10+ Zoho Interview Questions and Answers

I am highly skilled in automating infrastructure using scripting and coding.

• Proficient in scripting languages like Python, Bash, and PowerShell

• Experience in using configuration management tools like Ansible and Chef

• Familiarity with cloud platforms like AWS and Azure and their automation tools

• Implemented infrastructure as code using tools like Terraform

• Automated deployment pipelines using tools like Jenkins and GitLab CI/CD

• Examples: Wrote Python scripts to automate AWS EC2 ins...read more

The inner join of two tables with duplicate values results in a combined set of common values.

• Inner join combines rows from both tables where the key columns match

• In this case, the result would be [1,1,1,1,1,1] as all values are common in both tables

Incident, problem, and change management are processes used in IT to handle unexpected events, identify root causes of issues, and implement modifications to systems.

• Incident management involves responding to and resolving unexpected events that disrupt normal operations, such as system crashes or network outages.

• Problem management focuses on identifying the root causes of recurring incidents to prevent them from happening again in the future.

• Change management is the process ...read more

SQL is a relational database management system, while NoSQL is a non-relational database management system.

• SQL databases are table-based, NoSQL databases are document, key-value, graph, or wide-column stores

• SQL databases use structured query language for defining and manipulating data, NoSQL databases use different query languages

• SQL databases are vertically scalable, NoSQL databases are horizontally scalable

• SQL databases are good for complex queries, NoSQL databases are bett...read more

Designed and implemented a real-time data pipeline for processing and analyzing user behavior data.

• Used Apache Kafka for real-time data streaming

• Utilized Apache Spark for data processing and analysis

• Implemented data transformations and aggregations using Scala

• Stored processed data in a data warehouse like Amazon Redshift

• Built monitoring and alerting systems to ensure data pipeline reliability

NoSQL is better for handling unstructured data, providing scalability and flexibility.

• NoSQL databases are better suited for handling unstructured data like social media posts, user-generated content, and IoT data.

• NoSQL databases provide better scalability as they can easily distribute data across multiple servers, allowing for horizontal scaling.

• NoSQL databases offer more flexibility in terms of data model, allowing for schema-less design and easier adaptation to changing dat...read more

Difference between Spark df, rdd, ds and configuration setup

• Spark df is a distributed collection of data organized into named columns

• RDD is a fault-tolerant collection of elements that can be processed in parallel

• DS is a type-safe version of df that provides compile-time type safety

• Configuration setup involves setting up Spark properties like memory allocation, parallelism, etc.

• Example: df.select('column').groupBy('column').agg({'column': 'sum'})

• Example: rdd.map(lambda x: x*2...read more

Release management is the process of planning, scheduling, coordinating, and deploying software releases.

• It involves identifying the scope of the release and the features to be included

• Creating a release plan and schedule

• Coordinating with different teams involved in the release process

• Testing the release to ensure it meets quality standards

• Deploying the release to production

• Monitoring the release to ensure it is stable and functioning as expected

• Managing any issues or bugs th...read more

Incident is an unplanned event that disrupts normal operations, while a problem is the underlying cause of one or more incidents.

• Incident is a specific event that causes disruption, problem is the root cause of incidents

• Incidents are usually resolved quickly, problems require investigation and resolution to prevent future incidents

• Problems are often identified through recurring incidents

Developed a web application for tracking and managing project tasks

• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express

• Utilized MongoDB for database management

• Incorporated authentication and authorization features for user security

Multithreading in Java allows for concurrent execution of multiple threads within a single program.

• Multithreading can improve performance by allowing multiple tasks to be executed simultaneously.

• Java provides built-in support for multithreading through the Thread class and Runnable interface.

• Synchronization is important to prevent race conditions and ensure thread safety.

• Examples of multithreading in Java include GUI applications, server applications, and parallel processing....read more