Trell IT Supporter Interview Questions and Answers

Asked array questions medium level

Q1. About my internships
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Q2. And projects in detail
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Q1. SQL hakcerank test, 10 questions 1 hour
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Q2. On sql mainly, with some python and Excel.
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Q1. How to check the open files in the linux without using lsof
Ans. 
To check open files in Linux without using lsof, you can use the /proc filesystem.
• Access the /proc//fd directory to view open files for a specific process.

• Use the find command to search for open files in the /proc directory.

• Check the /proc/sys/fs/file-nr file to see the total number of open files system-wide.
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Q2. What is /proc linux
Ans. 
The /proc filesystem in Linux is a virtual filesystem that provides detailed information about the system's hardware, processes, and kernel.
• It is a virtual filesystem located at /proc that allows access to kernel data structures.

• It provides information about processes, hardware, and kernel configuration.

• Files in /proc can be read to gather system information, such as CPU usage, memory usage, and network statistics.
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Q1. Difference between http1.1 vs https2
Ans. 
HTTP/1.1 is a protocol for transferring data over the internet, while HTTPS/2 is a secure version of HTTP/2 with improved performance.
• HTTP/1.1 is not secure by default, while HTTPS/2 provides encryption and security.

• HTTP/1.1 uses multiple connections for parallel loading of resources, while HTTPS/2 uses a single connection with multiplexing.

• HTTPS/2 supports header compression, reducing overhead and improving performanc...read more
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Q2. What is grpc ?
Ans. 
gRPC is a high-performance, open-source RPC (Remote Procedure Call) framework developed by Google.
• gRPC stands for Google Remote Procedure Call.

• It uses HTTP/2 for transport, Protocol Buffers for serialization, and supports multiple programming languages.

• gRPC allows for efficient communication between services in a microservices architecture.

• It enables bi-directional streaming and authentication features.

• Example: gRPC ca...read more
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Machine coding round

Q1. Explain your project
Ans. 
Developed a web application for managing inventory and sales for a retail store
• Used React.js for front-end development

• Implemented Node.js for back-end functionality

• Utilized MongoDB for database management
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Q2. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q1. BGC Questions and location preference
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Q1. Regarding to past experiences
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Q1. Knowledge test and working assurity
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Second number from array

Q1. Data Structures and Theoretical Java and SQL concepts like - views, indexes, DML
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Programs on Sorting and Search Algorithms and Core Java

Q1. Why should we hire you?
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