Segmentation

Segmentation

Dividing a program's address space into variable-sized, logically meaningful segments such as code, stack, and heap.

Network Segmentation

How dividing a network into isolated zones, such as VLANs or subnets, limits lateral movement when a segment is compromised.

Difference Between Paging and Segmentation

Paging divides memory into fixed-size blocks called pages (mapped to equal-size frames in physical memory), while segmentation divides memory into variable-siz…

What Is Fragmentation?

Fragmentation is the wasted memory that builds up as blocks are allocated and freed over time, leaving usable space scattered in pieces too small or too oddly…

What is Segmentation with Paging?

Segmentation with paging is a hybrid memory management scheme where a process's address space is first divided into logically meaningful, variable-sized segmen…

Internal vs External Fragmentation

Internal fragmentation is wasted space inside an allocated block because it is larger than what was requested, while external fragmentation is wasted space bet…

What Causes External Fragmentation and How Is It Solved?

External fragmentation happens when free memory becomes scattered into many small, non-contiguous holes so that even though total free space is sufficient, no…