100+ fresher Interview Questions and Answers

The unit of electric current is Ampere (A).

• Electric current is the flow of electric charge.

• Ampere is named after the French physicist Andre-Marie Ampere.

• One Ampere is defined as the flow of one Coulomb of charge per second.

Answering questions on primary and foreign keys, truncate command, and reversing a string.

• Primary key is a unique identifier for a record in a table, while foreign key is a reference to a primary key in another table.

• Truncate command deletes all data from a table, but keeps the structure intact.

• To reverse a string, you can use a loop to iterate through the characters and append them in reverse order to a new string.

The unit of magnetic flux is the Weber (Wb).

• The unit of magnetic flux is named after the German physicist Wilhelm Eduard Weber.

• One Weber is equal to one Tesla multiplied by one square meter.

• The Weber is a derived unit in the International System of Units (SI).

Gas chromatography is a separation technique based on the adsorption of gases or vapours of a liquid by an adsorbent.

• Gas chromatography separates and analyzes volatile compounds in a sample mixture.

• It involves a stationary phase (adsorbent) and a mobile phase (carrier gas).

• The sample is injected into the column and the compounds are separated based on their affinity to the stationary phase.

• The separated compounds are detected by a detector and a chromatogram is generated.

• Gas ...read more

The formula of (a+b)2 is a^2 + 2ab + b^2.

• The formula is derived using the distributive property of multiplication over addition.

• It can also be expanded as (a+b)(a+b) or a(a+b) + b(a+b).

• The result is a quadratic expression with three terms.

I have knowledge of computer systems and programming languages to troubleshoot technical issues.

• Proficient in programming languages such as Java, Python, and C++

• Familiar with operating systems such as Windows, Linux, and macOS

• Able to diagnose and resolve technical issues related to hardware and software

• Experience with debugging and testing code

• Knowledge of database management systems and SQL

• Ability to learn and adapt to new technologies quickly

Namespace in Python is a way to organize and manage variables, functions, and classes. Tuples are immutable sequences of elements. Slicing is a way to extract a subset of elements from a sequence.

• Namespace in Python helps avoid naming conflicts by organizing variables, functions, and classes.

• Tuples are immutable and ordered collections of elements, defined using parentheses. Example: my_tuple = (1, 2, 3)

• Mutable objects can be changed after creation, while immutable objects ca...read more

Slicing in Python is a way to extract a portion of a sequence, such as a string, list, or tuple.

• Slicing is done using the square bracket notation with a start, stop, and step value.

• The start index is inclusive, the stop index is exclusive, and the step value determines the increment.

• Slicing can be used to extract a subsequence, reverse a sequence, or create a copy of a sequence.

• Examples: myList[2:5] returns elements at index 2, 3, and 4. myList[::-1] returns a reversed copy o...read more

Call by value passes a copy of the value while reference by value passes a copy of the reference to the value.

• Call by value passes the value of a variable to a function, while reference by value passes the reference to the variable.

• In call by value, any changes made to the parameter inside the function do not affect the original variable outside the function.

• In reference by value, any changes made to the parameter inside the function affect the original variable outside the f...read more

Factors that can be considered as risks in insurance are determined based on their likelihood of occurrence and potential impact on the insured party.

• Evaluate the probability of the risk occurring

• Assess the potential impact of the risk on the insured party

• Consider the financial implications of the risk for the insurance company

• Analyze historical data and trends to identify common risks in a particular industry or region

• Consult with experts or actuaries to quantify and assess ...read more

Garbage collection is an automatic memory management process. OOPS principles are encapsulation, inheritance, and polymorphism.

• Garbage collection is the process of automatically freeing up memory that is no longer being used by a program.

• It helps prevent memory leaks and makes programming easier by removing the need for manual memory management.

• OOPS principles are encapsulation, inheritance, and polymorphism.

• Encapsulation is the practice of hiding the implementation details o...read more

Blockchain is a decentralized, immutable ledger that can provide solutions to web2 problems.

• Blockchain can provide secure and transparent transactions without the need for intermediaries.

• It can prevent data tampering and ensure data privacy.

• Smart contracts can automate processes and reduce costs.

• Blockchain can enable decentralized applications and platforms.

• Examples include Bitcoin, Ethereum, and supply chain management systems.

HPLC is a technique used to separate, identify, and quantify components in a mixture.

• HPLC uses a liquid mobile phase and a stationary phase to separate components based on their chemical properties.

• It is commonly used in pharmaceuticals, food and beverage, environmental analysis, and forensic science.

• HPLC can detect and quantify very small amounts of compounds, making it a highly sensitive analytical technique.

• Different types of HPLC include reverse-phase, normal-phase, ion-e...read more

Program to check prime numbers and SQL query for prime numbers.

• Use a loop to check if a number is divisible by any number less than itself.

• In SQL, use a subquery to check if a number is divisible by any number less than itself.

• To optimize, only check divisibility up to the square root of the number.

You should use a programming language that is appropriate for the project requirements and your skill level.

• Consider the project requirements and choose a language that is suitable for the task.

• Choose a language that you are comfortable with and have experience in.

• If the project involves web development, consider using HTML, CSS, and JavaScript.

• If the project involves data analysis, consider using Python or R.

• If the project involves mobile app development, consider using Java...read more

There are various types of gas chromatography gas chamber pipes available.

• The types of gas chromatography gas chamber pipes depend on the application and the type of gas being analyzed.

• Some common types include fused silica capillary columns, packed columns, and micropacked columns.

• The choice of column depends on factors such as the sample size, the type of analyte, and the desired separation efficiency.

• The gas chamber pipes may also vary in terms of their dimensions, coating...read more

The name of resistant in unit is Ohm.

• Ohm is the unit of electrical resistance.

• It is named after Georg Simon Ohm, a German physicist.

• The symbol for Ohm is Ω.

• It is used to measure the resistance of a material or component in an electrical circuit.

Reversing a six-digit number using C programming language.

• Take input of a six-digit number from the user.

• Extract each digit of the number using modulus operator.

• Multiply the extracted digit with its respective place value and add it to the reversed number.

• Repeat the above step for all digits.

• Print the reversed number.

Query to retrieve full name of employees from employee table.

• Use SELECT statement to retrieve data from employee table.

• Concatenate first name and last name columns using CONCAT function.

• Use AS keyword to give an alias name to the concatenated column.

Exception handling blocks include try, catch, finally. final is a keyword for declaring constants, finally is a block always executed. Static methods cannot be overridden.

• Exception handling blocks: try, catch, finally

• final keyword for constants, finally block always executed

• Static methods cannot be overridden

DCM and DEM are modules in AUTOSAR for diagnostic communication and error management.

• DCM (Diagnostic Communication Manager) module handles communication between the diagnostic tester and the vehicle's ECUs.

• DCM provides services for diagnostic communication such as reading and clearing diagnostic trouble codes (DTCs), accessing ECU data, and performing diagnostic routines.

• DEM (Diagnostic Event Manager) module manages and reports diagnostic events and errors within the vehicle'...read more

A solution is a homogeneous mixture of two or more substances, where one substance is dissolved in another.

• A solution is made up of a solute (the substance being dissolved) and a solvent (the substance doing the dissolving).

• The solute particles are evenly distributed throughout the solvent, resulting in a homogeneous mixture.

• Examples of solutions include saltwater (salt dissolved in water), sugar water (sugar dissolved in water), and air (oxygen, nitrogen, and other gases dis...read more

The capital of Bihar is Patna.

• The capital city of Bihar is Patna.

• Patna is the largest city in Bihar.

• Patna is located on the southern bank of the Ganges River.

• It is an important center for trade, education, and administration in the state.

The composition of medicine for diabetes varies depending on the type and severity of diabetes.

• Medicines for diabetes include insulin, metformin, sulfonylureas, DPP-4 inhibitors, GLP-1 receptor agonists, SGLT2 inhibitors, and more.

• Glycomet 500 contains metformin, which helps lower blood sugar levels by reducing glucose production in the liver and improving insulin sensitivity.

• Gluconorm G1 contains glimepiride and metformin, which work together to lower blood sugar levels by i...read more

My preferred programming language is Python. I have strong leadership skills.

• I prefer Python as my programming language because of its simplicity and versatility.

• I have experience in leading a team during my college project, where I successfully coordinated tasks and ensured timely completion.

• I believe in effective communication, delegation, and motivating team members to achieve common goals.

• I have also attended leadership workshops and seminars to enhance my leadership skil...read more

The tagline of ICICI bank is 'Hum Hai Na, Khyal Apka' which translates to 'We are there for you, your trust'.

• The tagline emphasizes the bank's commitment to being there for their customers.

• It conveys a sense of trust and reliability.

• The tagline reflects the bank's customer-centric approach.

• It aims to build a strong relationship with customers based on trust and support.

• The tagline is in Hindi, connecting with the Indian audience and showcasing the bank's local roots.

The unit of magnetic field is called Tesla (T).

• Tesla is named after the famous inventor and physicist Nikola Tesla.

• It is used to measure the strength of magnetic fields.

• One Tesla is equal to one Weber per square meter.

• Commonly used prefixes for Tesla are milliTesla (mT) and microTesla (µT).

Access modifiers in Python are keywords used to restrict access to class members.

• Python has three access modifiers: public, protected, and private.

• Public members can be accessed from anywhere outside the class.

• Protected members can be accessed within the class and its subclasses.

• Private members can only be accessed within the class.

• Public members are denoted by no underscore, protected members by a single underscore, and private members by double underscore.

• Example: class MyC...read more

Smart contracts can automate investment processes and ensure secure and transparent transactions, leading to higher returns.

• Smart contracts can eliminate intermediaries and reduce transaction costs.

• They can automate investment processes, such as dividend payments and asset transfers.

• Smart contracts can ensure secure and transparent transactions, reducing the risk of fraud and errors.

• They can also enable new investment opportunities, such as decentralized finance (DeFi) platfo...read more

An array is a collection of similar data types stored in contiguous memory locations.

• Arrays can be of any data type such as integers, floats, characters, etc.

• Arrays are accessed using an index starting from 0.

• Arrays can be one-dimensional, two-dimensional, or multi-dimensional.

• Example: string[] names = {"John", "Jane", "Bob"};

• Example: int[] numbers = new int[5];

String pool is a cache of unique string literals in Java. Strings are immutable to ensure security, synchronization, and performance.

• String pool is a special memory area in Java heap where unique string literals are stored.

• Strings are immutable in Java to ensure security - once created, their values cannot be changed.

• Immutability also helps in synchronization and performance optimization.

• Example: String str1 = "hello"; String str2 = "hello"; Both str1 and str2 will point to t...read more

Program to check if a number is prime or not

• A prime number is only divisible by 1 and itself

• 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, it is not prime

• If n is not divisible by any number, it is prime

I have knowledge of software development and programming languages.

• I am proficient in programming languages such as Java, Python, and C++.

• I have experience in software development methodologies such as Agile and Waterfall.

• I am familiar with software testing and debugging techniques.

• I have worked with various software tools such as Eclipse, Visual Studio, and Git.

• I am constantly learning and keeping up with the latest trends and technologies in software development.

I prefer Python and rate myself 8 out of 10.

• Python is versatile and easy to learn

• I have experience in building web applications using Django framework

• I rate myself 8 out of 10 based on my proficiency and projects completed

BPS stands for Business Process Services. TCS is a multinational IT services company.

• BPS involves outsourcing of non-core business functions to a third-party provider.

• TCS offers a range of IT services including consulting, application development, and maintenance.

• TCS is headquartered in Mumbai, India and operates in over 46 countries.

• TCS is one of the largest IT services companies in the world with a market capitalization of over $100 billion.

I know multiple programming languages including Java, Python, and C++.

• Java

• Python

• C++

I am comfortable in Java and Python for programming.

• Proficient in Java for object-oriented programming

• Skilled in Python for data analysis and scripting

A pointer is a variable that stores the memory address of another variable. An array is a collection of similar data types stored in contiguous memory locations. C is a procedural programming language, while C++ is an object-oriented programming language.

• Pointer in C: int *ptr; // declaring a pointer to an integer variable

• Array in C++: int arr[5]; // declaring an array of integers with 5 elements

• Difference between C & C++: C is procedural, C++ is object-oriented

Manual testing is a process of verifying software manually without using any automated tools.

• It involves executing test cases manually

• It is time-consuming and requires human effort

• It helps in identifying defects that may be missed by automated testing

• It includes exploratory testing, regression testing, and ad-hoc testing

• It is often used in the initial stages of software development

• Example: Testing a website by clicking on links and buttons to ensure they work as expected

Drawing a curve requires understanding of its shape and using appropriate tools and techniques.

• Choose the appropriate tool for the type of curve you want to draw (e.g. pencil, pen, brush, etc.)

• Start with a light sketch of the curve to get the shape right

• Use reference images or objects to help guide the curve

• Practice using different techniques such as shading and blending to add depth and dimension to the curve

• Experiment with different styles and approaches to find what works ...read more

if else is used for conditional statements with multiple conditions, while switch is used for selecting one of many options based on a single expression.

• if else allows for multiple conditions to be checked, while switch is used for selecting one option from many

• if else is more flexible as it can handle complex conditions, while switch is more concise for simple comparisons

• switch is often preferred when there are multiple options to choose from, while if else is used for more ...read more

Program to swap two numbers

• Declare two variables and assign values to them

• Use a third variable to store the value of the first variable

• Assign the value of the second variable to the first variable

• Assign the value of the third variable to the second variable

I expect a competitive CTC based on industry standards and my qualifications.

• Expectation based on industry standards

• Consideration of qualifications and experience

• Open to negotiation based on job responsibilities

Schedule H & H1 are lists of prescription drugs in India. Schedule G lists drugs that require special storage conditions. Anarex is a pain reliever.

• Schedule H contains drugs that require a prescription from a registered medical practitioner and cannot be sold without it.

• Schedule H1 contains antibiotics and requires a prescription from a registered medical practitioner with a red line on it.

• Schedule G lists drugs that require special storage conditions such as refrigeration.

• An...read more

Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.

• Chromatography involves a stationary phase and a mobile phase.

• The sample is introduced into the mobile phase and travels through the stationary phase, separating the components based on their interactions with the stationary phase.

• Different types of chromatography include gas chromatography, liquid chromatography, and ion exchange chromatography.

• Chromatography is used in...read more

The benefits of meditation

• Meditation reduces stress and anxiety

• It improves focus and concentration

• It enhances self-awareness and promotes emotional health

• Regular meditation can lead to better sleep and lower blood pressure

A database management system (DBMS) is a software that manages and organizes data in a structured manner.

• DBMS is used to create, retrieve, update, and delete data in a database.

• It provides a way to store and organize large amounts of data efficiently.

• DBMS ensures data integrity, security, and consistency.

• Examples of popular DBMS include MySQL, Oracle, and Microsoft SQL Server.