EMC E20-020 Online Practice Questions and Exam Preparation

EMC E20-020 Online Questions & Answers

• Question 41:

  Ian organization wants to protect the cloud management platform (CMP) from loss due to a site disaster. To support this requirement, the completed cloud design deliverables include the processes and procedures for restoring CMP functionality.

  What other item should be included in the deliverables to support this requirement?

  A. Recovery validation and verification processes
  B. Data abstraction keys
  C. List of all consumer service IP addresses
  D. Document containing the data encryption keys
  A. Recovery validation and verification processes

• Question 42:

  You are creating a cloud infrastructure design for an organization. The cloud design includes physical servers with hypervisors which will be used to host consumer services. The hosts are managed through a hypervisor element manager. Which step should be taken to secure the hypervisor environment?

  A. Place the element manager administrative interfaces on a consumer-facing network and hypervisoradministrative interfaces on an isolated network
  B. Place the element manager administrative interfaces on a consumer-facing network and hypervisoradministrative interfaces on a secure network
  C. Place the element manager and hypervisor administrative interfaces on a secure network
  D. Place the element manager and hypervisor administrative interfaces on a consumer- facing network
  C. Place the element manager and hypervisor administrative interfaces on a secure network

• Question 43:

  A cloud architect has determined that the cloud management infrastructure requires an authentication and PKI environment. In addition, each tenant will require its own authentication and PKI environment. What describes these separate environments in a cloud design document?

  A. Availability zones
  B. Fault domains
  C. Multi-tenancy
  D. Trust zones
  C. Multi-tenancy

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  The term "software multitenancy" refers to a software architecture in which a single instance of software runs on a server and serves multiple tenants. A tenant is a group of users who share a common access with specific privileges to the

  software instance.

  Incorrect:

  Not A: Availability zones (AZs) are isolated locations within data center regions from which public cloud services originate and operate.

  Not B: A fault domain is a set of hardware components ?computers, switches, and more ?that share a single point of failure.

  Not D: Zones of trust are a defined area of the system where by by necessity, by the presence of key information assets and by the wider environmental context the connections within the zone are treated as at the same level of trust. This

  effectively couples the components within that subsystem for security purposes. References: https://en.wikipedia.org/wiki/Multitenancy

• Question 44:

  A company wants to build an IaaS cloud to host cloud-native applications. On which areas should a cloud architect focus when gathering requirements for this cloud design?

  A. Automation, multi-tenancy, and hardware availability
  B. Automation, hardware availability, and policy compliance
  C. Hardware availability, policy compliance, and multi-tenancy
  D. Policy compliance, automation, and multi-tenancy
  C. Hardware availability, policy compliance, and multi-tenancy

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  *Multi-tenancy

  Infrastructure as a Service is very similar to what we've known as hosting or collocation services, just painted with bright cloudy colors. Multi-tenant services are any services that you offer to multiple customers, or "tenants." In most cases,

  IaaS and multi-tenant services mean the same thing, although you could also implement storage- or database-related multi-tenant service.

  *Hardware

  In the case of IaaS the computing resource provided is specifically that of virtualised hardware, in other words, computing infrastructure. Note: Infrastructure as a Service (IaaS) is a form of cloud computing that provides virtualized computing

  resources over the Internet.

  References:

  http://www.interoute.com/what-iaas http://searchtelecom.techtarget.com/answer/How-do- Infrastructure-as-a-Service-and-multi-tenant-servicesdiffer

• Question 45:

  A cloud architect is expected to present a final cloud infrastructure design to an organization. The architect will meet with an organization's executives and discuss the physical design. Why might this to be the wrong time to present this design?

  A. Physical designs are too high level for executives
  B. Physical designs are too general for executives
  C. Physical designs are too detailed for executives
  D. Physical designs are too theoretical for executives
  C. Physical designs are too detailed for executives

• Question 46:

  An architect is designing a cloud. The architect has decided to place the cloud management platform components on a separate set of compute, network, and storage infrastructure from the consumer resources. Why would the architect make this decision?

  A. Provide static and dedicated resources to the management applications without affecting the efficiency ofconsumer resource sharing
  B. Provide static and dedicated resources to the consumer applications without affecting the efficiency of themanagement applications
  C. Provide additional security to the management infrastructure by eliminating exposure to public-facingnetworks
  D. Provide separate billing for the management applications for the consumer's resources
  C. Provide additional security to the management infrastructure by eliminating exposure to public-facingnetworks

• Question 47:

  An organization is implementing a backup solution for their private cloud. They are concerned that having the backup data stored onsite will expose them to lose in the event of a site-wide disaster. They are considering replicating the backup storage to an external site.

  What are the design considerations involved with this replication solution?

  A. Ensuring proper hypervisor support and the availability of a federated single sign-on solution
  B. Ensuring network traffic encryption is considered and ensuring proper hypervisor support
  C. Ensuring sufficient network bandwidth is available and network traffic encryption is considered
  D. Ensuring proper hypervisor support and sufficient network bandwidth is available
  B. Ensuring network traffic encryption is considered and ensuring proper hypervisor support

• Question 48:

  An organization wants to provide its developers with the ability to deploy virtual machines. These virtual machines have software and libraries installed that are used to develop applications. Each virtual machine will be configured with the same IP address and will be able to download application code from a central server. Which will be included in the design to support these requirements?

  A. VSANs and virtual firewall appliances
  B. VLANs and virtual firewall appliances
  C. VLANs and virtual IDS appliances
  D. VXLANs and an OS firewall
  D. VXLANs and an OS firewall

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  Virtual Extensible LAN (VXLAN) is a proposed encapsulation protocol for running an overlay network on existing Layer 3 infrastructure. An overlay network is a virtual network that is built on top of existing network Layer 2 and Layer 3 technologies to support elastic compute architectures. VXLAN will make it easier for network engineers to scale out a cloud computing environment while logically isolating cloud apps and tenants. References: http://whatis.techtarget.com/ definition/VXLAN

• Question 49:

  An organization is considering the use of a cloud gateway to backup services to a public cloud. They will use their existing backup application. What is a design consideration?

  A. Ensuring the cloud storage provider is using the same compression algorithm as the backup software
  B. Ensuring data is encrypted and key management is defined
  C. Ensuring the cloud storage provider is using the same PKI solution as the organization
  D. Ensuring the backup application supports the same authentication mechanism as the public cloud provider
  B. Ensuring data is encrypted and key management is defined

• Question 50:

  An organization has internal applications that require block, file, and object storage. They anticipate the need for multi-PB storage within the next 18 months. In addition, they would prefer to use commodity hardware as well as open source technologies. Which solution should be recommended?

  A. Cinder
  B. Hadoop
  C. Swift
  D. Ceph
  C. Swift

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  OpenStack Swift Object Storage on EMC Isilon

  EMC Isilon with OneFS 7.2 now supports OpenStack Swift API. Isilon is simple to manage, highly scalable (up to 30PB+ in a single namespace) and highly efficient (80%+ storage utilization) NAS platform.

  References: http://samuraiincloud.com/2014/11/26/openstack-swift-object-storage-on-emc- isilon/