An IoT network is a collection of $\_\_\_\_\_\_$ devices.

a$.$

Signal

b$.$

Machine to Machine

c$.$

Interconnected

d$.$

Network to Network

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How does blockchain improve supply chains?

a$.$

By automatically creating trade agreements between two parties

b$.$

By creating safe centralised marketplaces to trade goods on

c$.$

By stabilising the national currencies of the countries involved

d$.$

By transferring tokenised ownership through a software system

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Which of the following protocols does the secure digital card application use?

a$.$

HTTPS

b$.$

TCP

c$.$

SPI

d$.$

UDP

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What is the value of using blockchain networks with Internet of Things $($IoT$)?$

a$.$

Allowing blockchain users to follow self$-$driving cars and access these cars

b$.$

Avoiding a spoofing attack using the secured identity that is stored on a blockchain

c$.$

Enabling software that programs itself to solve problems without human intervention

d$.$

Solving expensive and complex calculations using Hyperledger Fabric mining