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100+ fresher Interview Questions and Answers
Q51. what is class and object?
Class is a blueprint for creating objects. Objects are instances of a class that have their own unique properties and behaviors.
A class is a template or blueprint for creating objects
An object is an instance of a class with its own unique properties and behaviors
Classes define the properties and methods that objects of that class will have
Objects can interact with each other through their methods and properties
Example: A class 'Car' can have properties like 'color', 'model', ...read more
Q52. Mover zeros to the lend of the array without changing the order
Move zeros to the end of the array without changing the order.
Iterate through the array and count the number of zeros
Create a new array with all the non-zero elements
Append the counted number of zeros at the end of the new array
Q53. Syntax for while loop and for loop?
Syntax for while loop and for loop
For loop: for(initialization; condition; increment/decrement){ //code block }
While loop: while(condition){ //code block }
Example: for(int i=0; i<5; i++){ cout<
Example: int i=0; while(i<5){ cout<
Q54. What is Bank
A bank is a financial institution that accepts deposits from the public and creates credit.
Banks provide various financial services such as loans, credit cards, and savings accounts.
They also offer investment services like mutual funds and stocks.
Banks make money by charging interest on loans and by investing the deposits they receive.
Examples of banks include JPMorgan Chase, Bank of America, and Wells Fargo.
Q55. Who is the father of history?
Herodotus is considered the father of history.
Herodotus was a Greek historian who lived in the 5th century BC.
He wrote 'The Histories', which is considered the first work of history in Western literature.
He traveled extensively and collected information from various sources to write his book.
Herodotus is known for his detailed and descriptive writing style.
His work has had a significant impact on the development of historical writing.
Q56. write a program on prime number or not
A program to check if a given number is prime or not.
Take input from user
Check if the number is less than 2, then it is not a prime number
Loop through numbers from 2 to n-1 and check if n is divisible by any of them
If n is divisible by any number, then it is not a prime number
If n is not divisible by any number, then it is a prime number
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Q57. DSA - Retrieve duplicate character from given string
Use a hashmap to keep track of characters and their counts, then retrieve characters with count > 1.
Create a hashmap to store characters and their counts
Iterate through the string and update the counts in the hashmap
Retrieve characters with count > 1 from the hashmap
Q58. What is difference between drop, delete, truncate
Drop, delete, and truncate are SQL commands used to remove data from a table, but they differ in their functionality and implications.
DROP command is used to remove a table or database from the database schema. It deletes the table definition and all its data.
DELETE command is used to remove specific rows from a table based on a condition. It does not delete the table structure.
TRUNCATE command is used to remove all rows from a table, but it does not delete the table structur...read more
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Q59. What is credit
Credit is a financial term that refers to the ability of a borrower to obtain goods or services before payment, based on trust.
Credit is a form of borrowing money or obtaining goods or services with the promise to pay for them in the future.
It is based on trust and the belief that the borrower will fulfill their payment obligations.
Credit can be provided by banks, financial institutions, or individual lenders.
Examples of credit include credit cards, loans, mortgages, and line...read more
Q60. What is pointer in C?
Pointer is a variable that stores the memory address of another variable in C programming language.
Pointers are used to manipulate data structures like arrays, linked lists, and trees.
They can be used to pass values by reference to functions.
Pointer arithmetic can be performed to access elements of an array.
Example: int *ptr; ptr = # printf("%d", *ptr);
Example: void swap(int *a, int *b) { int temp = *a; *a = *b; *b = temp; }
Example: int arr[5] = {1, 2, 3, 4, 5}; int *ptr = ar...read more
Q61. What do you know about claims?
Claims are requests made by individuals or companies to an insurance company for payment of benefits or services covered under an insurance policy.
Claims are typically submitted after a covered event or service has occurred.
Insurance companies review claims to determine if they are valid and covered under the policy.
Claims can be related to various types of insurance such as health, auto, property, or liability.
Examples of claims include medical bills submitted to health insu...read more
Q62. Define HRM?
HRM is the process of managing human resources to achieve organizational goals.
HRM involves recruitment, selection, training, and development of employees.
It also includes performance management, compensation, and benefits administration.
HRM aims to create a positive work environment and ensure employee satisfaction.
Effective HRM can lead to increased productivity and profitability for the organization.
Examples of HRM practices include job analysis, job design, and succession...read more
Q63. Why String is immutable in java ?
String is immutable in Java to ensure security, thread safety, and optimization.
Immutable strings prevent accidental modification of data.
String pooling reduces memory usage by reusing common strings.
Immutable strings are thread-safe, avoiding synchronization issues.
String immutability allows for efficient caching and optimization.
Security is enhanced as immutable strings cannot be modified by malicious code.
Q64. What are different types of welding
Different types of welding include MIG, TIG, stick, flux-cored, and oxy-acetylene welding.
MIG welding (Metal Inert Gas) uses a wire electrode and shielding gas to join metal pieces together.
TIG welding (Tungsten Inert Gas) uses a tungsten electrode and inert gas to create a strong weld.
Stick welding (Shielded Metal Arc Welding) uses a flux-coated electrode to create a weld.
Flux-cored welding uses a tubular wire electrode with flux inside to shield the weld.
Oxy-acetylene weldi...read more
Q65. What do you mean by saving account
A savings account is a type of bank account where you can deposit and withdraw money while earning interest on the balance.
Savings accounts are typically used for short-term savings goals
They usually offer lower interest rates than other types of accounts
Some savings accounts may have minimum balance requirements or fees
Interest earned on savings accounts is usually taxable
Examples of savings accounts include high-yield savings accounts and money market accounts
Q66. What is moter
A motor is a device that converts electrical energy into mechanical energy to produce motion.
Motors are commonly used in various applications such as electric vehicles, industrial machinery, and household appliances.
They work based on the principle of electromagnetic induction.
There are different types of motors, including DC motors, AC motors, and stepper motors.
Examples of motors include the engine in a car, the fan in a refrigerator, and the motor in a washing machine.
Q67. What is java can you explain
Java is a high-level programming language used for developing applications and software.
Java is object-oriented and platform-independent.
It is used for developing web, mobile, and desktop applications.
Java code is compiled into bytecode and executed on a Java Virtual Machine (JVM).
Java has a vast library of pre-built classes and APIs.
Popular frameworks and tools for Java development include Spring, Hibernate, and Maven.
Q68. What is OOPS can you explain
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
OOPS is based on four main concepts: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation is the process of hiding the implementation details of an object from the outside world.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects of different classes to be treated as if they were of the same...read more
Q69. what do you know about collections?
Collections refer to the process of gathering and organizing items or objects into a group.
Collections can include items such as books, art, antiques, coins, stamps, etc.
People often collect items based on personal interest, hobby, or investment purposes.
Collections can be displayed in museums, galleries, private homes, or online platforms.
Some famous collections include the British Museum in London, the Louvre in Paris, and the Smithsonian in Washington, D.C.
Q70. What is call center, and what is Bpo
A call center is a centralized office where customer service representatives handle incoming and outgoing calls. BPO stands for Business Process Outsourcing, which involves outsourcing non-core business functions to a third-party provider.
Call centers are used by companies to handle customer inquiries, complaints, and support.
BPO companies provide a range of services such as customer support, technical support, data entry, and back-office operations.
Call centers and BPOs are ...read more
Q71. Explain encapsulation and abstraction
Encapsulation is the process of hiding implementation details while abstraction is the process of hiding unnecessary details.
Encapsulation is achieved through access modifiers like public, private, and protected.
Abstraction is achieved through abstract classes and interfaces.
Encapsulation protects the data from outside interference while abstraction focuses on the essential features of an object.
Example of encapsulation: A class with private variables and public methods to ac...read more
Q72. What does banking means ?
Banking refers to the business of accepting deposits and lending money.
Banking involves financial transactions such as deposits, withdrawals, and loans.
Banks provide various services such as savings accounts, checking accounts, credit cards, and mortgages.
Banks also offer investment services such as mutual funds, stocks, and bonds.
Banking is regulated by government agencies to ensure safety and stability of the financial system.
Examples of banks include JPMorgan Chase, Bank o...read more
Q73. What is an insurance?
Insurance is a financial protection plan that provides coverage against potential losses or damages.
Insurance involves a contract between the insurer and the insured party.
The insured pays a premium to the insurer in exchange for coverage against specified risks.
Common types of insurance include health, life, auto, home, and travel insurance.
Insurance helps individuals and businesses manage risks and protect themselves financially.
Examples of insurance companies include State...read more
Q74. What is credit control?
Credit control is the process of managing the credit extended to customers and ensuring timely payment.
Credit control involves setting credit limits for customers based on their creditworthiness.
It also includes monitoring customer payments and following up on overdue invoices.
Credit control aims to minimize the risk of bad debts and improve cash flow for the company.
Examples of credit control measures include sending payment reminders, imposing late fees, and restricting fur...read more
Q75. What is stop loss treaty?
Stop loss treaty is a reinsurance agreement where the reinsurer agrees to cover losses above a certain threshold for the ceding company.
Stop loss treaty is a type of reinsurance agreement.
It sets a specific threshold for losses that the ceding company will cover on its own.
The reinsurer agrees to cover losses above this threshold.
It helps the ceding company limit its exposure to large losses.
Example: If a ceding company has a stop loss treaty with a threshold of $1 million, t...read more
Q76. Compilation process in C programming
Compilation process in C programming involves preprocessing, compiling, assembling, and linking.
Preprocessing: Includes inclusion of header files and macro expansions.
Compiling: Translates source code into assembly code.
Assembling: Converts assembly code into machine code.
Linking: Combines object files and libraries to create an executable.
Q77. What is our structure blofnour company
Our company has a hierarchical structure with clear levels of authority and responsibility.
Our company has a CEO who oversees all operations
There are several departments such as HR, Finance, Marketing, etc.
Each department has a head who reports to the CEO
There are managers and supervisors who oversee teams within each department
Employees report to their respective managers or supervisors
Q78. Write a code in reverse of the string
Code to reverse a string
Use a loop to iterate through the string
Create a new string and add characters from original string in reverse order
Return the reversed string
Q79. Find repitation of the letters in a string
Count the repetition of letters in a string
Iterate through the string and count the occurrences of each letter
Store the counts in a dictionary or array
Return the counts for each letter
Q80. Introduction of ram and storage power and type
RAM and storage are two types of computer memory. RAM is volatile and used for temporary storage, while storage is non-volatile and used for long-term storage.
RAM stands for Random Access Memory and is used for temporary storage of data and instructions
Storage is non-volatile and used for long-term storage of data and files
Types of RAM include DDR, DDR2, DDR3, and DDR4
Types of storage include HDD, SSD, and flash drives
Q81. Find second smallest element in the array
The second smallest element in an array is found by sorting the array and selecting the element at index 1.
Sort the array in ascending order
Access the element at index 1 to get the second smallest element
Q82. What effects welding?
Various factors can affect welding, including type of material, welding technique, welding environment, and equipment used.
Type of material being welded (e.g. steel, aluminum, stainless steel)
Welding technique used (e.g. MIG, TIG, stick)
Welding environment (e.g. indoors, outdoors, underwater)
Equipment used (e.g. welding machine, electrodes, shielding gas)
Q83. Tell me about native
Native refers to something that is inherent or original to a particular place or culture.
Native language refers to the language spoken by the people of a particular region.
Native plants are those that are indigenous to a particular area.
Native culture refers to the customs and traditions of a particular group of people.
Native advertising is a type of advertising that blends in with the content of a website or platform.
Native apps are mobile applications that are developed spe...read more
Q84. Different between 2 stock 4 stock engine
2-stroke engines have a power stroke every revolution, while 4-stroke engines have a power stroke every other revolution.
2-stroke engines have fewer moving parts and are lighter than 4-stroke engines.
2-stroke engines have a simpler design and are easier to maintain.
4-stroke engines are more fuel-efficient and produce less pollution than 2-stroke engines.
Examples of 2-stroke engines include chainsaws and dirt bikes, while examples of 4-stroke engines include cars and lawnmower...read more
Q85. What is net amount?
Net amount refers to the final amount after all deductions and additions have been made.
Net amount is the total amount after all deductions and additions have been made.
It is the amount that is actually received or paid.
For example, if a person's salary is $5000 and deductions such as taxes and insurance amount to $1500, the net amount received by the person would be $3500.
Q86. What is importantto2cc level
C-level refers to top executives in a company who hold the highest level of decision-making authority.
C-level executives are responsible for setting the company's strategic direction.
They make critical decisions that impact the overall success of the organization.
C-level executives typically include positions like CEO, CFO, CTO, etc.
They have a broad understanding of the industry and possess strong leadership skills.
C-level executives are accountable for the company's financi...read more
Q87. SQL- write a syntax to create table
SQL syntax to create a table
Use CREATE TABLE statement
Specify table name and column names with data types
Add constraints like primary key, foreign key, etc. if needed
Q88. What is the customer service?
Customer service is the support and assistance provided to customers before, during, and after a purchase.
Customer service involves addressing customer queries, complaints, and feedback.
It is important to provide prompt and courteous service to ensure customer satisfaction.
Examples of customer service include answering phone calls, responding to emails, and providing technical support.
Good customer service can lead to customer loyalty and positive word-of-mouth marketing.
Q89. Tell about VFS GLOBAL
VFS Global is a global outsourcing and technology services specialist for governments and diplomatic missions worldwide.
Provides visa application services for various countries
Offers passport and consular services
Manages administrative and non-judgmental tasks related to visa, passport, identity management, and other citizen services
Operates visa application centers in multiple countries
Q90. what are jagged array
Jagged arrays are arrays of arrays where each element can be of different sizes.
Jagged arrays are useful when you need to store arrays of different lengths.
Each sub-array within a jagged array can have a different number of elements.
Example: string[][] jaggedArray = new string[3][]; jaggedArray[0] = new string[2]; jaggedArray[1] = new string[3]; jaggedArray[2] = new string[4];
Q91. What is resistance
Resistance is the opposition to the flow of electric current in a circuit.
Resistance is measured in ohms (Ω).
It is caused by factors such as the material of the conductor, its length, and its cross-sectional area.
Resistance can be calculated using Ohm's law: R = V/I, where R is resistance, V is voltage, and I is current.
Higher resistance leads to lower current flow.
Examples of resistors include light bulbs, heating elements, and electrical wires.
Q92. What is promise in javascript
Promise in JavaScript is an object representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations in JavaScript.
A promise can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained using .then() method to handle success and failure cases.
Example: const myPromise = new Promise((resolve, reject) => { ... });
Q93. What is time complexity?
Time complexity refers to the amount of time taken by an algorithm to run as the input size increases.
It is a measure of how efficient an algorithm is.
It is usually expressed in Big O notation.
The lower the time complexity, the better the algorithm.
For example, an algorithm with O(n) time complexity will take longer as the input size increases compared to an algorithm with O(1) time complexity.
Q94. What's static keyword?
Static keyword is used to declare a variable or method that belongs to the class and not to the instance of the class.
Static variables are shared by all instances of a class
Static methods can be called without creating an instance of the class
Static blocks are used to initialize static variables
Static keyword can also be used to create nested classes
Example: public static int count;
Q95. draw a pattern using any language
I will draw a pyramid pattern using Python language.
Use nested loops to print spaces and stars in a pyramid shape
Start with 1 star at the top and increase stars in each row
Decrease spaces in each row to create the pyramid shape
Q96. What is social media
Social media refers to online platforms and websites that allow users to create and share content, as well as interact with others.
Social media is a digital communication tool that enables users to connect and engage with others through various online platforms.
It allows users to create and share content such as text, photos, videos, and links.
Users can interact with each other by liking, commenting, and sharing content.
Popular social media platforms include Facebook, Instagr...read more
Q97. What's your favorite dish?
My favorite dish is lasagna, with layers of pasta, meat, cheese, and tomato sauce baked to perfection.
Lasagna is a classic Italian dish made with layers of pasta, meat (such as ground beef or sausage), cheese (like mozzarella and ricotta), and tomato sauce.
It is typically baked in the oven until the cheese is melted and bubbly.
Some variations of lasagna include vegetarian options with layers of vegetables or seafood instead of meat.
Lasagna is often served with a side of garli...read more
Q98. Power of ram and rom in desktop computer
RAM and ROM are two types of computer memory. RAM is volatile and used for temporary storage, while ROM is non-volatile and used for permanent storage.
RAM stands for Random Access Memory and is used for temporary storage of data and programs
ROM stands for Read-Only Memory and is used for permanent storage of data and programs
RAM is volatile, meaning it loses its contents when the computer is turned off
ROM is non-volatile, meaning it retains its contents even when the computer...read more
Q99. Define all the manufacturing processes.
Manufacturing processes are methods used to create products from raw materials, involving various steps like casting, machining, welding, etc.
Casting: pouring molten metal into a mold to create a specific shape
Machining: removing material from a workpiece using cutting tools
Welding: joining two or more pieces of metal together using heat or pressure
Forming: shaping a material into a desired form through bending, rolling, etc.
Additive manufacturing: building up layers of mater...read more
Q100. Explain Code for sorting
Sorting code arranges elements in a specific order.
Choose a sorting algorithm based on the requirements
Iterate through the array and compare adjacent elements
Swap the elements if they are not in the desired order
Repeat until the array is sorted
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