Stackedge IT Services Interview Questions and Answers

Type 1 hypervisor is a bare-metal hypervisor that runs directly on the host's hardware to control the hardware and to manage guest operating systems.

• Type 1 hypervisors provide high performance and efficiency as they have direct access to the host's hardware.

• Examples of type 1 hypervisors include VMware vSphere/ESXi, Microsoft Hyper-V, and Citrix XenServer.

ESXi is a bare-metal hypervisor developed by VMware for virtualization.

• ESXi is a type-1 hypervisor, meaning it runs directly on the physical hardware to control the hardware and to manage guest operating systems.

• To deploy ESXi in VMware, you need to download the ESXi ISO image from the VMware website.

• Create a bootable USB drive or CD/DVD with the ESXi ISO image and boot the server from it.

• Follow the on-screen instructions to install ESXi on the server, configure network setti...read more

LUN stands for Logical Unit Number, a unique identifier for a logical unit in a storage area network.

• LUN is used to differentiate between different storage devices or partitions within a storage array.

• It helps in managing and accessing data stored on different storage units.

• For example, in a SAN environment, each disk or partition may be assigned a LUN for identification.

LPARs (Logical Partitions) are virtual servers created within a physical server to run multiple operating systems and applications.

• LPARs allow for better utilization of resources by dividing a physical server into multiple virtual servers.

• Each LPAR has its own resources such as CPU, memory, and storage, and can run its own operating system.

• LPARs can be dynamically resized and moved between physical servers for better resource allocation.

• Examples of LPAR technologies include I...read more

PVS stands for Provisioning Services in Citrix, used for streamlining the management of virtual desktops and servers.

• PVS allows for the central management of a single vDisk image for multiple virtual machines.

• It reduces storage costs by enabling the sharing of a single vDisk across multiple machines.

• PVS helps in simplifying updates and maintenance of virtual desktops and servers.

• It provides a way to easily scale up or down the number of virtual machines using the same vDisk.

• P...read more

Netscaler upgrade is the process of updating the firmware or software on a Citrix Netscaler device.

• Netscaler upgrade improves security by patching vulnerabilities

• It can also introduce new features and enhancements

• Proper planning and testing are essential before performing an upgrade

• Common tools for Netscaler upgrades include Citrix ADM and CLI commands

Patching is the process of updating software to fix vulnerabilities and improve performance.

• Identify which systems need patching

• Download and install patches from vendors

• Test patches in a controlled environment before deploying

• Schedule patching during off-peak hours to minimize disruption

• Monitor systems post-patching to ensure stability and security

AS400 is a computer system developed by IBM for business applications.

• AS400 stands for Application System/400.

• It is a midrange computer system used for running business applications.

• AS400 uses the IBM i operating system.

• It is known for its reliability, security, and scalability.

• Common applications running on AS400 include ERP systems, financial software, and inventory management.

• AS400 has a strong user base in industries like manufacturing, finance, and healthcare.