Cloud Computing Set 18 MCQs

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