Vaidik Eduservices Technical Subject Matter Expert Interview Questions and Answers for Experienced

Q1. Causes of inflation
Ans. 
Causes of inflation include increase in demand, cost-push factors, and monetary factors.
• Increase in demand for goods and services

• Cost-push factors such as increase in production costs

• Monetary factors like increase in money supply

• External factors like exchange rates and oil prices
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Q2. What does government do to control inflation
Ans. 
Government controls inflation through monetary policy, fiscal policy, and regulation.
• Monetary policy involves adjusting interest rates to influence borrowing and spending.

• Fiscal policy involves government spending and taxation to manage demand in the economy.

• Regulation includes monitoring prices, wages, and competition to prevent excessive inflation.

• Examples: Central banks raising interest rates, government reducing sp
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Q1. Google meet round. Explain Oligopoly
Ans. 
Oligopoly is a market structure where a small number of firms dominate the industry, leading to limited competition.
• Oligopoly is characterized by a few large firms controlling the majority of the market share.

• These firms have significant market power, which allows them to influence prices and output.

• Entry into an oligopoly is difficult due to high barriers such as economies of scale, patents, and control over resources...read more
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Q1. Causes of inflation and what does the government do to control the situation?
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Inflation is caused by factors like demand-pull, cost-push, and monetary expansion. Government controls it through monetary policy, fiscal policy, and price controls.
• Causes of inflation include demand-pull (increased demand), cost-push (increased production costs), and monetary expansion (increased money supply)

• Government controls inflation through monetary policy (adjusting interest rates), fiscal policy (changing tax...read more
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Q1. Explain Oligopoly
Ans. 
Oligopoly is a market structure in which a small number of firms dominate the industry.
• Characterized by a few large firms controlling the majority of the market share

• High barriers to entry for new competitors

• Firms in oligopoly often engage in strategic pricing and marketing tactics

• Examples include the automobile industry, smartphone market, and airline industry
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Basic aptitude questions

Linked list, array, tree and graph questions

Q1. Short Introduction
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Q2. Experience and salary
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Q1. Introduce yourself
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Q2. Mock call & product pitch
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Q1. Basic Java, Spring, SQL And high level design scenario based
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Q2. What are the advantages of using Autowired in Spring, and can the Singleton pattern be utilized within the Spring framework?
Ans. 
Autowired simplifies dependency injection in Spring, promoting loose coupling and easier testing.
• Automatic Dependency Injection: Autowired automatically resolves and injects dependencies, reducing boilerplate code.

• Loose Coupling: Promotes a decoupled architecture, making it easier to swap implementations without changing the client code.

• Easier Testing: Facilitates unit testing by allowing mock dependencies to be inject...read more
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Q3. What actions can be taken to reduce Elasticsearch latency without modifying the code when latency increases?
Ans. 
Optimize Elasticsearch performance by adjusting settings and infrastructure without code changes.
• Increase the number of replicas to distribute search load, improving read performance.

• Adjust the refresh interval to reduce the frequency of index refreshes, which can lower latency during heavy write operations.

• Optimize shard allocation by ensuring shards are evenly distributed across nodes to prevent bottlenecks.

• Utilize c...read more
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Q4. Design pattern 1) factory 2) singleton 3) observer 4) Repository
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Q1. Tell me about yourself
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Q2. Prior experience of job
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Q3. Final results of interview
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Q1. Tell me about yourself
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Q2. Same question asked and a confirmation of selection
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