Gray Routes Technology Interview Questions and Answers

Arithmetic, verbal, and verbal skills.

Please write a code for generating the Fibonacci sequence.

Q1. What are the key features and concepts of the C programming language?
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Q2. What is an array
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Q1. When would you be able to join?
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Q1. What is AML and primary and secondary research?
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Q1. Introducing your self and project
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Q2. Severity and priority
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Q3. Smoke and sanity testing
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Q4. Scenario base question if find bug before release
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Q1. You notice OSPF neighbors are stuck in the Exstart state. How would you troubleshoot this issue ?
Ans. 
To troubleshoot OSPF neighbors stuck in Exstart state, check for mismatched parameters, network connectivity issues, and potential network congestion.
• Verify OSPF parameters such as area ID, network type, and authentication match on both neighbors

• Check for network connectivity issues such as firewall blocking OSPF traffic or physical link problems

• Investigate potential network congestion causing packets to be dropped or ...read more
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Q2. If a BGP Session fails what steps would you take to troubleshoot the issue ?
Ans. 
To troubleshoot a failed BGP session, check the configuration, verify connectivity, analyze logs, and check for any network issues.
• Check BGP configuration for any errors or misconfigurations

• Verify connectivity between the BGP peers

• Analyze BGP logs for any error messages or warnings

• Check for any network issues such as routing problems or firewall blocking BGP traffic
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Q3. How would you diagnose a STP loop in a switches network ?
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Diagnosing a STP loop in a switches network involves checking for redundant links, analyzing STP configurations, and using network monitoring tools.
• Check for redundant links in the network that may be causing the loop.

• Analyze the STP configurations on the switches to ensure proper settings and priorities.

• Use network monitoring tools to identify the source of the loop and isolate the affected switches.

• Implement loop pre...read more
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Q1. Why are you leaving your current organization ?
Ans. 
Seeking new challenges and growth opportunities.
• Looking for a new challenge to further develop my skills and knowledge.

• Interested in exploring new technologies and methodologies.

• Seeking opportunities for career advancement and growth.

• Desire for a change in work environment or company culture.
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Q2. Are you comfortable with Night shifts ?
Ans. 
Yes, I am comfortable with night shifts as I have prior experience working during those hours.
• I have previous experience working night shifts in my previous roles.

• I am able to adjust my sleep schedule to accommodate night shifts.

• I understand the importance of being alert and focused during night shifts.

• I am willing to work night shifts as needed to support the team and operations.
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Q1. What is the default index type
Ans. 
B-tree index is the default index type in Oracle database.
• Default index type in Oracle is B-tree index

• B-tree index is suitable for range queries and equality searches

• Other index types in Oracle include bitmap index and function-based index
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Q2. What is the causes of query slowness
Ans. 
Causes of query slowness can include inefficient queries, lack of indexes, outdated statistics, hardware limitations, and network latency.
• Inefficient queries - poorly written queries that do not utilize indexes or join tables unnecessarily

• Lack of indexes - missing indexes on columns frequently used in queries

• Outdated statistics - outdated or inaccurate statistics can lead to poor query execution plans

• Hardware limitatio...read more
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Q3. How to resolve query slowness
Ans. 
To resolve query slowness, analyze query execution plan, optimize indexes, update statistics, consider partitioning.
• Analyze query execution plan to identify bottlenecks

• Optimize indexes to improve query performance

• Update statistics to ensure the query optimizer has accurate information

• Consider partitioning large tables to improve query performance
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Q1. Question about applications and possibilities.
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Q2. Questions about frameworks.
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Q3. Questions about past projects
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Two LLM based application development

Q1. What are closures in javascript
Ans. 
Closures in JavaScript are functions that have access to variables from their outer scope even after the outer function has finished executing.
• Closures allow for maintaining state in an asynchronous environment

• They are created whenever a function is defined within another function

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }
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Q1. Is NaN === NaN
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Q1. How do you handle stressful situations?
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I handle stressful situations by staying calm, prioritizing tasks, and seeking support when needed.
• I prioritize tasks to focus on what needs to be done first

• I take breaks to clear my mind and refocus

• I communicate with team members or supervisors for guidance and support

• I practice mindfulness techniques such as deep breathing or meditation
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Q1. Introduction yourself
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I am a dedicated PL/SQL developer with 5 years of experience in designing and implementing database solutions.
• Experienced in writing complex PL/SQL queries and stored procedures

• Proficient in performance tuning and optimization of SQL queries

• Skilled in database design and normalization principles

• Familiar with Oracle database technologies such as triggers and packages
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Q2. What is join and its types
Ans. 
Join is used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN returns all rows from the right table and the matched rows from the left table

• FULL JOIN r...read more
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