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Python is commonly used for data manipulation tasks due to its powerful libraries like Pandas and NumPy.
Use Pandas library for data manipulation tasks in Python
Pandas provides data structures like DataFrame for easy manipulation
Use NumPy for numerical operations on data arrays
Example: df['new_column'] = df['column1'] + df['column2']
Interview questions for legal executive position at a Real Estate firm in Bangalore karnataka
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I applied via Walk-in and was interviewed in Oct 2023. There was 1 interview round.
The OS layer is the software layer that manages hardware resources and provides a platform for running applications.
Manages hardware resources such as CPU, memory, and storage
Provides a platform for running applications and managing processes
Handles input/output operations and communication between hardware and software
Examples include Windows, macOS, Linux, iOS, Android
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Acts as a barrier between a trusted internal network and untrusted external network
Filters traffic based on rules set by network administrators
Can be hardware-based or software-based
Can block or allow traffic based on IP addresses, ports, protocols, etc.
Examples include Cisco AS
TCP three-way handshake is a method used to establish a connection between a client and a server in a TCP/IP network.
Client sends a SYN packet to the server to initiate the connection
Server responds with a SYN-ACK packet to acknowledge the request
Client sends an ACK packet back to the server to confirm the connection
Connection is now established and data transfer can begin
I was interviewed before Nov 2023.
One of my biggest achievements was successfully leading a team to complete a complex project ahead of schedule and under budget.
Led a team to complete a complex project ahead of schedule
Managed resources effectively to stay under budget
Received recognition for successful project completion
Refrigeration cycle is a process in which a refrigerant absorbs heat from a low-temperature space and rejects it in a high-temperature space.
The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant starts as a low-pressure gas in the evaporator where it absorbs heat from the space being cooled.
The compressor then compresses the refrigerant into a h...
Four stroke cycle engine works by completing four distinct processes - intake, compression, power, and exhaust strokes.
Intake stroke: Air-fuel mixture is drawn into the cylinder as the piston moves downward.
Compression stroke: The intake valve closes and the piston compresses the mixture, preparing it for ignition.
Power stroke: The spark plug ignites the compressed mixture, causing an explosion that drives the piston d...
Petronas interview questions for popular designations
I applied via Company Website and was interviewed before Dec 2020. There was 1 interview round.
To maintain smooth platform operation, it is important to focus on regular maintenance, effective communication, proper training, and continuous monitoring.
Regular maintenance of equipment and systems to prevent breakdowns and ensure optimal performance.
Effective communication among team members to coordinate tasks and address any issues promptly.
Proper training of operators to ensure they have the necessary skills and...
Data is the foundation of decision-making and problem-solving.
Data provides insights into trends and patterns.
Data helps in identifying opportunities and risks.
Data enables informed decision-making and problem-solving.
Data is essential for measuring performance and progress.
Data is critical for compliance and regulatory requirements.
Top trending discussions
posted on 9 Oct 2024
I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
The main reason for belt joint failure is usually due to improper installation or maintenance.
Improper installation of the belt joint, such as incorrect alignment or tensioning
Lack of proper maintenance, leading to wear and tear of the joint
Use of low-quality materials for the joint
Excessive load or stress on the belt joint
Environmental factors like temperature or humidity affecting the joint
The alignment maximum tolerance refers to the maximum allowable deviation from the specified alignment.
Alignment maximum tolerance is the maximum allowable deviation from the specified alignment.
It is typically expressed in terms of a percentage or a specific measurement unit.
For example, a machine part may have an alignment maximum tolerance of +/- 0.005 inches.
Exceeding the alignment maximum tolerance can lead to per
To replace the bucket wheel reclaimer luffing cylinder, follow these steps.
1. Shut down the machine and ensure all power sources are disconnected.
2. Remove any surrounding components that may obstruct access to the luffing cylinder.
3. Use appropriate tools to disconnect the hydraulic hoses and fittings from the cylinder.
4. Support the weight of the cylinder as it is removed to prevent damage to surrounding components.
5...
JSA stands for Job Safety Analysis, focusing on specific job tasks, while HIRA stands for Hazard Identification and Risk Assessment, focusing on overall workplace hazards.
JSA is task-specific, focusing on individual job tasks and potential hazards
HIRA is broader, looking at overall workplace hazards and assessing risks
JSA involves breaking down a job into steps and identifying potential hazards for each step
HIRA involv...
To create a PR in SAP, you can use transaction code ME51N or ME21N.
Use transaction code ME51N to create a purchase requisition in SAP.
Enter the necessary details such as material, quantity, delivery date, etc.
Save the purchase requisition and it will be created in the system.
Alternatively, you can also use transaction code ME21N to create a purchase order directly.
The procedure of pulley replacement involves identifying the faulty pulley, removing the old pulley, installing the new pulley, and testing the system.
Identify the faulty pulley by checking for any signs of wear or damage.
Use appropriate tools to remove the old pulley, such as a pulley puller or wrench.
Install the new pulley by aligning it properly and securing it in place.
Test the system to ensure the new pulley is fu...
PTW stands for Permit to Work, a procedure used to ensure that work is carried out safely in potentially hazardous environments.
PTW is a formal written system used to control certain types of work that are identified as potentially hazardous.
Before starting work, a permit must be obtained from a designated authority.
The permit outlines the work to be done, the hazards involved, and the necessary precautions to be taken...
I applied via Job Portal and was interviewed in Dec 2024. There was 1 interview round.
I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
I applied via campus placement at College of Engineering ( Formerly Pune Instiute of Enginering and Technology ), Pune and was interviewed in Sep 2024. There were 2 interview rounds.
If everyone is cheating you should also do it?
Linear regression is used for continuous variables, while logistic regression is used for binary outcomes.
Linear regression is used to predict a continuous outcome based on one or more input variables.
Logistic regression is used to predict the probability of a binary outcome based on one or more input variables.
Linear regression assumes a linear relationship between the independent and dependent variables, while logist...
Normalization in DBMS is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable tables and establishing relationships between them.
It helps in reducing data redundancy, minimizing data anomalies, and improving data consistency.
There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF, each with spec...
Array difference is finding the elements that are present in one array but not in another.
Use set operations like difference to find elements in one array but not in another.
Example: arr1 = ['a', 'b', 'c'], arr2 = ['b', 'c', 'd'], arr_diff = set(arr1) - set(arr2) = ['a']
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Data Scientist
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