Cloud Computing, a key enabling technology for speedy wide-area networks are one of the emerging technologies in Computer Science. One of the pressing challenges in the ongoing research in this particular domain is data confidentiality. There is an immense need to preserve important data and confidentiality in cloud computing, which means a more critical requirement for robust mechanisms to protect it from attackers or intruders. This paper proposes a broad and thorough probing multiple simulation-based software that examines and evaluates the execution, extensibility, strength, and intricacy of Cloud data center. This paper analyzes different Cloud services using Cloud-Sim, Cloud Analyst, and OPNET simulation tool. Services, cloud manageme...