Question:- What is VVol?
Answer:- Virtual Volume knew as VVol is a new VM disk management feature concept introduced in vSphere 6.0. It enables array-based operation at the virtual disk level. It is automatically created when a virtual disk is created in a virtual environment.
Question:- Explain Cluster in VMware
Answer:- Cluster in VMware is a logical grouping of multi ESXi hosts. It allows you to add or delete the host from the cluster. It also provides a feature like HA, DRS, on the cluster.
Question:- Disadvantages of the VMware virtualization platform
Answer:- Some drawbacks of the VMware virtualization platform are: • It requires a considerable investment to buy the resources • High-end server needs which increase the cost. • Different technologies are required for its implementation.
Question:- Can we do vMotion between two data centers?
Answer:- Yes, we can do vMotion between two datacenters. However, for this VM should be powered off.
Question:- What is RDM?
Answer:- RDM is a sort form of Raw Device Mapping. It is a file stored in VMFS volume which acts as a proxy for a raw physical device. It allows you to store virtual machine data directly on LUN.
Question:- What is NFS?
Answer:- NFS is a Network file system. It is a file sharing protocol which ESXI host used to communicate with the NAS device. It is a specialized store device which connects to a network and can provide file aces service to ESXI hosts.
Question:- Explain what is Web-Sphere?
Answer:- Web-sphere is a tool based on Java and developed by IBM, to manage and create websites. Web-sphere is often used to build interactive web-oriented applications that support business functions required for e-commerce, it integrates all the data across different operating system and applications.
Question:- Mention what are the important component of Web-Sphere?
Answer:- Important components of Web-Sphere are • WebSphere Application Server or WAS : It connects the website users with Java servlets • Data–Server: For data persistence • Web–server: It provides the service of HTTP
Question:- Mention some of the features available in Web-sphere?
Answer:- Some of the features available in Web-sphere includes • It supports the servlet/JSP container functionality that runs on top of HTTP • It supports HTTP servers as IBM HTTP server, Netscape iPlanet server, and MS IIS • It supports Java Server Pages, HTML pages, Servlets and XML • It supports EJB component model and Workload Management.
Question:- Mention how does a WebSphere or any Application server clustering work?
Answer:- A WebSphere’s web server plugin component routes requests to WebSphere cluster web containers. If there is a communication failure with a particular cluster member, it will mark that member down and start routing all requests to the remaining cluster member till the original is available.
Question:- Mention what type of files are required to deploy an application into Websphere?
Answer:- WAR or EAR files are required to deploy an application into Web-sphere.
Question:- Mention what is asymmetric clustering in Web-sphere?
Answer:- In asymmetric clustering, the partition can be defined dynamically and runs on a single cluster at a time. The task which is particular to an appropriate cluster can be routed to that cluster. Usually, clustering is used by banks.
Question:- Explain what is node, node agent and node groups?
Answer:- • Node: It is a logical grouping of server processes maintained by WebSphere and that share common configuration and operational control • Nodeagent: Each node has a nodeagent that works along with the deployment manager to manage administration processes. It acts as a mediator between the node and deployment manager • Node Group: A node group is a grouping of nodes within a cell that have same capabilities
Question:- Explain what is a cell in WebSphere?
Answer:- A cell is referred as a grouping of nodes into a single administrative domain. A cell can have multiple nodes which are all managed from a single point.
