Cloud Computing Set 32
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This set of Cloud Computing Multiple Choice Questions & Answers (MCQs) focuses on Cloud Computing Set 32
Q1 | The advantage of I/O mapped devices to memory mapped is
- the former offers faster transfer of data
- the devices connected using i/o mapping have a bigger buffer space
- the devices have to deal with fewer address lines
- no advantage as such
Q2 | The system is notified of a read or write operation by
- appending an extra bit of the address
- enabling the read or write bits of the devices
- raising an appropriate interrupt signal
- sending a special signal along the bus
Q3 | To overcome the lag in the operating speeds of the I/O device and the processor we use
- buffer spaces
- status flags
- interrupt signals
- exceptions
Q4 | The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is?
- exceptions
- signal handling
- interrupts
- dma
Q5 | The method which offers higher speeds of I/O transfers is
- interrupts
- memory mapping
- program-controlled i/o
- dma
Q6 | The process wherein the processor constantly checks the status flags is called as
- polling
- inspection
- reviewing
- echoing
Q7 | The purpose of backup is:
- to restore a computer to an operational state following a disaster
- to restore small numbers of files after they have been accidentally deleted
- to restore one among many version of the same file for multiple backup environment
- all of the mentioned
Q8 | Backup of the source data can be created
- on the same device
- on another device
- at some other location
- all of the mentioned
Q9 | Which of the following backup technique is most space efficient?
- full backup
- incremental backup
- differential backup
- all of the mentioned
Q10 | Which of the following statements are true?
- data can be recovered fastest in online backup
- tape library is an example of nearline storage
- data recovery can take hours for offline backup
- all of the mentioned
Q11 | Which of the following qualifies as best DR (Disaster Recovery) site?
- dr site in the same campus
- dr site in the same city
- dr site in the same country
- dr site in a different country
Q12 | Which of the following techniques can be used for optimizing backed up data space?
- encryption and deduplication
- compression and deduplication
- authentication and deduplication
- deduplication only
Q13 | To decide on a backup strategy for your organization, which of the following should you consider?
- rpo (recovery point objective)
- rto (recovery time objective)
- both rpo & rto
- none of the mentioned
Q14 | Which of the following can be used for reducing recovery time?
- automatic failover
- by taking backup on a faster device
- taking multiple backups – one in same location, another at different location
- all of the mentioned
Q15 | Which of the following is false?
- the more important the data, the greater the need for backing it up
- a backup is as useful as its associated restore strategy
- storing the backup copy near to its original site is best strategy
- automated backup and scheduling is preferred over manual operations
Q16 | Which of the following is Backup software?
- amanda
- bacula
- ibm tivoli storage manager
- all of the mentioned
Q17 | Which of the following is incorrect?
- a layered-style program is divided into an array of modules or layers
- each layer provides services to the layer “below” and makes use of services provided by the layer “above”
- all of the mentioned
- none of the mentioned
Q18 | What is Relaxed Layered Style?
- each layer can be constrained to use only the layer directly below it
- sometimes this constraint is relaxed slightly to allow each layer to use all the layers below it
- all of the mentioned
- none of the mentioned
Q19 | Which of the following is correct?
- module a uses module b if a correct version of b must be present for a to execute correctly
- module a calls (or invokes ) module b if b triggers execution of a
- all of the mentioned
- none of the mentioned
Q20 | Which of the following is true with respect to layered architecture?
- each layer is allowed to depend on the layer above it being present and correct
- a layer may call other layers above and below it, as long as it uses them
- all of the mentioned
- none of the mentioned
Q21 | What is Onion diagram illustrates?
- it illustrates the connection between the layers in communications protocols, such as the international standards organization open systems interconnection (iso osi) model,or the layers in user interface and windowing systems, such as the x window system
- it often illustrates operating system layers, with the kernel at the core
- all of the mentioned
- none of the mentioned
Q22 | In particular, layers have which of the following characteristics?
- layers are by definition highly cohesive, thus satisfying the principle of cohesion
- layers doesn’t support information hiding
- layers are constrained to use only above layers
- all of the mentioned
Q23 | What are the drawbacks for Layers?
- it is often necessary to pass data through many layers, which can slow performance significantly
- layers support information hiding
- multi-layered programs can be hard to debug because operations tend to be implemented through a series of calls across layers
- none of the mentioned
Q24 | Which of the following is correct?
- layers are not strongly coupled to the layers above them
- each layer is strongly coupled only to the layer immediately below it
- overall layered-style architectures are loosely coupled
- all of the mentioned
Q25 | Which of the following is one of the unique attributes of Cloud Computing?
- utility type of delivery
- elasticity
- low barrier to entry
- all of the mentioned