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Hitachi Digital Services
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posted on 7 Sep 2022
I applied via Recruitment Consulltant and was interviewed before Sep 2021. There were 3 interview rounds.
I applied via Campus Placement and was interviewed in Nov 2020. There were 4 interview rounds.
Multi threading in Java can be implemented using two ways: extending the Thread class or implementing the Runnable interface.
Extend the Thread class and override the run() method.
Implement the Runnable interface and provide the implementation for the run() method.
Create an instance of the Thread class and pass an instance of the class implementing Runnable as a parameter.
Start the thread using the start() method.
Exampl...
Finally, final, and finalize are related words with different meanings.
Finally is an adverb used to indicate the end of something.
Final is an adjective used to describe the last or ultimate stage of something.
Finalize is a verb used to complete or make something final.
Examples: Finally, I finished my project. The final exam is tomorrow. I need to finalize the contract.
Thrashing is a phenomenon in computer systems where excessive paging or swapping occurs, leading to a decrease in performance.
Occurs when the system spends more time swapping pages than executing instructions
Caused by insufficient memory or poorly optimized programs
Can be observed through high disk activity and low CPU utilization
Example: A computer running multiple memory-intensive applications simultaneously
The seven layers of the OSI model are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Physical layer: deals with the physical transmission of data
Data Link layer: responsible for error-free transfer of data between nodes
Network layer: handles routing and forwarding of data packets
Transport layer: ensures reliable delivery of data between end systems
Session layer: establishes, manages, a...
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