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web.groovymark@gmail.com
- November 17, 2024
Question 41
Which OpenStack service allows users to create, manage, and delete virtual machine instances on demand?
a) Nova
b) Swift
c) Glance
d) Trove
Correct Answer: a) Nova
Explanation: Nova is the OpenStack compute service that enables users to create, manage, and delete virtual machine instances as required, providing flexible cloud computing capabilities.
Question 42
Which SDN plane manages the overall network intelligence and decides how traffic should flow through the network?
a) Control plane
b) Data plane
c) Application plane
d) Southbound interface
Correct Answer: a) Control plane
Explanation: The control plane in SDN manages the overall network intelligence and makes decisions on how traffic should flow through the network.
Question 43
Which SDN controller was among the first to be publicly available and helped pioneer SDN technologies?
a) NOX
b) Beacon
c) Floodlight
d) OpenDaylight (ODL)
Correct Answer: a) NOX
Explanation: NOX was one of the first OpenFlow controllers made publicly available, playing a key role in the development and adoption of SDN technologies.
Question 44
Which OpenStack module provides block storage for virtual machines, enabling persistent storage of data even after VM shutdown?
a) Cinder
b) Swift
c) Glance
d) Trove
Correct Answer: a) Cinder
Explanation: Cinder provides persistent block storage in OpenStack, allowing virtual machines to store data even after they are powered off or rebooted.
Question 45
Which SDN API manages communication between the control plane and the application plane?
a) Northbound API
b) Southbound API
c) East/Westbound API
d) Data plane
Correct Answer: a) Northbound API
Explanation: The northbound API manages communication between the control plane and the application plane, allowing applications to influence network behavior.
Question 46
Which OpenStack module provides big data services, enabling the provisioning and management of Hadoop clusters?
a) Sahara
b) Trove
c) Glance
d) Neutron
Correct Answer: a) Sahara
Explanation: Sahara is the OpenStack module responsible for provisioning Hadoop clusters and other big data processing frameworks, providing scalable data processing capabilities.
Question 47
Which SDN mechanism ensures that network devices are dynamically associated with the correct controllers, improving fault tolerance and load balancing?
a) Dynamic device association
b) Controller-Switch trust
c) Controller diversity
d) Fine-grained data flow management
Correct Answer: a) Dynamic device association
Explanation: Dynamic device association ensures that network devices are associated with the correct controllers, improving fault tolerance and balancing network traffic loads.
Question 48
Which OpenStack module provides multi-tenant cloud messaging services for distributed components?
a) Zaqar
b) Glance
c) Trove
d) Swift
Correct Answer: a) Zaqar
Explanation: Zaqar provides multi-tenant cloud messaging services, enabling communication between distributed components and services within a cloud environment.
Question 49
Which SDN security mechanism improves network defense by distributing network traffic across multiple controllers?
a) Controller diversity
b) Redundancy
c) Dynamic device association
d) Replication
Correct Answer: a) Controller diversity
Explanation: Controller diversity improves network defense by distributing network traffic across multiple controllers, preventing service disruption and enhancing security.
Question 50
Which OpenStack module provides graphical user interface (GUI) management of OpenStack services, including networks and security groups?
a) Horizon
b) Glance
c) Nova
d) Trove
Correct Answer: a) Horizon
Explanation: Horizon provides a graphical user interface (GUI) for managing OpenStack services, including network and security group configuration, making it easier for users to interact with OpenStack components.
