Section B

What is cluster computing?

• Where more than one computer can access the resources of a single powerful supercomputer.

• Where a computer has more than one central processing unit.

• Where a processor can access program instructions and data from two separate memory spaces.

• Where more than one computer is connected together and will appear & perform as a single system.

What architecture uses separate memory spaces for data and instructions?

• Von Neumann Architecture

• Harvard Architecture

What is the instruction set?

• It is a small amount of fast memory located on the CPU.

• It defines what commands the CPU is capable of performing.

• It is how a microarchitecture is implemented in a CPU.

• It is the number of bits that the CPU can process simultaneously.

Which of the following statements best describes multi-processing?

• Allowing the CPU to switch between two threads while data is being fetched.

• Using multi-core CPUs that can independently process instructions.

• A small amount of memory located on the CPU.

• Using different parts of the CPU to perform different stages of multiple instructions simultaneously.

What register holds the address for the next instruction that is going to be processed?

• Memory Data Register

• Current Instruction Register

• Memory Address Register

• Program Counter

What type of device’s CPU is part of a system on a chip?

• Embedded/Mobile

• Microcomputer

• Server

What type of instruction set do mobile CPUs usually use?

• RISC

• CISC

Why is cluster computing highly scalable?

• Each CPU has its own memory and bus.

• We can add machines to the cluster to increase processing power.

• There is separate RAM used for instructions and data.

• It isn't highly scalable.

Which of the following is the main reason most modern supercomputers use cluster computing?

• It provides greater compatibility with hardware and software.

• It provides better performance by spreading the load over multiple machines.

• Equivalently powerful single devices would be much more expensive.

• They don't use cluster computing.

Why can you usually not overclock a server CPU?

• Servers don't need fast clock speeds.

• Servers need to run cool and overclocking produces too much heat.

• Servers need high reliability, which overclocking reduces.

• None of the above.