VMware Data Center Virtualization (VCA-DCV) Certification Study Guide, Exams of Advanced Education

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VMware Data Center Virtualization (VCA-DCV)

(VMware Data Center Virtualization study aid

for the VCA-DCV certification)

Hypervisor (ESXi) - A virtualization layer run on physical servers that abstracts processor, memory, storage, and resources into multiple virtual machines. vCenter Server - The central point for configuring, provisioning, and managing virtualized IT environments. It provides essential datacenter services such as access control, performance monitoring, and alarm management. vSphere Client - An interface that enables users to connect remotely to vCenter Server or ESXi from any Windows PC. vSphere Web Client - A Web interface that enables users to connect remotely to vCenter Server from a variety of Web browsers and operating systems. vSphere SDKs - Feature that provides standard interfaces for VMware and third-party solutions to access VMware vSphere. vSphere Virtual Machine File System (VMFS) - A high performance clustered file system for ESXi virtual machines. vSphere Virtual SMP - Enables a single virtual machine to use multiple physical processors simultaneously. vSphere vMotion (vMotion) - Enables the migration of powered-on virtual machines from one physical server to another, with zero down time, continuous service availability, and complete transaction integrity. During migration the VM is unaffected. vSphere Storage vMotion - Enables the migration of virtual machine files from one storage device to another while it's running. vSphere High Availability (HA) - If a server fails, this feature ensures that the affected virtual machines are restarted on other available servers that have spare capacity. vSphere Distributed Resource Scheduler (DRS) - Allocates and balances computing capacity dynamically across collections of hardware resources for virtual machines.

vSphere Storage DRS - Allocates and balances storage capacity and I/O dynamically across collections of datastores. This feature includes management capabilities that minimize the risk of running out of space and the risk of I/O bottlenecks slowing the performance of virtual machines. vSphere Fault Tolerance (FT) - This feature maintains a secondary copy of a virtual machine. If the virtual machine becomes unavailable, the secondary machine becomes immediately active. vSphere Distributed Switch (VDS) - A virtual switch that can span multiple ESXi hosts, enabling significant reduction of on-going network maintenance activities and increasing network capacity. Host Profiles - A feature that simplifies host configuration management through user-defined configuration policies. vSphere Auto Deploy - Facilitates rapid server deployment and provisioning of vSphere hosts by leveraging the network boot capabilities of x86 servers together with the small footprint of the ESXi hypervisor. vApp - A format for packaging and managing applications and the virtual machines they run on. Data Center Virtualization - The conversion of hardware devices into software resources. Availability, Scalability, Optimization, Management - The challenges of Data Center Virtualization. Snapshot - Allows you to capture the entire running state of a virtual machine, from the contents of its hard disks to the state of its CPU and memory. Not designed for daily backups. Bare-Metal Backup - A complete image-based backup of a virtual machine while its running. Bare-Metal - Type of backup that allows the restoration of individual files. False - Bare-Metal Backups can only be restored to the device where it was backed up. True or False? Hot Add - Feature that allows you to increase the capabilities of a virtual machine without restarting it. Image-based Backups. - Another name for Bare-Metal Backups. Hypervisor - Provides the virtual hardware. Hypervisor - Acts as a Resource Traffic Cop.

VMware Virtual Machine (VM) - A large chunk of memory on an ESXi host. False - vMotion requires shared storage. True or False? vSphere Distributed Resource Scheduler (DRS) - Automated use of vMotion for policy-based balancing of virtual machines across ESXi hosts. vSphere Distributed Power Management (DPM) - Consolidates (via DRS) virtual machines to fewer hosts during non-peak times. True - Storage vMotion can migrate VMs from any supported storage type to another, including local storage devices. True or False? Storage I/O Control - Controls the storage usage of busy virtual machines so that other virtual machines can still get an appropriate amount of storage performance. vSphere Data Protection (VDP) - Leverages data duplication to make backup storage usage more efficient. vSphere API for Data Protection (VADP) - API that allows 3rd party software vendors to create image-based backups of virtual machines. vSphere High Availability (HA) - Can monitor the status of ESXi hosts, VMs, and Applications. False - vSphere HA prevents virtual machines from crashing. True or False? Hyperic - Enables vSphere HA to monitor Applications. Fault Tolerance (FT) - A form of active/passive clustering that can perpetually mirror a running virtual machine to another ESXi host to prevent application data loss and corruption. Shared Storage - Storage visible to multiple ESXi hosts typically used to store VMs and ISO files. Shared Storage - DRS, DPM, Storage DRS, HA, and FT all require this to work. Fibre Channel, Fibre Channel over Ethernet, iSCSI, NFS, Local - The types of Shared Storage supported by vSphere. vSphere Storage Appliance (VSA) - A component of vSphere that allows you to create shared storage from the local storage devices in your ESXi hosts. vFlash - A technology to leverage internal SSD drives to accelerate the read performance of virtual machines.

Datastores - Containers for storing virtual machines. These containers are logical volumes that allow you to organize the storage of ESXi hosts and virtual machines. VMFS, NFS - The two types of datastores. iSCSI, NFS, FCoE - The three types of IP Storage. Virtual Switch - Attaches virtual machines to a physical network. Standard, Distributed - The two types of virtual network switches. Standard Virtual Switch - Manages virtual machine networking at the host level. Distributed Virtual Switch - Manages virtual machine networking at the data center level. VLANs - Provides logical separation of network traffic, and are often used to isolate different subnets. Traffic Shaping - Allows you to restrict the inbound and outbound network bandwidth of a group of virtual machines. Port Mirroring - Allows you to capture a virtual machine's traffic for troubleshooting or intrusion prevention. VLANs, Traffic Shaping, Port Mirroring, QoS & DSCP, CDP/LLDP - vSphere's networking features. QoS, DSCP - Networking standards that allow network switches to prioritize certain network traffic over others. CDP, LLDP - Discovery protocols used to identify neighboring physical network switches. vCenter Operations Manager (vCOPS) - Monitors performance and capacity trends to generate health, risk, and inefficiency super metrics based on dynamically adjusting thresholds. vCenter Configuration Manager (vCCM) - Monitors the configuration of vCenter, ESXi hosts, and VMs, notifies you about changes, and helps correlate current problems to those changes. vCenter Site Recovery Manager (SRM) - An orchestration tool for disaster recovery and data center migration that facilitates VM and storage replication. Virtual Machines (VMs) - A cost-effective way to scale out to additional servers to have better application isolation. Hot Add - The ability to add more CPUs and memory to servers without incurring downtime.