Security and Privacy · #30 in series
Application Security Engineer interview prep
Top 100 interview questions for Application Security Engineer — modeled on real FAANG loops.
100
Questions
19
Topics
20
Free
General Security Concepts
5 questions1
What is the CIA triad and why is it important in application security?
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2
Explain the difference between authentication and authorization.
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3
What is the principle of least privilege and why is it important?
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4
How would you define and implement a secure software development lifecycle (SDLC)?
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5
What are some common security frameworks and standards you should be familiar with?
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Web Application Security
10 questions6
What is Cross-Site Scripting (XSS) and how can it be mitigated?
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7
Describe SQL Injection and how you would prevent it.
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8
What is Cross-Site Request Forgery (CSRF) and how can you protect against it?
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9
Explain the concept of Same-Origin Policy.
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10
What are HTTP security headers and why are they important?
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11
How can you secure cookies in a web application?
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12
Discuss the importance of input validation and output encoding.
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13
What is a Content Security Policy (CSP) and how does it help improve security?
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14
Explain the concept of session fixation and how to prevent it.
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15
What are some security concerns with single-page applications (SPAs)?
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Network Security
5 questions16
Explain the difference between TLS and SSL.
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17
How does a firewall work and what types would you recommend for web applications?
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18
What is a VPN and how does it enhance security?
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19
Describe how you would secure an API.
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20
What is a DDoS attack and how can you protect against it?
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Cryptography
5 questions21
What is the difference between symmetric and asymmetric encryption?
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22
Explain the purpose of hashing and how it is used in security.
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23
What are some common cryptographic algorithms you should be familiar with?
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24
How would you implement secure key management in an application?
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25
What is the role of digital certificates in securing communications?
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Threat Modeling and Risk Management
5 questions26
What is threat modeling and how would you perform it on an application?
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27
How do you prioritize security vulnerabilities in a system?
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28
Explain the concept of risk assessment and its importance in security.
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29
What is a zero-day vulnerability and how would you handle it?
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30
Describe how you would conduct a security audit or penetration test.
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Secure Coding Practices
5 questions31
What are some common secure coding standards?
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32
How would you implement input validation in a web application?
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33
Describe the importance of code reviews for security.
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34
What is buffer overflow and how can it be prevented?
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35
What is the importance of logging in security and how should it be implemented?
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Identity and Access Management (IAM)
5 questions36
Explain the concept of Single Sign-On (SSO).
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37
What is multi-factor authentication (MFA) and why is it important?
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38
How would you implement role-based access control (RBAC)?
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39
Discuss the importance of OAuth and OpenID Connect in modern applications.
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40
What are some best practices for managing user identities and access?
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Cloud Security
5 questions41
What are the main security concerns when using cloud services?
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42
How would you secure data in a multi-tenant cloud environment?
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43
Discuss the shared responsibility model in cloud security.
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44
What are some best practices for securing cloud applications?
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45
How would you handle data breaches in a cloud environment?
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Security Tools and Technologies
5 questions46
What tools do you use for static and dynamic code analysis?
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47
How would you use a web application firewall (WAF)?
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48
What is your experience with vulnerability scanners and which ones do you recommend?
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49
How do you stay updated with the latest security tools and technologies?
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50
Describe how you would use a SIEM (Security Information and Event Management) system.
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Incident Response and Forensics
5 questions51
What are the key components of an incident response plan?
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52
How do you conduct a post-mortem after a security incident?
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53
Explain the importance of forensics in security investigations.
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54
How would you handle a security breach in a production environment?
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55
What steps would you take to prevent future incidents after a breach?
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Regulatory and Compliance
5 questions56
What are some key regulations and compliance standards relevant to application security?
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57
How would you ensure compliance with GDPR in a web application?
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58
What is PCI DSS and how does it impact application security?
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59
How do you keep up with changes in security regulations?
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60
Describe how you would implement security policies to ensure compliance.
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DevSecOps
5 questions61
What is DevSecOps and how does it differ from traditional security practices?
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62
How would you integrate security into a CI/CD pipeline?
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63
What are some common DevSecOps tools you have used?
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64
How do you ensure security in agile development environments?
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65
Discuss the role of automation in DevSecOps.
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Mobile Application Security
5 questions66
What are some unique security challenges for mobile applications?
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67
How would you secure data storage on mobile devices?
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68
What are some common vulnerabilities in Android and iOS applications?
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69
Describe how you would conduct a security assessment for a mobile app.
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70
What are some best practices for securing mobile APIs?
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Container Security
5 questionsSecurity Culture and Education
5 questions76
How do you promote security awareness within an organization?
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77
What training methods do you recommend for educating developers about security?
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78
How do you measure the effectiveness of security training programs?
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79
Discuss the importance of building a security-first culture.
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80
How do you handle resistance to security measures from development teams?
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Emerging Threats and Trends
5 questions81
What are some emerging threats in application security?
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82
How do you stay informed about the latest security trends?
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83
What role does artificial intelligence play in application security?
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84
How would you address the security challenges of IoT devices?
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85
Discuss the impact of blockchain technology on application security.
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Soft Skills and Problem-Solving
5 questions86
Describe a time when you had to explain a complex security concept to a non-technical audience.
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87
How do you prioritize tasks when handling multiple security issues?
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88
Give an example of a challenging security problem you solved.
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89
How do you handle disagreements with team members regarding security practices?
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90
Describe a situation where you had to make a quick decision in a security incident.
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Personal Experience and Motivation
5 questions91
What motivates you to work in application security?
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92
Describe a project where you made a significant impact on the security posture.
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93
What is your approach to continuous learning in security?
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94
How do you handle stress and pressure in high-stakes security situations?
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95
What are your long-term career goals in the field of application security?
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Miscellaneous
5 questions96
What is the role of a bug bounty program in application security?
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97
How do you evaluate the security of third-party vendors?
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98
What is your experience with open source security tools?
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99
How would you secure a legacy application that cannot be easily updated?
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100
Describe how you would handle a situation where you discovered a vulnerability in a competitor’s product.
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