300+ Technology Analyst Interview Questions and Answers

Parameters are used to define values in a report, while filters are used to limit the data displayed in a report.

• Parameters are used to make a report more dynamic by allowing users to input values such as dates or names.

• Filters are used to limit the data displayed in a report based on specific criteria such as date range or product type.

• Parameters are set before a report is run, while filters can be applied during or after a report is run.

• Examples of parameters include start ...read more

Creating relationships between tables in JPA using entities

• Use annotations such as @ManyToOne, @OneToMany, @OneToOne, and @ManyToMany to define relationships

• Specify the target entity and the mapping column using @JoinColumn

• Use the mappedBy attribute to specify the inverse side of the relationship

• Example: @ManyToOne(targetEntity = Author.class) @JoinColumn(name = "author_id") private Author author;

• Example: @OneToMany(mappedBy = "author") private List books;

The @primary annotation is used to mark a primary key in a database table.

• It is used in database design to indicate the primary key of a table

• It is often used in conjunction with other annotations such as @Entity and @Id

• It can be used to specify the name of the primary key column

• Example: @Entity @Table(name = "users") public class User { @Id @GeneratedValue @Column(name = "user_id") private Long id; }

Parameterised constructor executes first if called explicitly, else default constructor.

• If an object is created without any arguments, default constructor executes first.

• If an object is created with arguments, parameterised constructor executes first.

• Explicitly calling parameterised constructor will execute it first.

There are two types of constructors in .Net: Default and Parameterized.

• Default constructors are used to create an object with default values.

• Parameterized constructors are used to create an object with custom values.

• Parameterized constructors can have multiple parameters.

• Example: public class Person { public Person(string name, int age) { this.Name = name; this.Age = age; } }

Identify and resolve memory leaks through systematic analysis and debugging techniques.

• Monitor memory usage over time using tools like VisualVM or JProfiler to identify abnormal growth patterns.

• Use profiling tools to analyze heap dumps and identify objects that are not being released, such as in Java applications.

• Review code for common memory leak patterns, such as static collections holding references to objects or listeners not being removed.

• Implement automated tests that s...read more

Some alternatives for the tech stack mentioned above could be React Native for mobile development, Django for backend, and PostgreSQL for database.

• React Native for cross-platform mobile development

• Django for backend development

• PostgreSQL for database management

Encountered critical P1 and P2 issues in Citrix related to performance and connectivity affecting user experience.

• P1 Issue: High latency during peak hours, causing significant delays in application response times.

• P2 Issue: Intermittent disconnections from the Citrix environment, impacting user productivity.

• Example of P1: Users reported a 10-second delay when launching applications, which was traced back to network congestion.

• Example of P2: Affected users experienced random lo...read more

Abstract class is a class that cannot be instantiated and Interface is a blueprint of a class.

• Abstract class can have both abstract and non-abstract methods while Interface can only have abstract methods.

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

• Abstract class can have constructors while Interface cannot.

• Example of Abstract class: Animal (abstract method: makeSound())

• Example of Interface: Runnable (abstract method: run())

Memory allocation in recursion involves creating a new stack frame for each recursive call.

• Each recursive call creates a new stack frame to store local variables and function parameters.

• Memory is allocated on the stack for each stack frame, which can lead to stack overflow if too many recursive calls are made.

• Once a recursive call returns, its stack frame is deallocated to free up memory.

• Example: Factorial function recursively calls itself to calculate the factorial of a numb...read more

Program to sort an array in descending order with minimum lines of code

• Use built-in sort function with reverse parameter

• Alternatively, use a lambda function with sorted() method

• Both methods can be implemented in one line of code

MCS are frameworks for managing organizational performance, while PVS assess and value that performance.

• MCS helps in aligning organizational goals with operational activities.

• Examples of MCS include budgeting systems, performance measurement systems, and strategic planning.

• PVS focuses on quantifying performance outcomes, often using metrics like ROI or KPIs.

• An example of PVS is a balanced scorecard that evaluates financial and non-financial performance indicators.

Citrix PVS store contains essential files for managing virtual disk images and configurations.

• vDisk files (.vhd or .vhdx) - These are the virtual hard disk files used by the target devices.

• Configuration files - These include settings for vDisk and target device configurations.

• Boot files - Necessary files for booting the virtual machines, such as boot loader files.

• Snapshot files - Used for maintaining different versions of vDisks for updates or rollbacks.

• Log files - These file...read more

Citrix Director is a web-based management console for monitoring and troubleshooting Citrix environments.

• Provides real-time monitoring of user sessions and resource usage.

• Enables administrators to troubleshoot issues with virtual desktops and applications.

• Offers detailed analytics and reporting on performance metrics.

• Allows for user session management, including logoff and shadowing capabilities.

• Integrates with Citrix Analytics for enhanced insights into user behavior.

Upgrading Citrix MCS involves planning, preparing, and executing the upgrade while ensuring minimal disruption to services.

• 1. Review the release notes for the new version to understand new features and changes.

• 2. Backup existing configurations and data to prevent loss during the upgrade.

• 3. Test the upgrade process in a staging environment to identify potential issues.

• 4. Schedule the upgrade during off-peak hours to minimize impact on users.

• 5. Execute the upgrade using the Cit...read more

Versioning Citrix vDisk in PVS involves creating, managing, and deploying different versions of virtual disks for efficient updates.

• Create a new version of the vDisk by selecting the existing vDisk and using the 'Version' option in the PVS console.

• Use the 'Edit' option to modify settings or configurations in the new version without affecting the original.

• Deploy the new version to target devices while keeping the previous version available for rollback if needed.

• Example: If a ...read more

Exception handling is crucial for any application. Spring Boot provides various ways to handle exceptions globally.

• Spring Boot provides @ControllerAdvice annotation to handle exceptions globally

• Exception handling can be done using @ExceptionHandler annotation

• Spring Boot also provides a default error page for unhandled exceptions

• Custom error pages can be created using ErrorController interface

Different types of method declaration in C#

• Static method - declared with 'static' keyword and can be called without creating an instance of the class

• Instance method - declared without 'static' keyword and can only be called on an instance of the class

• Async method - declared with 'async' keyword and can be used to perform asynchronous operations

• Extension method - declared with 'this' keyword and can be called as if it is a member of the extended class

• Partial method - declared ...read more

Explanation of terms in public static void main (string args[])

• public: Access modifier indicating that the method can be accessed from anywhere

• static: Keyword indicating that the method belongs to the class and not to an instance of the class

• void: Return type indicating that the method does not return any value

• main: Method name, the entry point of the program

• string[] args: Parameter of the method, an array of strings that can be passed as command line arguments

Designing a shopping cart involves creating a user-friendly interface for customers to add, view, and manage items for purchase.

• Include features such as adding/removing items, viewing total price, and checking out securely.

• Design a visually appealing and intuitive layout for easy navigation.

• Implement functionality for saving items in cart for future visits.

• Consider options for applying discounts or promo codes.

• Ensure compatibility with various devices and browsers for a seaml...read more

Mob extension typically refers to files associated with mobile applications, particularly in the context of software development.

• Mob files are often used in mobile app development, particularly for Android applications.

• Examples include .mob files that may contain compiled code or resources for mobile applications.

• Mob extensions can also refer to files used in specific mobile frameworks or libraries.

A program to play Brick ball game can be developed using a game engine and programming language.

• Choose a game engine like Unity or Unreal Engine to develop the game

• Use a programming language like C# or C++ to code the game mechanics

• Implement physics engine to simulate ball and brick collisions

• Design levels with increasing difficulty and power-ups for the player

• Add sound effects and music to enhance the gaming experience

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. Indexing is the process of creating a data structure to improve the speed of data retrieval.

• Normalization involves breaking down a table into smaller tables to reduce redundancy and dependency.

• Indexing involves creating a data structure to improve the speed of data retrieval.

• Normalization and indexing are important for improving database performance and data integrit...read more

Services and work manager are components in software development that help manage background tasks and processes.

• Services are components that run in the background to perform long-running operations without affecting the user interface.

• Work manager is a library that helps manage background tasks efficiently, taking into account factors like battery life and network availability.

• Services can be used for tasks like downloading files, playing music, or syncing data in the backgr...read more

ListView is a legacy view for displaying lists in Android, while RecyclerView is a more flexible and efficient replacement.

• ListView is less efficient in terms of memory and performance compared to RecyclerView.

• RecyclerView provides better performance by recycling views and separating the responsibilities of layout and data management.

• RecyclerView supports more advanced features like animations and item decorations.

• ListView is simpler to implement but lacks the flexibility and...read more

Multithreading is the ability of a CPU to execute multiple threads concurrently.

• Multithreading improves performance by utilizing idle CPU time.

• Example: A web server handling multiple requests simultaneously.

• Multithreading can lead to synchronization issues and race conditions.

• Thread safety can be achieved through locks and semaphores.

To divide a cake into 8 parts with only 3 cuts, make two perpendicular cuts to create 4 equal pieces, then cut each of those pieces in half.

• Make a horizontal cut across the middle of the cake to create 2 equal halves.

• Make a vertical cut through the middle of the cake to create 4 equal quarters.

• Make a diagonal cut through each quarter to create 8 equal parts.