Cisco Certified Support (CCST) IT Support 100-140 Official Cert Guide

The Cisco Certified Support Technician (CCST) IT Support 100-140 Official Cert Guide by Mark Smith, David Bayne, and John Pickard is a comprehensive resource for individuals beginning their journey in IT support. It covers essential topics such as hardware, networking, operating systems, and troubleshooting. Designed to align with the CCST 100-140 exam, the book combines foundational knowledge with practical skills. It serves as an effective guide for building confidence and preparing for entry-level IT support roles.

What you’ll learn

The book covers all exam domains, including:

IT support roles & responsibilities
Hardware troubleshooting
Networking basics (connectivity, IP, DNS, etc.)
Operating systems (Windows & macOS)
Security threats and prevention
Professional skills (communication, documentation)

Who should use it

This guide is ideal if you are:

A complete beginner in IT
Preparing for your first certification
Targeting roles like:
- Help Desk Technician
- IT Support Specialist
- Desktop Support

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