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Exam Review

Key Facts: ISTQB CTAL-TTA Exam

Exam Questions

ISTQB

65%

Passing Score

ISTQB

120 min

Exam Duration

180 min non-native

$249-299

Exam Fee

ASTQB / national board

38%

Quality Characteristics

Largest domain

Lifetime

Cert Valid

No renewal needed

The CTAL-TTA exam has approximately 60 questions in 120 minutes (180 min for non-native speakers) with a 65% passing score. It tests application (K3) and analysis (K4) of technical and non-functional testing techniques. Prerequisites: ISTQB Foundation Level (CTFL) plus technical testing experience. Key chapters: Risk-based testing (~7%), Structure-based/white-box (~22%), Analytical techniques (~12%), Quality characteristics for technical testing (~38% — security, reliability, performance, maintainability, portability), Reviews (~7%), Test tools (~14%). Certification is valid for life with no renewal.

Sample ISTQB CTAL-TTA Practice Questions

Try these sample questions to review concepts for the ISTQB CTAL-TTA exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What does McCabe's cyclomatic complexity measure for a piece of code?

A.The number of lines in the code

B.The number of linearly independent paths through the code

C.The number of variables used

D.The number of comments

Explanation: Cyclomatic complexity (V(G)) measures the number of linearly independent paths through a control flow graph. The formula V(G) = E - N + 2P (edges - nodes + 2*connected components) or simpler V(G) = decisions + 1. It indicates code complexity and the minimum number of test cases needed for basis path coverage.

2For a function with 3 if-else statements (no nested), what is the cyclomatic complexity?

A.1

B.3

C.4

D.6

Explanation: Each if-statement adds 1 to the complexity (decisions + 1). With 3 if-statements: V(G) = 3 + 1 = 4. This means at least 4 test cases are needed to achieve basis path coverage. Note that else branches don't add to complexity since they share a decision point with the if.

3Which white-box coverage criterion requires that every branch of every decision is exercised at least once?

A.Statement coverage

B.Decision/branch coverage

C.Condition coverage

D.Path coverage

Explanation: Decision (branch) coverage requires that every branch from every decision point be exercised at least once — both the true and false outcomes for each decision. It subsumes statement coverage. Condition coverage requires each individual condition to evaluate to both true and false.

4For the condition (A AND B) OR C, how many test cases are needed for full Modified Condition/Decision Coverage (MC/DC)?

A.2

B.4

C.Approximately N+1 where N is the number of conditions (so 4)

D.8 (all combinations)

Explanation: MC/DC requires showing each condition independently affects the decision outcome. For N conditions, MC/DC typically requires N+1 test cases (here 3+1 = 4). MC/DC is required by safety-critical standards like DO-178C Level A. Full multiple condition coverage would require all 2^3 = 8 combinations.

5Which type of analysis examines code WITHOUT executing it?

A.Dynamic analysis

B.Static analysis

C.Performance testing

D.Security penetration testing

Explanation: Static analysis examines source code without executing it. Examples: linters, code metrics tools, complexity analyzers, dead code detectors, security scanners (SAST). Dynamic analysis requires running the code to observe behavior such as memory usage, performance, or runtime errors.

6Which of the following is a typical finding from data flow analysis?

A.Memory leaks

B.Anomalies such as defining a variable but never using it (du anomaly)

C.Performance bottlenecks

D.Slow database queries

Explanation: Data flow analysis examines define/use pairs of variables. Common anomalies: 'dd' (defined twice without use), 'du' (defined but not used), 'ud' (used before defined). These are detected statically. Memory leaks and performance bottlenecks require dynamic analysis.

7Which security vulnerability is exploited when user input is included in SQL queries without proper sanitization?

A.Cross-site scripting (XSS)

B.SQL injection

C.Cross-site request forgery (CSRF)

D.Buffer overflow

Explanation: SQL injection occurs when user input is concatenated into SQL queries without parameterization or sanitization, allowing attackers to manipulate the query. It is a top OWASP vulnerability. Mitigation: parameterized queries (prepared statements), stored procedures with proper inputs, ORM frameworks.

8Which non-functional testing type is BEST for determining the maximum number of concurrent users a system can handle?

A.Stress testing

B.Load testing

C.Capacity testing

D.Recovery testing

Explanation: Capacity testing determines the maximum capacity the system can handle (e.g., max concurrent users, max transactions per second) while still meeting requirements. Load testing verifies behavior under expected load; stress testing pushes beyond capacity to observe failure modes; recovery testing checks recovery from failure.

9Which performance testing type pushes the system beyond its designed limits to observe failure behavior?

A.Load testing

B.Stress testing

C.Capacity testing

D.Smoke testing

Explanation: Stress testing intentionally exceeds the system's specified limits to observe how it fails — does it degrade gracefully? recover? lose data? This is critical for identifying weak points. Load testing operates within expected bounds; capacity testing finds the limit; smoke testing is basic functionality verification.

10Which OWASP vulnerability allows an attacker to execute scripts in a victim's browser?

A.SQL injection

B.Cross-site scripting (XSS)

C.Insecure deserialization

D.Broken authentication

Explanation: Cross-site scripting (XSS) allows attackers to inject malicious scripts into pages viewed by other users. Types: stored (persisted), reflected (immediate response), DOM-based (client-side only). Mitigation: input validation, output encoding, Content Security Policy (CSP), HTTPOnly cookie flag.

About the ISTQB CTAL-TTA Exam

The ISTQB Certified Tester Advanced Level — Technical Test Analyst (CTAL-TTA) certification validates advanced skills in technical, white-box, and non-functional testing. It covers risk-based testing (technical risk), white-box test design (statement, decision, condition, MC/DC, multiple condition, basis path), McCabe cyclomatic complexity, control and data flow analysis, static and dynamic analysis, security testing (OWASP — injection, XSS, CSRF, broken auth, security misconfig), reliability testing (MTBF, fault tolerance), efficiency testing (load, stress, capacity, scalability), maintainability and portability testing, and test tools (Selenium, JMeter, Gatling, JaCoCo, OWASP ZAP, BDD frameworks).

Exam sponsor: ISTQB / ASTQB / Pearson VUE or Kryterion. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

60 questions

Time Limit

120 minutes (180 min non-native)

Passing Score

65%

Exam / Certification Fees

$249-$299 USD

Exam sponsor website

Reported exam pass rate: ~50-60%. advanced exam — lower than Foundation pass rate This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Risk-Based Testing

Technical risk identification, analysis, mitigation specific to TTA — focus on code-level, security, performance, reliability risks

22%

Structure-Based (White-Box) Testing

Statement, decision, condition, decision/condition, MC/DC, multiple condition, path coverage, basis path testing, McCabe cyclomatic complexity

12%

Analytical Techniques (Static and Dynamic Analysis)

Control flow analysis, data flow analysis (def-use pairs, def-clear paths, anomalies), static analysis tools, dynamic analysis (memory leaks, wild pointers, performance profiling)

38%

Quality Characteristics for Technical Testing

Security testing (OWASP top 10 — injection, XSS, CSRF, broken auth), reliability (MTBF, fault tolerance, recovery), performance/efficiency (load, stress, capacity, scalability, endurance), maintainability, portability

Reviews

TTA's role in code reviews, architecture reviews, technical specification reviews using checklists for security, performance, maintainability

14%

Test Tools and Automation

Selenium, Cypress, Playwright, Appium, JMeter, Gatling, k6, Postman/REST Assured, OWASP ZAP, JaCoCo/Cobertura/Istanbul, SonarQube, BDD frameworks (Cucumber, SpecFlow), CI/CD integration

Preparing for the ISTQB CTAL-TTA Exam

What You Need to Know

Passing score: 65%
Exam length: 60 questions
Time limit: 120 minutes (180 min non-native)
Exam / certification fees: $249-$299 USD Official sources

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ISTQB CTAL-TTA: Suggested Study Strategy

1Master cyclomatic complexity calculation: V(G) = decisions + 1 (or E - N + 2P)

2Practice MC/DC carefully — for N conditions you need ~N+1 test cases, each showing one condition independently affects the outcome

3Memorize OWASP Top 10: injection, broken auth, sensitive data exposure, XXE, broken access control, security misconfig, XSS, insecure deserialization, vulnerable components, insufficient logging

4Know your performance test types: load (expected), stress (beyond limits), capacity (max), spike (sudden), endurance/soak (long duration), scalability (increasing load)

5Understand data flow analysis anomalies: dd, du, ud, ur and what each indicates

6Practice control flow graphs and basis path identification

7Get hands-on with tools: JMeter (performance), Selenium/Cypress/Playwright (UI), Postman/REST Assured (API), OWASP ZAP (security), JaCoCo (coverage), SonarQube (static analysis)

8Study ISO/IEC 25010 sub-characteristics, especially for security, reliability, performance efficiency, maintainability, portability

Frequently Asked Questions

What is the ISTQB CTAL-TTA exam?

The CTAL-TTA (Certified Tester Advanced Level — Technical Test Analyst) exam validates advanced skills in technical, white-box, and non-functional testing. It focuses on structure-based testing techniques (MC/DC, basis path), static and dynamic analysis, security testing (OWASP), performance/reliability/maintainability/portability testing, and technical test tools.

What are the prerequisites for CTAL-TTA?

ISTQB CTFL Foundation Level certification is required. Most boards (including ASTQB) recommend at least 18 months of practical testing experience, ideally with technical or non-functional testing exposure. Programming/coding familiarity is helpful since TTA covers white-box techniques.

How is CTAL-TTA different from CTAL-TA?

CTAL-TA (Test Analyst) focuses on FUNCTIONAL testing — black-box techniques, business rules, decision tables, use cases, ISO/IEC 25010 functional/usability characteristics. CTAL-TTA (Technical Test Analyst) focuses on TECHNICAL testing — white-box (MC/DC, basis path), code analysis, security, performance, reliability. Many testers earn both for comprehensive coverage.

What is the largest domain on CTAL-TTA?

Quality Characteristics for Technical Testing is the largest at approximately 38%. It covers security testing (OWASP — injection, XSS, CSRF, broken auth), performance/efficiency testing (load, stress, capacity, scalability), reliability (MTBF, fault tolerance), maintainability, and portability — all assessed using non-functional testing techniques.

How should I prepare for CTAL-TTA?

Plan for 60-100 hours of study over 6-12 weeks. Read the CTAL-TTA syllabus 2-3 times. Practice white-box techniques manually — calculate cyclomatic complexity, design MC/DC test cases, trace data flow. Study OWASP Top 10. Get hands-on with tools (JMeter, Selenium, JaCoCo). Complete 100+ practice questions and aim for 75%+. Coding background helps significantly.

Does the CTAL-TTA certification expire?

No — CTAL-TTA is valid for life with no renewal required. The 2024 syllabus update (from the 2019 version) adds modern security and DevOps content but holders of older versions retain their certification. Staying current with new tools and OWASP updates is recommended.

Free Practice Questions for ISTQB CTAL-TTA

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