Cloud Computing

Q.1 What is meant by Server Virtualization in cloud computing?
Server Virtualization in cloud computing refers to division of a physical server into smaller virtual servers for enhanced utilization of its resources.
Q.2 Describe Network Virtualization in cloud computing
Network Virtualization in cloud computing is the technique involving creation of a virtual network by combining hardware and software resources. The virtual network is accessible irrespective of the underlying physical resource.
Q.3 What is Desktop Virtualization?
Desktop Virtualization refers to virtualization of a desktop i.e. the operating system and installed application software so that the software is separate from the physical device.
Q.4 What do you understand by VDI?
VDI expands to Virtual Desktop Infrastructure and refers to the computing infrastructure which hosts a desktop environment in a virtual machine on a server.
Q.5 What do you understand by virtualization?
Virtualization is a technology which enables developing and running software-based virtual machines of same or different operating system, on a single hardware for better resource utilization.
Q.6 Illustrate Host Machine
A host machine refers to a physical machine hosting the single or multiple virtual machines.
Q.7 What is meant by Guest VM?
A guest VM or virtual machine refers to software emulation of a physical machine which runs by sharing resources with other such VMs
Q.8 Explain Hypervisor
Hypervisor is virtual machine management software which interacts with the physical hardware and acts as a bridge between virtual machines and the hardware.
Q.9 In which layer do the cloud consumers consume cloud services, as per NIST's service orchestration framework?
Top layer is the layer as per the NIST's service orchestration framework, where the cloud consumer consumes cloud services
Q.10 Identify the layer which performs resource abstraction and control according to the NIST's service orchestration framework?
Middle layer of the NIST's service orchestration framework, performs resource abstraction and control
Q.11 Which cloud service model involves the cloud provider being responsible for managing both, the applications and the infrastructure?
SaaS cloud service model involves the cloud provider being responsible for managing the applications and the infrastructure.
Q.12 The cloud consumers have very limited administrative control of the applications on the cloud, in which cloud service model?
In SaaS cloud service model, cloud consumers have very limited administrative control of the cloud applications.
Q.13 In which cloud service model does the cloud consumers do not control the underlying infrastructure but only the applications and the hosting environment settings
PaaS cloud service model enables control of applications and the hosting environment settings by the cloud consumer
Q.14 The cloud consumers can control the hosting environment and operating systems in which cloud service model?
IaaS cloud service model provides the cloud consumers to control the hosting environment as well as the operating system.
Q.15 What do you understand by CaaS in cloud computing?
CaaS in cloud computing expands to Communication as a Service which provides enterprise level communication services on cloud without physical hardware. The services usually include VPNs, PBX, Unified Communications, etc.
Q.16 What do you understand by a hybrid cloud?
A hybrid cloud refers to combining different cloud service models as well as on-premises and on cloud resources being used in a single interface for management.
Q.17 Which cloud model involves the cloud infrastructure exclusive to a specific company only?
Under private cloud, the cloud infrastructure is exclusive to a specific company.
Q.18 Which cloud model involves cloud infrastructure being used by users with shared concerns?
Community cloud model provides cloud infrastructure to by users with shared concerns and forming a community around it.
Q.19 Which cloud model provides cloud services to be used by general public?
Public cloud enables general public to use cloud services.
Q.20 Which cloud model is composed of two or more distinct cloud infrastructures like on-premises and cloud?
Hybrid cloud is composed of two or more distinct cloud infrastructures.
Q.21 What provides economies of scale by cloud providers?
Resource pooling helps cloud providers, have economies of scale in the computing infrastructure.
Q.22 How does cloud providers provide multitenancy in cloud computing?
Multitenancy in cloud computing is provided due to resource pooling hence multiple tenants can be provisioned on a single machine.
Q.23 How does cloud provider offer a transparent billing?
Measured service feature enables transparent billing between cloud provider and cloud consumer.
Q.24 What refers to addition of more of the same computing resource?
Scale out refers to addition of more of the same computing resource
Q.25 What is addition of bigger computing resource in cloud computing refers to?
Scale up means addition of bigger computing resource
Q.26 Why the traditional computing does is considered expensive?
Due to high capital as well as ongoing working expenditure along with downtime periods due to periodic maintenance makes the traditional computing expensive
Q.27 List the file which has virtual machine BIOS configuration in VMware
The .nvram file has virtual machine BIOS configuration in VMware.
Q.28 How many CPU cores can be provisioned on a VM with in GCP?
A maximum of 96 cores can be provisioned on a VM within GCP
Q.29 List the default domain applicable for GAE applications
The default domain is appspot.com
Q.30 What permissions level is granted to every user created in the AWS's IAM system
No permissions level is granted to every user created in the AWS's IAM system
Q.31 Which port number will be used if you need to connect by FTP?
21 port number is used for FTP.
Q.32 List the tool for a DNS zone transfer on Windows
nslookup is the tool for a DNS zone transfer on Windows
Q.33 Which web attack type, refers to receiving a flood of packets for a TCP connection to a server?
Denial of Service refers to receiving a flood of packets for a TCP connection to a server
Q.34 What does SLA for cloud computing includes?
SLA for cloud computing includes the scope, service availability and service performance.
Q.35 Explain virtual service desk
A virtual service desk is service desk where the agents serving it, may be spread in different geographies.
Q.36 Salesforce is an example of which cloud model?
SaaS cloud model is provided by Salesforce
Q.37 Microsoft lync refers to which cloud model?
Microsoft lync refers to SaaS cloud model.
Q.38 How does cloud provider resolves and addresses service outage in a cloud environment?
Root-cause analysis are used for resolution and SLAs address service outage in a cloud environment
Q.39 How will you manage conflict?
Various conflict resolution techniques like collaborating, forcing, accommodating, avoiding or compromising are used to resolve a conflict depending upon the situation.
Q.40 How to manage subordinate's under performance?
Performing root cause analysis will identify the issue for under performance. Addressing the issue and also involving the subordinate will address the under performance
Q.41 How to prioritize tasks?
Task priority depends upon relevance and urgency. Other factors of consideration are cost involved and resource availability.
Q.42 How to delegate tasks?
Task delegation depends upon the skill level of the team member, availability and their past performance.
Q.43 By using a cloud consumer may lose control over which aspects of computing and resources?
A cloud consumer may lose control on security, storage and even privacy as against on-premises computing resource.
Q.44 How SOA differs from cloud computing?
SOA exists within the firewall
Q.45 List the cloud storage infrastructure function which is beneficial for public cloud computing
Clustered trivial database is beneficial for public cloud computing
Q.46 A public cloud infrastructure faces which critical business risk?
Legal and regulatory non-compliance related risk is of prime importance for a public cloud
Q.47 How does rapid service provisioning benefits to cloud provider?
Rapid service provisioning enables faster access to workload services
Q.48 How will physically separated hosts can communicate though in the same broadcast domain?
By using the VLAN or Virtual Local Area Network both can communicate
Q.49 A cloud-based application should have which type of inter-component coupling?
Loose coupling is suitable for cloud-based application.
Q.50 What enables full utilization of the pooled resources incloud infrastructure?
Automatic deprovisioning enables full utilization of the pooled resources
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