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I applied via Company Website and was interviewed in Aug 2024. There was 1 interview round.
Scaling a Django application involves optimizing performance, increasing capacity, and improving efficiency.
Use caching to reduce database queries and improve response times
Implement load balancing to distribute traffic evenly across multiple servers
Optimize database queries and indexes for faster data retrieval
Utilize asynchronous tasks for time-consuming operations
Horizontal scaling by adding more servers to handle i...
I handle code complexity by breaking down tasks, using design patterns, writing clean and modular code, and refactoring when necessary.
Break down tasks into smaller, manageable chunks
Utilize design patterns like MVC or MVVM to organize code
Write clean, readable, and modular code
Refactor code when it becomes too complex or difficult to maintain
Optimizing queries efficiently involves using indexes, limiting the number of columns retrieved, avoiding unnecessary joins, and optimizing the query structure.
Use indexes on columns frequently used in WHERE clauses
Limit the number of columns retrieved to only those needed
Avoid unnecessary joins by denormalizing data if possible
Optimize the query structure by using appropriate SQL functions and clauses
To get data from a NoSQL database in a fast and efficient manner, utilize indexing, denormalization, caching, and optimizing queries.
Utilize indexing to quickly locate and retrieve data.
Denormalize data to reduce the number of queries needed.
Implement caching mechanisms to store frequently accessed data.
Optimize queries by using appropriate query language and techniques.
Consider sharding or partitioning data for scalab...
The person can escape the island by creating a firebreak or finding a body of water.
Create a firebreak by clearing a path of grass around oneself to prevent the fire from spreading.
Look for a body of water such as a lake, river, or ocean to escape the fire.
If no water source is available, try to find a sheltered area with less dry grass to wait for the fire to pass.
Use any available tools or materials to help create a
Motors are rated in KW because they consume power, while transformers and generators are rated in KVA because they produce power.
Motors convert electrical energy into mechanical energy, so they consume power and are rated in KW.
Transformers and generators produce electrical energy, so they are rated in KVA based on their apparent power.
KVA takes into account both the real power (KW) and the reactive power (KVAR) produc...
The type of motor used in ceiling fans is an induction motor.
Ceiling fans typically use single-phase induction motors.
These motors are designed to provide a constant speed and are efficient in converting electrical energy into mechanical energy.
The motor consists of a stator and a rotor, with the stator being the stationary part and the rotor being the rotating part.
The stator contains windings that create a rotating m...
A thermal power plant generates electricity by converting heat energy into mechanical energy.
Thermal power plants use fossil fuels or nuclear energy to heat water and produce steam.
The steam drives a turbine, which is connected to a generator that produces electricity.
The heat source can be coal, natural gas, oil, or nuclear reactions.
The steam is condensed back into water and recycled in a closed-loop system.
Thermal p...
A program to generate a geometric progression (GP).
Take the first term, common ratio and number of terms as input.
Use a loop to calculate each term of the GP.
Print the generated GP as output.
A program to print factorial using recursion
Define a function to calculate factorial recursively
Base case: if the number is 0 or 1, return 1
Recursive case: multiply the number with factorial of (number - 1)
Print the factorial of a given number
Logic to reverse a string without using string functions
Iterate through the string from the last character to the first
Create a new string and append each character to it in reverse order
TCS
Accenture
Wipro
Cognizant