WGU D415 EXAM STUDY SHEET 2026 FULL
SOLUTION GUARANTEED TO PASS
⫸ SDN. Answer: Centralizes control by using a centralized controller
that manages the network
⫸ SDN. Answer: Network devices are considered "dumb"
⫸ SDN. Answer: Used to optimize network performance, improve
agility, and enable innovative appliactions
⫸ SDN. Answer: Particularly useful in datacenters, clouds, and
situations requiring network flexibility
⫸ NFV. Answer: Focuses on virtualizing and consolidating network
functions
⫸ NFV. Answer: Aims to replace hardware-based network appliances
⫸ NFV. Answer: Virtualizes network functions and running them on
standard servers, reducing the need for dedicated hardware
appliances.
⫸ NFV. Answer: Functions deployed as Virtual Network Functions
(VNF's) and can be dynamically deployed and scaled
, ⫸ NFV. Answer: Optimize network infrastructure, reduce hardware
dependence, and streamline network service deployment
⫸ NFV. Answer: Useful for service providers, telecom operators, and
orgs with complex network requirements
⫸ Southbound API. Answer: Used to communicate between the
control plane and data plane
⫸ Northbound API. Answer: Communicate between control plane
and application/management systems
⫸ Southbound API. Answer: OpenFlow, NETCONF, and gRPC
⫸ Northbound API. Answer: RESTful APIs, WebSockets, and custom
appliaction-specific APIs
⫸ Southbound API. Answer: Control plane instructs the data plane on
how to handle network traffic
⫸ Northbound API. Answer: Provide way for external applications,
services, or orchestrators to request network services, retrieve
network status, and manipulate network behavior.
SOLUTION GUARANTEED TO PASS
⫸ SDN. Answer: Centralizes control by using a centralized controller
that manages the network
⫸ SDN. Answer: Network devices are considered "dumb"
⫸ SDN. Answer: Used to optimize network performance, improve
agility, and enable innovative appliactions
⫸ SDN. Answer: Particularly useful in datacenters, clouds, and
situations requiring network flexibility
⫸ NFV. Answer: Focuses on virtualizing and consolidating network
functions
⫸ NFV. Answer: Aims to replace hardware-based network appliances
⫸ NFV. Answer: Virtualizes network functions and running them on
standard servers, reducing the need for dedicated hardware
appliances.
⫸ NFV. Answer: Functions deployed as Virtual Network Functions
(VNF's) and can be dynamically deployed and scaled
, ⫸ NFV. Answer: Optimize network infrastructure, reduce hardware
dependence, and streamline network service deployment
⫸ NFV. Answer: Useful for service providers, telecom operators, and
orgs with complex network requirements
⫸ Southbound API. Answer: Used to communicate between the
control plane and data plane
⫸ Northbound API. Answer: Communicate between control plane
and application/management systems
⫸ Southbound API. Answer: OpenFlow, NETCONF, and gRPC
⫸ Northbound API. Answer: RESTful APIs, WebSockets, and custom
appliaction-specific APIs
⫸ Southbound API. Answer: Control plane instructs the data plane on
how to handle network traffic
⫸ Northbound API. Answer: Provide way for external applications,
services, or orchestrators to request network services, retrieve
network status, and manipulate network behavior.
