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SDN Quiz

Total questions: 57

Worksheet time: 29mins

Name
Class
Date
1.

SDN stands for

a)

Software-Defined Networking

b)

System Data Network

c)

Software Data Node

d)

Standard Defined Network

2.

The main concept of SDN is the separation of

a)

Hardware and Software

b)

Control plane and Data plane

c)

LAN and WAN

d)

IPv4 and IPv6

3.

In SDN, the component that makes decisions about data flow is

a)

Router

b)

Switch

c)

Controller

d)

Access point

4.

The protocol most commonly used for communication between controller and switches is

a)

HTTP

b)

SNMP

c)

OpenFlow

d)

ICMP

5.

Which of the following is an application of SDN?

a)

Cloud computing

b)

Social media

c)

Word processing

d)

Game development

6.

SDN enables __________ resource allocation.

a)

Manual

b)

Static

c)

Dynamic

d)

Temporary

7.

The SDN controller is often referred to as the

a)

Heart of the network

b)

Brain of the network

c)

Memory of the network

d)

Spine of the network

8.

Which plane is responsible for packet forwarding in SDN?

a)

Control plane

b)

Data plane

c)

Management plane

d)

Application plane

9.

In SDN data centers, SDN allows for

a)

Manual IP management

b)

Centralized control

c)

Hardware-based routing

d)

Decentralized operations

10.

One of the major benefits of SDN is

a)

Increased manual configuration

b)

Vendor lock-in

c)

Flexibility and scalability

d)

Reduced automation

11.

In cloud computing, SDN helps by providing

a)

Hardware load balancing

b)

Automated provisioning

c)

Manual configuration

d)

Static routing

12.

Which of these is NOT a use case of SDN?

a)

WAN optimization

b)

Traffic engineering

c)

Hardware-only management

d)

IoT device management

13.

In SDN, applications interact with the controller using

a)

Northbound APIs

b)

Southbound APIs

c)

Westbound APIs

d)

Eastbound APIs

14.

In the Leaf-Spine architecture, which switches connect servers?

a)

Spine switches

b)

Leaf switches

c)

Core routers

d)

Edge routers

15.

The Leaf-Spine architecture minimizes

a)

Packet loss

b)

Latency

c)

Cost

d)

Complexity

16.

ECMP in SDN stands for

a)

Equal-Cost Multi-Path

b)

Ethernet Channel Multipath

c)

Equal Connection Management Protocol

d)

Enhanced Control Management Plane

17.

A major advantage of SDN in WAN is

a)

Reduced control

b)

Increased manual effort

c)

Real-time traffic optimization

d)

Fixed routing paths

18.

SD-WAN uses SDN principles to manage

a)

Local servers

b)

Remote sites

c)

Printers

d)

Databases

19.

Zero-Touch Provisioning is a feature of

a)

SDN data centers

b)

SD-WAN

c)

Network virtualization

d)

Manual configuration

20.

Network Virtualization allows

a)

One network per switch

b)

Multiple virtual networks on one physical infrastructure

c)

Hardware-only networks

d)

Static configurations

21.

The encapsulation technique used in SDN network virtualization is

a)

DNS

b)

VXLAN

c)

SMTP

d)

HTTP

22.

SDN improves network troubleshooting using

a)

Command-line only tools

b)

Manual monitoring

c)

In-band Network Telemetry

d)

Ping utilities only

23.

In access networks, SDN is applied in

a)

PON and RAN

b)

VPN and LAN

c)

DNS and HTTP

d)

IPv4 and IPv6

24.

The SDN controller communicates downward using

a)

Northbound APIs

b)

Southbound APIs

c)

Upstream signals

d)

Eastbound APIs

25.

In data centers, SDN improves

a)

Manual configuration

b)

Scalability and automation

c)

Cabling complexity

d)

Hardware replacement

26.

A disadvantage of Leaf-Spine architecture is

a)

High latency

b)

Complexity in cabling

c)

Poor scalability

d)

Low availability

27.

Which SDN feature ensures that network traffic is distributed evenly?

a)

VLAN tagging

b)

ECMP routing

c)

OSPF routing

d)

Spanning Tree

28.

SDN helps in network security by providing

a)

Real-time monitoring

b)

Hardware firewalls only

c)

Limited rules

d)

Static access lists

29.

In IoT environments, SDN helps by

a)

Limiting connectivity

b)

Isolating device traffic

c)

Reducing automation

d)

Disabling sensors

30.

The Open Networking Foundation (ONF) was formed in

a)

2000

b)

2005

c)

2011

d)

2016

31.

SDN enhances DevOps by

a)

Manual deployment

b)

Automating configuration and service rollout

c)

Disabling network automation

d)

Restricting service delivery

32.

The function of Open vSwitch (OVS) is to

a)

Manage virtual networks

b)

Store data

c)

Route emails

d)

Create hardware firewalls

33.

Open vSwitch (OVS) is implemented mainly using

a)

Python

b)

C

c)

Java

d)

Go

34.

OVN stands for

a)

Open Virtual Node

b)

Open Virtual Network

c)

Open Virtual Number

d)

Open Variable Network

35.

In SDN, the component that translates application requirements into configurations is

a)

Control Layer

b)

Infrastructure Layer

c)

Application Layer

d)

Hardware Layer

36.

The architecture layer containing physical devices in SDN is

a)

Application layer

b)

Control layer

c)

Infrastructure layer

d)

Management layer

37.

A SmartNIC is a

a)

Hardware firewall

b)

Intelligent network interface card

c)

Controller software

d)

Router module

38.

SmartNICs improve

a)

Power efficiency

b)

Manual configuration

c)

Latency only

d)

Cabling

39.

Which type of SDN uses both legacy and SDN-enabled devices?

a)

Open SDN

b)

Overlay SDN

c)

Automation-based SDN

d)

API-based SDN

40.

In SDN, OpenFlow is a

a)

Security tool

b)

Protocol

c)

Database

d)

Firewall

41.

SDN enables network

a)

Centralization and automation

b)

Decentralization and complexity

c)

Hardware isolation only

d)

Static management

42.

SDDC stands for

a)

Software Defined Data Center

b)

Standard Digital Data Connection

c)

Secure Dynamic Data Control

d)

Simple Data Distribution Center

43.

The main goal of SDDC is

a)

Hardware dependency

b)

Maximum flexibility and automation

c)

Manual control

d)

High maintenance

44.

Open vSwitch supports multiple (a)   technologies.

45.

The tool used to configure Open vSwitch kernel module is

a)

ovs-dpctl

b)

ovs-northd

c)

ovs-appctl

d)

ovs-ctl

46.

The main programming interface of SDN is provided by

a)

APIs

b)

MAC addresses

c)

IP headers

d)

VLANs

47.

Which SDN controller feature provides centralized security?

a)

Northbound APIs

b)

Firewall module

c)

Policy enforcement

d)

Device configuration

48.

SDN-based WANs are useful for

a)

Small home networks

b)

Large enterprise networks

c)

Isolated routers

d)

Gaming consoles

49.

In SDN telemetry, packets carry

a)

User data only

b)

Telemetry instructions

c)

Switch configurations

d)

IP tables

50.

The ultimate goal of SDN is to

a)

Make networks programmable and flexible

b)

Increase hardware cost

c)

Reduce automation

d)

Limit virtualization

51.

In SDN, which layer translates high-level application requirements into specific configurations?

a)

Application Layer

b)

Control Layer

c)

Infrastructure Layer

d)

Management Layer

52.

The SDN controller’s southbound interface primarily communicates with

a)

Applications

b)

Network devices

c)

APIs

d)

Users

53.

The Open Networking Foundation (ONF) standardized which SDN protocol?

a)

NETCONF

b)

SNMP

c)

OpenFlow

d)

RESTCONF

54.

Which SDN use case enables isolated virtual networks over shared infrastructure?

a)

Network slicing

b)

Network virtualization

c)

Access network optimization

d)

Traffic shaping

55.

VXLAN in SDN is used for

a)

Routing IP traffic

b)

Encapsulation in virtual networks

c)

QoS monitoring

d)

Controller synchronization

56.

Which SDN feature supports efficient load balancing in data centers?

a)

ECMP

b)

OSPF

c)

BGP

d)

MPLS

57.

In SD-Fabric, what role does ONOS play?

a)

A virtualization platform

b)

A distributed SDN controller

c)

A routing protocol

d)

A monitoring agent

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