WGU Operating Systems - Missed Questions

Vocabulary terms and definitions based on missed questions regarding scheduling, memory management, file systems, and OS security.

Non-preemptive scheduling

A method where a thread retains a core until it terminates or enters the waiting state.

Round-robin ready queue

In round-robin scheduling, the ready queue is treated as a circular queue.

External fragmentation

The problem of having large blocks of free memory but being unable to allocate them to processes due to size constraints.

Folder layout

The structure of directories that facilitates file organization and accessibility, ranging from basic setups to intricate arrangements with nested folders.

Cloud storage APIs

Interfaces used to access cloud storage instead of NFS or CIFS because they are better suited to handle the latency and failure scenarios of a WAN.

Linked allocation and Indexed allocation

Allocation techniques that create the potential for fragmentation by storing data in non-contiguous blocks.

Bitmap method

A technique used to track free space on a disk where each block is represented by a bit.

Protection rings

An operating system security feature that limits access based on privilege levels.