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web.groovymark@gmail.com
- November 17, 2024
Question 21
Which SDN plane is responsible for processing and forwarding data packets according to flow table instructions?
a) Control plane
b) Data plane
c) Application plane
d) Southbound interface
Correct Answer: b) Data plane
Explanation: The data plane processes and forwards data packets based on flow table instructions provided by the control plane in SDN.
Question 22
Which OpenStack service provides key management for encryption and security, storing sensitive data like certificates and keys?
a) Barbican
b) Trove
c) Swift
d) Cinder
Correct Answer: a) Barbican
Explanation: Barbican is the OpenStack module responsible for securely storing sensitive data, such as encryption keys and digital certificates, to ensure data security.
Question 23
Which SDN controller was among the first publicly available OpenFlow controllers and helped pioneer SDN development?
a) NOX
b) Beacon
c) OpenDaylight (ODL)
d) Floodlight
Correct Answer: a) NOX
Explanation: NOX was one of the first OpenFlow controllers made available to the public, playing a key role in the early development of SDN technologies.
Question 24
Which OpenStack service enables 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 25
Which SDN security mechanism ensures continued service availability by replicating important network components?
a) Redundancy
b) Controller diversity
c) Dynamic device association
d) Fine-grained data flow management
Correct Answer: a) Redundancy
Explanation: Redundancy replicates important network components, such as controllers, to ensure continued service availability in case of hardware or software failures.
Question 26
Which SDN plane interacts directly with physical network devices to implement forwarding rules and handle data packets?
a) Control plane
b) Data plane
c) Application plane
d) Management plane
Correct Answer: b) Data plane
Explanation: The data plane interacts directly with network devices like switches and routers to implement forwarding rules and handle the actual data traffic.
Question 27
Which OpenStack module provides networking capabilities, enabling communication between compute instances and storage nodes?
a) Neutron
b) Glance
c) Cinder
d) Trove
Correct Answer: a) Neutron
Explanation: Neutron provides networking services in OpenStack, enabling communication between compute instances and storage nodes within the cloud infrastructure.
Question 28
Which SDN controller is known for its modular and multi-protocol support, making it widely deployed in enterprise environments?
a) OpenDaylight (ODL)
b) NOX
c) Beacon
d) Floodlight
Correct Answer: a) OpenDaylight (ODL)
Explanation: OpenDaylight (ODL) is widely deployed in enterprise environments due to its modular architecture and multi-protocol support, making it highly adaptable for various network needs.
Question 29
Which SDN API allows external applications to program the controller and request network services?
a) Northbound API
b) Southbound API
c) East/Westbound API
d) Data plane
Correct Answer: a) Northbound API
Explanation: The northbound API in SDN allows external applications to program the controller and request network services, enabling software-defined control over network behavior.
Question 30
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.
Question 31
Which SDN mechanism distributes network traffic across multiple controllers to prevent service disruption and improve security?
a) Controller diversity
b) Redundancy
c) Dynamic device association
d) Replication
Correct Answer: a) Controller diversity
Explanation: Controller diversity distributes network traffic across multiple controllers, preventing service disruption and reducing the risk of network failure or attack.
Question 32
Which OpenStack module provides persistent block storage for virtual machines, enabling data to be stored and accessed 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 data to be stored and accessed even after virtual machines are powered off or restarted.
Question 33
Which SDN API is responsible for managing communication between the control plane and the data plane?
a) Southbound API
b) Northbound API
c) East/Westbound API
d) Application plane
Correct Answer: a) Southbound API
Explanation: The southbound API is responsible for managing communication between the SDN control plane and the data plane, enabling the control plane to issue instructions for forwarding traffic.
Question 34
Which OpenStack module enables users to orchestrate cloud applications and resources using templates?
a) Heat
b) Trove
c) Horizon
d) Swift
Correct Answer: a) Heat
Explanation: Heat is the OpenStack orchestration module, allowing users to automate the deployment of cloud applications and resources by using predefined templates.
Question 35
Which SDN mechanism ensures that devices are dynamically associated with the correct controllers, improving fault tolerance and load balancing?
a) Dynamic device association
b) Redundancy
c) Controller-Switch trust
d) Fine-grained policy 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 36
Which OpenStack module provides block storage for virtual machines, allowing them to persistently store data even after shutdown?
a) Cinder
b) Swift
c) Neutron
d) Glance
Correct Answer: a) Cinder
Explanation: Cinder provides block storage in OpenStack, allowing virtual machines to store data persistently, even after the VM is powered off or rebooted.
Question 37
Which SDN mechanism helps ensure that network devices and controllers maintain secure, trusted communication?
a) Controller-Switch trust
b) Replication
c) Controller diversity
d) Dynamic device association
Correct Answer: a) Controller-Switch trust
Explanation: Controller-Switch trust ensures that SDN controllers and network devices maintain secure communication, preventing malicious entities from disrupting the network by inserting unauthorized flows.
Question 38
Which OpenStack module is responsible for managing large-scale object storage, enabling users to store and retrieve massive amounts of unstructured data?
a) Swift
b) Cinder
c) Glance
d) Trove
Correct Answer: a) Swift
Explanation: Swift provides large-scale object storage in OpenStack, designed for storing and retrieving massive amounts of unstructured data such as media files or backups.
Question 39
Which SDN API enables external applications to communicate with the SDN controller and request specific services?
a) Northbound API
b) Southbound API
c) East/Westbound API
d) Application plane
Correct Answer: a) Northbound API
Explanation: The northbound API in SDN allows external applications to communicate with the SDN controller, request specific network services, and influence network behavior.
Question 40
Which SDN security mechanism ensures continued service availability by replicating important network components?
a) Redundancy
b) Controller-Switch trust
c) Dynamic device association
d) Fine-grained policy management
Correct Answer: a) Redundancy
Explanation: Redundancy replicates important network components, such as controllers, to ensure continued service availability in case of hardware or software failures.
