Virtualization and Cloud Computing (11%)

220-1201 · 33 questions

• Staff reach a payroll application in a browser. The vendor patches the application and its operating system. The company does not deploy its own code. Which cloud model is this?
• A server room runs several guest machines on a hypervisor that is installed directly on the hardware. No desktop operating system sits underneath. Which hypervisor is this?
• A trainer runs a second operating system in a window on a Windows laptop so students can practice on it. Which hypervisor type is that?
• A designer on a Mac must run an application that only installs on Windows. The Mac itself must stay the daily system. Which approach fits?
• A tax office keeps its file server in its own closet and starts extra virtual machines at a public provider each spring. Which cloud model is that mix?
• Several county clinics share one cloud that was built for those clinics and is not offered to the public. Which cloud model is that?
• A ticket site wants the number of virtual machines to grow when CPU stays high and to shrink when sales are quiet. Which cloud trait is that?
• Accountants use thin clients. Their desktops actually run on servers in the data center, and the clients only display them. Which design is that?
• A factory must try a risky browser plug-in where it cannot reach the office network. Which virtual-machine use fits?
• Developers deploy their own application code. The provider runs the runtime and the operating system under it, and the developers do not patch that operating system. Which cloud model is that?
• A company rents virtual machines from a provider, patches the guest operating systems itself, and does not own the hardware. Which cloud model is that?
• A video shop's cloud bill rises in months when a lot of data leaves the provider and falls when little data leaves. Which cloud trait is that bill?
• A scheduler wants to try a risky change to an application without the staff seeing it. A separate virtual copy of that application is available. Which use of the copy fits?
• A company runs its cloud platform on servers in its own building, and no other company is a customer of that cloud. Which model is that?
• A build server runs many small application instances that share the host kernel and start faster than full guest machines. Which technology is that?
• An application runs only on an older operating system. The shop keeps that older system as a guest on a current host. Which approach is that?
• A customer wants its virtual machines on a physical host that no other customer uses. Which arrangement is that?
• A designer's documents folder on a laptop and the same folder on a desktop stay matched because a cloud client updates both. Which cloud feature is that?
• A design keeps a second site ready so the service continues if the first site fails. Which cloud trait is that?
• Several customers run on the same cloud hosts, and no customer can see another's data. Which cloud trait is that sharing?
• A new virtual machine cannot be created because the host has almost no datastore space left. Which requirement is blocking it?
• A customer chooses to run on a host that other customers also use, in order to pay less. Which arrangement is that?
• A virtual machine cannot reach any network. Its settings show no virtual network adapter connected, and other guests on the host are fine. Which change fits?
• A virtual machine is slow, and the memory assigned to it is far below what its application needs. The host still has free memory. Which change fits?
• A company rents computing capacity from a provider that offers the same service to any customer. The company does not own the hosts. Which cloud model is that?
• A test virtual machine must not reach the production servers. The host already has a virtual switch with no path to those servers. How should the guest be connected?
• A host's datastore is filling up, and the growth is the snapshots kept for one virtual machine. Which requirement do those snapshots create?
• A lab guest must start each class from a clean state. Changes the previous class made inside the guest must not remain. Which action does that?
• A class needs an identical virtual machine for each student. A template guest already exists. Which action provides the copies?
• A virtual machine's disk was created to grow as the guest wrote data. The guest paused when the host datastore had no free space left. What filled the datastore?
• Several virtual machines are slow at the same time. The host CPU stays busy, and the host still has free memory and free disk. Which limit fits?
• A cloud bill rises in months when customers upload large files, and it does not rise the same way when they only download. Which metering matches the uploads?
• A student reverted a virtual machine to a snapshot taken in the morning, and the work done inside the guest that afternoon disappeared. What did the revert do?