Cloud Networking - Quiz 2

Jana is trying to optimize the cloud infrastructure of her organization for availability. She wants to ensure that the virtual machines that normally use a certain amount of memory can use more physical memory up to a predefined level in cases of heavy workloads. Which of the following features should she look at configuring?

Bursting

Omari is configuring the CPUs for his company's VMs that handle sales. There are a total of 32 VMs that need support, and Omari is using quad-core processor CPUs. To reduce lagging for the customers, the company has decided to disable SMT on the CPUs. How many CPUs does Omari need to configure to accomplish this?

8

Fictional Corp has decided to migrate much of its on-premises data center to a cloud service provider to take advantage of some of the benefits of cloud computing. The most important benefit they found was the ability to expand and grow (or shrink) as needed without any delay due to shipping and installing the hardware required for an on-premises data center. Which common cloud terms were the most important factor in their decision?

Elasticity

Fictional Corp is building a private cloud in their data center. They want to ensure extra resources are available if a server fails. Which of the following technologies might they build their cloud upon?

Cluster

Juan is implementing automation processes into some of the cloud infrastructures that his organization uses. Which of the following terms best describes the design, development, and optimization of these automation tools?

Orchestration

Frank is configuring a virtual machine that will reside on a CSP's infrastructure that will eventually need multiple terabytes of storage for data. However, he decides to only configure it with one terabyte in the beginning and then provision more disk space as necessary. Which of the following is the most likely reason for his decision?

Cost

Fictional Corp has built a private cloud in its data center. That data center is in a region of the country that is prone to earthquakes. They want to ensure the company can continue operating if a major earthquake hits and knocks out the power and Internet services. Which of the following strategies should they implement?

Disaster recovery

Robert is troubleshooting the containers his company uses to run some of its applications. He decides to set a constant flow of traffic to the service to avoid service slowdowns. What is this an example of?

rate limiting

Brian has built a private cloud in his company's data center. He has just racked up a server and turned it on for the first time. Which of the following extensions might he see that he should ensure are enabled in the UEFI/BIOS setup before continuing to install the operating system and configure the server to be part of the private cloud? (Choose two.)

• A. Intel-V

• B. VT-x

• C. AMD-V

• D. AV-x

B & C

There have been multiple performance issues with the virtual machines that reside on one of the hosts in the data center at Fictional Corp. After a bit of research, it is discovered that during peak hours, they are all concurrently trying to use all the vCPUs that have been configured for them. Which of the following was set too high in this configuration?

Overcommitment ratio

Wayne has received reports from users that several web applications are running very slowly at times. He is analyzing the virtual machine they reside on and sees that it is maxing out its resources on a regular basis. Which of the following cloud features should he configure so that more resources would be available on demand?

Elasticity

Greg is deploying a new application that will originally have 1 terabyte of disk space allocated to storing user files. However, since it is a new application, he is unsure how quickly the disk space may fill up and need to grow to accommodate new files. Which of the following cloud features should he ensure is configured correctly so as not to cause any errors to be displayed to users about the storage space being full?

Auto-scaling

Fictional Corp has just finished migrating several servers from an on-premises data center to a cloud service provider (CSP). However, users are now complaining that they are running much slower than before. Which of the following would NOT be a contributing factor as to why they seem slower?

Amount of disk space provisioned for virtual machines at the CSP

Maria would like to recommend a serverless computing solution to her customer. What is one advantage of serverless?

It is more convenient since the customer doesn't have manage the server.

Carolyn is considering using containers for her network instead of VMs. Choose two of the major advantages of using containers instead of VMs?

• A. They use only the parts of the OS needed for the application.

• B. They are significantly less expensive than VMs.

• C. They allow more users to work simultaneously.

• D. They allow the use of more applications than VMs.

A & D

Ned is working on implementing an open-source container management service because it has some orchestration features that his organization would really benefit from. Which of the following is a possible solution he may be working with?

Kubernetes

Dione is managing the containers her company uses to support various applications. She has written the code for an application and defined its variables and dependencies. Where will she store this information?

In a docker image file

Roz configures new virtual machines in the company's private cloud. She knows that the virtual machines need a total of 512 GiB of memory. However, the physical machine she's deploying them to only has 256 GiB installed. When configured correctly, which of the following technologies could allow her to deploy the virtual machines to this hardware?

Overcommitment ratio

Sarika is considering using serverless computing to operate some of the applications needed in her company's network. She needs to describe this concept quickly to her team as they try to make the decision. Which of the following best describes serverless computing?

FaaS

Khalil is designing the configuration for his VMs and has determined it must handle 24 threads simultaneously. How many CPUs are needed if each has a quad-core processor with SMT enabled?

3

Anna is trying to determine how to organize the virtual machines at the university where she works. There are 30 VMs that are all located at the main campus that must run high-speed applications. Which placement group should she choose for these VMs?

cluster

A company is employing a virtual desktop infrastructure (VDI) for its employees who work at the office some days and at client sites on other days. The user requests a setup where they can save files on their virtual desktop to revisit later. What kind of setup will be appropriate?

Persistent instance

Chris has discovered a technique for assisting with memory allocation that he can configure on some of his virtualized systems. Using this method, a driver is installed on each of a host's virtual machines. This driver enables the host to control a bogus process on the virtual machine, causing the VM to allocate memory to that process. Rather than using the memory that has been allocated to the process, the host can assign it to another virtual machine so that it can use it instead. Which of the following best describes the memory reclamation process that Chris is thinking about using?

Ballooning

Henry has just been hired as a security engineer and has been tasked with analyzing the cloud infrastructure that the company uses. Which of the following might Henry be concerned about if he discovers that critical data is being stored in that environment?

Shared compute

Darren has been using Kubernetes for container management with the deployments his company has been using on the Google Cloud Platform. However, he is now being told that the company is going to be migrating to a different container management platform with Azure and AWS. Which of the following tools might he need to learn to make this transition and start deploying applications on the new platform?

Docker Swarm

Your organization's legal department has requested that you audit the licenses you are using for the operating system your organization uses. As you start analyzing the on-premises cloud systems, you need to ensure that you have the correct number of licenses. Which of the following should you ensure to count on the machine?

The number of CPU cores

Brice is working on a plan to move some or all of his company's network to VMs. He is concerned about the cost effectiveness, however, and wants to make sure the VM instances are only used where feasible. Which factor should have the least impact on the total cost of moving to VMs?

The volume of ingress traffic

Tiffany is considering the use of an instance template for use with her company's VMs. What is the major advantage of using an instance template?

• A. They allow variation in the instances to be done more easily.

• B. They provide more security to the network.

• C. They ensure every instance is configured in the same way.

• D. They allow data to be transferred more rapidly.

C & D

Fictional Corp has multiple monitoring systems in place to report various events that occur as soon as they happen. However, they have also tried to design the infrastructure so that it can withstand and compensate for these failures and outages and allow the system to still function so that the users do not notice the failure. Which of the following terms could be used to describe the theory they used when designing their infrastructure?

Resiliency

Margaret has designed an application and the underlying systems that it resides on to have a five-nine uptime or 99.999%. Which of the following techniques has she implemented?

High availability

Selma is determining what type of network connection to use for her corporation's web server VMs. Which connection mode should she use to connect these servers to the rest of the network?

bridged mode

Fictional Corp wants to start migrating a bunch of internal applications to a CSP. However, they are in a rural area, and their only connection option is a T1. However, they know that the move would save them money in electrical expenses and reduce the maintenance burden of monitoring and controlling the various firewalls and other related equipment. Which of the following will likely be the biggest hurdle for them?

Bandwidth limitations

Vikal decides to use a hypervisor that is installed directly into the firmware of his servers at his publishing company. What kind of hypervisor has he installed?

Type 1 hypervisor

Kim is trying to keep the containers used to support the applications being used by her 80 employees from being overloaded with traffic. She decides to configure the containers to only accept a maximum of 60 requests for work at any one time. What term describes the strategy she is using?

concurrency control

Frederick is trying to deploy several virtual machines to a new private cloud that his company has just built in their data center. He knows that he needs to configure the virtual machines to have multiple vCPUs, but he also knows that the number of vCPUs needed outnumbers the actual number of total logical cores available on the physical servers. Which of the following might describe one of the concepts he could implement in this scenario?

Overcommitment ratio