Virtualization and Cloud Computing Flashcards
Which of the following involves the vendor providing the entire solution?
IaaS
SaaS
PaaS
SaaS
Software as a service (SaaS) involves the vendor providing the entire solution. This includes the operating system, the infrastructure software, and the application. Infrastructure as a service (IaaS) provides only the hardware platform to the customer. Platform as a service (PaaS) provides a development environment. Security Information and Event Management (SIEM) is a system that aggregates all log files and analyzes them in real time for attacks
When a company pays another company to host and manage a cloud environment, it is called what?
Public cloud
Hybrid cloud
Community cloud
Public cloud
When a company pays another company to host and manage a cloud environment, it is called a public cloud solution. If the company hosts this environment itself, it is a private cloud solution. A hybrid cloud solution is one in which both public and private clouds are part of the solution. A community cloud is one in which multiple entities use the cloud
Which of the following is the ability to add resources as needed on the fly and release those resources when they are no longer required?
On-demand
Rapid elasticity
Virtual sharing
Rapid elasticity
One of the advantages of a cloud environment is the ability to add resources as needed on the fly and release those resources when they are no longer required. This makes for more efficient use of resources, placing them where needed at any particular point in time. These include CPU and memory resources. This is called rapid elasticity because it occurs automatically according to the rules for resource sharing that have been deployed. On-demand refers to the ability of the customer to add resources as needed. Virtual sharing and stretched resources are not terms used when discussing the cloud
In which VDI model are all desktop instances stored in a single server, requiring significant processing power on the server?
Centralized
Hosted
Remote
Centralized
There are three models for implementing VDI:
Centralized model: All desktop instances are stored in a single server, requiring significant processing power on the server.
Hosted model: Desktops are maintained by a service provider. This model eliminates capital cost and is instead subject to operation cost.
Remote virtual desktops model: An image is copied to the local machine, making a constant network connection unnecessary.
There is no local model.
Which of the following involves the vendor providing the hardware platform or data center and the software running on the platform?
IaaS
SaaS
PaaS
PaaS
Platform as a service (PaaS) involves the vendor providing the hardware platform or data center and the software running on the platform. This includes the operating systems and infrastructure software. The company is still involved in managing the system. Software as a service (SaaS) involves the vendor providing the entire solution. This includes the operating system, the infrastructure software, and the application. Infrastructure as a service (IaaS) provides only the hardware platform to the customer. Security Information and Event Management (SIEM) is a system that aggregates all log files and analyzes them in real time for attacks
What is the benefit derived from using hardware-assisted virtualization?
Better performance
Better security
Less power consumption
Better performance
Some of the virtualization products, however (such as Microsoft’s Hyper-V, Windows 7 Virtual PC, and Windows 8 Client Hyper-V), require that the motherboard support hardware-assisted virtualization. The benefit derived from using hardware-assisted virtualization is it reduces overhead and improves performance. It does not improve security, lower power consumption, or ease troubleshooting
Which of the following is the software that allows the VMs to exist?
DIMM
Hypervisor
Azureware
Hypervisor
The hypervisor is the software that allows the VMs to exist. Dual inline memory module (DIMM) is a type of memory. There is no software called Azureware, and network address translation is a service that translates private IP addresses to public ones
Which hypervisor type runs directly on the host’s hardware?
Type I
Type II
Hybrid
Type I
The hypervisor that manages the distribution of the physical server’s resources can be either Type I or Type II. A Type I hypervisor (or native, bare metal) runs directly on the host’s hardware to control the hardware and to manage guest operating systems. Type 2 runs on top of an operating system. There is no hybrid or core type
Which of the following is an example of a Type II hypervisor?
Oracle VirtualBox
VMware NSX
Hyper-V
Oracle VirtualBox
A Type II hypervisor runs within a conventional operating system environment. With the hypervisor layer as a distinct second software level, guest operating systems run at the third level above the hardware. VMware Workstation Citrix Xen Server and VirtualBox exemplify Type II hypervisors
Which of the following hypervisors runs within a conventional operating system?
Type I
Type II
Type III
Type II
A Type II hypervisor runs within a conventional operating system environment. With the hypervisor layer as a distinct second software level, guest operating systems run at the third level above the hardware. Container-based is a different approach to virtualization that holds instances in containers. There is no Type III
