D415 Software Defined Networking - Set 1 - Part 3

Test your knowledge of technical writing concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 41: Which financial benefit does network functions virtualization (NFV) offer to carriers?

The opportunity for pay-as-you-go services without a large up-front investment

The opportunity to own specialized network hardware rather than rent it

The opportunity to materially participate in and profit from software development

The opportunity for reduced complexity and cost of network security methods

Question 42: What are the software applications within a network functions virtualization (NFV) architecture that perform specific network tasks?

Virtual network functions (VNFs)

Application programming interfaces (APIs)

Network address translators (NATs)

Domain name systems (DNSs)

Question 43: How are network functions virtualization (NFV) and software-defined networks (SDNs) related?

They are two network infrastructure improvement models that are mutually beneficial and often used together.

They are both designed to improve network infrastructure but on different sides of the provider-client relationship.

They each improve networking, where SDN addresses only software and NFV addresses only hardware.

They do not have any significant relationship.

Question 44: Which concept is used to create differentiated access based on entitlement to administer a network device or controller?

Role-based administration control (RBAC)

Role-based access control (RBAC)

Authentication, authorization, and accounting (AAA)

Amortization, adjudication, and allowance (AAA)

Question 45: What are the advantages of using centralized network infrastructure?

It helps in the easy deployment and management of systems and devices within the network infrastructure.

It helps in the easy removal of malicious software from systems and devices within the network infrastructure.

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.

Question 46: What is a direct benefit of using network programmability instead of manual configuration when implementing configuration changes?

Increased network stability owing to high latency

Reduced user error due to manual configuration

Decreased count of security policies

Maximized network bandwidth by analyzing the redundant data

Question 47: Which module of OpenStack should be used to improve efficiency and scalability of user storage and unstructured data?

Swift

Neutron

Ironic

Congress

Question 48: Which module of OpenStack should a developer use for the management of various virtual machine images?

Glance

Neutron

Murano

Sahara

Question 49: Which OpenStack module should be used to improve the storage and management of secure authentication information?

Barbican

Trove

Cinder

Zaqar

Question 50: How does a software-defined networking (SDN) southbound API function?

It allows the controller to communicate with the OpenFlow switch and 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.

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