Sir Ganga Ram Hospital Interview Questions and Answers

Hermitian operator is a mathematical concept in linear algebra and quantum mechanics where the operator is equal to its own conjugate transpose.

• Hermitian operator is a linear operator that is equal to its own conjugate transpose.

• In quantum mechanics, observables are represented by Hermitian operators.

• Hermitian operators have real eigenvalues and orthogonal eigenvectors.

• Example: The position operator in quantum mechanics is a Hermitian operator.

Forced vibration is when a system is subjected to an external force causing it to oscillate at a frequency different from its natural frequency.

• A common example of forced vibration is a child on a swing being pushed by a parent at a frequency different from the swing's natural frequency.

• Another example is a tuning fork being struck with a hammer, causing it to vibrate at a frequency determined by the force of the strike.

• Forced vibration can also be seen in musical instruments...read more

Pipelining in RISC processor involves breaking down instructions into smaller stages to improve performance.

• Pipelining allows multiple instructions to be processed simultaneously in different stages of execution.

• Each stage in the pipeline performs a specific task, such as instruction fetch, decode, execute, and write back.

• By overlapping the execution of multiple instructions, pipelining reduces the overall execution time of a program.

• Example: In a RISC processor, the MIPS arc...read more

The biggest security challenge in IoT is the vulnerability of connected devices to cyber attacks.

• Lack of standard security protocols in IoT devices

• Inadequate encryption and authentication mechanisms

• Difficulty in updating and patching IoT devices

• Potential for data breaches and privacy violations

• Risk of IoT devices being hijacked for botnet attacks

ACID properties are a set of properties that guarantee database transactions are processed reliably.

• ACID stands for Atomicity, Consistency, Isolation, Durability

• Atomicity ensures that either all operations in a transaction are completed or none are

• Consistency ensures that the database remains in a consistent state before and after the transaction

• Isolation ensures that transactions are independent of each other

• Durability ensures that once a transaction is committed, it will pe...read more

Various technologies such as artificial intelligence, blockchain, and Internet of Things are currently being utilized in the market.

• Artificial intelligence is being used for data analysis and automation.

• Blockchain technology is used for secure transactions and smart contracts.

• Internet of Things is utilized for connecting devices and collecting data.

• Cloud computing is popular for storage and processing power.

• Virtual reality and augmented reality are used for immersive experien...read more

Short pitch factor is a measure of the ability of a player to hit the ball early or late in its flight.

• Short pitch factor is calculated by dividing the distance from the pitch to the point of impact by the total distance of the pitch.

• A high short pitch factor indicates that the player is able to hit the ball early in its flight, while a low factor indicates hitting the ball late.

• Short pitch factor is important in cricket as it helps players anticipate the trajectory of the ba...read more