Questions

A network is nothing but 2 or more computers are grouped together to share information and resources and the that arrangement is called a topology.

Cluster network topology is not a common type.

No circular or curved motion is possible without providing the necessary centripetal force. (C) provides this and so is the answer. 

The Van Vihar National Park is located in Bhopal, the capital city of Madhya Pradesh. It covers an area of about 4.45 sq.km and is home to Bengal Tiger, Asiatic Lions, wild cats, Indian Wolf, Sloth Bear, Red Fox, Indian Jackal, Wild Dog, Mongoose, Striped Hyena, Mugger Crocodile, Gharial, Snakes, Python, etc.

A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it. A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded