ISC2 CSSLP Practice Test
Use five mixed sets to see how you handle the full eight-domain blueprint, then drill the domain that keeps costing you questions. Every free test contains 20 questions on a roughly 29-minute clock, matching the current exam's average pace.
Mixed Set — ISC2 CSSLP Practice Tests
Each mixed set spreads questions across all eight current domains. Architecture and Design carries the largest official weight at 15%, while Implementation and Testing are 14% each, so those areas appear more often than the 10% Supply Chain domain.
Domain Wise — CSSLP Practice Tests
Use a domain test after a mixed set has exposed the gap. Twenty focused questions are enough to tell whether you understand the lifecycle decision behind the topic or only recognize the terminology.
Twenty questions finds the weak phase.
125 questions tests the three-hour problem.
The free sets are for diagnosis. The full-length series is for the point where you need to make lifecycle decisions for three straight hours, with all eight domains represented in one paper.
| Free tests on this page | Full-length practice tests | |
|---|---|---|
| Questions | 20 per test | 125 per test |
| Time limit | ~29 minutes | 180 minutes |
| Coverage | Mixed eight-domain set or one-domain drill | All eight domains in every test |
| Score you get | Short-test result | Estimated scaled practice score against the 700 benchmark |
| Per-domain breakdown | — | Eight-domain result breakdown |
| Choose-TWO | — | 13 Select TWO questions per test |
| Exam conditions | Timed | Flagging, final review and automatic submission at zero |
| Report | — | Score plus eight-domain result breakdown |
| Number available | 13 free tests · 260 questions | 10 tests · 1,250 questions |
| Price | Free | From $2.99₹119£2.39€2.69 per test |
How to Use These Tests in a Study Plan
Short tests tell you where to work. Full-length tests tell you whether the work still holds together after two hours of decisions.
Benchmark
Take two mixed sets before a heavy revision block. Do not chase the percentage. Look for the lifecycle phase that repeatedly produces the wrong decision.
Start with Practice Test 1 →Drill the gap
Move to the matching domain test. If Architecture and Design is weak, spend the next session on threat modeling, design review and trust boundaries rather than rereading all eight domains.
Practice Architecture and Design →Run the full paper
When individual domains stop surprising you, sit 125 questions under the full three-hour clock. That is where pacing, concentration and cross-domain judgment start to matter.
Get Full-Length Tests →About the ISC2 CSSLP Exam
The current outline became effective on 15 September 2023. CSSLP remains a three-hour exam with 125 items across eight secure-software domains.
What CSSLP validates
Certified Secure Software Lifecycle Professional (CSSLP) focuses on applying security throughout the software lifecycle: concepts and governance, requirements, architecture and design, implementation, testing, deployment and maintenance, plus software supply chain security.
The credential is aimed at software and security professionals who make or review those decisions in practice. ISC2 requires experience in at least one of the current CSSLP domains before full certification is awarded.
Exam format
Items: 125.
Time: 3 hours.
Passing grade: 700 out of 1000 points.
Language: English.
Delivery: Pearson testing center.
Standard registration: US $599 in the Americas and Asia Pacific; £485.19 in the UK; €575.04 in EMEA.
Experience and renewal
Experience: Four years of cumulative full-time work in one or more current CSSLP domains.
Degree waiver: A qualifying bachelor’s or master’s degree can satisfy up to one year.
Associate path: Pass first, then earn the required experience within five years.
CPE requirement: 90 credits across each three-year certification cycle.
Annual maintenance fee: US $135 for ISC2 members holding CSSLP.
Retakes: 30 / 60 / 90 test-free days, with a maximum of four attempts in 12 months.
CSSLP Domain Weights — Current Exam Outline
The official weights are close enough that no domain can be ignored. Architecture and Design is largest at 15%; Supply Chain is smallest at 10%.
| Domain | Topic | Weight |
|---|---|---|
| Domain 1 | Secure Software Concepts | 12% |
| Domain 2 | Secure Software Lifecycle Management | 11% |
| Domain 3 | Secure Software Requirements | 13% |
| Domain 4 | Secure Software Architecture and Design | 15% |
| Domain 5 | Secure Software Implementation | 14% |
| Domain 6 | Secure Software Testing | 14% |
| Domain 7 | Secure Software Deployment, Operations, Maintenance | 11% |
| Domain 8 | Secure Software Supply Chain | 10% |
How These CSSLP Practice Tests Are Written
Built around lifecycle decisions. CSSLP questions often turn on when a control belongs. A good control can still be the wrong answer if the missing decision should have been made in requirements or architecture rather than patched later.
Weighted to the current outline. Mixed sets spread attention across all eight domains, while the focused tests let you stop and work on one phase when the mixed result points to a gap.
Timed at the live exam pace. Three hours for 125 items is about 1.44 minutes per item. A 20-question set therefore gets roughly 29 minutes.
Know what a short set can tell you. These 20-question tests are built for secure-software knowledge, judgment and pacing. Use the 125-question series when you need a full three-hour rehearsal.
CSSLP Exam Preparation Tips
Study strategy
Study the handoffs. Requirements should trace into architecture, implementation and testing. When those links are weak, the exam often gives you several technically valid answers and asks which action belongs first.
Work from risk to control. Be able to explain the business or technical risk, the requirement that follows from it, and the evidence that proves the control works.
Do not isolate supply chain. Components, suppliers, build integrity and provenance connect back into architecture, implementation, testing and operations.
Test-taking strategy
Identify the lifecycle phase before the answer. Requirements, design, implementation, testing and operations can all offer plausible controls. The stem tells you where the decision belongs.
Respect qualifiers. FIRST, BEST and MOST appropriate are there to separate two answers that could both be useful. Pick the one that addresses the deciding condition at the responsible phase.
Protect the clock. The average is about 86 seconds per item. If a scenario is absorbing several minutes, make the best supported choice and keep moving.
Frequently Asked Questions
ISC2 lists 125 items with a three-hour exam time. The exam is available in English at Pearson testing centers.
ISC2 sets the passing grade at 700 out of 1000 points. That is a scaled passing standard, not a statement that 70% of the questions must be correct.
The current CSSLP exam outline became effective on 15 September 2023. It has eight domains weighted 12%, 11%, 13%, 15%, 14%, 14%, 11% and 10%.
ISC2 currently lists standard CSSLP registration at US $599 in the Americas, Asia Pacific and other regions priced in US dollars. The listed standard price is £485.19 in the United Kingdom and €575.04 in EMEA.
You need four years of cumulative full-time experience in one or more current CSSLP domains. A qualifying bachelor’s or master’s degree in computer science, IT or a related field can satisfy up to one year. Part-time work and internships may also count.
Yes. Passing the exam without the required experience lets you become an Associate of ISC2. You then have five years to earn the four years of experience required for CSSLP.
After a first attempt, you may retest after 30 test-free days. After a second attempt the wait is 60 test-free days, and after a third and later attempts it is 90 test-free days. ISC2 allows up to four attempts for the certification program within a 12-month period.
CSSLP requires 90 CPE credits over each three-year certification cycle. ISC2 members holding CSSLP pay one annual maintenance fee of US $135, regardless of how many qualifying ISC2 certifications they hold.
Yes. The five mixed sets and eight domain-wise tests on this page are free. Each test contains 20 questions and uses a roughly 29-minute timer to keep the same average pace as 125 items in three hours.
Yes. The full-length CSSLP practice tests contain 125 questions in 180 minutes, with all eight domains represented in every test. There are ten full-length tests, and each includes 112 single-answer questions plus 13 Select TWO questions.
Find the weak domain. Then test the full three hours.
Start with a free mixed set. When the domain gaps are under control, move to a full 125-question practice test and see whether the pace still holds.
