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WorksheetsNPTEL-CLOUD COMPUTING-PRACTICE TEST-2 2025
Total questions: 50
Worksheet time: 51mins
In distributed computing, each processor has its own memory
True
False
Which of the following is the Cloud Platform provided by Amazon?
AWS
Cloudera
Azure
All of the mentioned
In which cloud service model, virtual machines are provisioned?
SaaS
PaaS
IaaS
None of these
Peer to Peer computing is a distributed computing paradigm.
True
False
HTTP uses __________ port number for communication and HTTPS uses ________ for communication.
443,80
80,443
80,80
443,443
Which of the following service model is owned in terms of infrastructure by both vendor and
customer?
Public
Private
Hybrid
None of the mentioned
Which of the following model type is not trusted in terms of security?
Public
Private
Hybrid
None of the mentioned
Point out the wrong statement.
Abstraction enables the key benefit of cloud computing: shared, ubiquitous access
Virtualization assigns a logical name for a physical resource and then provides a pointer to that physical resource when a request is made
All cloud computing applications combine their resources into pools that can be assigned on demand to users
All of the mentioned
W3C supports an XML-based alternative to DTD, called (a)
Which of the following elements is an empty element?
<memo></memo>
<br/>
<test type='hard'/>
None of the above are empty elements
Which of the following is/are correct?
SLA contains SLO
SLO contains SLA
Multiple SLAs are aggregated to KPI
KPIs are aggregated to SLO
Which of the following is/are QoS Parameters of Cloud SLA?
Security
Privacy
Trust
None of the above
What is the parallel efficiency(Eff) of an algorithm? Where a task takes time T in
uniprocessor system, P is number of processors, M is time taken by each processor.
Eff = (T*P)/M
Eff = T*(M/P)
Eff = T/(P*M)
Eff = T*P*M
Which of the following element(s) in Azure stand(s) for management service?
config
application
virtual machines
none of the above
Point out the correct statement(s):
The Windows Azure Platform allows a developer to modify his application so it can run in the cloud on virtual machines hosted in Microsoft datacenters
Windows Azure serves as a cloud operating system
With Azure’s architecture, an application can run locally, run in the cloud, or some
combination of both
None of the above
In OpenStack, when a VM is terminated, which of the following resources are freed?
Ephemeral and persistent storage, all IPs, RAM and vCPUs
Ephemeral and persistent storage only
Ephemeral storage, all IPs, RAM and vCPUs
None
Match the following:
List – I
A) Google App Engine
B) Google Cloud End Points
C) Google Compute Engine
List – II
1. You can create and run virtual machines on Google infrastructure
2. You can migrate your web app to Google Cloud Platform for better performance
3. You can scale your app according to the demand/ service requests
A-2, B-3, C-1
A-3, B-1, C-2
A-3, B-2, C-1
None of the above
What core function(s) do(es) Neutron perform?
Networking
Compute
Storage
None of the above
Which service(s) in Azure is/are used to manage resources in Azure?
Application Insights
Azure Resource Manager
Azure Portal
Log Analytics
When load increases, VM management can be done by
Schedule new VMs to new nodes
Shutdown unused nodes
Schedule new VMs to the same node
None of the above
Cloudlet is a trusted, resource-rich computer or cluster of computers
which is not connected through internet
which is well connected through internet
which is unavailable for use by nearby mobile devices
which is available for use by nearby mobile devices
Which of the following is correct about code offloading
It offloading the code to the remote server and executing it
It increases latency by using multi-hop network
It decreases latency by using a single-hop network
It decreases battery consumption by using Wi-Fi or short-range radio
Challenges in Mobile Cloud Computing are
High bandwidth, Heterogeneity
Service availability, Homogeneity
Low bandwidth, Heterogeneity
Low bandwidth, Service availability
Statement 1: Deficit of effective handoff mechanisms in WiFi decreases the number of
packet losses in mobile communication
Statement 2: Increment of physical distance between the user and the cloud resources increases
delays in mobile communication
Statement 1 is True and Statement 2 is False
Statement 2 is True and Statement 1 is False
Both statements are True
Both statements are False
Which of the following statement(s) is/are True?
Fog computing enables some of transactions and resources at the edge of the cloud
Fog computing enables all of transactions and resources at the edge of the cloud
Fog computing decreases the need for bandwidth by sending every bit of information over
cloud channels.
Fog computing increases the need for bandwidth by sending every bit of information over
cloud channels.
Statement 1: Geospatial cloud ease the sharing of geospatial data among organizations.
Statement 2: Geospatial cloud make GIS decision easily
Statement 1 is True and Statement 2 is False
Statement 2 is True and Statement 1 is False
Both statements are True
Both statements are False
Which of the following(s) is/are aspect(s) of IoT systems?
Homogeneous systems
Functions in Real Time
Un-scalable
Widely Distributed
The “Grid” in the distributed grid computing paradigm links together power plants of different kinds.
True
False
Which one of the following is/are the advantage(s) of cloud computing?
Resource pooling
It requires an always-on internet connection.
Ubiquitous
On-demand payment policy
Web access to commercial software is one of the SaaS (Software as a Service) characteristics in the cloud computing paradigm.
True
False
Example(s) of PaaS (Platform as a Service) tool(s) is(are):
Microsoft Powerpoint
Microsoft Azure
Google App Engine
Google mail service
IaaS (Infrastructure as a Service) in cloud computing delivers
(i) storage;
(ii) servers.
Only (i)
Only (ii)
Both (i) and (ii)
Neither (i) nor (ii)
What is/are the main requirement(s) of a Cloud Service Provider (CSP)?
Increase productivity
Increase agility
Increase cost
Decrease cost
Example(s) of Public cloud is(are)
Eucalyptus
Ubuntu Enterprise Cloud (UEC)
Microsoft ECI data centre
Amazon EC2
________________ is an XML language for processing XML.
Javascript
ECMA script
CSS
XSLT
Cloud Manager is the public access point to the cloud where subscribers sign up for accounts.
True
False
___________ generally stores the cloud subscriber’s metadata like user credentials and OS images.
SLA (Service Level Agreement)
Cloud Manager
DOS (Data Object storage)
MOS (Metadata Object storage)
Which of these is responsible for the operation of a collection of computers that are connected via high speed local area networks in the cloud computing paradigm?
Cloud Manager
Computer Manager
Cluster Manager
None of these
Hypervisor is also known as_________
Cluster Manager
Virtual Machine Handler
Virtual Machine Manager
Virtual Machine Monitor
In a cloud, total service uptime is 195 minutes and availability of the service is 0.95. What is the service downtime?
(a)
Which of the following database system/architecture follow(s) Quorum protocol for a large number of concurrent reads & writes?
BigTable
Dynamo
Datastore
Google File System (GFS)
Azure app service plans define:
Instance size
Security
Region
Scale count
____________ is a formal contract between a Service Provider (SP) and a Service Consumer (SC).
SLA
KPI
SLO
Utility Premium
If demand is flat, the penalty will be linear.
True
False
Interception is an attack on:
Integrity
Availability
Confidentiality
Authenticity
Replay attack, which is the passive capture of a data unit and its subsequent retransmission to produce an unauthorized effect, is an active attack.
True
False
Which of the following Open-source tools is/are used to perform TCP connect probes in Amazon EC2 platform?
wget
nmap
ifconfig
hping
List the motivation(s) in having a ‘middle man’ or intelligent broker for cloud marketplace:
Trustworthiness of the provider.
Monitoring of services.
Ensuring vendor lock-in.
Flexible selection of cloud provider.
Fog Computing has (a) probability to attack on data enrouter and required (b) number of server nodes than Cloud Computing.
lower , less
lower, large
higher, less
higher, large
What does “ps” signify as per Container terminology?
List of all containers
List of all running containers
List of all stopped containers
List of all warm containers
