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Hardware test
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- 1ConcurrencyWhen two or more tasks can start, run and complete in overlapping time periods
- 2What are the types of operating systems?Stand alone, embedded and server OS
- 3What is Stand Alone operating system?It is independent of other operating systems or programs
- 4What is an Embedded operating system?It is used in special purpose applications and functions.
- 5What is a Server OS?It is designed to provide platforms for multi-user networked applications
- 6What are software drivers?Programs that allow you to interact with the hardware devices inside and outside your system.
- 7What does the ALU do in the CPU?It performs computer processor computations
- 8What does the Control Unit do inside the CPU?It controls the flow of info through the processor and coordinates the activities of other units
- 9What do Registers do inside the CPU?They are temporary memory units that store words
- 10What are Buses?The physical path of a set of wires where data flows.
- 11What are the 3 different types of Buses?Data Bus
Address bus
Control Bus - 12What does a Data Bus do?It contains the contents that have been read from memory location or to be written in memory location
- 13What does an Address Bus do?Determines location in memory that processor will read data from or write to
- 14What does a Control Bus do?Manages info flow between components
- 15What does RAID stand for?Redundant Array of Independent Disks
- 16What does RAID do?It divides and replicates data among multiple disk drives
- 17Level 0 RAID (striping)Implements a striped disk array. The data is broken down into blocks, then each block separated onto separate disk
- 18What is the minimum drives Level 0 RAID needs to implement?2 Drives
- 19What are the advantages of Level 0 RAID?Improves performance by spreading the load
Easy to implement - 20What are the disadvantages of Level 0 RAID?Not a true RAID, Not fault tolerant
If one drive fails then all data in array will be lost - 21What is Level 1 RAID? (mirroring)Twice the read rate as Level 0, but has the same write rate
- 22What is the minimum drives Level 1 RAID needs to implement?2 drives
- 23Advantages of Level 1 RAID?100% redundancy of data
Simplest storage design - 24Disadvantages of Level 1 RAID?Highest disk overhead of all RAID types
If done by software it can slow computer down through heavy usage - 25What is Level 10 RAID?It is implemented as a striped array whose segments are RAID 1 arrays
- 26Advantages of RAID 10?High input/output rate
Can sustain disk failures - 27Disadvantages of Level 10 RAID?Expensive
high overheads lower sustained performance - 28What does UPS stand for?Uninterruptible Power Supply
- 29What is UPS responsible for?It supplies continuous power to a load despite disturbances in the main power source
- 30Name 2 things UPS protects againstVoltage Surges and spikes
Voltage sags
Total power failure
Frequency differences - 31What is Benchmarking?Being able to compare different products on the same machine
- 32Challenges of Benchmarking?Companies tune their products for industry standards
Most only focus on speed - 33What does Software Benchmarking do?It uses a universal program and looks at frames per second
- 34Hardware Benchmarks?Allow user yo see how different bits of hardware compare to eachother
- 35What is Operating System Benchmark?When different operating systems are put to the test to compare how they do certain things
- 36What is Distributed Processing?a form of parallel processing
A single task split into a number of smaller tasks, each running on a separate computer then coming back together - 37What is Senquential Processing?The centralisation of applications at a data centre
- 38What is PC Virtualisation?A single computer similtaneously runs multiple virtual PC's, each with its own operating system
- 39What is Parallel Processing?Processing of instructions by dividing them among multiple processors running program in less time
- 40Advantages of Parallel Processing?Faster when handling large amounts of data
Not limited by the bus transfer rate - 41Disadvantages of Parallel Processing?Only certain data types are suitable
Costly in terms of hardware - 42What is Multi-Core Processing?Multiple cores in a single computer which improves performance
- 43What are the main reasons to virtualise your desktops?Saves time, Energy, Money
Minimizes risk of data loss - 44What is Desktop Virtualisation?The centralisation of applications at a data centre
- 45What is Server Virtualisation?Multiple logical servers hosted on the one computer
- 46What is Storage Virtualisation?The pooling of storage from multiple network storage devices into a single storage device managed by a central console
- 47What is Disaster Recovery?A comprehensive statement of consistent actions to be taken before, during and after a disaster
- 48Advantages of the Cloud?Access to info and services everywhere for free
Companies with ease of scalability - 49Disadvantages of The Cloud?Access to all info to third parties
Dependence on online services - 50What is Convergence?Bringing different technology into one system or device
- 51Example of Convergence?A Smartphone
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- Fichas sobre Hardware test, creado por Jaymie Maree el 17/02/2016.
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