Global Logica Software Technologies Software Tester Interview Questions and Answers

Reactjs is a JavaScript library for building user interfaces.

• Developed by Facebook

• Uses a virtual DOM for efficient updates

• Component-based architecture

• Supports server-side rendering

• Can be used with other libraries and frameworks

Java is an object-oriented language while C is a procedural language.

• Java is platform-independent while C is platform-dependent.

• Java has automatic garbage collection while C requires manual memory management.

• Java has built-in support for multithreading while C requires external libraries.

• Java has a larger standard library compared to C.

• Java is more secure than C due to its strong type checking and exception handling.

• C ...read more

Aggregation functions are used to perform calculations on groups of data in a database.

• Aggregation functions include COUNT, SUM, AVG, MAX, and MIN.

• They are used with the GROUP BY clause to group data based on a specific column.

• COUNT function returns the number of rows in a table or the number of non-null values in a column.

• SUM function returns the sum of values in a column.

• AVG function returns the average of values in ...read more

Two ways to write a sentence in mirror image form in Java: reverse string function and array conversion.

• Use the reverse() method of the String class to reverse the sentence

• Convert the sentence to a character array, then swap the first and last characters, second and second-to-last characters, and so on until the middle is reached

• Example: 'Hello World' becomes 'dlroW olleH'

Static is used in public static void main to allow the method to be called without creating an instance of the class.

• Static methods belong to the class and not to any instance of the class.

• The main method is the entry point of a Java program and needs to be called without creating an object of the class.

• The static keyword allows the main method to be called directly from the class, without creating an instance of the c...read more

Abstract classes, interfaces, and enums provide abstraction and modularity in Java.

• Abstract classes provide a partial implementation of a class and cannot be instantiated.

• Interfaces define a set of methods that a class must implement and can be used for multiple inheritance.

• Enums provide a set of named constants.

• All three are used for abstraction and modularity in Java.

• Abstract classes and interfaces are used for polym...read more

Object-oriented software engineering is a framework for designing and developing software using objects.

• Object-oriented software engineering is a methodology for designing and developing software using objects.

• It involves creating classes and objects that encapsulate data and behavior.

• Frameworks are pre-built structures that provide a foundation for building software applications.

• Frameworks can include libraries, APIs,...read more

Java is an object-oriented language with features like inheritance, encapsulation, and polymorphism.

• Inheritance allows classes to inherit properties and methods from other classes.

• Encapsulation hides the implementation details of a class from other classes.

• Polymorphism allows objects to take on multiple forms or behaviors.

• Java also supports abstraction, interfaces, and exception handling.

• Example: class Car extends Vehi...read more

Normalization is a process of organizing data in a database to reduce redundancy and dependency.

• Normalization is used to eliminate data redundancy and improve data integrity.

• It involves dividing a database into two or more tables and defining relationships between them.

• There are different levels of normalization, such as first normal form (1NF), second normal form (2NF), and so on.

• Normalization helps in efficient data ...read more

ADBMS stands for Advanced Database Management System which is an extension of DBMS with additional features.

• ADBMS has advanced features like data mining, data warehousing, and online analytical processing.

• ADBMS is used for handling large and complex data sets.

• DBMS is a basic system for managing data and is used for small and simple data sets.

• DBMS does not have advanced features like ADBMS.

• Examples of ADBMS are Oracle, ...read more

I am a software engineer with 5 years of experience in developing web applications.

• Proficient in programming languages such as Java, Python, and JavaScript

• Experience in developing RESTful APIs and microservices

• Familiarity with front-end technologies such as HTML, CSS, and React

• Strong understanding of database management systems like MySQL and MongoDB

• Experience in Agile development methodologies

I want to gain practical experience and contribute to the industry while also learning on the job.

• I believe that hands-on experience is invaluable in the software engineering field

• I am eager to apply my skills and knowledge to real-world projects

• I am excited to work with a team and learn from experienced professionals

• I am not currently pursuing post-graduation as I feel that gaining industry experience is more importan

The ISO/OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers.

• The ISO/OSI model stands for International Organization for Standardization/Open Systems Interconnection model.

• It is a layered model that helps in understanding and designing network protocols.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each la...read more

To lock a file in Linux, use the flock command or the fcntl system call.

• The flock command can be used to lock a file by acquiring an exclusive or shared lock.

• The fcntl system call can be used to lock a file by setting the F_SETLK or F_SETLKW command.

• Locking a file prevents other processes from modifying or accessing it until the lock is released.

• Locking can be done at the file level or at specific regions within a file...read more

CSS stands for Cascading Style Sheets. It is used to style the appearance of HTML elements on a webpage.

• CSS helps in separating the content of a webpage from its design, making it easier to maintain and update.

• It allows for consistent styling across multiple pages of a website.

• CSS can be used to control layout, colors, fonts, and other visual aspects of a webpage.

• It enables responsive design, making websites adapt to d...read more

To find a loop in a linked list, we can use the Floyd's cycle-finding algorithm.

• Use two pointers, one moving at a speed of one node at a time and the other at a speed of two nodes at a time.

• If there is a loop, the two pointers will eventually meet at the same node.

• To find the starting point of the loop, move one pointer back to the head and then move both pointers at a speed of one node at a time.

• The point where they m...read more

I enjoy exploring new technologies, solving complex problems, and collaborating with others to create innovative solutions.

• Exploring new technologies

• Solving complex problems

• Collaborating with others

• Creating innovative solutions