WEEK 3 2025

Question 1

NOT SLA requirements of PaaS cloud delivery model

Answer 1

Data Retention & Deletion
Machine-Readable SLAs

Question 2

True reg. Penalty cost

Answer 2

If demand is flat, penalty is equal to 0
The penalty cost for exponential demand is exponential

Question 3

(T/F)Row-oriented storage is efficient for data-warehouse workloads

Answer 3

False

Question 4

Example of cloud SLA with IaaS delivery model

Answer 4

Amazon EC2

Question 5

Which of the following OpenStack components is used for block storage services

Answer 5

Cinder

Question 6

In cloud, service downtime is 30 minutes and availability of the service is 0.80. What is the service uptime?

Answer 6

150 minutes

Question 7

(T/F) In Google File System (GFS), the master maintains regular communication with the chunk servers.

Answer 7

True

Question 8

Expected SLA parameters for SaaS

Answer 8

Reliability
Usability
Customizability

Question 9

Correct options regarding SLA

Answer 9

SLA contains SLO
KPIs are aggregated to SLO

Question 10

S1: In OpenStack block storage, the stored objects persist until the VM is terminated
S2: In OpenStack ephemeral storage, the stored objects are accessible from within VM as a local file system

Answer 10

S2 is correct and S1 is incorrect