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I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
JVM stands for Java Virtual Machine, it is a virtual machine that enables a computer to run Java programs.
JVM is an abstract computing machine that enables a computer to run Java programs
It provides a runtime environment in which Java bytecode can be executed
JVM manages memory, provides security, and facilitates garbage collection
It translates Java bytecode into machine code that can be executed by the computer's proce
Constructor is a special type of method used to initialize objects, while a method is a block of code that performs a specific task.
Constructor is called when an object is created, while a method is called to perform a specific task.
Constructors do not have a return type, while methods have a return type.
Constructors have the same name as the class, while methods can have any name.
Example: Constructor - public ClassNam...
Static variables belong to the class itself, while non-static variables belong to instances of the class.
Static variables are shared among all instances of a class
Non-static variables are unique to each instance of a class
Static variables can be accessed without creating an instance of the class
Non-static variables can only be accessed through an instance of the class
JDK is Java Development Kit, JRE is Java Runtime Environment, and JVM is Java Virtual Machine.
JDK includes tools for developing Java applications.
JRE provides the libraries and components required to run Java applications.
JVM is the runtime environment in which Java bytecode is executed.
Example: JDK includes javac compiler, JRE includes Java libraries, JVM interprets bytecode.
Incident management involves resolving incidents to restore normal service operation, while problem management focuses on identifying and addressing the root cause of recurring incidents.
Incident management is the process of managing and resolving incidents to restore normal service operation as quickly as possible.
Problem management involves identifying the root cause of incidents and implementing permanent solutions ...
I will investigate the root cause of the crash, analyze logs, and work on resolving the issue to restore application functionality.
Check application logs for error messages
Identify the root cause of the crash
Work with development team to troubleshoot and fix the issue
Implement temporary workaround if needed
Test the application thoroughly before restoring it to production
To list files, use command line tools like ls or dir.
Use 'ls' command in Unix/Linux systems to list files in a directory
Use 'dir' command in Windows systems to list files in a directory
Add options like -l for detailed listing or -a to show hidden files
Use wildcards like * to filter files based on patterns
grep is a basic pattern matching tool, while egrep is an extended version with more advanced pattern matching capabilities.
grep is a basic command-line utility for searching plain-text data sets for lines that match a regular expression pattern.
egrep is an extended version of grep that supports more advanced regular expression patterns.
egrep is equivalent to grep -E, which enables extended regular expressions.
egrep is ...
I applied via Naukri.com
posted on 24 Sep 2023
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.
If multiple key-value pairs hash to the same index, they are stored in a linked list at that index.
To retrieve a value...
HashMap is not thread-safe while ConcurrentHashMap is thread-safe.
HashMap is not thread-safe and can lead to ConcurrentModificationException if modified while iterating.
ConcurrentHashMap allows concurrent modifications without the need for external synchronization.
ConcurrentHashMap achieves thread-safety by dividing the map into segments, allowing multiple threads to operate on different segments concurrently.
Concurren...
No, main method in Java cannot be overridden.
Main method is a static method of a class and cannot be overridden.
Subclasses can have their own main method, but it will not be considered as the entry point of the program.
Example: public class SubClass extends MainClass { public static void main(String[] args) { // This is not the entry point of the program }}
Use the 'ls' command with the '-a' flag to find hidden files in Unix.
Use the command 'ls -a' to list all files, including hidden files.
Hidden files in Unix start with a dot (.) before the file name.
Example: 'ls -a' will display all files, including hidden files.
Use the sed command to replace a string in Unix
Use the following syntax: sed 's/original_string/new_string/g' filename
The 's' flag stands for substitute, 'g' flag stands for global (replace all occurrences)
Example: sed 's/hello/goodbye/g' file.txt
I applied via Company Website and was interviewed in Nov 2024. There were 2 interview rounds.
Hydraulic systems and hydraulic machines.
BS6 emissions standards are more stringent than BS4, with lower limits on emissions of pollutants like nitrogen oxides and particulate matter.
BS6 standards have stricter limits on emissions of pollutants like nitrogen oxides (NOx) and particulate matter (PM) compared to BS4.
BS6 compliant vehicles are required to have advanced emission control technologies like selective catalytic reduction (SCR) and diesel particulate ...
An electric motor converts electrical energy into mechanical energy to produce motion, while an electric generator converts mechanical energy into electrical energy.
Electric motor converts electrical energy into mechanical energy
Electric generator converts mechanical energy into electrical energy
Electric motor is used in appliances like fans, washing machines
Electric generator is used in power plants to generate electr
Four stroke engines have separate intake, compression, power, and exhaust strokes, while two stroke engines combine intake and compression in one stroke and power and exhaust in another.
Four stroke engines have a dedicated stroke for each of the four processes: intake, compression, power, and exhaust
Two stroke engines combine intake and compression in one stroke and power and exhaust in another
Four stroke engines are m...
posted on 6 Jan 2025
posted on 20 Dec 2024
It was Easy to medium . overall good
It was Medium to tough level
FIFO (First In, First Out) and LIFO (Last In, First Out) are inventory management methods.
FIFO: Items that are added first are the first to be removed. Like a queue.
LIFO: Items that are added last are the first to be removed. Like a stack.
I would focus on improving access to quality education for all citizens.
Implementing policies to ensure equal opportunities for education
Investing in infrastructure and resources for schools in underserved areas
Providing scholarships and financial aid for students from low-income families
Promoting vocational training programs to address skills gaps in the workforce
I was interviewed in Oct 2024.
I led a project to implement a new automated production line, increasing efficiency by 30%.
Researched and selected the best equipment for the production line
Managed the installation and testing of the new machinery
Trained staff on how to operate and maintain the automated system
How will you reduce the returns
I failed to meet a production deadline due to unforeseen issues, but I overcame it by adjusting the schedule and reallocating resources.
Identify the reasons for the failure
Communicate with team members and stakeholders about the situation
Develop a new plan with revised timeline and resource allocation
Implement the new plan effectively to meet the deadline
posted on 7 Oct 2024
I applied via Company Website and was interviewed in Sep 2024. There was 1 interview round.
Software Developer
4
salaries
| ₹15 L/yr - ₹16 L/yr |
Senior Leader Engineer
3
salaries
| ₹16.5 L/yr - ₹16.5 L/yr |
TCS
Accenture
Wipro
Cognizant