Which Cisco software OS uses monolithic architecture?

Which Cisco software OS uses monolithic architecture?
A . NX-OS
B. IOS XE
C. IOS XR
D. IOS

View Answer

Answer: D

Explanation:

Cisco Internetwork Operating System (IOS) is the software used on most Cisco Systems routers and current Cisco network switches. IOS is a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system. IOS uses a monolithic architecture, meaning that all processes run in a single address space, making it a single-image system.