10+ Concentrix Corporation Interview Questions and Answers

Answers to SQL Server and OOP related questions for Senior Developer position.

• Candidate key is a unique identifier for a row in a table, while super key is a set of columns that can uniquely identify a row.

• Join combines data from two or more tables based on a related column, while subquery is a query within another query.

• Abstraction can be achieved by creating abstract classes or interfaces that define common properties and methods for related classes.

• Yes, we can write static...read more

Mulesoft is an integration platform that connects applications, data, and devices.

• Munit is a testing framework for Mulesoft applications.

• Runtime Manager is a cloud-based platform for managing Mulesoft applications.

• Scaling refers to the ability of Mulesoft to handle increased traffic and workload.

• RAML is a language used to define APIs in a human-readable format.

I have worked on various connectors including REST, SOAP, JDBC, and JMS.

• I have experience working with REST APIs and building RESTful web services.

• I have worked with SOAP APIs and have experience in creating SOAP-based web services.

• I have worked with JDBC connectors and have experience in connecting to databases using JDBC drivers.

• I have experience working with JMS and have implemented messaging systems using JMS.

• I have also worked with other connectors such as FTP, SFTP, and...read more

To run a Java program using command line, use the 'java' command followed by the name of the class containing the main method.

• Navigate to the directory containing the .class file

• Type 'java' followed by the name of the class containing the main method

• Include any necessary command line arguments after the class name

• Press enter to run the program

• Example: java MyProgram arg1 arg2

Routing is the process of selecting a path for network traffic to travel.

• Routing is used in networking to determine the best path for data to travel between devices.

• It involves analyzing the network topology and selecting the most efficient path.

• Routing protocols like OSPF and BGP are used to automate the process.

• Exception handling is the process of dealing with errors and exceptions in code.

• It involves catching and handling errors to prevent the program from crashing.

• Try-cat...read more

Classloader is a part of JVM that loads classes into memory. It has three types: Bootstrap, Extension, and Application.

• Classloader loads classes into memory when they are needed by the program

• Bootstrap classloader loads core Java classes from the JDK's rt.jar file

• Extension classloader loads classes from the JDK's lib/ext directory

• Application classloader loads classes from the classpath of the application

• Classloader follows delegation model to load classes

Mulesoft is an integration platform that connects applications, data, and devices.

• Mulesoft is used for building APIs and integrating different systems

• It provides a unified platform for managing APIs, integrations, and analytics

• Mulesoft uses Anypoint Studio for development and deployment

• It supports various protocols and data formats including REST, SOAP, JSON, and XML

• Mulesoft offers pre-built connectors for popular applications and services such as Salesforce, SAP, and AWS

Web API uses attribute routing and convention-based routing for routing mechanism.

• Web API uses attribute routing to define routes directly on the controller actions or at the controller level.

• Convention-based routing is based on the naming conventions of the controller and action methods.

• Attribute routing allows for more control over the URIs and is preferred for complex routing scenarios.

Batch job is a process of executing a series of jobs in a batch mode. Scatter gather is a technique of parallel processing.

• Batch job is used for processing large volumes of data in a batch mode.

• Scatter gather is used for parallel processing of data across multiple nodes.

• Batch job is sequential in nature while scatter gather is parallel.

• Batch job is commonly used in ETL processes while scatter gather is used in distributed computing.

• Example of batch job is processing payroll f...read more

Hashmap and Hashtable are both used to store key-value pairs, but Hashtable is synchronized and slower than Hashmap.

• Hashmap is not synchronized and allows null keys/values.

• Hashtable is synchronized and does not allow null keys/values.

• Hashmap is faster than Hashtable.

• Hashmap is preferred for non-threaded applications.

• Hashtable is preferred for threaded applications.

• Example: HashMap map = new HashMap<>();

• Example: Hashtable table = new Hashtable<>();

Hashmap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.

• Hashmap uses an array to store the key-value pairs

• The key is hashed to find the index in the array where the value is stored

• If two keys hash to the same index, a linked list is used to store multiple values

• Hashmap uses load factor to determine when to resize the array

• Hashmap provides constant time complexity for insertion, deletion, and retrieval

A defect is an error or flaw in a software application that causes it to behave unexpectedly or not as intended.

• Defects can be caused by coding errors, design flaws, or environmental factors.

• Defects can lead to system crashes, data corruption, or security vulnerabilities.

• Examples of defects include syntax errors, logic errors, and performance issues.

• Defects can be identified through testing, debugging, and code reviews.

Secure property refers to a property that is protected from unauthorized access or modification.

• Secure property can be achieved through encryption, access control, and authentication.

• Examples of secure properties include passwords, financial information, and personal data.

• Secure property is important for maintaining privacy and preventing data breaches.

Goroutines are lightweight threads managed by the Go runtime, allowing concurrent execution of functions.

• Goroutines are created using the 'go' keyword followed by a function call.

• They are multiplexed onto multiple OS threads by the Go runtime.

• Goroutines communicate using channels to share data safely.