WGU D415 Software Defined Networking
Practice TEST STUDY GUIDE 2026/2027 COMPLETE
QUESTIONS WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<LATEST VERSION>
1. Nova (Compute) - ANSWER ✔ Provides foundation for handling the
compute resources of a cloud. Enables creation, scheduling, and
management of VM instances across a cluster of nodes.
2. Neutron (networking) - ANSWER ✔ Manages network resources in an
OpenStack cloud. Provides the ability to create and manage virtual
networks, routers, load balancers, and other network services.
3. Cinder (Block storage) - ANSWER ✔ Allows users to create and manage
block storage volumes that can be attached to VMs for persistent storage
4. Swift (Object storage) - ANSWER ✔ Allows users to store and retrieve
large amounts of unstructured data. Designed for scalability and durability.
5. Glance (Image service) - ANSWER ✔ Stores, catalogs, and retrieves VM
images, making them available for deployment.
6. Horizon (Dashboard) - ANSWER ✔ Provides GUI for users/admins to
manage the various OpenStack services
,7. Keystone (Identity service) - ANSWER ✔ IAM service that provides
directory of users, roles, and permissions in OpenStack. Offers
authentication, token issuance, and access control.
8. NIST SP 800-53 Security Controls - ANSWER ✔ Outlines a comprehensive
set of security controls across various control families, including access
control, configuration management, incident response, and more.
9. NIST SP 800-125B Hypervisor Security - ANSWER ✔ Provides guidance
on security the hypervisor layer to prevent unauthorized access, ensure
isolation between VMs, and protect against various attacks.
10.NIST SP 800-53 Control Families - ANSWER ✔ Organized into families,
each addressing a specific area of security concern. Ex: Access Control,
Audit and Accountability, System and Communications Protection, and
Security Assessment and Authorization
11.NIST SP 800-125B Virtualization Components - ANSWER ✔ Covers
various components such as host systems, guest systems, management
interfaces, and virtual networks
12.NIST SP 800-53 Control Baselines - ANSWER ✔ Guidelines for tailored
security measures based on the organization risk profile and the sensitivity
of the information being protected. (low, medium, and high)
13.NIST SP 800-125B Isolation and Segmentation - ANSWER ✔ Importance
of maintaining strong isolation between VMs to prevent unauthorized
information disclosure or unauthorized access.
,14.NIST SP 800-53 Continuous Monitoring - ANSWER ✔ Monitoring of
security controls to ensure ongoing compliance and effectiveness
15.NIST SP 800-125B Configuration Management - ANSWER ✔ Emphasizes
the need for secure configuration of hypervisor and virtual machine settings,
including parameters related to memory allocation, CPU scheduling, and
network configurations.
16.Which OSI model layer is responsible for the segment protocol data unit?
Network
Transport
Application
Data link - ANSWER ✔ Transport
17.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 - ANSWER ✔ OpenFlow
18.Which network automation tool is open source?
BlueCat gateway
Chef
Ansible
Puppet Enterprise - ANSWER ✔ Ansible
, 19.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 - ANSWER ✔ Using infrastructure as code to maintain a
reliable state
20.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) - ANSWER ✔ Software-defined
networking (SDN)
21.Which OpenStack unit provides authentication?
Cinder
Nova
Keystone
Neutron - ANSWER ✔ Keystone
22.Which interface in SDN allows the controller to communicate, interact, and
manage forwarding elements?
Westbound
Practice TEST STUDY GUIDE 2026/2027 COMPLETE
QUESTIONS WITH CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<LATEST VERSION>
1. Nova (Compute) - ANSWER ✔ Provides foundation for handling the
compute resources of a cloud. Enables creation, scheduling, and
management of VM instances across a cluster of nodes.
2. Neutron (networking) - ANSWER ✔ Manages network resources in an
OpenStack cloud. Provides the ability to create and manage virtual
networks, routers, load balancers, and other network services.
3. Cinder (Block storage) - ANSWER ✔ Allows users to create and manage
block storage volumes that can be attached to VMs for persistent storage
4. Swift (Object storage) - ANSWER ✔ Allows users to store and retrieve
large amounts of unstructured data. Designed for scalability and durability.
5. Glance (Image service) - ANSWER ✔ Stores, catalogs, and retrieves VM
images, making them available for deployment.
6. Horizon (Dashboard) - ANSWER ✔ Provides GUI for users/admins to
manage the various OpenStack services
,7. Keystone (Identity service) - ANSWER ✔ IAM service that provides
directory of users, roles, and permissions in OpenStack. Offers
authentication, token issuance, and access control.
8. NIST SP 800-53 Security Controls - ANSWER ✔ Outlines a comprehensive
set of security controls across various control families, including access
control, configuration management, incident response, and more.
9. NIST SP 800-125B Hypervisor Security - ANSWER ✔ Provides guidance
on security the hypervisor layer to prevent unauthorized access, ensure
isolation between VMs, and protect against various attacks.
10.NIST SP 800-53 Control Families - ANSWER ✔ Organized into families,
each addressing a specific area of security concern. Ex: Access Control,
Audit and Accountability, System and Communications Protection, and
Security Assessment and Authorization
11.NIST SP 800-125B Virtualization Components - ANSWER ✔ Covers
various components such as host systems, guest systems, management
interfaces, and virtual networks
12.NIST SP 800-53 Control Baselines - ANSWER ✔ Guidelines for tailored
security measures based on the organization risk profile and the sensitivity
of the information being protected. (low, medium, and high)
13.NIST SP 800-125B Isolation and Segmentation - ANSWER ✔ Importance
of maintaining strong isolation between VMs to prevent unauthorized
information disclosure or unauthorized access.
,14.NIST SP 800-53 Continuous Monitoring - ANSWER ✔ Monitoring of
security controls to ensure ongoing compliance and effectiveness
15.NIST SP 800-125B Configuration Management - ANSWER ✔ Emphasizes
the need for secure configuration of hypervisor and virtual machine settings,
including parameters related to memory allocation, CPU scheduling, and
network configurations.
16.Which OSI model layer is responsible for the segment protocol data unit?
Network
Transport
Application
Data link - ANSWER ✔ Transport
17.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 - ANSWER ✔ OpenFlow
18.Which network automation tool is open source?
BlueCat gateway
Chef
Ansible
Puppet Enterprise - ANSWER ✔ Ansible
, 19.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 - ANSWER ✔ Using infrastructure as code to maintain a
reliable state
20.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) - ANSWER ✔ Software-defined
networking (SDN)
21.Which OpenStack unit provides authentication?
Cinder
Nova
Keystone
Neutron - ANSWER ✔ Keystone
22.Which interface in SDN allows the controller to communicate, interact, and
manage forwarding elements?
Westbound
