Which statement is true regarding virtual provisioning?
Answer(s): C
Virtual provisioning is a storage management technique that enables more efficient allocation of storage to compute systems. It allows storage administrators to create virtual storage resources that are presented to compute systems as if they were physical resources, even if the physical storage capacity does not exist. Virtual provisioning supports various types of virtual storage, including thin LUNs and thin clones. Thin LUNs enable shared and rapid expansion with only minor disruptions. Multiple shared storage pools can be created, and each pool can be allocated to multiple thin LUNs. However, virtual provisioning does not prevent issues that arise from oversubscription; it is important to monitor and manage capacity utilization to avoid performance degradation or service disruptions.
Section 2.5.1 Virtual Provisioning, page 107.
An organization is planning to secure the connection between the data center and cloud while performing data backup and replication.Which security control mechanism will help organization to achieve the desired security?
Answer(s): D
A virtual private network (VPN) is a security control mechanism that creates a secure and encrypted connection between two networks over a public network such as the internet1. A VPN can help an organization to achieve the desired security for data backup and replication between the data center and cloud by:Protecting data in transit from unauthorized access, interception, or modification2. Ensuring data confidentiality, integrity, and authenticity by using encryption algorithms and authentication protocols2.Providing network access control by verifying the identity of users and devices before granting access to resources2.Enabling remote access to cloud resources from any location without compromising security3
Which components should be used for interconnecting hosts to storage systems in FC SANs?
Answer(s): B
FC SANs components include network adapters, cables, and interconnecting devices. The interconnecting devices can be FC switches or FC directors, which are more scalable and reliable than FC hubs. The ports on these devices can be FC E_Ports, which connect two switches or directors together to form a fabric, or FC F_Ports, which connect to host or storage devices with FC N_Ports.
What is a key benefit for deploying a remote data protection and recovery solution in a data center environment?
Answer(s): A
According to 1, a remote data protection and recovery solution is a solution that enables data backup and recovery across geographically dispersed locations. It can be implemented using various technologies such as remote replication, cloud backup, and backup appliances. One of the key benefits for deploying a remote data protection and recovery solution in a data center environment is that it maximizes application and information availability1. This means that it ensures that critical applications and data are always accessible and recoverable in case of any disaster or disruption. A remote data protection and recovery solution can also provide other benefits such as reducing costs, improving security, and simplifying management.
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