If you're looking for IBM WebSphere Server Administration Interview Questions & Answers for Experienced or Freshers, you are at the right place. There are a lot of opportunities from many reputed companies in the world. According to research, IBM WebSphere Server Administration has a market share of about 0.4%. So, You still have the opportunity to move ahead in your career in IBM WebSphere Server Administration. Mindmajix offers Advanced IBM WebSphere Server Administration Interview Questions 2023 that helps you in cracking your interview & acquire your dream career as an IBM WebSphere Server Administrator.
The following are the differences between application and web server-
|Application Server||Web Server|
|Application Server with the help of various protocols provides business logic to clients for their applications.||Web Server allows clients to visit pages in the browser.|
|The number of protocols to provide business logic to clients may vary.||HTTP requests are exclusively handled by the Web Server.|
|The delegation model is complex.||The delegation model is considered to be simple.|
|Dynamic in nature can be configured to work as a web server.||Web Server can’t be configured to work as an Application Server.|
WebSphere is developed by IBM. This is a tool that is designed with the help of Java. IBM has developed this tool in order to create and manage websites. These websites are mainly used for the purpose of business and business functions which are helpful in the field of e-commerce. The data gets integrated carefully across various systems and operating applications by WebSphere. A webSphere application server that is WAS is the central tool for WebSphere.
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WebSphere edge is basically the components of a set if server application which is used for improving the performance and the function of systems which are based on the web. This WebSphere edge is considered to be the part of IBM WebSphere product tool. It has the following four components -
1. It Dispatches Network
2. Distributed contents
3. Proxy is well cached
The edge also provides services for the application.
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WebSphere tool of IBM has three basic and important components -
WAS - WAS which is the abbreviation of the WebSphere application server, a blessing the users of the website to connect with the Java applications which are also known as Java servlets.
The server of the web - This server provides an HTTP service.
The server of data - This server is used for getting persistent data.
WebSphere has the following list of features -
The default messaging provider provides functions that are well published and also subscribed. For transportation, it uses the bus of integration of services. These service integration destinations also correspond to various JMS connection destinations and factories.
The WebSphere application gets clustered with the help of the server's plugin components routes which allows the cluster to get requested. It routes all the requests to a particular member of the cluster if one of them fails to work properly due to the failure of the connection. That particular member is marked and the routing of the requests continues till the availability of the original cluster work.
The applications in WebSphere get deployed in three ways. These are as follows - Hot deployment - hot deployment includes the copying of the application file simply to the application directory. However, this process is not recommended for production purposes and is suitable for non-production purposes and the environment.
The files like WAR (WebSphere application server) and EAR are mainly used to deploy the applications into the WebSphere tool. Other files like SAR or JAR can also be used to deploy applications through the DMGR process.
The existing and running applications don't really get affected if the DMGR process remains down or doesn't work perfectly. However, the deployment of applications does get affected if DMGR doesn't work.
Developers and engineers mainly use this information record known as a trace. These are complex in nature and are found in a detailed way.
The following are the definitions -
The dynamic cache is the one that helps in the improvement of the performance produced by the caching of the various output of applications. The objects to be cached are intercepted within the cells with the help of the Dynamic cache service. Then the content is provided by it or is stored.
The cluster in the WebSphere is partitioned dynamically and only one cluster can run at a specific allotted time. This is how asymmetrical clustering works. A particular task can be allotted to a particular cluster.
The WebSphere application server or also known as the WAS provided by IBM is considered to be able to store all Thebes data and information regarding the configuration process. It stores them in the repository provided by nodes which are known as the Master Repository. In order for the entire configuration to be stored or simply send to the server of the respective nodes while using the DMGR process, the nodes must be synced properly. It is basically communication between the master repository and the local repository and can be done only in one way.
Ripple start is the process used for restarting the cluster of the WebSphere administration servers. The JVM is at first stopped by it and then again started with the help of Ripple Start. However, only one JVM can be restarted at a single time. Like for example, if in a cluster a total of 5 JVMs are present and if Ripple Start is used, it will first close the first JVM and then again restart it. In this way, it will be consecutively closing and restarting one JVM after another.
Virtual hosts are considered to be the ones that consist of various kinds of URLs like FQDN and IP. These are all present in a single application. The configuration of the same is also done with the WebSphere application server. The application must be included in an URL and this is known as the virtual host. Hence, this application remains associated with its URL in the virtual host.
The applications can be slow due to various different reasons. It is important to know the root cause of this. Some components of WebSphere or some external components can be responsible for this. The following can be kept in mind in order to improve the problem,
When the group of nodes is put or found in the single domain of WebSphere administration then it is known as the cell. Various nodes can be present in the cell and all these are managed from a particular proper point of access.
WAS gets in touch with the registry when -
Communication between users with the help of messages is done with the help of WebSphere MQ. This is basically a type of application program. Mainly commercial communication or messaging is done by WebSphere MQ. The communication through application by this can be done in two ways - Fire and Forget and Request and Response.
In WebSphere, deployments are extended due to the purpose of increasing the service quality. This gets increased with the help of the optimization of the IT resources. It works in three main areas as follows -
The programming APIs of WebSphere MQ are as follows -
Generally, the proxy is cached in the forward direction and is hence configured in this particular direction. On request of particular content by users, the WebSphere edge first caches it and then sends it according to their requests. Page fragments of applications are also cached by WebSphere edge and when this process becomes slow then it gets optimized by the Websphere edge server.
For the communication of the data which are encrypted, between various processes, a certain protocol is used and this is known as SSL.
General, two types of the cluster are done. The horizontal cluster refers to the cluster which can be done between a huge number of multiple nodes and all the servers found in the cell. On the other hand, the vertical cluster is mainly done between the members I'd the same bode and server.
The connecting pool is basically the cache of various connections of the database and is maintained in such a way that can be used again in the near future. Such requests for database caching are very frequent and common in WebSphere. However, when all the connections get occupied then a whole new connection is made and gets automatically added to the pool.
Web logic includes various attributes which are default transactions like for example supports. However, WebSphere doesn't include any such type of default transaction. The focus on creativity and integration is mainly done by WebSphere. Web services are also maintained peppy by it. Hence, the performance by WebSphere is much nicer and better than that of web logic. In fact, integration and the management of transactions are also better than web logic.
The MQ client often has a particular name that distinguishes it from any other client and this is known as SSLPEER. This gets linked to the queue manager and is used for the identification of clients.
Queue Manager refers to as the most important component or feature of the WebSphere MQ. The messages between the two Queue Managers get stored within the MQ and communication with the rest of the outside world is also possible.
Ripplestart - It can be used for Stopping and Starting the instances of a cluster at a time. Simply it's a combo of two distinct operations i.e., start and stop. First, it stops and then restarts each instance of the cluster. Once you click on the Ripplestart, tx1 stops after then turn on again, following by tx2 stops after then turns on again, & then finally tx3 stops reboots. Rather than considering a manual approach, Ripplestart is considered here. Actually, all the applications within the cluster can easily be stopped, and whenever the need for the same is felt.
It is basically a powerful tool that is actually an initiative of IBM. The primary purpose is to simply create and manage the websites in a reliable manner. When it comes to building web applications that are scalable, this tool can simply be used. The good thing is that almost all the functions related to a business can easily be supported by it. Even if the data belongs to Operating Systems which are different in nature, it is possible to combine the same with the help of this tool.
Mostly there are 5 WebSphere Components: Generic servers, WAS, Web Server, and Data Server.
WebSphere’s server plugin element routes all requests to WebSphere’sweb containers. Whenever there is any communication failure within a specific member of the cluster, it mark’s the member down & starts routing all the requests to other clusters until the primary is available.
The administrator must generate the profile with services enabled before starting the wizard, & point to the profile while working on the migration.
IBM Installation Manager V8 New Capabilities:
The business owner can now execute complex operations based on “what if “scenarios, followed by analyzing and creating reports from the simulated results to detect the problem areas in the processes. Advanced Edition of WebSphere offers all the capabilities of the Initial Edition apart from Advanced Edition which also provides a “jump-start” to any development of the application by enabling more focused users, like IT architects, to export the models to UML, or other FDL models, for further development.
WebSphere Business Edition Version 5.1 is a cost-effective option for businesspersons looking for simple models, documents, and print their business transactions &processes.
Weblogic maintains attributes in order to support default transactions, whereas Websphere would not have such kind of default transactional attributes.
Websphere is more focused on integration, connectivity, and web services. It performs better in the implementation of J2EE, and in extensive integration and management of transactions as compared to Weblogic.
In two way we can install the IBM Websphere application:
Websphere MQ programming APIs include
WebSphere Edge is a group of web application server components that are supposed to improve the productivity of web-based information systems and is an integral part of the IBM WebSphere product suite. It comprises 4 basic components:
Edge is configured for high availability with a backup of Edge failover server which makes over sessions in case the primary Edge server fails.
Caching proxies are configured as an explicit proxy or in a forward direction. When any user requests for the content, and it will be cached by the edge server previously sending or following the query. Edge server caches page fragments that generate from JSP or Servlets and the process of Caching becomes slow. Edge will optimize the Scalability & Performance.
Extended deployment in WebSphere provides advantageous qualities of service with optimizing features. It covers three areas
WebSphere MQ is a program that allows us to communicate with each other using queues&messages. Communication in this form is known as commercial messaging. There are two methods of communication amongst the application,
queue manager is an important element of WebSphere MQ. It is responsible for routing &storing messages to all other queue managers within the MQ and communicates with the outside world too.
Applications need a minimum amount of memory to reach a stable state, which occurs when the heap is no longer growing consistently. If the JVM is configured with a maximum heap, which is too small, it will never permit the JVM to reach the stable state, which will make allocation failures and the JVM will initiate to throw OutOfMemoryError.
The CHANNEL attribute along with WebSphere MQ applications is used to specify the receiving and sending messages in a file, which defines sender & receiver channels. Channel can be considered as a link that basically connects a receiver with a sender. It is actually a channel that is responsible for data transferring. There are some set of rules that governs the control over it and it is not always necessary that the capacity of all the channels in WebSphere is the same.
WebSphere Virtual Enterprise increases the flexibility and alertness to ensure the integrity of the business process, &improve the service, help to manage the health, and application performance.
WebSphere Virtual Enterprise offers the virtualization capabilities of application infrastructure, which lower the overall amount for the production, management, and operate enterprise applications in a reliable manner.
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