Certified OpenStack Administrator Study Guide by Andrey Markelov

By Andrey Markelov

This advisor teaches you ways and what to review with the intention to be most sensible ready for the qualified OpenStack Administrator examination. This fast-growing expertise 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. every one subject is taught utilizing functional workouts and directions for the command line and for the graphical buyer (Horizon). every one bankruptcy is through evaluate questions, whole with solutions. Even upon getting taken and handed your OpenStack examination, this ebook will stay an invaluable reference.

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It can operate in distributed configurations with a central controller. ko: The module plays the role of ASIC (application-specific integrated circuit) in hardware switches. This module is an engine of traffic processing. • Daemon ovs-vswitchd: The daemon is in charge of management and logic for data transmitting. • Daemon ovsdb-server: The daemon is used for the internal database. It also provides RPC (remote procedure call) interfaces to one or more Open vSwitch databases (OVSDBs). Most likely you will not need to manage Open vSwitch at the exam time, but commands can be useful.

3. 4. 5. Where are the images stored when using the local file system by default? A. /var/cache/glance/ B. /var/lib/glance/store/ C. /var/log/glance/ D. /var/lib/glance/images/ Which two main daemons does Glance consist of (choose two)? A. glance-endpoint B. glance-registry C. glance-backend D. glance-api What parameter in Glance’s configuration files defines the back end for storing files? A. default_store B. B. default_backend C. prefered_store D. prefered_backend How can an image in OpenStack cloud be stored with CLI?

OVSHybridIptablesFirewallDriver See the Tip in Chapter 4 for an explanation of how RegEx can be used in the grep command. Manage Network Resources Now let’s go through the process of creating all the necessary network resources for connecting an instance to the external world. For that you can use the neutron command and sometimes nova. Both commands have built-in help. Use nova help or neutron help sub-command for getting help for a particular sub-command. First, let’s create a flat external network.

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