Cloud computing has evolved over time, from cloud computing $1\mathrm{.}0$ to cloud computing $3\mathrm{.}0.$ The success of cloud computing has advanced other technologies. At the same time, cloud computing has influenced the development of other fields and technologies. Recently, cloud computing has gained momentum. However, some people have reservations due to security concerns.

a$.$ Briefly describe the evolution of cloud computing from version $1\mathrm{.}0$ to version $3\mathrm{.}0.[4$ marks$]$

b$.$ Identify and explain two technologies that have advanced due to the success of cloud computing. $[4$ marks$]$

c$.$ How has cloud computing influenced the development of other fields and technologies? Provide specific examples.$[4$ marks$]$

d$.$ Discuss the factors contributing to the recent momentum gained by cloud computing.$[3$ marks$]$

Despite its advantages, some people have reservations about cloud computing. Explain the key security concerns associated with cloud computing.$$