Devops Security Interview Questions

Checkout Vskills Interview questions with answers in DevOps Security to prepare for your next job role. The questions are submitted by professionals to help you to prepare for the Interview.

Q.1 What is DevSecOps security?

DevSecOps is short for development, security and operations. Its mantra is to make everyone accountable for security with the objective of implementing security decisions and actions at the same scale and speed as development and operations decisions and actions.

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Q.2 Why security is important in DevOps?

Security in DevOps It can help to identify threats, infrastructural issues, problematic code, and dangerous vulnerabilities. Most importantly, it can help to ensure that security measures match the speed of DevOps practices.

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Q.3 How DevOps increases System Security?

DevOps increases System Security by scanning container or VM images for known software vulnerabilities, failing the builds that contain known problematic packages and running static analysis tools for calls to potentially dangerous system calls and fail builds accordingly.

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Q.4 How secure is project data in Azure DevOps?

The project data stored within Azure DevOps is only as secure as the end-user access points. It's important to match the level of permission strictness and granularity for those organizations with the level of sensitivity of your project.

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Q.5 What is the difference between DevOps and DevSecOps?

DevOps includes practices and methodologies including continuous integration/ continuous delivery (CI/CD), building microservices, and using infrastructure as code. DevSecOps adds in threat modeling, vulnerability testing, and incident management.

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Q.6 Is Kubernetes secure?

Kubernetes provides in-built security advantages. For example, application containers are typically not patched or updated — instead, container images are replaced entirely with new versions. This enables strict version control and permits rapid rollbacks if a vulnerability is uncovered in new code.

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Q.7 What refers to DevOps security?

DevOps security refers to the discipline and practice of safeguarding the entire DevOps environment through strategies, policies, processes, and technology.

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Q.8 Which stage of DevOps should security be built?

Security should be built into every part of the DevOps lifecycle, including inception, design, build, test, release, support, maintenance, and beyond.

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Q.9 Is DevOps an agile methodology?

DevOps is an extension of agile built around the practices that are not in agile's focus. When used together, both practices improve software development and lead to better products.

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Q.10 What is Kubernetes security?

Kubernetes security is an open-source system for automating the deployment, scaling, and management of containerized applications. It is easier to manage, secure, and discover containers when they are grouped into logical units, and Kubernetes is the leading container management system in the market today.

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Q.11 Is Kubernetes secure by default?

Kubernetes expects that all API communication in the cluster is encrypted by default with TLS, and the majority of installation methods will allow the necessary certificates to be created and distributed to the cluster components.

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Q.12 What is DevOps agile?

DevOps is an approach to software development that enables teams to build, test, and release software faster and more reliably by incorporating agile principles and practices, such as increased automation and improved collaboration between development and operations teams.

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Q.13 What is GitLab security?

GitLab security is security capabilities, integrated into your development lifecycle. GitLab provides Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), Container Scanning, and Dependency Scanning to help you deliver secure applications along with license compliance.

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Q.14 What do you understand by container security?

Container security is the use of security tools and policies to protect the container, its application and performance including infrastructure, software supply chain, system tools, system libraries, and runtime against cyber security threats.

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Q.15 How will you provide security to Kubernetes Deployment?

Various measures are needed to provide security to Kubernetes Deployment which includes: enable Role-Based Access Control (RBAC), protect ETCD with TLS and Firewall, isolate Kubernetes Nodes, monitor Network Traffic to Limit Communications, use Process Whitelisting and turn on Audit Logging.

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Q.16 Is Kubernetes traffic encrypted?

Kubernetes does not encrypt any traffic. There are servicemeshes like linkerd that allow you to easily introduce https communication between your http service. You would run a instance of the service mesh on each node and all services would talk to the service mesh.

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Q.17 What do you understand by fuzz based testing?

In the world of cybersecurity, fuzz testing (or fuzzing) is an automated software testing technique that attempts to find hackable software bugs by randomly feeding invalid and unexpected inputs and data into a computer program in order to find coding errors and security loopholes.

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Q.18 What do you understand by DAST?

DAST, Dynamic Application Security Testing, is a web application security technology that finds security problems in the applications by seeing how the application responds to specially crafted requests that mimic attacks.

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Q.19 Does Kubernetes need antivirus?

Antivirus may be advantageous in a Kubernetes environment, especially those running on Windows OS. Anti-malware or antivirus in a Kubernetes environment may help avert potential attacks identifying, reporting, and isolating malicious files in the Kubernetes environment.

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Q.20 Do I need https inside Kubernetes?

If you need to use the features that you API Gateway is offering (authentication, cache, high availability, load balancing) then YES, otherwise DON'T. The External facing API should contain only endpoints that are used by external clients (from outside the cluster).

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Q.21 What is API Fuzzing?

Web API fuzzing performs fuzz testing of API operation parameters. Fuzz testing sets operation parameters to unexpected values in an effort to cause unexpected behavior and errors in the API backend to discover bugs and potential security issues that other QA processes may miss.

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Q.22 What is GREY box Fuzzing?

Greybox fuzzing is an automated test-input generation technique that aims to uncover program errors by searching for bug-inducing inputs using a fitness-guided search process. That is, they regard a test input that covers a new region of code as being fit to be retained.

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Q.23 What is Fuzzing in security?

Fuzzing is an effective method to identify bugs and security vulnerabilities in software. It identifies the stages and memory interfaces from program binaries, and fuzzes later stages of the program effectively.

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Q.24 Why do a DAST scan?

A DAST test can look for a broad range of vulnerabilities, including input/output validation issues that could leave an application vulnerable to cross-site scripting or SQL injection. A DAST test can also help spot configuration mistakes and errors and identify other specific problems with applications.

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Q.25 What are TLS protocols?

Transport Layer Security (TLS) is the most widely used protocol for implementing cryptography on the web. TLS uses a combination of cryptographic processes to provide secure communication over a network. TLS provides a secure enhancement to the standard TCP/IP sockets protocol used for Internet communications.

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Q.26 Is SAST white box testing?

Static application security testing (SAST) is a white box method of testing. It examines the code to find software flaws and weaknesses such as SQL injection and others listed in the OWASP Top 10.

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Q.27 What is DAST in Devops?

Dynamic Application Security Testing (DAST) is the process of analyzing a web application through the front-end to find vulnerabilities through simulated attacks. This type of approach evaluates the application from the “outside in” by attacking an application like a malicious user would.

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Q.28 What is DevOps SAST?

Static application security testing (SAST) is the process of examining source code for security defects. SAST is one of the many checks in an application security assurance program designed to identify and mitigate security vulnerabilities early in the DevSecOps process.

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Q.29 Why do you want to work as DevOps Security Professional at this company?

Working as DevOps Security Professional at this company offers me more many avenues of growth and enhance my DevOps security skills. Your company has been providing security and devOps security related services to across the globe and hence offers opportunities for future growth in devOps security. Also considering my education, skills and experience I see myself, more apt for the post.

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Q.30 Why do you want the DevOps Security Professional job?

I want the devOps security professional job as I am passionate about making companies more secured and efficient by using DevOps technologies and also better using the present technology portfolio to maximize their utility.

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