SDN (Software-Defined Networking)

Which component in an SDN architecture is responsible for making decisions about where traffic should be sent?

Data plane

Control plane

Management plane

Application plane

In an SDN environment, what protocol is commonly used for communication between the controller and the network devices?

HTTP

SNMP

OpenFlow

ICMP

How does SDN improve network agility and flexibility?

By hardcoding routing decisions

By centralizing control and enabling programmability

By using static configurations

By relying on hardware-specific configurations

Which of the following is a benefit of using SDN in a data center?

Increased hardware costs

Reduced network scalability

Simplified network management

Complex network configuration

In an SDN architecture, what is the role of the northbound API?

Facilitates communication between the control plane and data plane

Provides interfaces for applications to interact with the controller

Manages the physical network devices

Handles the network traffic routing

Which of the following describes a key difference between traditional networking and SDN?

Traditional networking uses centralized control, while SDN uses distributed control

SDN decouples the control plane from the data plane, while traditional networking integrates them

Traditional networking is programmable, while SDN is not

SDN relies solely on proprietary protocols, while traditional networking uses open standards

What challenge does SDN address in network management?

Lack of dynamic configuration capabilities

High costs of network hardware

Limited network bandwidth

Insufficient security protocols

How does SDN enhance network security?

By eliminating the need for firewalls

By providing granular traffic control and centralized security policies

By increasing the complexity of the network

By decentralizing control and management

What is the purpose of the southbound API in an SDN architecture?

It connects the application layer to the controller

It provides a user interface for network administrators

It enables communication between the controller and network devices

It handles end-user traffic directly

In a software-defined network, what is the primary function of the data plane?

To make routing decisions

To manage network configurations

To interact with applications

To enforce policies and forward traffic

How can SDN help in optimizing network traffic flow?

By allowing dynamic adjustment of traffic paths based on real-time conditions

By using static routing tables

By using fixed hardware paths

By relying on manual configurations

Which SDN controller is known for its open-source nature and extensive community support?

Cisco ACI

OpenDaylight

VMware NSX

Juniper Contrail

What advantage does SDN offer in terms of network policy management?

Static policy enforcement

Policy enforcement only at the device level

Centralized and consistent policy application across the network

Manual policy configuration

In an SDN-based network, what role does the application layer play?

It processes data plane traffic

It handles packet forwarding

It directly manages the physical network devices

It defines the network policies and provides network services

Which of the following best describes network function virtualization (NFV) in the context of SDN?

Combining multiple network functions into a single physical device

Decoupling network functions from hardware and running them as virtualized services

Using proprietary hardware for network functions

Implementing network functions in hardware appliances

What is a primary benefit of using SDN in a cloud computing environment?

Increased reliance on physical network infrastructure

Reduced need for network monitoring

Enhanced control over virtual network resources

Static and inflexible network configurations

How does SDN facilitate network automation?

By requiring manual configuration for each network device

By eliminating the need for network policies

By relying on proprietary vendor solutions

By using centralized controllers to automate network tasks

In SDN, what is the purpose of network slicing?

To create isolated virtual networks for different applications or services

To reduce network security

To enforce static network configurations

To increase hardware dependence

Which SDN feature allows for the separation of network traffic for different tenants in a multi-tenant environment?

Static routing

Network slicing

Single-plane architecture

Manual configuration

What is the main purpose of using an SDN controller in a network?

To replace network devices

To physically connect network devices

To centrally manage and control the network traffic and policies

To eliminate the need for network security

Which protocol is often used for network device management and monitoring in an SDN environment?

FTP

DHCP

HTTP

SNMP

How does SDN improve the scalability of large enterprise networks?

By using static IP addressing

By centralizing control and enabling dynamic network adjustments

By increasing the number of hardware devices

By reducing network automation

In an SDN deployment, what is the benefit of using a hybrid approach that combines traditional networking with SDN?

Increased network rigidity

Reduced network visibility

The ability to transition gradually while leveraging existing infrastructure

Dependence on proprietary protocols

Which challenge is commonly associated with implementing SDN in existing networks?

Compatibility with legacy systems and devices

Increased hardware costs

Increased need for manual configurations

Reduced network flexibility

What is a key benefit of using SDN in a service provider network?

Static service delivery

Dynamic service provisioning and faster time to market

Increased manual intervention

Higher costs for service deployment

Which component in SDN architecture allows for programmability and automation of the network?

Network devices

Management plane

Control plane

Data plane

What is the primary function of the SDN southbound interface?

To communicate with the application layer

To manage end-user devices

To facilitate communication between the SDN controller and network devices

To handle end-user traffic

In SDN, what does the term "programmable network" refer to?

The use of fixed hardware configurations

The ability to dynamically adjust network behavior through software

The manual configuration of network devices

The elimination of network policies

How does SDN support network virtualization?

By binding network functions to specific hardware

By using proprietary hardware solutions

By enforcing static network configurations

By decoupling network functions from hardware, allowing them to run as virtualized services

What is a significant advantage of using SDN for network traffic engineering?

Increased manual configuration

Static and inflexible traffic paths

Dynamic adjustment of traffic flows based on real-time network conditions

Higher dependence on physical network devices

Which of the following best describes the function of an SDN northbound interface?

It connects the data plane to the control plane

It allows applications to interact with the SDN controller

It manages physical network devices

It handles packet forwarding

What is the role of the SDN application plane in network management?

It directly manages the physical network devices

It defines network policies and provides network services

It processes data plane traffic

It handles packet forwarding

In SDN, how is network resilience typically enhanced?

By relying on static configurations

By using proprietary hardware solutions

By enabling rapid reconfiguration and failover through centralized control

By reducing network automation

How does SDN facilitate the implementation of network security policies?

By requiring manual configuration of security policies

By eliminating the need for security protocols

By centralizing the management and enforcement of security policies

By using proprietary security solutions

What advantage does SDN offer in terms of network traffic visibility?

Reduced network monitoring

Increased manual inspection of traffic

Enhanced visibility through centralized monitoring and analytics

Reliance on hardware-based inspection

Which SDN feature allows for the isolation of network segments to improve security and performance?

Static routing

Network slicing

Manual configuration

Single-plane architecture

How does SDN improve the efficiency of network operations in a large enterprise?

By increasing manual intervention

By relying on proprietary vendor solutions

By centralizing control and enabling automation of network tasks

By reducing network scalability

Which of the following best describes the benefit of using SDN in a hybrid cloud environment?

Simplified and consistent network management across on-premises and cloud environments

Increased hardware dependency

Higher costs for network integration

Reduced network flexibility

In an SDN-based network, what is the main function of the management plane?

To handle packet forwarding

To make routing decisions

To interact with applications

To provide interfaces for monitoring and managing the network

What is the primary goal of using SDN in a service provider's network?

To increase manual configurations

To enable dynamic service provisioning and faster response to customer needs

To reduce network automation

To enforce static network policies

Which of the following is a challenge when implementing SDN in legacy networks?

Reduced network visibility

Incompatibility with existing network devices

Increased hardware costs

Reduced network flexibility

How does SDN help in reducing network downtime?

By relying on static routing

By enabling rapid reconfiguration and automated failover mechanisms

By using proprietary hardware solutions

By increasing manual configurations

What is the benefit of using open-source SDN controllers like OpenDaylight?

Increased reliance on proprietary solutions

Reduced community support and updates

Greater flexibility and customization options

Higher costs for deployment

In SDN, what is the primary function of the control plane?

To enforce policies and forward traffic

To interact with end-user applications

To make decisions about how traffic should be routed and managed

To manage physical network devices

How does SDN contribute to network agility?

By enforcing static network configurations

By increasing the number of physical devices

By reducing network visibility

By enabling dynamic and programmable network adjustments

Which of the following is a key feature of SDN that enhances network security?

Decentralized control

Static security policies

Manual configuration of security protocols

Centralized policy management and enforcement

What role does the SDN controller play in network troubleshooting?

It physically repairs network devices

It provides centralized visibility and tools for diagnosing network issues

It eliminates the need for troubleshooting

It relies on manual inspection of network traffic

How does SDN improve the efficiency of managing large-scale networks?

By centralizing control and automating routine tasks

By increasing manual configuration requirements

By relying on proprietary vendor solutions

By reducing network visibility

In an SDN architecture, what is the primary benefit of using northbound APIs?

To enforce data plane policies

To manage physical network devices

To enable applications to interact with the controller and manage the network

To handle packet forwarding

What is the advantage of using SDN for load balancing in a data center?

Increased manual intervention

Static and inflexible load balancing decisions

Higher costs for load balancing hardware

Dynamic adjustment of traffic based on real-time conditions and centralized control

SDN (Software-Defined Networking)

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