50+ Associate Technical Consultant Interview Questions and Answers

Relational Database System is better for storing data than Excel.

• Excel is good for small datasets, but RDBMS is better for larger and more complex datasets.

• RDBMS allows for better data organization, querying, and analysis.

• Excel is prone to errors and data corruption, while RDBMS has built-in data integrity checks.

• RDBMS also allows for multiple users to access and modify data simultaneously.

• Examples of RDBMS include MySQL, Oracle, and SQL Server.

Join is faster than subquery. Views are used for data abstraction and security.

• Join is faster than subquery as it involves less I/O operations

• Subquery can be slower as it executes multiple times

• Functions can be slower than subquery or join depending on the complexity

• Views are used for data abstraction and security purposes

• Views can simplify complex queries and provide controlled access to data

A program to separate vowels and consonants from a string.

• Create two empty strings for vowels and consonants

• Loop through each character in the input string

• Check if the character is a vowel or consonant

• Append the character to the respective string

• Return the two strings

Multiple users can be given permission to delete user, user mod, and all permission by assigning them appropriate roles or groups.

• Create a role or group that has the necessary permissions for deleting users, modifying users, and all other permissions.

• Add the desired users to the role or group.

• Grant the role or group the necessary permissions to perform the required actions.

• Ensure that the users have the necessary access rights to the system or application where the permission...read more

Explain coding test questions through screen sharing for clarity and understanding.

• Start by introducing the problem statement clearly.

• Break down the problem into smaller parts for easier understanding.

• Use code comments to explain each section of the code.

• Run the code step-by-step to demonstrate how it works.

• Discuss edge cases and how the code handles them.

A program on floating numbers in Java.

• Declare a variable with float or double data type.

• Perform arithmetic operations on floating point numbers.

• Use formatting options to display floating point numbers.

• Be aware of precision and rounding errors.

Explanation of Function, Procedure, Trigger, Cursor and its types, and the use of Cursor in PL/SQL.

• Function is a subprogram that returns a value while a Procedure is a subprogram that does not return a value.

• Trigger is a special type of stored procedure that is automatically executed in response to certain events.

• Cursor is a database object that allows you to manipulate data row by row.

• There are two types of Cursor: Implicit and Explicit.

• Implicit Cursor is used by default whe...read more

Constructors are special methods used to initialize objects in a class.

• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• They can be used to set default values for object properties.

• Constructors can be overloaded to accept different parameters.

• Example: public class Car { public Car() { //default constructor } public Car(String make) { //overloaded constructor } }

To publish applications over the internet, one can use various methods such as cloud hosting, virtual private networks, or web servers.

• Choose a hosting provider or set up your own server

• Configure the server to run the application

• Secure the application with SSL/TLS certificates

• Use a domain name to make the application accessible

• Consider using a content delivery network (CDN) for faster access

• Examples: AWS, Azure, Google Cloud, Apache, Nginx

Reverse a string while keeping special characters in the same position.

• Iterate through the string and store special characters in a separate array.

• Reverse the string excluding special characters.

• Combine the reversed string with the special characters in their original positions.

Different types of constructors include default constructor, parameterized constructor, copy constructor, and constructor overloading.

• Default constructor: Constructor with no parameters.

• Parameterized constructor: Constructor with parameters.

• Copy constructor: Constructor that initializes an object using another object of the same class.

• Constructor overloading: Multiple constructors in a class with different parameters.

Hierarchical Inheritance is a type of inheritance where multiple derived classes inherit from a single base class.

• It allows for the creation of a class hierarchy with multiple levels of inheritance.

• The derived classes inherit all the properties and methods of the base class.

• Each derived class can add its own unique properties and methods.

• Example: A class Animal is the base class, and classes Dog, Cat, and Bird are derived classes that inherit from Animal.

• Example: A class Vehi...read more

Listen to their concerns, empathize, apologize, offer solutions, and follow up.

• Listen actively to understand their concerns

• Empathize with their frustration

• Apologize for any inconvenience caused

• Offer solutions to address their issues

• Follow up to ensure their satisfaction

• Stay calm and professional throughout the interaction

Advance level star pattern involves complex designs and shapes created using stars.

• The pattern can be created using nested loops and conditional statements

• Different shapes can be created by manipulating the loop conditions

• Examples include diamond pattern, pyramid pattern, and hollow square pattern

Supply chain management is the coordination and management of activities involved in the production and delivery of products and services.

• It involves the planning, sourcing, manufacturing, and delivery of products or services

• It aims to optimize the flow of goods and services from the supplier to the customer

• It includes managing inventory, transportation, and logistics

• Examples include Amazon's supply chain for delivering products to customers and Walmart's supply chain for man...read more

Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.

• Exceptions are objects that are thrown at runtime when an error occurs.

• Try block is used to enclose the code that might throw an exception.

• Catch block is used to handle the exception and provide a specific response.

• Finally block is used to execute code regardless of whether an exception is thrown or not.

• Example: try { // code that might throw exception } catch (Exception e) { // han...read more

AX 2012 and D365 are both ERP systems, but D365 is cloud-based and offers more advanced features.

• AX 2012 is an on-premise ERP system, while D365 is cloud-based

• D365 offers more advanced features such as AI and machine learning

• D365 has a more modern user interface and is more customizable

• D365 has a more frequent update cycle compared to AX 2012

• AX 2012 has a larger user base and more established community support

Remove duplicates from array of strings

• Create a Set to store unique strings

• Iterate through the array and add each string to the Set

• Convert the Set back to an array to get the unique strings

Joins are used in SQL to combine rows from two or more tables based on a related column between them.

• Inner Join: Returns rows when there is at least one match in both tables.

• Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.

• Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.

• Full Join (or Full Outer Join): Returns rows when there is a match in one of the t...read more

P2P cycle refers to the Procure-to-Pay cycle, which is the process of purchasing goods or services and paying for them.

• The cycle starts with identifying the need for a product or service.

• A purchase requisition is created and sent for approval.

• Once approved, a purchase order is generated and sent to the supplier.

• The supplier delivers the goods or services and sends an invoice.

• The invoice is matched with the purchase order and goods receipt.

• If everything matches, the invoice is...read more

The Fibonacci sequence is a series where each number is the sum of the two preceding ones, starting from 0 and 1.

• The sequence starts with 0 and 1: 0, 1, 1, 2, 3, 5, 8, 13, ...

• The nth Fibonacci number can be calculated using the formula: F(n) = F(n-1) + F(n-2).

• A simple recursive function can be used to generate Fibonacci numbers.

• An iterative approach is more efficient for larger n, using a loop to calculate the sequence.

• Dynamic programming can also be applied to store previous...read more

VPN stands for Virtual Private Network. There are mainly three types of VPN: Remote Access VPN, Site-to-Site VPN, and Extranet VPN.

• Remote Access VPN allows individual users to connect to a private network from a remote location.

• Site-to-Site VPN connects two or more networks together over the internet.

• Extranet VPN allows authorized external users to access a company's network.

• Other types of VPN include SSL VPN and MPLS VPN.

• SSL VPN uses SSL encryption to secure remote connectio...read more

SQL is a programming language used for managing and manipulating relational databases.

• SQL stands for Structured Query Language

• It is used to communicate with databases to perform tasks such as querying data, updating data, and creating tables

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL is used in various database management systems such as MySQL, PostgreSQL, Oracle

An Armstrong number is a number that is equal to the sum of its own digits raised to the power of the number of digits.

• An Armstrong number for a 3-digit number is a number such that: abc = a^3 + b^3 + c^3.

• Example: 153 is an Armstrong number because 1^3 + 5^3 + 3^3 = 153.

• For a 4-digit number, e.g., 1634: 1^4 + 6^4 + 3^4 + 4^4 = 1634.

• To check if a number is Armstrong, convert it to string to get the number of digits.

• Iterate through each digit, raise it to the power of the numbe...read more

Inheritance is the mechanism by which a class can inherit properties and behavior from another class, while polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Inheritance promotes code reusability and reduces redundancy.

• Polymorphism allows for flexibility ...read more

React is a JavaScript library for building user interfaces.

• React is used for creating interactive UI components.

• It uses a virtual DOM for efficient rendering.

• Virtual DOM is a lightweight copy of the actual DOM, allowing React to update only the necessary parts of the UI.

• This helps in improving performance and reducing unnecessary re-renders.

A brute force attempt is a trial-and-error method used to decode encrypted data by trying all possible combinations until the correct one is found.

• Brute force attempts are often used in password cracking, where every possible combination of characters is tried until the correct password is discovered.

• This method is time-consuming and resource-intensive, but can be effective if the password is weak or short.

• Brute force attacks can also be used in encryption decryption, where t...read more