Answer 1

The definition of ‘Cloud Computing’ is quite simple: it is a delivery of on-demand computing services, from the apps to the storage and processing power, usually over the internet and on a pay-as-you-go basis.
Cloud computing permits users to access software and applications from wherever they are; the computer programs are hosted by an outside party and reside in the cloud.
More details about Cloud Computing: https://computools.com/cloud-computing-for-businesses/

‘Big data’ constitutes any big amount of different kinds of information that a company gathers and stores. Big data is best defined with the help of the three main characteristics:
Volume: the information can be gathered from many sources, and new technologies allow safe and rational storing.
Velocity: everyday data comes in with the high speed, and businesses have to analyze it in near-real time.
Variety: the data is gathered and stored in all kinds of formats, such as texts, emails, videos etc.
Info about Big Data: https://computools.com/big-data-challenges-and-solutions/