VCP-DCV 6, Top Exam Questions and answers, 100% Accurate. Rated A+

VCP-DCV 6, Top Exam Questions and answers, 100% Accurate. Rated A+ 2.1. virtual machine - -is a software computer that like a physical computer runs an operating system and applications. just a set of files in a folder (encapsulated). usually the folder is located on what we call a datastore. legacy apps supported. Components: OS, vmware tools, virtual resources (cpu,mem,network adapt, disk controller, parallel/serial ports) 2.1. hypervisor - -provides physical resources dynamically to the virtual machines. allows VMs to be independent of each other. 2.1. virtualization - -multiple virtual machines on one host which share hardware resources. 2.1. CPU virtualization - -emulation imitates the processor, adds load to system. CPU virtualization offloads CPU to hardware. 2.1. Memory virtualization - -during VM creation. hypervisor assigns contiguous addressable memory space for that VM that only that VM has access to. 2.1. virtual networking - -a VM can have 1 or more ethernet adapters. These adapters connect to a virtual switch that acts much like its physical counterpart. virtual switches connect VMs 2.1. virtual switch - -ESXi host can have several virtual switches. own forwarding tables. support VLANs. no spanning tree protocol 2.1. vmnics - -switch connects to outbound network thru these outbound ethernet adapters. can be combined to simulate nic teaming. 1. VMFS datastore - -ESXi can format scsi-based storage devices as VMFS datastores. It is a cluster file system designed for vm's. Allows muliple VM's and ESXi host access to same storage. foundation for amazing features like live migration, autorestart and fault tolerance. ESXi places virutal disk files and other files on the datastore 2.1. encapsulation - -VM files are stored in folders on a VMFS or NFS datastore. super convenient folders for moving machines around. 2.1. software defined data center - -three components: policy based management and automation, virtualized infrastructure, hybrid cloud 2.1. private cloud - -pools of resources dedicated to a single enterprise 2.1. public cloud - -capex to opex. providers taht host IT operations for multiple businesses 2.1. hybrid cloud - -IT assets both internally and externally for DR, archiving. traffic overflow, QA/test, etc. 2.2. vSphere Client and Web Client - -Client for situations where direct connect to ESXi host. Web for everything after you install vcenter or esxi. you point the IP in the browser to the esxi host. i.e. https://esx01.... Use "configuration" tab in client to config storage/networking/add license, NTP, DNS, security file 2.2 and - -on ESXi contain entries made while system is up and running 2.2 Licensed features - -on ESXi config tab. manage licenses 2.3 ESXi features - -memory hardening, random unpredictable memory addresses; module integrity, digital signing; small disk footprint. 64bit only. 2.3 VMkernel - -aka. ESXi hypervisor 2.3 VMM - -virtual machine monitor request resources from VMkernel. One per VM. presents virtual hardware to the virtual machine. 2.3 ESXi accessed thru interfaces (5) - -web client (thru vcenter); vsphere client; vsphere command line; vmware api and sdk; CIM (common info model) 2.3 CIM - -management standard promoted by distributed management task force. Health status of ESXi HW only found thru CIM 2.3 DCUI - -Direct Console User Interface. similar to bios. keyboard UI. used for initial and basic installation. including hostname, IP config, DNS servers. config network adapter used by management network test/reboot/disable functionality. enable ESXi shell for troubleshooting and SSH. 2.3 DCUI lockdown mode - -disables all access except direct root access to ESXi hosts. forces all ops to vCenter Server system. 2.3 DNS and Routing tab - -lets change hostname/domain, DNS users, search domain, VMkernel default gateway. Click properties in upper right. 2.3 vCenter - -vCenter allows ability to centrally mange multiple ESXi hosts and their vms. back-end system manages features like HA and vmotion. vsphere client connects to it. 3.1 VM files - .vmx - -Configuration file 3.1 VM files - .vmdk - -disk configuration characteristics. virtual disk files (2) - and vm_. one file each for each virtual disk. 3.1 VM files - .nvram - -file with Vm's BIOS settings 3.1 VM files - .log - -Vm's log file 3.1 VM files - .vswp - -swap files used to reclaim memory during period of contention. page file in windows, swap in linux 3.1 VM files - .vmsd - -contains vm snapshots. snapshot description file. empty if no snapshots in vm 3.1 .vmss - -file created when VM suspended, VM suspend file 3.1 VM files - .vmtx - -if vm is a template .vmx becomes .vmtx 3.1 VMCI - -vm communication interface provides networking between vms on same host and to the host itself(hypervisor). faster then VMXNET3, can go 10 Gbit/s 3.1 VM hardware limitations - -up to 2 IDE controller devices, 3 parallel ports, 32 serial/com ports, 1 usb controler, 1 floppy, 4 scsi adapters, 15 devices (drives) per adapter, keyboard, mouse, 128 vCPUS, 4 TB ram, hardware 3D, 10 NICS. 3.1 VM hardware version - -each VMware product has corresponding vm hardware version. each level supports 5 major