Page 1 of 37
WGU D415 - SDN | OA | OBJECTIVE
ASSESSMENT EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS D
Which module of OpenStack should be used to improve efficiency and
O
scalability of user storage and unstructured data?
N
O
Swift
T
Neutron
C
O
Ironic
PY
Congress - ✔✔✔ Correct Answer > Swift
Which module of OpenStack should a developer use for the
management of various virtual machine images?
Glance
Neutron
Murano
,Page 2 of 37
Sahara - ✔✔✔ Correct Answer > Glance
Which OpenStack module should be used to improve the storage and
management of secure authentication information?
Barbican
Trove
Cinder
D
Zaqar - ✔✔✔ Correct Answer > Barbican
O
N
O
How does a software-defined networking (SDN) southbound API
T
function?
C
O
It allows the controller to communicate with the OpenFlow switch and
PY
network routers.
It allows the controller to interchange elements among application,
control, and infrastructure layers.
It allows the controller to make a direct connection between applications
and the operating system.
It allows the controller to manage elements of the application layer
through the controllers. - ✔✔✔ Correct Answer > It allows the controller to
communicate with the OpenFlow switch and network routers.
,Page 3 of 37
Which layers are connected by the northbound API?
The application and control layers
The control and infrastructure layers
The application and operating layers
The operating and infrastructure layers - ✔✔✔ Correct Answer > The
application and control layers
D
What are the advantages of using centralized network infrastructure?
O
N
O
It helps in the easy deployment and management of systems and devices
T
within the network infrastructure.
C
It helps in the easy removal of malicious software from systems and
O
devices within the network infrastructure.
PY
It helps in easy access for end users to edge systems and devices within
the network infrastructure.
It helps in easy information retrieval by the end users of the network
infrastructure. - ✔✔✔ Correct Answer > It helps in the easy deployment and
management of systems and devices within the network infrastructure.
Which network function commonly blocks the connectivity between a
controller and a southbound interface?
, Page 4 of 37
Virtual private network (VPN)
Domain name server (DNS)
Firewall
Access point - ✔✔✔ Correct Answer > Firewall
What is a direct benefit of using network programmability instead of
manual configuration when implementing configuration changes?
D
Increased network stability owing to high latency
O
Reduced user error due to manual configuration
N
O
Decreased count of security policies
T
Maximized network bandwidth by analyzing the redundant data -
C
✔✔✔ Correct Answer > Reduced user error due to manual configuration
O
PY
What includes interoperable modules used to orchestrate large pools of
computing, storage, and networking resources?
OpenStack
Network functions virtualization (NFV)
OpenFlow
Network functions virtualization infrastructure (NFVI) - ✔✔✔
WGU D415 - SDN | OA | OBJECTIVE
ASSESSMENT EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS D
Which module of OpenStack should be used to improve efficiency and
O
scalability of user storage and unstructured data?
N
O
Swift
T
Neutron
C
O
Ironic
PY
Congress - ✔✔✔ Correct Answer > Swift
Which module of OpenStack should a developer use for the
management of various virtual machine images?
Glance
Neutron
Murano
,Page 2 of 37
Sahara - ✔✔✔ Correct Answer > Glance
Which OpenStack module should be used to improve the storage and
management of secure authentication information?
Barbican
Trove
Cinder
D
Zaqar - ✔✔✔ Correct Answer > Barbican
O
N
O
How does a software-defined networking (SDN) southbound API
T
function?
C
O
It allows the controller to communicate with the OpenFlow switch and
PY
network routers.
It allows the controller to interchange elements among application,
control, and infrastructure layers.
It allows the controller to make a direct connection between applications
and the operating system.
It allows the controller to manage elements of the application layer
through the controllers. - ✔✔✔ Correct Answer > It allows the controller to
communicate with the OpenFlow switch and network routers.
,Page 3 of 37
Which layers are connected by the northbound API?
The application and control layers
The control and infrastructure layers
The application and operating layers
The operating and infrastructure layers - ✔✔✔ Correct Answer > The
application and control layers
D
What are the advantages of using centralized network infrastructure?
O
N
O
It helps in the easy deployment and management of systems and devices
T
within the network infrastructure.
C
It helps in the easy removal of malicious software from systems and
O
devices within the network infrastructure.
PY
It helps in easy access for end users to edge systems and devices within
the network infrastructure.
It helps in easy information retrieval by the end users of the network
infrastructure. - ✔✔✔ Correct Answer > It helps in the easy deployment and
management of systems and devices within the network infrastructure.
Which network function commonly blocks the connectivity between a
controller and a southbound interface?
, Page 4 of 37
Virtual private network (VPN)
Domain name server (DNS)
Firewall
Access point - ✔✔✔ Correct Answer > Firewall
What is a direct benefit of using network programmability instead of
manual configuration when implementing configuration changes?
D
Increased network stability owing to high latency
O
Reduced user error due to manual configuration
N
O
Decreased count of security policies
T
Maximized network bandwidth by analyzing the redundant data -
C
✔✔✔ Correct Answer > Reduced user error due to manual configuration
O
PY
What includes interoperable modules used to orchestrate large pools of
computing, storage, and networking resources?
OpenStack
Network functions virtualization (NFV)
OpenFlow
Network functions virtualization infrastructure (NFVI) - ✔✔✔
