November 19, 2014

1.1.a Network Theory – IOS vs IOS XE

IOS is the acronym for Cisco’s Internetworking Operation System, it is the brain (software OS) behind the brawn (Cisco hardware) for the complex tasks of internetworking; managing and controlling the diverse networking hardware resources and functions; modern IOS consists of multiple modular subsystems. IOSXE improves on IOS by improving portability across platforms and adding extensibility by being built on POSIX (standards for software compatibility with OSes including variants of UNIX)). From the CCIE R&S v5 written blueprint, we’ve the following questions which requires […]

November 19, 2014

CCIE R&S v5 Written Blueprint

The following is a list of the topics covered in the CCIE R&S v5 written blueprint as published by Cisco; it is to be used as a general guideline. I’m planning to publish posts of the topics in the order listed by Cisco for the CCIE R&S v5 written blueprint; in preparation for taking the written exam. 10% 1.0 Network Principles 1.1 Network theory 1.1.a Describe basic software architecture differences between IOS and IOS XE 1.1.a (i) Control […]