Question:- VMware FT is enabled per VM basis while VMware is enabled per cluster In the case of ESX host failure, virtual machines are the failed host and are re-started and powered-on the other active hosts in HA cluster. But FT-enabled virtual machines; there is no downtime. In the case of a host failure, the secondary VM will be activated, and it becomes primary and continue to run from the exact point where the primary VM is failed or left off.
Answer:- In the latest version of vSphere 5.5, it includes • ESXi Hypervisor enhancement • Virtual Machine Enhancement • VMware vCenter Server Enhancement • vSphere storage Enhancement • vSphere Networking Enhancements
Question:- What are the new features included in ESXi Hypervisor enhancement?
Answer:- In ESXi Hypervisor enhancement includes • Hot-pluggable PCIe SSD Devices:It supports SSDs (Solid State Disks) devices, and with a new enhancement, SSD device can be removed or added while a vSphere host is running. • Support for Reliable Memory Technology: vSphere ESXi hypervisor can take advantage of new hardware; vendor enabled Reliable Memory Technology, through which a region of memory is reported from the hardware to vSphere ESXi hypervisor. It is used to enhance the placement of VMKernel and other components like initial thread and hosted. It helps to protect against memory error • Enhancements to CPU C-states: A power process (C-state) is used to provide additional power savings
Question:- What is Fault Tolerant Logging?
Answer:- The communication between two ESXI host is known as Fault logging when FT is configured between them.
Question:- Explain vSS
Answer:- vSS stands for Virtual Standard Switch is responsible for communication of VMs hosted on a single physical host. It automatically detects a VM which wants to communicate with other VM on the same physical server.
Question:- Explain some features of VMware tool
Answer:- • It offers a simple wizard for setting configuration • Web browser interface • Easy maintenance of virtual machines
Question:- Define the term ’VMKenel’.
Answer:- VMWare Kernel is a proprietary kernel of VMware. It needs an operating system to boot and manage the kernel. A service console is being offered whenever VMWare kernel is booted.
Question:- What is the purpose of using Virtual Machine Port Group?
Answer:- Virtual Machine port group helps for Virtual machine communication.
Question:- Give three reasons for using VMware Workstation
Answer:- Three reasons for using VMware workstation are: • Enables the user to run more than one operating system on a single system • Saves the existing OS configuration in the form of virtual machines. • Allows you to work on different OS without switching between them.
Question:- What are pluggable devices which can be added while Virtual Machine is running?
Answer:- You can add HDDs and NIC while Virtual Machine is running.
Question:- What is the use of Promiscuous Mode?
Answer:- Promiscuous mode is useful when you want to run a virtual machine with network sniffers helps you to capture packet of that network. Moreover, if the promiscuous mode set to accept, all the communication is visible to all the virtual machines.
Question:- What is Cold and Hot Migration?
Answer:- When you migrate powered off or suspended, it is known as cold migration. When you migrate your running power on virtual machines, it is known as hot migration.
Question:- What is the primary use of port groups in data center virtualization?
Answer:- You can separate the network traffic by using port groups like FT, management traffic, vMotion, etc.
Question:- What is Virtual Desktop Infrastructure?
Answer:- Virtual Desktop Infrastructure which also known as VDI allows you to host the desktop operating system on the centralized window server in a data center. It is also known as server-based computing as it is the variation on the client-server computing model.
Question:- Explain the importance of snapshot in VMWare
Answer:- A VMWare snapshot is a copy of a virtual machine disk file which is used to restore a VM to a specific point in time when the system fails, or system error occurs.