In computing, the expression 2³⁰ roughly equals how many bytes?

• 536,870,912 bytes

• 1,073,741,824 bytes

• 268,435,456 bytes

• 1,048,576 bytes

A malicious user modifies BIOS firmware to capture typed credentials. This primarily threatens:

• Confidentiality

• Availability only

• Redundancy

• CPU microcode updates

Hexadecimal 0xC0FFEE in decimal is:

• 12,345

• 12,649,742

• 6,553,599

• 314,159

A machine uses an ARM64 CPU. Which scenario is most likely?

• It’s a legacy workstation

• It’s a modern mobile device or specialized system

• It requires a BIOS-based OS

• It can’t execute floating-point instructions

Dual-boot system partitions must consider:

• Multiple OS file systems that don’t conflict (e.g., NTFS + ext4)

• Uniform memory addresses

• GPU bridging

• MBR limited to 32 partitions

An IoT thermostat on a default password is discovered in Shodan searches. This primarily fails:

• Availability

• Confidentiality

• Data type classification

• Virtual memory usage

A user tries INSERT in an SQL table but sees “Violation of PRIMARY KEY.” This means:

• A duplicate key was inserted where uniqueness is required

• The OS lacks drivers

• The foreign key is missing

• The BIOS is locked

A developer wants a non-blocking approach for network I/O in an interpreted language. They might use:

• BIOS interrupts

• Async/event-driven scripting (e.g., Node.js)

• For loops only

• Kernel-mode drivers

Linux sees a storage device named “/dev/sda.” This is likely:

• An optical drive

• A SATA/SCSI disk recognized as the first drive

• A USB device only

• A system directory

Data correlation using machine learning on large data sets is typically:

• An example of Big Data analytics for business insights

• A BIOS-level function

• Minimally helpful

• Physical security method