CiscoUpdated 2026Last reviewed

100-150 Practice Test

Build Your Networking Foundation. Pass CCST Networking.

500 scenario-based practice questions covering networking standards, addressing and subnetting, endpoints and media, infrastructure, diagnostics, and security. Your launchpad toward CCNA.

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Your 100-150 exam is in the next 2–4 weeks
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The Cisco CCST Networking (100-150) is a foundational-level Cisco certification. The exam has 35 questions, runs 50 minutes, costs $125, and requires a passing score of ~70%. CertSharp provides 500 exam-style 100-150 practice questions — 30 free with no signup — each with a detailed explanation.

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Updated for 2026 exam blueprint
Detailed explanations for every question

Exam Overview

100-150 Exam Details

Know exactly what to expect on exam day

Questions

35

Duration

50 minutes

Passing Score

~70%

Exam Cost

$125

Coverage

Exam Domains Covered

Every question maps to an official 100-150 domain

1

Standards and Concepts (16%)

2

Addressing and Subnet Formats (12%)

3

Endpoints and Media Types (18%)

4

Infrastructure (22%)

5

Diagnosing Problems (18%)

6

Security (14%)

Why CertSharp

Built for Exam Day, Not Just Study Time

Study guides teach concepts. We prepare you for the actual 100-150 exam.

1

Subnetting and addressing questions drill the math until it is automatic — the single biggest score lever

2

Every explanation ties protocols to real topologies so infrastructure and diagnostics questions click

3

Calibrated harder than the live exam: a steady 80% here predicts a comfortable CCST Networking pass

4

Updated for 2026 — current cabling, wireless, and IPv4/IPv6 addressing

Sample Question

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Harder than the real exam, with detailed explanations

Sample — 100-150

A technician needs to divide the 192.168.10.0/24 network into subnets that each support at least 50 usable hosts, using the fewest subnets possible. Which subnet mask should be used?

A

255.255.255.192 (/26)

B

255.255.255.224 (/27)

C

255.255.255.128 (/25)

D

255.255.255.240 (/28)

Explanation

A /26 mask (255.255.255.192) yields 2^6 − 2 = 62 usable hosts per subnet — the smallest subnet size that still meets the 50-host requirement, and it produces 4 subnets. A /25 (126 hosts) wastes addresses with only 2 subnets, while /27 (30 hosts) and /28 (14 hosts) are too small to fit 50 hosts.

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Official Certification Resources

Our practice questions align with official exam objectives. Study official materials first, then use CertSharp to test your readiness.

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FAQ

100-150 Frequently Asked Questions

Everything you need to know about Cisco CCST Networking

What is the Cisco CCST Networking exam?
The CCST Networking (100-150) is an entry-level Cisco certification covering networking standards, addressing and subnetting, infrastructure, endpoints, diagnostics, and security. The exam costs about $125 and runs 50 minutes.
Is CCST Networking worth it?
Yes. It is a recognized entry-level networking credential and a strong stepping stone to CCNA. It proves you understand core networking concepts, which is valuable for help desk, NOC, and junior network roles.
How hard is CCST Networking?
CCST Networking is entry-level but does require comfort with IP addressing and subnetting. Most candidates pass with 4–6 weeks of study. Subnetting practice is the area that most improves scores.
Should I take CCST Networking before CCNA?
It is a great on-ramp. CCST Networking covers the fundamentals CCNA assumes, so earning it first builds confidence and reduces the gap to the more advanced 200-301 exam.
How many questions are on CCST Networking?
Cisco does not publish a fixed count; expect roughly 35 questions in a 50-minute window, including multiple-choice and interactive question types.
What is the CCST Networking passing score?
Cisco does not publish an exact cut score for CCST exams. Aim for a consistent 80% on quality practice tests to be confident of passing.
How long does it take to prepare for CCST Networking?
Most candidates prepare in 4–6 weeks at about an hour a day. Prioritize subnetting, the OSI/TCP-IP models, common protocols, cabling and media, and basic troubleshooting.
What topics are on CCST Networking?
Key topics: networking standards and the OSI model, IPv4/IPv6 addressing and subnetting, cabling and media types, switches/routers/wireless infrastructure, network diagnostics, and security fundamentals.

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100-150 Practice Test 2026 | Cisco CCST Networking Exam Questions | CertSharp