EMC E20-020 Online Practice Questions and Exam Preparation

EMC E20-020 Online Questions & Answers

• Question 61:

  A cloud design contains multiple hosts that are running a hypervisor. Each host has only two physical 10 Gb network adapters. The hosts reside in different subnets but can communicate with each other. Each host will support numerous virtual machines and network segments.

  What is needed to support a network segmentation in the current configuration?

  A. IDS
  B. NVGRE
  C. MLAG
  D. VLAN
  B. NVGRE

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  NVGRE (Network Virtualization using Generic Routing Encapsulation) is a network virtualization technology that attempts to alleviate the scalability problems associated with large cloud computing deployments. It uses Generic Routing

  Encapsulation (GRE) to tunnel layer 2 packets over layer 3 networks.

  Incorrect:

  Not C: MLAG is the ability of two and sometimes more switches to act like a single switch when forming link bundles. This allows a host to uplink to two switches for physical diversity, while still only having a single bundle interface to manage.

  References:

  https://en.wikipedia.org/wiki/Network_Virtualization_using_Generic_Routing_Encapsulation

• Question 62:

  You are designing consumer compute resources in an onsite private cloud. During an assessment, you discover that the organization's IT staff wants secure access to the underlying host OS. What should be included in the design to support this requirement?

  A. Host IDS configurationSecure key infrastructure Bridged management network
  B. Perimeter firewall configuration VPN encryption Separate management network
  C. Host OS firewall configuration Central logging Physically isolated management network
  D. Host OS firewall configuration Secure key infrastructure Separate management network
  B. Perimeter firewall configuration VPN encryption Separate management network

• Question 63:

  What is an advantage of using a brownfield infrastructure?

  A. Avoids upgrades to existing infrastructures
  B. Promotes staff familiarity with technology
  C. Enables migration to new technologies
  D. Avoids older and less efficient processes
  B. Promotes staff familiarity with technology

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  Brownfield fund investments involve established assets in need of improvement. Investing at the operational stage of a project is brownfield investment. This may be preferred as completion and usage risks should be reduced because the project will have been operating for some time. References: http://www.engagedinvestor.co.uk/why-invest-in-infrastructure/1472667.article

• Question 64:

  In which cloud services are policy compliance typically defined in a hybrid cloud deployment?

  A. Portal, catalog, and orchestration
  B. Virtual networking, portal, and catalog
  C. Orchestration, virtual networking, and portal
  D. Catalog, orchestration, and virtual networking
  D. Catalog, orchestration, and virtual networking