Free SDSI practice test — 299+ SDSI practice questions with detailed explanations across all 4 official SDSI exam domains. Every set is scored and drawn from the live question bank — so you practise exactly what the exam tests, not outdated dumps.
Courseiva includes 299+ Cisco Designing Cisco Security Infrastructure (SDSI, 300-745, CCNP Security, design-focused) (SDSI) practice questions across the official exam domains.
Feature
Courseiva
This free SDSI practice test mirrors the structure and difficulty of the real Cisco Designing Cisco Security Infrastructure (SDSI, 300-745, CCNP Security, design-focused) (SDSI) exam. Every question is written against the official 2026 exam blueprint published by Cisco, ensuring you practise exactly what the exam tests — not last year's objectives.
The SDSI blueprint is divided into 4weighted domains. Questions on this page are distributed proportionally across each domain, so the mix you see here reflects the same weighting you'll face on exam day. High-weight domains like Risk Events And Requirements and AI Automation And Devsecops contribute the most questions, meaning focused practice on these areas gives you the highest return on study time.
SDSI Exam Blueprint — 4 Domains
Risk Events And Requirements
AI Automation And Devsecops
Application Security Design
Secure Infrastructure Design
23 numbered sets, 4 domain question banks, and targeted sessions — every page is a unique set of questions.
Choose all correct answers
Each chapter page covers one topic in depth — theory, key concepts, and focused practice questions. Use these to close knowledge gaps before returning to full practice tests.
Getting the most from practice questions requires more than just clicking through answers. Here is the study method used by candidates who pass SDSI on their first attempt:
Answer before revealing
Read each SDSI question fully, eliminate obviously wrong choices, then commit to an answer before clicking to reveal. This active recall process is what builds lasting knowledge.
Read every explanation
Even when you answer correctly, read the full explanation. Knowing WHY the right answer is correct — and why the distractors are wrong — is what separates a 750 score from a 900 score.
Track weak domains
Note which SDSI domains you get wrong most often. Then do a targeted 20-30 question session focused only on that domain until your accuracy improves.
Simulate exam pacing
The real SDSI gives you roughly 0.6 minutes per question. Use the 60 or 120-question sessions to practise hitting that pace comfortably.
Most candidates who pass SDSI on their first attempt report doing between 400 and 800 practice questions over 4–8 weeks of preparation. With 299+ questions in the Courseiva bank, you have more than enough material to build that repetition without seeing the same question twice.
Answer each question to reveal the full explanation and correct answer. This starter set is drawn from all 4 exam domains in blueprint proportion. Use the session selector to start a longer focused practice run.
Following a ransomware incident, an architect must modify the network segmentation strategy. What is the most effective approach to mitigate lateral movement using Cisco TrustSec?
Select an answer to reveal the explanation
You are automating the lifecycle of Cisco Secure Firewall policies. Which tool should be selected to integrate security policy as code (SaC) into a GitHub Actions pipeline?
Select an answer to reveal the explanation
In a cloud-native environment, which Cisco solution provides visibility into vulnerabilities within the application code and runtime environment?
Select an answer to reveal the explanation
In the context of AI-driven security, what does 'False Positive Reduction' primarily achieve?
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Which of the following is a key requirement for implementing successful DevSecOps in a large organization?
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Which Cisco feature is specifically designed to prevent 'Credential Stuffing' in an automated application environment?
Select an answer to reveal the explanation
What is the primary function of an 'API Gateway' in a secure automated environment?
Select an answer to reveal the explanation
In the context of Cisco Cloudlock, what is a 'Shadow IT' application?
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When designing a multi-cloud CI/CD security architecture, how should secrets (API keys for Cisco FMC) be managed to ensure compliance?
Select an answer to reveal the explanation
When utilizing Cisco DevNet tools for security, which Python library is the standard for interacting with the Cisco FMC API efficiently?
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Which Cisco solution is primarily designed to provide visibility and protection for SaaS applications like Office 365, Salesforce, and Slack?
Select an answer to reveal the explanation
Which Cisco security solution utilizes AI-based 'Cognitive Intelligence' to detect threats in encrypted traffic without decrypting the payload?
Select an answer to reveal the explanation
When designing an automated remediation workflow for Cisco Secure Firewall, what is the specific function of the 'Cisco Secure Firewall REST API' in the context of threat intelligence feeds?
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You are implementing automated policy enforcement for Cisco Secure Access by Duo. Which API allows you to programmatically manage users and authentication settings?
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You are designing an automated pipeline for Cisco Secure Firewall. If a deployment fails, which mechanism ensures the configuration is reverted to the last known good state?
Select an answer to reveal the explanation
To secure API endpoints exposed via Cisco Secure API Gateway, which policy type is best suited to prevent brute-force attacks on authentication endpoints?
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You are designing security for a SaaS application integrated with Cisco Cloudlock. A user is persistently attempting to share sensitive documents with external parties. Which Cloudlock feature should be applied to remediate this?
Select an answer to reveal the explanation
When designing an automated security policy deployment for Cisco Secure Workload (formerly Tetration), which mechanism allows you to test policies in a simulation environment before applying them to production?
Select an answer to reveal the explanation
In a DevSecOps environment, you need to implement Cisco Secure Firewall Management Center (FMC) rule updates via Ansible. Which approach ensures the highest level of security and idempotency?
Select an answer to reveal the explanation
Which Cisco technology should be included in an automated design to ensure 'Zero Trust' access for remote developers accessing internal development servers?
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Answer all 20 questions to see your domain score breakdown
A structured study plan dramatically increases your chances of passing SDSI on the first attempt. The most effective approach combines reading the official Cisco documentation or a study guide, watching video explanations for difficult concepts, and then reinforcing everything with daily practice questions.
We recommend the following weekly structure for SDSI preparation:
Cover each SDSI domain systematically. Read the exam objectives, watch explanatory content, and do 10–20 practice questions per domain to test understanding as you go.
Run full 50–60 question mixed sessions daily. Review every wrong answer in detail. Identify which domains are consistently scoring below 70% and revisit those study materials.
Do 100–120 question timed sessions to simulate real exam conditions. Aim for consistent scores above 80% before booking your exam date. A score above 80% in practice typically translates to a passing SDSI score.
On exam day, the SDSI tests your ability to apply knowledge to realistic scenarios — not just recall definitions. This is why reading explanations and understanding the reasoning behind every answer matters more than simply grinding question volume. Use the high-count sessions (100, 120) in the final weeks as your confidence benchmark.
Questions
200
On the real exam
Time limit
120 min
0.6 min per question
Passing score
Variable
See vendor page
Cisco passing scores vary by exam version and are not always publicly listed. Check the official Cisco exam page before booking.
CLI output interpretation, network topology analysis, routing behaviour, switching concepts, troubleshooting, and configuration questions.
Yes. Courseiva provides free Cisco Designing Cisco Security Infrastructure (SDSI, 300-745, CCNP Security, design-focused) (SDSI) practice questions with explanations across the official exam domains. Start with a quick practice test, then continue with topic-based practice, mock exams, missed-question review, bookmarked questions, weak-topic recommendations, and readiness tracking. No account required. Create a free account to unlock per-domain analytics and progress tracking across every certification on the platform. Courseiva is free forever, supported by advertising.
Every question is written against the official SDSI exam blueprint published by Cisco. Our questions follow the same wording style, scenario complexity, and answer structure as the actual exam. They are original questions — not brain dumps — so you learn the underlying concepts and reasoning, not just memorised answers. Candidates who study with brain dumps often pass but have no transferable knowledge; Courseiva questions make you genuinely competent.
Most candidates who pass SDSI on their first attempt do 30–60 questions per day. Use the Quick 10 session for daily warm-ups when you are short on time. On study days, run a 50 or 60-question session to build stamina. Reserve 100 and 120-question sessions for the final two weeks when you want to simulate real exam conditions and benchmark your readiness.
The SDSI covers 4 domains: Risk Events And Requirements, AI Automation And Devsecops, Application Security Design, Secure Infrastructure Design. Each domain carries a different weight, so allocate your study time accordingly. The highest-weighted domains — Risk Events And Requirements and AI Automation And Devsecops — should receive the most attention.
Exam dumps are memorised question-and-answer lists taken from actual exam papers, often obtained illegally and shared without Cisco's authorisation. Using them violates your NDA and Cisco's certification agreement, and can result in certification revocation. Courseiva questions are 100% original — written by certified engineers to test the same knowledge areas using new scenarios and wording. You learn the material, not just the answers.
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