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asked 2016-01-18 10:32:16 -0600

Dave gravatar image

Hi Experts,

Could you help me with the answers to the below questions :

1.What is the operational basis of Openstack

          A. An open source platform that can be used to produced maintain IaaS
          B. Free open source software based on Apache
          C. An open solution platform facilitated and maintained by NASA and Rackspace
  1. What is the characteristic about using a Hybrid Cloud ?

         A. All existing types of clouds are used to boost computing performance
          B. Hybrid clouds operate on different platforms where different clouds can be used on and off premises
          C. when resources are not sufficient on a private cloud, public clouds can be used to compensate overload of resources
          D. data is shared across different clouds on and off premises
    
  2. When must be instance flavour be created

          A. After an instance is created
          B. During the instance creation  of  process
          C. Before instance is created
    
  3. Is it advisable to create images with an associated password A. No, because the images are often shared by the end users B. Yes it is always necessary C. Only for virtual instances D. Only for baremetal instances
  4. What is the limitation of NOVA networking

          A. A multitear network cannot be created
          B. No api
          C. IP addressing cannot be controlled
          D. IP management of VM instances is not possible
    

    5.What does Glance Provide ?

          A. Networking between the h/w components of an Openstack
          B. Discovery Registration and delivery services
          C. Authentation and Authorization for all of the Openstack services
          D. Object Storage that is API accessible and URL
    

6.What is the first step in building an image ?

          A. Start VM using a disk image file and connect it via VNC console
          B. Extract root partation kernal and ram
          C. Configure image with cloud init
          D. Retrive a that you are trying to make an image of

7.What is a security group ?

          A. A named collection of network access rules used to limit the traffic tides
          B. Having access to instances
          C. Used for creating firewalls
          D. A basic storage entity and any optional metadata that represents a file and

8.What component of Cinder architecture is responsible for managing backend storage devices?

          A. Cinder-Scheduler
          B. Cinder-Volume

9. In swift large files of any type can be stored, if very large in what size chunks they can be split up

          A. 2gb
          B. 6gb
          C. 10gb
  1. What is the reason that a central user authentication system such as keystone was developed for openstack ?

          A. Gives a user a login
          B. More secured and ….
          C. It allows user to participate
          D. single user entry
    
  2. The user, the service endpoint and keystone play a role of authentication and authorization of service requests. What is the final check before allowing a user a specific service request.

          A. The service endpoint verifies from its policy whether the service request is allowed
          B. Keystone notifies the service endpoint that the token is authenticated. 
          C. Keystone notifies the service endpoint that the token is authorized ...
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answered 2016-01-18 21:12:58 -0600

Gnan gravatar image

updated 2016-01-18 21:17:39 -0600

Hey Dave,

Please find answers inline. I have answered as many as I can. Please validate the answers with others as well.

1.What is the operational basis of Openstack. A. An open source platform that can be used to produced maintain IaaS B. Free open source software based on Apache. Initially it was developed by NASA and Rackspace. As of 2016 it is managed by OpenStack Foundation, a non-profit corporate entity established in September 2012 to promote OpenStack software and its community.

  1. What is the characteristic about using a Hybrid Cloud ? D. data is shared across different clouds on and off premises

  2. When must be instance flavour be created C. Before instance is created

  3. Is it advisable to create images with an associated password A. No, because the images are often shared by the end users

  4. What is the limitation of NOVA networking

6.What does Glance Provide ? B. Discovery Registration and delivery services

7.What is the first step in building an image ? D. Retrive a that you are trying to make an image of

8.What is a security group ? B. Having access to instances

9.What component of Cinder architecture is responsible for managing backend storage devices? B. Cinder-Volume

  1. In swift large files of any type can be stored, if very large in what size chunks they can be split up Answer is 5GB. But the option is not listed.

  2. What is the reason that a central user authentication system such as keystone was developed for openstack ? B. More secured and …. provides Identity, Token, Catalog and Policy services for use specifically by projects in the OpenStack family.

  3. The user, the service endpoint and keystone play a role of authentication and authorization of service requests. What is the final check before allowing a user a specific service request. B. Keystone notifies the service endpoint that the token is authenticated.

  4. Why does keystone provide a service catalogue ? A. To allow service endpoints to communicate with each other

  5. Which networking component does neutron provide that nova networking doesn't ? B. GRE (Tunnelling)

  6. Which of the following is a use case for Neutron to replace Nova Networking ? C. Provide a dhcp service unique per tenent networks

  7. Which of the following is true about floating IP address ? B. Floating IP address are translated to fixed IP address to allow an instance initiate external communication

  8. What is the default perpose of Neutron DHCP agent that provides DHCP services to guests? C. Ip

  9. At any time it is possible to add and remove users in a security group, when are newly created rules applied ? Correct option is not listed. A change to security group can be applied to running instance as well.

  10. Which of the following heat orchestration service components orchestrates the launching of templets and provides events back to api consumer ? A. Heat Engine

Some issue with formatting. The question numbers are not displayed correctly.

Regards Gnan

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Asked: 2016-01-18 10:32:16 -0600

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Last updated: Jan 18 '16