QUESTION $2$

$($a$)$ Describe the following terminologies used in cloud computing. Give one example of cloud providers in each service category

$($i$)$ laaS $($Infrastructure as a Service$)$

$($ii$)$ PaaS $($Platform as a Service$)$

$($iii$)$ SaaS $($Software as a Service$)$

$(12)$

$($b$)$ Explain the any THREE characteristics of a peer$-$to$-$peer service. Give TWO examples of peer$-$topeer middleware?

QUESTION $3$

$($a$)$ The two types of transport services that the Intemet provides to its applications are TCP and UDP. Discuss the main characteristics that separate these services.

$(4)$

$($b$)$ Briefly define the following basic techniques and technologies that represent recent related advances in computer architecture, parallel processing, distributed computing, Intemet technology, and information services:

$($i$)$ High$-$performance computing $($HPC$)$ system versus High$-$throughput computing$($HTC$)$ system

$($ii$)$ Computer cluster versus computational grid

$($iii$)$ Service$-$oriented architecture $($SOA$)$

$($iv$)$ Pervasive computing versus Internet computing.

$(44)$