
Daily Double
These 2 circled components are...
CPU & CMOS Battery
What type of network topology is this?
Star
You need to run two different versions of the same application on one computer without conflict. What OS feature could you use, and why?
Virtualization because this environment can run independently without interfering with the host OS.
A company employee reuses the same weak password across multiple systems. Explain two risks this creates and one security control to reduce the risk.
Risks: credential stuffing, unauthorized access to multiple systems.
Control: enforce strong password policies + MFA.
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0 1 2 3
What number will be returned if the program calls array[2]?
15
A user reports that their laptop battery drains extremely quickly even after being fully charged. What are two possible causes of this issue, and what would you check first?
Possible causes:
Battery health is degraded.
Too many background apps or high power settings.
First check: Review power settings and battery health report before recommending a replacement battery.