Essay Questions for 'Cloud Computing and Service ...

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Essay Questions for ‘Cloud Computing and Service Management’


Write short essay (8
-
10 pages) on one of the questions below, with 30 minutes
seminar presentation

to

Prof. Leymann/Prof. Mitschang

If 2 or more students cooperate, each individual contribution

needs to be easily
identifiable
.
Questions:

1.

Breiter: Describe the
concepts of a
Common Cloud Management Platform
Reference Architecture (CCMP RA)

and discuss its value
. Give a brief
overview of the CCMP RA
-

what are the technical workproducts (TWPs)
whi
ch the RA contains. Briefly describe the TWPs. Highlight some examples
of Cloud Services which can be managed by the CCMP RA.

2.

Schlatter: With Hybrid Clouds the question is no longer "To Cloud or not to
Cloud", i.e., the question is no longer only what work
loads are suitable, or not
suitable for the Cloud. Instead, enterprises must solve multi
-
dimensional
optimization problems: what should they build and host themselves, in
traditional IT or in on
-
premise private cloud environments, and what should
they get
from which of the various off
-
premise IaaS, PaaS, or SaaS cloud
service providers.

a.

Describe an imaginary example of that optimization problem:

b.

What is the goal function, i.e., what is to be achieved? What should be
maximized, what should be minimized? Give

examples of both
quantitative and qualitative measures.

c.

What are the constraints? Think of examples of non
-
functional
requirements that may have to be met in a given situation, and that
may limit the degrees of freedom.

d.

What are the decision variables, i.
e., what are the Points
-
of
-
Variability,
what needs to be decided? Give examples of the cloud service
characteristics that need to be taken into account.

3.

Kloeckner: Discuss the importance of multi
-
tenancy for
clouds
, and the
various ways of achieving it in
the layers from Virtualization to Middleware.
Discuss security and performance concerns, discuss billing/metering.
Describe at least one layer in detail (for instance, discuss implementation for
database)

4.

Kloeckner: Relaxed consistency


discuss the variou
s approaches described
in the papers of Hohpe, Vogels and others. Advantages, disadvantages.
Discuss one implementation in detail

(for instance, persistence or messaging
with examples like Dynamo
, Cassandra

or SQS)
.

5.

Kloeckner: Discuss the properties of con
tent
-
centric applications with an in
-
depth description of Hadoop and its applications, compare to Google

6.

Kloeckner: In
-
depth description and analysis of MS Azure
, describe choices
for the PaaS services (consistency etc.)

7.

Kloeckner:
Discuss

warehouse scale
computing, pros and cons of commodity
infrastructure
-

Barroso/Hoelzl

8.

Kloeckner


Discuss the main considerations for performance of clouds
. Look
at the system aspects, in particular storage and networking bandwidth. Take
an example use case/task (like pr
ovisioning virtual machines of various
sizes) and discuss alternatives for implementation

9.

Kloeckner


Discuss the major elements of cloud economics (including
references like ‘Above the Clouds’
)

10.

Breh
-

What are the approaches to ad
o
pt the cloud computing
concepts ?

a.

Discuss the approaches considering cultural and organizational
aspects?

b.

What are the potential integration points of cloud processes into an
enterprise?

c.

Why are they important?

11.

Noll: Storage

a.

What are the requirements/goals for consumers and for
providers of
storage services in a cloud environment?

b.

What are the benefits of storage virtualization and what are the pre
-
requisites of using storage virtualization?

c.

Describe the main functional areas needed for storage management in
cloud environments.

12.

S
chunter: Security


1
-

Pick a company that offers well
-
defined services over the Internet

2
-

Pick at most 3 services and perform a security risk analysis of

implementing these services on an infrastructure cloud (e.g. Amazon)

3
-

Pick one service and elab
orate the security objectives, risks


and whether you would accept (why?) or mitigate (how?) those risks

4
-

Deciding whether you go cloud or not at a certain point in time.
.

13.

Michael Behrendt


Cloud Service Creation

a.

Describe how to create a cloud
service along the "12 steps" by using
an example of your choice. Include considerations & decisions made at
each step.

b.

Creating cloud services
--

discuss the role of runtime and management
functions, their relationship and motivations for consuming them as

hosted offerings vs. installing them

on
-
premise

c.

Discuss considerations to be made for defining the management scope in the
context of creating a cloud service