Deloitte Interview Questions, Process, and Tips

Q1. Explain the architecture & unique characteristics of Snowflake
Ans. 
Snowflake is a cloud-based data warehousing platform with unique features like separation of storage and compute, automatic scaling, and data sharing capabilities.
• Snowflake uses a unique architecture with separate layers for storage, compute, and services, allowing for independent scaling of each component.

• It uses virtual warehouses to separate compute resources, enabling users to scale up or down based on workload req...read more
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Q2. Define Time Travel and how it helps .
Ans. 
Time Travel in Snowflake allows users to query historical data as it existed at a specific point in time.
• Time Travel in Snowflake enables users to access and query data as it existed at a specific point in the past.

• It helps in auditing, compliance, and debugging by allowing users to track changes and view historical data.

• Users can specify a timestamp or a statement ID to retrieve data from a specific point in time.

• Time...read more
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Q3. How to set data retention time as 0 .
Ans. 
To set data retention time as 0 in Snowflake, you can use the ALTER TABLE command with the SET option.
• Use ALTER TABLE command with SET option to modify the data retention time to 0.

• Syntax: ALTER TABLE table_name SET DATA_RETENTION_TIME = 0;

• Example: ALTER TABLE sales SET DATA_RETENTION_TIME = 0;
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Q4. Explain Stages and stored procedure.
Ans. 
Stages are logical groupings of tasks in a data pipeline, while stored procedures are precompiled SQL code for repeated use.
• Stages are used to organize tasks in a data pipeline, such as extraction, transformation, and loading.

• Stored procedures are precompiled SQL code that can be reused multiple times for efficiency.

• Stages help in managing and monitoring the flow of data through different processing steps.

• Stored proced...read more
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Q1. Why snowflake is better than other cloud datawarehouse?
Ans. 
Snowflake offers unique architecture with separation of storage and compute, automatic scaling, and support for diverse workloads.
• Snowflake's architecture separates storage and compute, allowing for independent scaling and cost optimization.

• Snowflake automatically handles infrastructure management, reducing the need for manual tuning and maintenance.

• Snowflake supports diverse workloads, including data warehousing, data...read more
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Q2. Migration in Snowflake and the process
Ans. 
Migration in Snowflake involves moving data and objects from one environment to another using various methods.
• Use Snowflake's built-in tools like SnowSQL, Snowpipe, and Snowflake Data Migration Service for seamless migration

• Consider factors like data volume, complexity, and downtime requirements when planning migration

• Test the migration process thoroughly to ensure data integrity and consistency

• Monitor the migration pr...read more
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Q3. Ingestion Part in Snowflake
Ans. 
Ingestion in Snowflake involves loading data into the platform for analysis and processing.
• Use Snowflake's COPY INTO command to load data from external sources like S3, Azure Blob Storage, or Google Cloud Storage.

• Consider using Snowpipe for continuous data ingestion from streaming sources.

• Utilize Snowflake's Snowpark for data ingestion and processing using programming languages like Scala or Java.
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Q4. What are the connectors in Snowflake.
Ans. 
Connectors in Snowflake are used to integrate with various data sources and tools for seamless data loading and querying.
• Snowflake JDBC connector for connecting to Snowflake using Java applications

• Snowflake ODBC connector for connecting to Snowflake using ODBC-compliant applications

• Snowflake Python connector for connecting to Snowflake using Python scripts

• Snowflake Spark connector for integrating Snowflake with Apache ...read more
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Q5. What are the types of security in Snowflake?
Ans. 
Snowflake offers multiple layers of security including network security, data encryption, and access control.
• Network security: Snowflake uses Virtual Private Cloud (VPC) peering, IP whitelisting, and multi-factor authentication to secure network communication.

• Data encryption: Snowflake encrypts data at rest and in transit using industry-standard encryption algorithms.

• Access control: Snowflake provides role-based access...read more
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Q6. Tough SQL Questions
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Q1. Covering all Angular and front end concepts
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Q1. Angular Concepts and live coding
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Q1. Javascript concepts in-depth
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Table formats and health care services

Health coding test of Business perpuse

Quants verbal and data interpation with versant

Q1. About yourself, self introduction
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Q2. Questions about resume
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Q1. Different types of assert
Ans. 
Different types of assert include assert equals, assert true, assert false, assert not null, and assert not same.
• Assert equals: Compares two values for equality

• Assert true: Checks if a condition is true

• Assert false: Checks if a condition is false

• Assert not null: Verifies that a value is not null

• Assert not same: Verifies that two objects do not refer to the same object
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Q2. Different types of coats
Ans. 
There are various types of coats, including trench coats, pea coats, duffle coats, and overcoats.
• Trench coat

• Pea coat

• Duffle coat

• Overcoat
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Q1. Describe your job role and O2c process in details
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Q2. Can item having different ship set be of different inventory
Ans. 
Yes, items with different ship sets can be in different inventory
• Items with different ship sets can be stored in different locations or warehouses

• This allows for better organization and tracking of inventory

• For example, high-demand items can be stored in a warehouse closer to customers for faster shipping
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