Hexagon Interview Questions and Answers

GraphQL is a query language for APIs that allows clients to request only the data they need.

• GraphQL uses a schema to define the structure of the data available and the operations that can be performed.

• Clients can specify the exact data they need in their query, reducing over-fetching of data.

• GraphQL servers execute the query by resolving the requested data from various data sources.

• GraphQL supports real-time updat...read more

I have 5 years of experience in designing and implementing software architectures for large-scale applications.

• Designed microservices architecture for a cloud-based application, improving scalability and maintainability.

• Implemented event-driven architecture using Kafka for real-time data processing in a financial application.

• Utilized MVC architecture pattern for developing web applications, ensuring separation of ...read more

malloc is used to allocate memory without initializing it, while calloc is used to allocate memory and initialize it to zero.

• malloc allocates a block of memory of specified size, while calloc allocates a block of memory for an array of elements and initializes them to zero

• malloc does not initialize the allocated memory, while calloc initializes the allocated memory to zero

• malloc returns a pointer to the allocated ...read more

I have 2 years of experience as a SOC analyst, monitoring and analyzing security events and incidents.

• Monitored security events and incidents to identify potential threats

• Analyzed security alerts to determine the severity and impact of incidents

• Investigated security incidents to understand the root cause and recommend remediation actions

• Collaborated with cross-functional teams to respond to security incidents effe...read more

Structure is a data type that allows storing different types of data in a single variable, while union allows only one type of data. Structure padding is adding empty bytes to align data in memory.

• Structure can store different types of data in a single variable, while union can store only one type of data.

• Example: struct Person { char name[20]; int age; }; union Data { int num; float value; };

• Structure padding is ...read more