WGU D415 | SOFTWARE-DEFINED NETWORKING
(SDN) D415 - SDN EXAM NEWEST 2026-2027
COMPLETE QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE
Which OSI model layer is responsible for the segment protocol data unit?
Network
Transport
Application
Data link
Transport
Which protocol in the software-defined networking (SDN) framework is responsible for
defining the communication between the controller and a network device?
OpenFlow
Telnet
Point-to-point
Address resolution
OpenFlow
Which network automation tool is open source?
,BlueCat gateway
Chef
Ansible
Puppet Enterprise
Ansible
What is a benefit of using network automation?
Backing up and restoring data
Using infrastructure as code to maintain a reliable state
Dynamic allocation of IP addresses
Boosting storage
Using infrastructure as code to maintain a reliable state
Which service introduces flexibility, dynamism, and automation into the management of
network objects?
Open source for network functions virtualization (NFV)
OpenStack
Network functions virtualization (NFV)
Software-defined networking (SDN)
Software-defined networking (SDN)
Which OpenStack unit provides authentication?
,Cinder
Nova
Keystone
Neutron
Keystone
Which interface in SDN allows the controller to communicate, interact, and manage
forwarding elements?
Westbound
Flow ID
Southbound
Eastbound
Southbound
Which OpenFlow SDN controller has a multi-threaded, cross-platform, and modular
emphasis?
Flow Visor
Open Daylight (ODL) Project
Floodlight
Beacon
Beacon
, Which port number is used as the destination of a server by Dynamic Host
Configuration Protocol?
23
53
67
68
67
Which IPv6 address identifies each network interface?
Multicast
Broadcast
Anycast
Unicast
Anycast
Which network virtualization (NV) approach refers to a logical local area network (LAN)
based on physical LANs?
Virtual private networks (VPN)
Virtual private LAN services (VPLS)
Virtual LANs (VLANs)
Wide area network (WAN)
Virtual LANs (VLANs)
(SDN) D415 - SDN EXAM NEWEST 2026-2027
COMPLETE QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE
Which OSI model layer is responsible for the segment protocol data unit?
Network
Transport
Application
Data link
Transport
Which protocol in the software-defined networking (SDN) framework is responsible for
defining the communication between the controller and a network device?
OpenFlow
Telnet
Point-to-point
Address resolution
OpenFlow
Which network automation tool is open source?
,BlueCat gateway
Chef
Ansible
Puppet Enterprise
Ansible
What is a benefit of using network automation?
Backing up and restoring data
Using infrastructure as code to maintain a reliable state
Dynamic allocation of IP addresses
Boosting storage
Using infrastructure as code to maintain a reliable state
Which service introduces flexibility, dynamism, and automation into the management of
network objects?
Open source for network functions virtualization (NFV)
OpenStack
Network functions virtualization (NFV)
Software-defined networking (SDN)
Software-defined networking (SDN)
Which OpenStack unit provides authentication?
,Cinder
Nova
Keystone
Neutron
Keystone
Which interface in SDN allows the controller to communicate, interact, and manage
forwarding elements?
Westbound
Flow ID
Southbound
Eastbound
Southbound
Which OpenFlow SDN controller has a multi-threaded, cross-platform, and modular
emphasis?
Flow Visor
Open Daylight (ODL) Project
Floodlight
Beacon
Beacon
, Which port number is used as the destination of a server by Dynamic Host
Configuration Protocol?
23
53
67
68
67
Which IPv6 address identifies each network interface?
Multicast
Broadcast
Anycast
Unicast
Anycast
Which network virtualization (NV) approach refers to a logical local area network (LAN)
based on physical LANs?
Virtual private networks (VPN)
Virtual private LAN services (VPLS)
Virtual LANs (VLANs)
Wide area network (WAN)
Virtual LANs (VLANs)
