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10+ Cadmaxx Solutions Interview Questions and Answers

Updated 12 Aug 2024
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Q1. Types of call in cobol. What is file status 39. What is AICA in CICS. Why do we use cursor in Cobol+db2 program. What are some compiler options. What is the utility for bind. How would you dynamically read a vs...

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Ans.

Technical Lead interview questions on COBOL, DB2, and CICS

  • Types of call in COBOL

  • File status 39 indicates end-of-file reached

  • AICA is Abend-AID CICS Abend RSN (Reason) Code

  • Cursor is used to fetch rows from DB2 tables sequentially

  • Compiler options include OPTIMIZE, DEBUG, and LIST

  • BIND utility is used to bind DB2 programs to database

  • Dynamic VSAM file reading can be done using READNEXT function

  • -911 SQLCODE indicates deadlock or timeout error

  • Research organization before interview

  • Int...read more

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Q2. What are microservices and why it is used for .

Ans.

Microservices are a software architecture pattern where applications are built as a collection of small, loosely coupled services.

  • Microservices allow for modular development and deployment of applications.

  • Each microservice can be developed, deployed, and scaled independently.

  • Microservices communicate with each other through APIs.

  • They promote flexibility, scalability, and fault tolerance.

  • Examples of microservices include Netflix, Amazon, and Uber.

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Q3. Data blending, difference between extract and live data source

Ans.

Extract data source is a static snapshot while live data source is real-time data. Data blending combines data from multiple sources.

  • Extract data source is a subset of data from a larger data source that is saved as a static snapshot.

  • Live data source is real-time data that is directly connected to the source system.

  • Data blending combines data from multiple sources to create a unified view.

  • Extract data source is faster for large datasets while live data source provides real-ti...read more

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Q4. Javascript program solving techniques Angular frameworks Real time examples

Ans.

Javascript program solving techniques and real-time examples using Angular frameworks.

  • Use modular programming to break down complex problems into smaller, more manageable parts.

  • Use debugging tools to identify and fix errors in code.

  • Use event-driven programming to create responsive and interactive user interfaces.

  • Use data binding to keep the view and model in sync.

  • Examples: Creating a real-time chat application using Angular's WebSocket API, implementing a real-time stock tick...read more

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Q5. Explain data warehouse conceprs and used in your current project?

Ans.

Data warehouse is a central repository of data used for reporting and analysis.

  • Data is extracted from various sources and transformed to fit into the warehouse schema.

  • Data is organized into dimensions and facts for efficient querying.

  • Used for business intelligence and decision-making.

  • In my current project, we use a data warehouse to store and analyze customer behavior data.

  • We extract data from our website, mobile app, and CRM system and transform it to fit into our warehouse ...read more

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Q6. How to check production issue at app level

Ans.

To check production issues at the app level, one can use logging, monitoring tools, error tracking services, and user feedback.

  • Utilize logging to track errors and events in the application

  • Implement monitoring tools to keep track of performance metrics and system health

  • Use error tracking services like Sentry or Rollbar to receive real-time notifications of issues

  • Collect user feedback through surveys or support tickets to identify and prioritize issues

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Q7. Internal working of Hashmap and hashset

Ans.

Hashmap and hashset are data structures used to store and retrieve data efficiently.

  • Hashmap uses key-value pairs to store data and allows null values for both keys and values.

  • Hashset stores unique values and does not allow duplicates.

  • Both use hashing to locate and retrieve data quickly.

  • Hashmap is implemented using a hash table while hashset is implemented using a hash map.

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Q8. Dependency injection and its types

Ans.

Dependency injection is a design pattern that allows objects to be passed as dependencies rather than being created within a class.

  • Types of dependency injection include constructor injection, setter injection, and interface injection.

  • Constructor injection involves passing dependencies through a class's constructor.

  • Setter injection involves passing dependencies through a class's setter methods.

  • Interface injection involves implementing an interface that defines the necessary de...read more

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Q9. What is type in ts

Ans.

Type in TypeScript refers to the static type of a variable, function, or object.

  • Type in TypeScript helps catch errors at compile time by specifying the data type of variables.

  • Types in TypeScript include basic types like number, string, boolean, as well as custom types like interfaces and enums.

  • Example: let age: number = 25;

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Q10. What is interceptor

Ans.

An interceptor is a middleware component that intercepts incoming and outgoing HTTP requests in an application.

  • Interceptors can be used for logging, authentication, error handling, and modifying requests/responses.

  • In Angular, interceptors can be used to modify HTTP requests before they are sent to the server.

  • In Spring framework, interceptors can be used to intercept client requests and server responses.

  • Interceptors are commonly used in web development to add cross-cutting con...read more

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Q11. Runnable vs callable

Ans.

Runnable and Callable are interfaces in Java used for implementing multithreading.

  • Runnable interface is used for creating a thread and implementing the run() method.

  • Callable interface is used for creating a thread and returning a result using the call() method.

  • Runnable interface is simpler to use than Callable interface.

  • Callable interface can throw checked exceptions while Runnable interface cannot.

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Interview Process at Cadmaxx Solutions

based on 13 interviews
3 Interview rounds
Technical Round
HR Round - 1
HR Round - 2
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