10+ Infotech Interview Questions and Answers for Freshers

There are two types of tags in HTML - paired tags and unpaired tags. The br tag is a line break tag. DOM stands for Document Object Model. CSS is used for styling web pages.

• There are two types of tags in HTML: paired tags (e.g. <p></p>) and unpaired tags (e.g. <br>).

• The br tag in HTML is used to insert a line break.

• DOM (Document Object Model) is a programming interface for web documents. It represents the structure of a document as a tree of objects.

• CSS (Cascading Style Sheet...read more

Arrays are homogeneous data structures while lists are heterogeneous data structures in Python.

• Arrays are fixed in size while lists are dynamic.

• Arrays can only contain elements of the same data type while lists can contain elements of different data types.

• Arrays are faster and more memory-efficient for numerical operations.

• Lists have more built-in functions and are more versatile for general-purpose programming.

• Example of array: import array as arr; a = arr.array('i', [1, 2, ...read more

Lists are mutable while tuples are immutable in Python.

• Lists use square brackets [] while tuples use parentheses ().

• Elements in a list can be added, removed, or modified while tuples cannot be modified.

• Lists are used for collections of homogeneous items while tuples are used for heterogeneous items.

• Lists are generally used for large collections of data while tuples are used for smaller collections or for data that should not be changed.

• Lists are slower than tuples in terms of...read more

Python is a high-level programming language known for its simplicity and readability.

• Python is an interpreted language, which means it does not need to be compiled before running.

• It has a large standard library that provides many useful modules and functions.

• Python supports multiple programming paradigms, including procedural, object-oriented, and functional programming.

• It is widely used in web development, data analysis, artificial intelligence, and scientific computing.

• Pyth...read more

Lambda functions are anonymous functions that can be defined in a single line of code.

• Lambda functions are defined using the lambda keyword.

• They can take any number of arguments, but can only have one expression.

• They are often used as arguments for higher-order functions.

• Example: lambda x: x**2 defines a lambda function that squares its input.

A Java full stack developer should have expertise in both front-end and back-end development using Java technologies.

• Should have knowledge of Java programming language and its frameworks like Spring, Hibernate, etc.

• Should be proficient in front-end technologies like HTML, CSS, JavaScript, and frameworks like Angular, React, etc.

• Should have experience in working with databases like MySQL, Oracle, etc.

• Should be familiar with version control systems like Git, SVN, etc.

• Should hav...read more

reang is not a recognized term in Python development.

• reang is not a Python keyword, module, or function.

• There is no known reference or documentation for reang in Python.

• It is possible that reang is a typo or a mispronunciation of another term.

A while loop is a control flow statement that allows code to be executed repeatedly based on a condition.

• The loop continues until the condition becomes false

• The condition is checked before each iteration

• The loop body must include a way to modify the condition to avoid an infinite loop

A nested loop is a loop inside another loop. It allows iterating over multiple levels of data structures.

• Nested loops are used when we need to perform repetitive tasks within repetitive tasks.

• The inner loop is executed for each iteration of the outer loop.

• Nested loops can be used to iterate over multi-dimensional arrays or nested data structures.

• Example: Printing a multiplication table using nested loops.

A for loop is a control flow statement that iterates over a sequence of elements and executes a block of code for each element.

• A for loop is used to iterate over a sequence such as a list, tuple, or string.

• It consists of an initialization, condition, and increment/decrement statement.

• The loop continues until the condition is false.

• The code block inside the loop is executed for each element in the sequence.

• Example: for item in my_list: print(item)

Yes, there are many programs in Java SQL.

• Java provides JDBC API for connecting to databases

• SQL queries can be executed using PreparedStatement and ResultSet classes

• Example: SELECT * FROM employees WHERE salary > 50000

A keyword is a reserved word in a programming language that has a specific meaning and cannot be used as a variable name.

• Keywords are used to define the syntax and structure of a programming language.

• They cannot be used as variable names or identifiers.

• Examples of keywords in Python include 'if', 'else', 'for', 'while', 'def', 'class', and 'import'.

Data type is a classification of data based on the type of value it holds.

• Data type determines the operations that can be performed on the data

• Examples of data types include integers, strings, booleans, and floats

• Data types can be static or dynamic depending on the programming language

PEP stands for Python Enhancement Proposal, which is a design document providing information or describing a new feature for Python.

• PEP is used to propose and discuss new features or changes in Python

• PEP is maintained by the Python community

• PEP is assigned a number and categorized based on its type

• Examples of PEPs include PEP 8 (Style Guide for Python Code) and PEP 20 (The Zen of Python)

A function is a block of code that performs a specific task and can be called multiple times throughout a program.

• Functions are defined using the 'def' keyword followed by the function name and parentheses.

• Functions can take arguments (inputs) and return values (outputs).

• Functions can be called multiple times throughout a program, making code more efficient and modular.

• Example: def add_numbers(x, y): return x + y

• Example: result = add_numbers(2, 3)

System engineers are responsible for designing, implementing, and maintaining computer systems and networks.

• Designing and planning computer systems and networks

• Installing and configuring hardware and software components

• Monitoring system performance and troubleshooting issues

• Ensuring system security and data backup

• Collaborating with other IT professionals and stakeholders

• Documenting system configurations and processes

A system engineer is responsible for designing, implementing, and managing computer systems and networks.

• Designing and implementing computer systems and networks

• Managing and maintaining system infrastructure

• Troubleshooting and resolving technical issues

• Collaborating with cross-functional teams

• Ensuring system security and data integrity

A system is a collection of interconnected components that work together to achieve a common goal.

• A system is made up of multiple parts or components.

• These components are interconnected and interact with each other.

• The components work together to achieve a common goal or purpose.

• Examples of systems include computer systems, transportation systems, and ecological systems.