Advantmed Interview Questions and Answers

Repeater, Bridge, Router, and Gateway are network devices that operate at different layers of the OSI model. An adaptive learning bridge is a bridge that uses machine learning algorithms to optimize network performance.

• Repeater: Operates at the physical layer of the OSI model, regenerates incoming signal to extend the network's reach.

• Bridge: Operates at the data link layer, connects two different network segments and filters traffic based on MAC addresses.

• Router: Operates at ...read more

The time taken for a packet of size to travel in an ethernet depends on various factors.

• The time taken for a packet to travel in an ethernet network is influenced by factors such as network congestion, distance between sender and receiver, and the speed of the network.

• For example, a small packet may take microseconds to travel within a local network, while a larger packet may take milliseconds to reach its destination.

• Ethernet networks typically have a maximum transmission un...read more

Fork and exec are implemented as two different calls to allow for flexibility and efficiency in process creation and execution.

• Fork creates a new process by duplicating the existing process, including its memory and resources.

• Exec replaces the current process with a new program, loading it into the current process's memory space.

• Separating fork and exec allows for more control over the creation and execution of processes.

• For example, a program can fork multiple processes and ...read more

Enforcing consistency of data structures in a multiuser environment requires implementing strict validation rules and utilizing database transactions.

• Implement strict validation rules to ensure data entered by users conforms to the required structure.

• Utilize database transactions to ensure that changes to the data structures are atomic and consistent.

• Use locking mechanisms to prevent concurrent access and modification of the data structures by multiple users.

List of process calls generated in Unix from creation to termination

• Fork: Creates a new process by duplicating the existing process

• Exec: Replaces the current process image with a new one

• Wait: Parent process waits for the child process to terminate

• Exit: Terminates the process

• Kill: Sends a signal to a process to terminate it