A software engineering team wants to develop a new operating system for a high-frequency trading server where maximum throughput and minimal execution latency are the highest priorities. They decide to use a monolithic kernel architecture rather than a microkernel.
Based on the architectural differences between these models, which of the following statements explains why a monolithic kernel is the better choice for this specific performance-critical use case?

Question

A software engineering team wants to develop a new operating system for a high-frequency trading server where maximum throughput and minimal execution latency are the highest priorities. They decide to use a monolithic kernel architecture rather than a microkernel. 
 Based on the architectural differences between these models, which   of the following statements explains why a monolithic kernel is the better choice for this specific performance-critical use case?

Answer

It drastically reduces the kernel's footprint to roughly 6,000 lines of code, minimizing the memory overhead required to boot the server.

Answer

It executes all core operating system services (such as CPU scheduling and memory management) within a single shared space, eliminating the need for message passing between separate user-space modules.

Answer

It avoids the heavy performance overhead of constantly switching between user and kernel modes when internal OS subsystems communicate with one another.

Answer

It enforces strict modularity by keeping the file system and device drivers in user space, ensuring that a crash in the network driver does not halt the trading platform.

Answer

It requires applications to bypass the standard Application Programming Interface (API) and interact directly with the system call table, guaranteeing faster hardware access.

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