4.1 & 4.2 CQ Flashcards
Which of the following types of cloud services offers e-mail through a web browser?
A. SaaS
B. IaaS
C. PaaS
D. Community cloud
A. Software as a service (SaaS) is the most commonly recognized cloud service; it allows users to use applications to access data that is stored on the Internet by a third party. Infrastructure as a service (IaaS) is a service that offers computer networking, storage, load balancing, routing, and VM hosting. Platform as a service (PaaS) is used for easy-to-configure operating systems and on-demand computing. A community cloud is a mix of public and private clouds, but one where multiple organizations can share the public portion.
Your organization requires more control over its data and infrastructure. Money is apparently not an issue. There are only two admins and about 30 users that will have access to the data on the cloud. Which of the following types of clouds is the best option?
A. Public
B. Private
C. Hybrid
D. Community
B. The best option listed is a private cloud. This gives the most control over data and resources in an environment where there are limited users (and a healthy budget). These resources could be entirely internal, or a portion of them could also be provided by a third party. Public cloud technology is used for the general public to access applications over the Internet. Hybrid is a mixture of the two, but not necessary in this situation because of the healthy budget and the limited number of users. Community cloud is similar to hybrid but is meant for multiple organizations that share data, which is not necessary in this scenario.
You require the ability to add on to your cloud-based network whenever necessary, quickly and efficiently. What is this referring to?
A. Measured services
B. Metered services
C. Rapid elasticity
D. On-demand service
C. Rapid elasticity is the ability to build your cloud-based network, or extend upon an existing one, quickly and efficiently. Measured services is when a provider monitors a customer’s services used so that the customer can be properly billed. Metered services is when the customer can access as many resources as needed but only be billed for what was accessed. On-demand service means that the cloud service is available at all times. The leaders of a successful organization don’t care what it takes; they simply want high-speed, secure access to services 24/7.
Of the following listed technologies, which one should you select if you want to run an instance of Ubuntu Linux within your Windows 10 Pro workstation?
A. Type 1
B. Type 2
C. Bare metal
D. Emulator
B. You would need to run virtualization software that includes a Type 2 hypervisor such as Windows 10 Hyper-V, VMware Workstation, or VirtualBox. Type 1 hypervisors are used on servers; they are also known as bare metal because they allow virtual machines to access the computer hardware directly. Examples include VMware vSphere and Windows Server–based Hyper-V. An emulator is something that imitates hardware and firmware, such as an emulated BIOS. Emulators do not use hypervisors.
Which of the following is the greatest risk of a virtual computer?
A. If a virtual computer fails, all other virtual computers immediately go offline.
B. If a virtual computer fails, the physical server goes offline.
C. If the physical server fails, all other physical servers immediately go offline.
D. If the physical server fails, all the virtual computers immediately go offline.
D. The biggest risk of running a virtual computer is that it will go offline immediately if the server that it is housed on fails. All other virtual computers on that particular server will also go offline immediately.
Which of the following file extensions is used by VMware?
A. .vmdk
B. .vdi
C. .vhdx
D. VT-x
A. VMware uses the .vmdk file extension for the virtual hard drive file. VirtualBox uses .vdi by default (though it can use others). Hyper-V uses .vhdx. VT-x is the Intel virtualization extension that is incorporated into Intel-based systems and must be enabled in the UEFI/BIOS for virtualization software to work.
Which of the following network connection types should be used to allow for connectivity to the external network but keep the VMs on a separate IP network?
A. Bridged
B. NAT
C. Private
D. No networking
B. Network address translation (NAT)-based network connections are the most common default. This allows the VMs to have their own IP network but still connect to the external network and make use of the Internet. This is the same principle behind NAT used in a SOHO network. Bridged means that the VMs have access to the external network, but they must use IP addresses from that external network. Private means that multiple VMs within a host can communicate with each other, but not beyond the host. The no networking option disables any type of networking connectivity for the VM in question.
A customer running Windows 10 Pro wishes to install a Linux VM in Hyper-V Manager. Which of the following requirements must be met in order for this to happen? (Select all that apply.)
A. Update and secure the host system.
B. Virtualization must be enabled in the UEFI/BIOS.
C. Hyper-V needs to be turned on in Windows Features.
D. Restart the system.
B, C, and D. Virtualization must be enabled in the UEFI/BIOS. Then, Hyper-V needs to be turned on in Windows Features. Finally, the system needs to be restarted. Updating and securing the host system is recommended, but is not a requirement.
