Qualys Interview Questions and Answers

Q1. Sorting element in Array
Ans. 
Sorting elements in an array of strings
• Use built-in sorting functions like sort() in most programming languages

• Custom sorting can be implemented based on specific requirements

• Consider the case sensitivity and special characters while sorting
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Q2. Multithreading Question
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Q1. SQL Queries on Employee Table
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Q2. Asked Questions related to kafka
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Q1. How to handle cookies
Ans. 
Cookies should be handled securely to protect user privacy and prevent security risks.
• Always use secure and HttpOnly flags to prevent cross-site scripting attacks

• Set expiration dates for cookies to limit their lifespan

• Regularly review and update cookie policies to comply with privacy regulations

• Inform users about the use of cookies and provide options to manage their preferences
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Q1. What is Code Splitting
Ans. 
Code splitting is a technique used to split code into smaller chunks that can be loaded on demand.
• Code splitting helps improve performance by reducing initial load times.

• It allows for lazy loading of code, meaning only necessary code is loaded when needed.

• Commonly used in React applications with tools like React.lazy() and Suspense.
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Q2. Create an enqueue function that will give an enqueue dequeue peek and size
Ans. 
Create an enqueue function with enqueue, dequeue, peek, and size operations.
• Create a class Queue with an array to store elements.

• Implement enqueue method to add elements to the queue.

• Implement dequeue method to remove elements from the queue.

• Implement peek method to return the first element in the queue.

• Implement size method to return the number of elements in the queue.
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Q3. Find the names of students whose average marks are greater than 85
Ans. 
Filter students with average marks > 85
• Calculate average marks for each student

• Filter students with average marks > 85

• Return names of filtered students
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Q1. Vendor managment process
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Q2. How to relate invoice processing with RTR
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Technical MCQ questions related to linux and cyber security concepts

Q1. What's false positives and what is false negatives
Ans. 
False positives are incorrect alerts that are mistakenly identified as threats, while false negatives are actual threats that are missed by the system.
• False positives are alerts that are incorrectly identified as threats by a security system.

• False negatives are actual threats that are missed by the security system.

• False positives can lead to wasted time and resources investigating non-existent threats.

• False negatives c...read more
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Q2. Explain OSI model
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI model stands for Open Systems Interconnection model.

• It divides network communication into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and interacts with adjacent layers for data transmission.

• The mo...read more
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Q1. Tell me about your project
Ans. 
Developed a network monitoring tool to detect and prevent cyber attacks
• Designed and implemented a custom dashboard to visualize network traffic

• Utilized machine learning algorithms to detect anomalies in network behavior

• Integrated with SIEM tools for real-time threat detection

• Conducted regular penetration testing to assess the tool's effectiveness
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Q2. Phases while using terraform
Ans. 
Phases in using Terraform include initialization, planning, applying, and destroying.
• Initialization: Setting up Terraform environment with 'terraform init'

• Planning: Preview changes with 'terraform plan'

• Applying: Execute changes with 'terraform apply'

• Destroying: Remove resources with 'terraform destroy'
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Medium level data structure interview question

Q1. Was on sytem design. They asked to design s web crawler.
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Q1. Discussion with director. About past experience.
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Q2. Why looking for change ? What kind of work is there in qualys?
Ans. 
I am looking for change to explore new challenges and opportunities. Qualys offers a variety of work in cybersecurity and cloud security.
• Seeking new challenges and opportunities to grow professionally

• Interested in cybersecurity and cloud security

• Excited about the diverse range of projects at Qualys
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Q1. Cpp oops concepts
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Q2. Data structure question mostly asked
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Q1. Cpp question Multithreaded applications
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Q2. Data structure related question asked
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