Inchcape Shipping Services Senior Data Analyst Interview Questions and Answers

Spark join operation combines two datasets based on a common key.

• Join operation is performed on two RDDs or DataFrames.

• The common key is used to match the records in both datasets.

• There are different types of join operations like inner join, outer join, left join, right join.

• Join operation is an expensive operation and requires shuffling of data across the cluster.

• Example: val joinedData = data1.join(data2, data1("key"

A container is a standardized unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another.

• Containers are lightweight and portable.

• They allow for easy deployment and scaling of applications.

• They isolate applications from the underlying infrastructure.

• Examples of container technologies include Docker and Kubernetes.

Import and export refer to the movement of goods and services across international borders.

• Import is the process of bringing goods or services into a country from another country.

• Export is the process of sending goods or services from one country to another country.

• Import and export are important for international trade and economic growth.

• Examples of imported goods include electronics, clothing, and food products.

• Exam...read more