Homework Help: Questions and Answers: This model is a slight variation of the microkernel structure its communication is carried out by passing messages.
a. Exokernel
b. Layers
c. Virtual machine
d. Client – server
Answer:
First, let’s understand what question is about: The question is asking about a model in computer science where communication is carried out by passing messages.
To solve this question, let’s analyze the given information and compare it with the characteristics of each option.
Given Options: Step by Step Answering
a. Exokernel
- This is a type of operating system architecture that allows applications more direct access to hardware resources. Exokernels do not primarily use message passing for communication; instead, they focus on resource allocation.
b. Layers
- Layered architectures organize systems into layers, each providing services to the layer above it. While layered systems can use message passing, it’s not their defining characteristic.
c. Virtual machine
- A virtual machine provides an emulation of a computer system. Communication in virtual machines can be done through message passing, but they often rely on more complex methods like shared memory or hypercalls.
d. Client-server
- This architecture involves clients requesting services from servers. Communication between clients and servers is typically done by passing messages (requests and responses), making this option a model where communication is carried out by passing messages.
Final Answer:
Based on the above analysis, the correct answer is:
d. Client-server
The client-server model is known for its message-passing communication between clients and servers.
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