Automatic Data Processing (ADP) Application Security Analyst Interview Questions and Answers

Q1. Springboot, java, javascript
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Q2. SQL plsql queries
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Q3. Project knowledge
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Asked quant and reasoning and English

Q1. What is normanlization
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Normalization involves breaking down data into smaller, more manageable tables

• It helps in reducing data redundancy by storing data in a structured manner

• Normalization ensures data integrity by minimizing data anomalies

• There are different normal forms such as 1NF, 2NF, 3NF, BCNF, etc.
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Q2. Types of normalisation
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Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• Types of normalization include 1NF, 2NF, 3NF, BCNF, and 4NF.

• 1NF (First Normal Form) ensures that each column contains atomic values.

• 2NF (Second Normal Form) eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the primary key.

• 3NF (Third Normal Form) eliminates t...read more
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Q1. Difference between class & interface
Ans. 
Classes can have both implementation and data members, while interfaces can only have method signatures.
• Classes can have constructors, interfaces cannot.

• Classes can have access modifiers for their members, interfaces cannot.

• A class can implement multiple interfaces, but can only inherit from one class.

• Interfaces are used to achieve abstraction and multiple inheritance in Java.

• Example: Class 'Animal' can have methods li...read more
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Q1. About current project
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Q1. Explain the concept of multithreading and how is it differ from multiprocessing
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Multithreading allows multiple threads to exist within the context of a single process, while multiprocessing involves multiple processes running concurrently.
• Multithreading allows multiple threads to share the same memory space and resources of a single process, while multiprocessing involves separate memory space for each process.

• Multithreading is more lightweight and efficient compared to multiprocessing as threads ...read more
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Q1. Explain react dom in details
Ans. 
React DOM is a package that provides methods for updating the DOM in response to React components.
• React DOM is used to render React components to the DOM.

• It provides methods like ReactDOM.render() to render components.

• React DOM efficiently updates the DOM when the state of a component changes.

• It handles events and updates the DOM accordingly.

• React DOM is separate from React itself, allowing for flexibility in rendering
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Q2. Explain MVC in rails
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MVC in Rails is a software design pattern that separates the application into three main components: Model, View, and Controller.
• Model: Represents the data and business logic of the application.

• View: Represents the user interface of the application.

• Controller: Acts as an intermediary between the Model and View, handling user input and updating the Model accordingly.

• Example: In a Rails application, a User model would ha...read more
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Q1. Stacks queues data structures
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Q1. 2nd largest element in array
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Find the 2nd largest element in an array of strings.
• Sort the array in descending order

• Access the element at index 1 to get the 2nd largest element
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Q2. Top view of given binary tree
Ans. 
To get the top view of a binary tree, we need to find the nodes that are visible when looking at the tree from the top.
• Start from the root node and assign it a horizontal distance of 0.

• Traverse the tree using a queue and keep track of the horizontal distance of each node.

• For each horizontal distance, only keep the node with the smallest level in the result.

• Repeat the process for left and right child nodes, updating the
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Q1. Questions related to iOS and swift basics
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Q2. Design NotificationCenter
Ans. 
NotificationCenter is a system that enables communication between different parts of an application.
• NotificationCenter allows components of an application to communicate without having direct references to each other.

• It uses the observer pattern where objects register themselves as observers for specific notifications.

• Notifications can be posted to the NotificationCenter with optional data.

• Observers can then receive an...read more
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Q1. Design twitter feed & solid principles
Ans. 
Design a Twitter feed using SOLID principles
• Separate classes for each responsibility (Single Responsibility Principle)

• Use interfaces to define behavior and allow for easy swapping of implementations (Open/Closed Principle)

• Dependency Injection to decouple components and make testing easier (Dependency Inversion Principle)

• Liskov Substitution Principle to ensure derived classes can be substituted for their base classes wi...read more
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Q1. It was hiring manger rounds .. Behavioural questions
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Q2. First occurence of given number in sorted array
Ans. 
Find the first occurrence of a given number in a sorted array.
• Use binary search to efficiently find the first occurrence of the number.

• Keep track of the index of the first occurrence as you search through the array.

• Return the index of the first occurrence once found.
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Q1. Project explanation,security concept question,integration basics,what are debug logs
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Q2. Lwc lifecycle hooks and one trigger to code
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