Cisco 100-140 CCST IT Support Practice Exam
Cover every domain on Cisco’s CCST IT Support exam — IT support job tasks, hardware, connectivity and resource access, operating system and application issues, and common threats and prevention — with objective-mapped questions, immediate feedback in Learn mode, and full timed simulation in Exam mode.
Start 24-hour free trial →100-140 exam at a glance
- Vendor
- Cisco
- Exam code
- 100-140
- Certification
- Cisco Certified Support Technician (CCST) IT Support
- Level
- Entry-level (foundational)
- Family
- One of three CCST exams — IT Support (100-140), Networking (100-150), Cybersecurity (100-160)
- Duration
- 50 minutes
- Format
- Multiple choice and interactive item types; confirm the current format on Cisco’s exam page
- Domains
- Five objective areas (see below); Cisco does not publish fixed percentage weights for CCST
- Prerequisites
- None. Suitable for candidates new to IT; basic familiarity with computers helps but isn’t required
- Target roles
- Help desk, desktop support, IT end-user support, computer support specialist
- Delivery
- Certiport (in person or online proctored); confirm current options with Cisco
- Cost (USD)
- Confirm current pricing on Cisco/Certiport; CCST pricing varies by region and channel
Source: Cisco — Cisco Certified Support Technician (CCST) IT Support (100-140) exam page. Verify current details with Cisco before scheduling.
About the Cisco CCST IT Support (100-140) certification
The 100-140 exam earns the Cisco Certified Support Technician (CCST) IT Support certification — an entry-level credential aimed at people starting out in IT support. It validates the foundational skills a frontline technician uses every day: taking and managing support tickets, documenting issues clearly, troubleshooting hardware and connectivity, resolving operating-system and application problems, and recognizing common security threats. For how certification exams work generally, see the certification study guides in our Learning Hub.
CCST IT Support is one of three CCST exams — IT Support (100-140), Networking (100-150), and Cybersecurity (100-160) — each a standalone entry point. There are no prerequisites, and the exam is designed to be approachable for career-changers and students, while still mapping to the real tasks of a help-desk or desktop-support role. It’s a natural first step toward Cisco’s associate-level CCNA (200-301) once you’re ready to go deeper into networking.
Every PowerKram practice question maps to one of the exam’s objective areas and links to Cisco’s own exam page, so a weak spot becomes a specific study step rather than a guess.
100-140 exam domains
Cisco organizes the CCST IT Support exam into five objective areas. Cisco publishes the objectives but not a fixed percentage weight for each, so rather than invent numbers we list the areas and describe what each covers. Independent preparation guides suggest connectivity, operating-system/application, and threats questions tend to appear often — but treat all five as important and build breadth first. Confirm the current objectives on Cisco’s exam page.
Ticket queue and time management, clear and comprehensive issue documentation, working with end customers, and understanding common IT support job roles.
PC and laptop components, peripherals and printers, storage, BIOS/UEFI and POST, basic safety procedures, component installation and upgrades, and hardware troubleshooting.
Accessing network-based resources, troubleshooting peripherals and basic end-device connectivity to the network, and resolving common access problems.
Windows, macOS, and mobile device operation; virtualization and cloud terminology; and diagnosing and resolving common application problems.
Describing common security threats, avoiding social engineering, and recognizing confidentiality and basic security-hygiene guidelines a support technician must follow.
Source: Cisco — CCST IT Support (100-140) exam objectives. Cisco does not publish a fixed percentage for each area, so none is shown here. Verify the current objectives before scheduling.
Who the 100-140 exam is for
CCST IT Support is built for people at the very start of an IT career:
- Career-changers and students breaking into IT with a recognized first credential.
- Help-desk and desktop-support hopefuls who want to prove frontline troubleshooting skills.
- Early-career technicians formalizing hands-on experience they already have.
- Anyone planning a Cisco path who wants an approachable on-ramp before CCNA.
Its CCST siblings let you branch by interest: CCST Networking (100-150) leans toward network fundamentals and CCST Cybersecurity (100-160) toward security basics. When you’re ready to go further, CCNA (200-301) is the associate-level next step. For where support skills lead, see the entry-level IT and support career paths in our Career Hub.
What this 100-140 practice exam delivers
Learn mode
Get the correct answer, the explanation, and a direct link to Cisco’s exam material each question maps to — immediately after each question. Ideal for building confidence when the concepts are new.
Exam mode
Timed, full-length simulation across the five objective areas at the real 50-minute pace — so test day feels familiar.
Source-linked explanations
Every answer links to Cisco’s own CCST IT Support exam material, so you can verify hardware, connectivity, OS, and security concepts against the source.
Score by objective area
Results break down across the five areas so you can see whether it’s hardware, connectivity, OS/applications, threats, or support tasks that needs more work.
Sample 100-140 practice questions
Ten free questions across the CCST IT Support objective areas, with full explanations and source links to Cisco’s exam material. The complete bank is available with the 24-hour trial.
Why is clear, comprehensive documentation of a support issue valuable?
- It lets you skip troubleshooting entirely
- It helps future IT support interactions and preserves a record of what was done and why
- It replaces the need for a ticketing system
- It guarantees the issue never recurs
Show answer & explanation
Correct: B. Good documentation delivers value to the business and future support staff: it records the issue, the steps taken, and the resolution, so the next interaction starts informed rather than from scratch.
Why not the others: it doesn’t let you skip troubleshooting (A), replace the ticketing system (C), or guarantee an issue never recurs (D).
Source: Cisco — CCST IT Support: job tasks & documentation → Further reading: PowerKram — CCNA (200-301) →What should you do first before opening a desktop PC to replace an internal component?
- Power it off, unplug it, and take anti-static precautions
- Spray the interior with water to cool it
- Delete the operating system
- Increase the monitor brightness
Show answer & explanation
Correct: A. Basic safety comes first: power down, disconnect from mains power, and guard against electrostatic discharge (for example with an anti-static wrist strap) before touching internal components.
Why not the others: water (B) would destroy the electronics, deleting the OS (C) is unrelated and harmful, and monitor brightness (D) has nothing to do with safe hardware work.
Source: Cisco — CCST IT Support: hardware & safety →A computer powers on but shows no display and emits a sequence of beeps at startup. What are these beeps?
- A screensaver alert
- An email notification
- POST beep codes indicating a hardware problem detected during startup
- A sign the printer is out of paper
Show answer & explanation
Correct: C. The Power-On Self-Test (POST) runs at startup; beep codes are how the firmware signals a detected hardware fault (such as memory or graphics) before the OS loads.
Why not the others: the beeps aren’t a screensaver (A), an email alert (B), or a printer message (D).
Source: Cisco — CCST IT Support: hardware troubleshooting → Further reading: PowerKram — CCST Networking (100-150) →A user reports they cannot reach any websites, but other users on the same network can. What is a sensible first check?
- Replace the building’s internet circuit
- Reinstall every application on the computer
- Verify that device’s network connection and IP configuration
- Replace the monitor
Show answer & explanation
Correct: C. Because only one device is affected, start local: confirm its cable/Wi-Fi connection and its IP configuration (address, gateway, DNS) before suspecting anything network-wide.
Why not the others: replacing the circuit (A) is wrong when others work fine, reinstalling every app (B) is disproportionate, and the monitor (D) is unrelated to connectivity.
Source: Cisco — CCST IT Support: connectivity & resource access → Further reading: PowerKram — CCST Networking (100-150) →Which utility is commonly used to test whether one device can reach another across the network?
- A word processor
- The ping command
- A spreadsheet macro
- A screen recorder
Show answer & explanation
Correct: B. ping sends ICMP echo requests to a target and reports whether replies come back, making it a quick first test of basic reachability and latency between devices.
Why not the others: a word processor (A), a spreadsheet macro (C), and a screen recorder (D) do not test network reachability.
Source: Cisco — CCST IT Support: connectivity tools →A single application crashes on launch while everything else on the PC works normally. What is a reasonable early step?
- Replace the computer’s power supply
- Reset the building’s router
- Replace the keyboard
- Repair or reinstall that specific application and check for updates
Show answer & explanation
Correct: D. When the problem is isolated to one application, target that application: repair or reinstall it and apply available updates before touching hardware or the wider network.
Why not the others: the power supply (A), the router (B), and the keyboard (C) don’t explain a single app failing while the rest of the system is fine.
Source: Cisco — CCST IT Support: application issues →In virtualization terms, what is a “virtual machine”?
- A software-based computer that runs an operating system on top of a host’s resources
- A physical server with no software
- A type of network cable
- A printer driver
Show answer & explanation
Correct: A. A virtual machine is a software emulation of a computer that runs its own OS using a share of a physical host’s resources, managed by a hypervisor — foundational virtualization/cloud terminology.
Why not the others: it isn’t a bare physical server (B), a cable (C), or a printer driver (D).
Source: Cisco — CCST IT Support: virtualization & cloud terms →A caller claiming to be from “IT” urgently asks a user for their password to “fix an issue.” What is this?
- A routine and safe request
- A social-engineering attempt the user should refuse and report
- A hardware upgrade
- A normal part of ticket documentation
Show answer & explanation
Correct: B. Legitimate IT staff do not need a user’s password; an urgent request for credentials is a classic social-engineering tactic. The user should refuse and report it.
Why not the others: it’s not safe or routine (A), not a hardware upgrade (C), and never a normal part of documentation (D).
Source: Cisco — CCST IT Support: threats & social engineering → Further reading: PowerKram — CCST Cybersecurity (100-160) →Which practice best protects confidential information a support technician may see?
- Sharing it freely to speed up work
- Posting it on a public forum for help
- Handling it only as needed and following confidentiality guidelines
- Emailing it to everyone in the company
Show answer & explanation
Correct: C. Confidential data should be accessed only when necessary for the task and handled per the organization’s confidentiality and data-protection guidelines — a core professional responsibility.
Why not the others: sharing freely (A), posting publicly (B), or mass-emailing it (D) all breach confidentiality.
Source: Cisco — CCST IT Support: confidentiality guidelines → Further reading: PowerKram — CCST Cybersecurity (100-160) →Several tickets arrive at once. What does effective queue and time management involve?
- Ignoring the queue until it clears itself
- Always working the newest ticket first regardless of severity
- Closing every ticket unresolved to reduce the count
- Prioritizing tickets by impact and urgency and communicating status to users
Show answer & explanation
Correct: D. Good queue management means triaging by impact and urgency, setting expectations, and keeping users informed — so the most important issues are handled first and nobody is left in the dark.
Why not the others: ignoring the queue (A), always newest-first (B), and closing tickets unresolved (C) all harm service quality.
Source: Cisco — CCST IT Support: queue & time management →Keep going: Learning & Career resources
CCST IT Support is a launchpad — into the other CCST tracks, toward CCNA, and into frontline IT roles. Two PowerKram hubs back this exam.
Deep dive: 100-140 scope, the CCST family, and study path
Where 100-140 sits
CCST IT Support is an entry point with no prerequisites — a modern, approachable first credential for frontline IT. It sits alongside CCST Networking and CCST Cybersecurity, and below Cisco’s associate-level CCNA. Pick IT Support if help-desk and desktop troubleshooting is your target role. See CCNA (200-301) →
The five objective areas
Job tasks and documentation, hardware, connectivity and resource access, operating system and application issues, and common threats and prevention. Cisco doesn’t publish per-area percentages, so build breadth across all five rather than betting on one being heaviest. See CCST Networking (100-150) →
Realistic study path
Most candidates can prepare in a few weeks. Get hands-on where you can — open a PC, practice safe component handling, run ping and basic connectivity checks, and get comfortable moving around Windows, macOS, and a mobile device. Pair that with objective-mapped practice questions and one timed run at the 50-minute pace before test day. Confirm the current objectives and format on Cisco’s exam page. See CCST Cybersecurity (100-160) →
Frequently asked questions
Is the 100-140 exam entry-level?
How long is the exam and what does it cover?
How is CCST IT Support different from CCST Networking and Cybersecurity?
What comes after CCST IT Support?
Does Cisco publish domain weights for 100-140?
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