Certified OpenStack Administrator Study Guide by Andrey Markelov

By Andrey Markelov

This consultant teaches you the way and what to review so as to be most sensible ready for the qualified OpenStack Administrator examination. This fast-growing know-how is making a marketplace that wishes extra certified IT experts with confirmed abilities. This ebook covers a hundred% of the examination standards for either The OpenStack beginning and the Mirantis OpenStack Certification examination. each one subject matter is taught utilizing useful workouts and directions for the command line and for the graphical consumer (Horizon). each one bankruptcy is by way of overview questions, whole with solutions. Even upon getting taken and handed your OpenStack examination, this ebook will stay an invaluable reference.

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Figure 5-2. org defines several types of OpenStack nodes. Neutron is usually spread across three of them. API service usually exists at the control node. Open vSwitch and client-side Neutron agents are usually started at the Hypervisor or Compute node. And all server-side components of the OpenStack Networking service work on Networks nodes, which can be gateways to an external network. Neutron consists of several services that are implemented as standard GNU/Linux daemons: • neutron-server: The main service of Neutron.

A. keystone-main B. keystone-admin C. memcached D. httpd How would you define a new role in OpenStack cloud (choose all applicable)? A. Enter command openstack role create newrole. B. Restart httpd service. C. Create new "keystonerc" file. D. json files. 29 CHAPTER 3 ■ IDENTITY MANAGEMENT 4. 5. How would you separate two or more cloud instances but manage them with one Keystone instance? A. Use Domains feature. B. Use Regions feature. C. Use availability zones. D. Each cloud instance should use own Keystone instance feature.

Each cloud instance should use own Keystone instance feature. Which HTTP error code would you get if the Keystone token has expired? A. ERROR 404. B. ERROR 403. C. ERROR 401. D. All of them. Answers to Review Questions 30 1. A 2. C, D 3. A, D 4. A 5. C CHAPTER 4 Image Management This chapter covers 10% of the Certified OpenStack Administrator exam requirements. Architecture and Main Components of Glance Chapter 3 touched on the Keystone service that acts as a catalog of other OpenStack services.

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