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This set of Cloud Computing Multiple Choice Questions & Answers (MCQs) focuses on Cloud Computing Set 18

Q1 | The usual BUS structure used to connect the I/O devices is                        
  • star bus structure
  • multiple bus structure
  • single bus structure
  • node to node bus structure
Q2 | In intel’s IA-32 architecture there is a separate 16 bit address space for the I/O devices.
  • false
  • true
Q3 | 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
Q4 | 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
Q5 | 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
Q6 | 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
Q7 | The method which offers higher speeds of I/O transfers is                        
  • interrupts
  • memory mapping
  • program-controlled i/o
  • dma
Q8 | The process wherein the processor constantly checks the status flags is called as
  • polling
  • inspection
  • reviewing
  • echoing
Q9 | 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
Q10 | 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
Q11 | 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
Q12 | 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
Q13 | 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
Q14 | 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
Q15 | 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
Q16 | 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
Q17 | 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
Q18 | Point out the correct statement.
  • service level agreements (slas) is small aspect of cloud computing
  • cloud computing does not have impact on software licensing
  • cloud computing presents new opportunities to users and developers
  • all of the mentioned
Q19 | Applications that work with cloud computing that have low margins and usually low risk are                            
  • high touch
  • low touch
  • moderate touch
  • all of the mentioned
Q20 | A service that concentrates on hardware follows the                    as a Service model.
  • iaas
  • caas
  • paas
  • all of the mentioned
Q21 | Point out the wrong statement.
  • a cloud is defined as the combination of the infrastructure of a datacenter with the ability to provision hardware and software
  • high touch applications are best done on- premises
  • the google app engine follows iaas
  • none of the mentioned
Q22 | When you add a software stack, such as an operating system and applications to the service, the model shifts to            model.
  • saas
  • paas
  • iaas
  • all of the mentioned
Q23 | Which of the following is the most refined and restrictive service model?
  • iaas
  • caas
  • paas
  • all of the mentioned
Q24 |                is a pay-as-you-go model matches resources to need on an ongoing basis.
  • utility
  • elasticity
  • low barrier to entry
  • all of the mentioned
Q25 |                feature allows you to optimize your system and capture all possible transactions.
  • scalability
  • reliability
  • elasticity
  • none of the mentioned