Altimetrik Interview Questions, Process, and Tips

HackersRank 2 questions

Q1. Context API's in react
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is useful for sharing global data such as themes, user authentication, or language preferences.

• Context API consists of three main parts: Provider...read more
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Q2. Hooks in react js
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Hooks in React JS are functions that let you use state and other React features without writing a class.
• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• Custom hooks are reusable functions that can contain ...read more
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Q1. COnteaxt API, Hooks, Redux etc
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Q2. React lifecycle and some basic sorting/searching alogo questions
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Q1. Most questions about jmeter
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Q1. Questions about overall work experience
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Q1. What are accumulators in spark?
Ans. 
Accumulators are shared variables that are updated by worker nodes and can be used for aggregating information across tasks.
• Accumulators are used for implementing counters and sums in Spark.

• They are only updated by worker nodes and are read-only by the driver program.

• Accumulators are useful for debugging and monitoring purposes.

• Example: counting the number of errors encountered during processing.
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Q2. Explain spark architecture
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Spark architecture is a distributed computing framework that consists of a driver program, cluster manager, and worker nodes.
• Spark architecture includes a driver program that manages the execution of the Spark application.

• It also includes a cluster manager that allocates resources and schedules tasks on worker nodes.

• Worker nodes are responsible for executing the tasks and storing data in memory or disk.

• Spark architectu...read more
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Q3. Write a query to find duplicate data using SQL
Ans. 
Query to find duplicate data using SQL
• Use GROUP BY and HAVING clause to identify duplicate records

• Select columns to check for duplicates

• Use COUNT() function to count occurrences of each record
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Q1. What is pub/sub?
Ans. 
Pub/sub is a messaging pattern where senders (publishers) of messages do not program the messages to be sent directly to specific receivers (subscribers).
• Pub/sub stands for publish/subscribe.

• Publishers send messages to a topic, and subscribers receive messages from that topic.

• It allows for decoupling of components in a system, enabling scalability and flexibility.

• Examples include Apache Kafka, Google Cloud Pub/Sub, and
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Q2. What services have you used in GCP
Ans. 
I have used services like BigQuery, Dataflow, Pub/Sub, and Cloud Storage in GCP.
• BigQuery for data warehousing and analytics

• Dataflow for real-time data processing

• Pub/Sub for messaging and event ingestion

• Cloud Storage for storing data and files
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Q1. My Profile is AzureDevOps and interviewer asked me questions on Jenkins and Groovy Scripting
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Q2. Interviewer is not aware of JD and my profile
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Q1. Technical knowledge on skills
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Q1. Fault tolerance and consistency
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Q1. Package discussion
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Q1. It was first technical round Asked about Functional, Non Functional testing, Integration, Regression, Smoke, Retesting, Performance, load, stress testing.
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Q2. Then he comes to selenium the question was how to navigate to other window in browser. Lastly asked me python program to print the number is prime or not.
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It haven't done. Tomorrow is my coding round. Hope it will go well

Q1. Not done yet. Will be conduct after the coding round.
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