Memory Management Techniques & System Hardware & Tools
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/4
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
5 Terms
What is the Memory-Management Unit (MMU)?
A hardware device that maps virtual (logical) addresses to physical addresses at runtime.
Compare First-fit, Best-fit, and Worst-fit memory allocation.
First-fit: Allocate the first hole that is big enough.
Best-fit: Allocate the smallest hole that is big enough (leaves the smallest leftover).
Worst-fit: Allocate the largest hole (leaves the largest leftover).
What is DMA (Direct Memory Access)?
A feature that allows certain hardware subsystems to access main system memory independently of the CPU, moving data in blocks to reduce CPU overhead for I/O.
What information does the Linux command strace provide?
It traces system calls invoked by a process and the signals it receives.
What is the return value of fork() in the Parent vs. Child process?
Parent: Receives the PID of the newly created child.
Child: Receives 0.
Failure: Returns a negative value.
