Cloud computing is a service oriented concept which offers everything as a service. These services are deployed at the server with necessary credentials in order to provide reliable services to the customer. The customer always wants to process and store the data in the cloud with an efficient access over different location. The security is the key parameter to secure the customer's data. The cloud computing security issues are addressed in various standards and techniques which lacks in providing a complete solution. The privacy issues in the cloud access are handled and assessed by using privacy protocols and assessment techniques which are also addressed. The trust issues in cloud computing has been addressed with different models. An inter-cloud and intra-cloud standard of cloud interoperability has been identified in order to highlight the challenges exist during the cloud interaction. The cloud resources are deployed over cloud environment with different models also faces a problem. This paper focuses on a recent survey related to the cloud interoperability, security, privacy and trust based on standards and guidelines have been analyzed. The overall focus on this paper is to establish an interoperability among different cloud service providers for effective interaction by maximizing the QoS of cloud computing.

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Cloud Computing provides various services to the customer in a flexible and reliable manner. Virtual Machines (VM) are created from physical resources of the data center for handling huge number of requests as a task. These tasks are executed in the VM at the data center which needs excess hosts for satisfying the customer request. The VM migration solves this problem by migrating the VM from one host to another host and makes the resources available at any time. This process is carried out based on various algorithms which follow a predefined capacity of source VM leads to the capacity issue at the destination VM. The proposed VM migration technique performs the migration process based on the request of the requesting host machine. This technique can perform in three ways namely single VM migration, Multiple VM migration and Cluster VM migration. Common Deployment Manager (CDM) is used to support through negotiation that happens across the source host and destination host for providing the high quality service to their customer. The VM migration requests are handled with an exposure of the source host capabilities. The proposed analysis also uses the retired instructions with execution by the hypervisor to achieve high reliability. The objective of the proposed technique is to perform a VM migration process based on the prior knowledge of the resource availability in the target VM.

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