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Cisco CCST 100-150 Networking Study Guide

Cisco Certified Support Technician Networking 100-150

The Cisco Certified Support Technician (CCST) Networking 100-150 is Cisco's entry-level networking exam. It covers standards and concepts, addressing, endpoints and media, infrastructure, diagnosing problems and basic security. It suits students and new IT support staff, and it leads towards CCNA.

  • Exam code 100-150
  • Entry level
  • 6 exam domains

This guide is free, with no sign-up. It explains every Cisco CCST 100-150 Networking exam topic in plain English, one chapter at a time. Read them in order or jump straight to the topic you need.

  • 6chapters
  • 30topics
  • 11diagrams and exhibits
  • 2 h 7 minfast track
Start with Standards and Concepts
  • Every topic follows the same simple pattern: what it is, how it works, common mistakes
  • Diagrams and real command output where a picture explains it best
  • Exam tips and worked subnetting and IPv6 practice, with answers

Chapters

Open a chapter to see its topics and how long each takes.

1Standards and Concepts6 topics · 25 min fast trackNetwork models, performance terms, network types, cloud services and common protocols.
  1. 1OSI and TCP/IP Models, Frames, Packets and Addressing5 min
  2. 2Bandwidth, Throughput, Latency and Speed Tests4 min
  3. 3LAN, WAN, MAN, CAN, PAN, WLAN and Network Topologies4 min
  4. 4Cloud and On-Premises Services, SaaS, PaaS and IaaS4 min
  5. 5TCP and UDP, Connection-Oriented and Connectionless4 min
  6. 6Common Network Applications and Protocols4 min
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2Addressing and Subnet Formats3 topics · 14 min fast trackPrivate and public addresses, NAT, IPv4 subnetting and IPv6 address formats.
  1. 1Private and Public IPv4 Addresses, Classes and NAT5 min
  2. 2IPv4 Addresses, Subnet Masks and Slash Notation5 min
  3. 3IPv6 Addresses, Address Types and Prefixes4 min
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3Endpoints and Media Types5 topics · 20 min fast trackCables, connectors, wired and wireless links, endpoint devices and client checks.
  1. 1Network Cables and Connectors4 min
  2. 2Wi-Fi, Cellular and Wired Network Technologies4 min
  3. 3Endpoint Devices4 min
  4. 4Checking Connectivity on Windows, Linux and macOS4 min
  5. 5Mobile Devices and Wireless Client Settings4 min
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4Infrastructure5 topics · 20 min fast trackStatus lights, cabling from a diagram, device ports, routing concepts and switching concepts.
  1. 1Status Lights on Cisco Devices4 min
  2. 2Cabling Devices from a Network Diagram4 min
  3. 3Ports on Network Devices4 min
  4. 4Basic Routing Concepts4 min
  5. 5Basic Switching Concepts, MAC Tables and VLANs4 min
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5Diagnosing Problems6 topics · 27 min fast trackTroubleshooting method, Wireshark, diagnostic commands, device access and Cisco show commands.
  1. 1Troubleshooting Methods and Help Desk Practice4 min
  2. 2Packet Capture with Wireshark4 min
  3. 3Diagnostic Commands and Reading the Results5 min
  4. 4Accessing and Collecting Data from Network Devices5 min
  5. 5Basic Cisco Show Commands5 min
  6. 6Privilege Levels, Command Help and Auto-Complete4 min
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6Security5 topics · 21 min fast trackFirewalls, CIA and AAA, encryption, certificates, common threats and wireless security for a home router.
  1. 1How Firewalls Filter Traffic5 min
  2. 2CIA, AAA, MFA and Identity Stores4 min
  3. 3Encryption, Certificates and Password Complexity4 min
  4. 4Threats, Vulnerabilities, Spam, Phishing, Malware and DoS4 min
  5. 5Wireless Security with WPA, WPA2 and WPA34 min
Read the chapter overview →

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The full Cisco CCST 100-150 Networking question bank has 749 questions, with timed practice exams and an explanation for every answer.

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