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Qualys Performance Engineer Interview Questions and Answers
Qualys Performance Engineer Interview Experiences
2 interviews found
Anonymous
I applied via LinkedIn and was interviewed in Apr 2021. There was 1 interview round.
Interview Questionnaire
9 Questions
- Q1. Jmeter scenario based questions.
- Q2. Programming Questions in any language like python Java javascript
- Q3. Oracle DB Architecture and AWR report analysis
- Q4. SQL queries medium complex
- Q5. Challenge in analysis
- Ans.
The challenge in analysis is to identify the root cause of performance issues.
Identify the performance metrics to be analyzed
Collect and analyze data from various sources
Use tools like APM, profiling, and monitoring tools
Identify patterns and anomalies in the data
Correlate the data to identify the root cause
Provide recommendations for improvement
- Q6. In second round, questions specific to roles and responsibilities.
- Q7. Linux commands and how can we monitor using Linux.
- Ans.
Linux commands for monitoring
top - displays system processes
htop - interactive process viewer
vmstat - virtual memory statistics
iostat - input/output statistics
netstat - network statistics
sar - system activity report
free - displays memory usage
df - displays disk space usage
ps - displays information about running processes
- Q8. How to analyze SQL Plan
- Ans.
SQL plan can be analyzed using tools like SQL Developer, SQL*Plus, or Oracle Enterprise Manager.
Use EXPLAIN PLAN to generate a query execution plan
Analyze the plan for potential performance issues
Look for full table scans, high cost operations, and missing indexes
Use SQL tuning tools to optimize the plan
Consider using hints to force a specific execution plan
- Q9. Basic Python code related to string manipulation and List manipulation.
Interview Preparation Tips
Medium level SQL queries expertise so that you can handle problem till joins.
Oracle Database architecture, importance of its various parts like SGA PGA
Prepare linux command and write some shell scripts to get confidence.
Apart from this definitely work on Jmeter scripting part -
Use of beanshell
Use of DWR call in case of API
And different complex scenarios.
Cheers, All the best.
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I applied via Naukri.com and was interviewed before Oct 2020. There were 5 interview rounds.
Interview Questionnaire
1 Question
- Q1. Technical questions related to angular,c# and sql
Interview Preparation Tips
I appeared for an interview in Sep 2020.
Interview Questionnaire
1 Question
- Q1. Oops concept, solid principles, filters in MVC, basics of Angular,life cycle hook
Interview Preparation Tips
I appeared for an interview in Sep 2019.
Interview Questionnaire
1 Question
- Q1. Pl sql related questions
Interview Preparation Tips
Laterly after I had lunch by 2pm Hr came n told me that Manager is not available now so we will be conducting ur further round in weekdays.
Then there was no mail or call so I purposely mailed them still haven't got proper response from them, so at last I told my friend who referd me to ask for an update the same HR told him that they want Immediate joiner so we can't process him to further round. Wasted my whole day over there
I applied via Recruitment Consultant and was interviewed before Jan 2020. There were 5 interview rounds.
Interview Questionnaire
1 Question
- Q1. What Prog Languages known? Prior Software Experience? How good on U.S. Client Face to Face and telephonic interaction for projects?
- Ans.
I am proficient in Java, Python, and C++. I have 2 years of experience in software development. I have excellent communication skills for client interaction.
Proficient in Java, Python, and C++
2 years of software development experience
Excellent communication skills for client interaction
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Oct 2020. There were 6 interview rounds.
Interview Questionnaire
1 Question
- Q1. Oops concepts with examples, SQL query to find second highest salary, diff between fail fast and fail safe, how did u implement security in your app, etc
Interview Preparation Tips
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Anything can be asked from oops to design pattern level question. Simple to hard. It's kind of rapid fire.
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed before Dec 2023. There were 4 interview rounds.
I applied via LinkedIn and was interviewed in Sep 2020. There was 1 interview round.
Interview Questionnaire
6 Questions
- Q1. Data structure and C++
- Q2. Reverse Linked list
- Q3. Multi threaded queue
- Q4. Design pattern
- Q5. Basic C++ concepts
- Q6. Puzzles
Interview Preparation Tips
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Qualys Performance Engineer Interview Process
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