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It is basically a server with the help of which the users can simply make sure of accessing the resources through the name of the nodes in the network than using the IP. It can be configured in the system for keeping a track record of IP addresses and node names.
When it comes to network security and administration, something that largely matters is nothing but the centralized control of everything. The same can easily be assured through the Active Directory. The nodes which are associated with the server are generally configured with the Active Directory. Generally, they act as controllers for all the domains concerned with the network.
All the settings and the information related to the development are generally stored in the central database. The Directory makes sure that the administrators enable the deployment and policies. Depending upon the nature of the task, it is also responsible for the other tasks that are related to the operating system.
APIPA means Automatic Private IP Addressing. IT enables users to locate IP addresses when the DHCP servers fail to perform their tasks.
It is also known as a network domain controller and is basically a computer system that is often based on Windows. All the data and the information that is related to the user account are stored on a central database with the Domain controller.
It is also regarded as the central unit for the Active Directory in Windows. It is mainly responsible for matching the authentication details and making sure that the security policies are not getting violated.
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These are HTTP, SMTP, IMAP4, POP3, Secure POP3, and Secure IMAP
This is generally done through the Domain controller. Generally, the users who have the access to the information are given a unique ID and a password.
It is basically an approach that is helpful for enabling users to adopt modern techniques over the traditional infrastructure. It stands for Short for Voice over Internet Protocol which is basically a special type of software and hardware with the help of which users can clearly use the transmission medium which is designed for the telephone calls by delivering the voice packets.
A GPO is nothing but an array of settings that is responsible for assuring the proper control of the working environment of a user, as well as nodes account. There are policies that are important and GPO’s are responsible for the implementation of the same.
In addition to this, a GPO performs another important task and i.e. it redirects the folder options. Generally, the GPOs are of two types and they are Local and Non Local Group.
Basically, it’s nothing but the logical group of network objects that generally include users, computers, as well as devices among which the Active Directory database is pretty common. In a tree that generally defines how the nodes are connected, there can be multiple domains and each is responsible for the functioning of a specific one.
At this location, the Ad database is stored.
This Folder is responsible for storing enabling the users to have common access to a domain. Basically, the copy of the server of the domain files is stored in this folder. The users can add more files to it to enhance the accessibility of the domain. There are AD databases that can also be stored in this folder.
This Folder can be created if the system Administrator follows the NTFS partition.
It is useful when it comes to deploying the Systems which run on Windows remotely. It is mainly used for network-based Operating system installation. This is to make sure that the new nodes can be added to the existing network in a reliable manner.
This service lets the users make remote access to the nodes within the network simply and if they are allowed the same.
The incoming mail server is one that is responsible for managing the e-mail account and the information associated. In any registered e-mail account, no more than one server can be linked or associated. Generally, it helps users in downloading their attachments from the email accounts provided the settings configured are correct. The other Server i.e. the Outgoing Mail Server is the one that is based on the Simple Mail Transfer Protocol and is responsible for the delivery of e-mails.
The Light-Weight Directory Access Protocol is responsible for the naming of the objects which are under the Active Directory. It is basically the industry standard directory access protocol. Its main aim is to enhance the reachability of the Active Directory.
The implementation of the specific configurations is implemented for the nodes as well as for the users through the Group Policy. There are GPO’s (Group Policy Objects) which contain the settings of the group policy. They are generally made linked to the sites, unites, or with the domains directly.
While performing tasks, there is often a need to erase or delete the Active Directory from the system. A deleted or an erased Active Directory file can be considered as a Lingering object. They are called Lingering because of their presence when the same is on the Domain Controller.
After creating the system backups, there are changes on the directories and the same is responsible for the creation of the same. There is actually a limit on the backup file and i.e. it should be older than 180 days. All those are older than this, get deleted automatically, and are called Lingering objects.
They can be removed easily through the command REPADMIN.EXE. It is basically a console utility command. In case the Lingering objects are not deleted, they can put an extra burden on the system’s Random Access Memory and can create problems such as limited space availability and slow performance.
It is important mainly due to the proper functionality of the Active Directory Database. Without creating the backup, the system cannot let you work on the older modules and users cannot keep up the pace simply with the registered domains that are essential for performing several important tasks. In case the backup is not created, the troubleshooting process is to be adopted by the users.
The Forests are nothing but the dynamic collection of the trees with a catalog that is common to all of them. Generally, a forest defines the security policies that bind all the users and computers on a network.
Something that is very important about the hardware components is their proper installation, maintenance, as well as replacement. They are actually the essential operations that the users have to perform with the hardware. The most critical one could be the replacement or building of a component.
Well, one thing which is common among all the tasks performed by a system administrator is problem-solving. Thus, he/she should be good in the same and this is one of the essential skills of a system admin.
A System Administrator should know who to handle the operations related to hardware. He/she must also be good with the software domain. Although they have to work individually, they must know what and when to discuss with others. Gathering information, problem formulation, troubleshooting, and managing technical problems are some of the other important characteristics that an expert should have.
Upgrading the systems and reducing the downtime of the servers is also their responsibility. Because they have to take several important decisions quickly, so good decision-making ability is another prime characteristic they must bear.
FAT is basically an old approach and is a file system that was common with the older versions of Windows. It has a limit on the memory and users are not in a position to run files that are heavy and of HD quality. Therefore it doesn’t have a wide scope in the present scenario. On the other side, NTFS is common these days.
The best thing about the same is it enables users to have a better command over the files due to better security policies when compared with the FAT. Some of the key features that make it simply the best are Shadowing, Quotas as well as Troubleshooting.
Well, they both have a similar objective and i.e. to enhance the overall security of the network. The antivirus obviously keeps a system safe from computer viruses. It simply reports, erase, and notifies the users to aim case of an infected file enter the system memory and always makes sure that the system data remains safe.
On the other side, a firewall is an approach or a program that simply doesn’t let hackers and intruders steal information from a system. The firewall approach simply doesn’t let the hackers govern the control of the system partially or fully. Whereas the antivirus is only available as software, the Firewall is available in both hardware as well as software form.
It is basically an approach that simply enables users to send the signal again to the same node for the purpose of testing. It simply makes sure that packets are delivering at the right destination and the chances of loss of data can be reduced. It is actually the simplest method of testing and is always beneficial for the data transferring among the system when the size of the data is too complex.
It is a gateway node between a local area network and a wide area network. IT simply makes sure of better security as well as the enhanced performance of the network under all the situations. They can also be deployed for the purpose of keeping an eye on the employees like how much they have considered the resources which are outside the organization.
It is beneficial for configuring the settings of Microsoft Windows and is basically an array of Databases.
The Ethernet card is responsible for the smooth flow of everything. It basically connects everything together. Without it, the concept of switching which is very important cannot be applied and considered.
They are connected to layer number 3.
ATG is a framework that helps in making web applications based on J2EE standards and is from the Art Technology Group. A repository is basically a huge pool of data that can be accessed anywhere anytime. These data can be accessed and manipulated through the repository API. Web application developers can modify these data using the interface. They can remove the items too. Articles in repositories are more or less like Java Bean. ATG Platform provides a set of models for repositories.
The nucleus is the term used to denote the ATG holder for segments. It gives various leveled namespace to par having an exclusive full name with the goal that pages and different segments can refer to it. They are basically individual Java Bean components accumulated together.
These Java Bean components are connected with .properties files within the Nucleus. In the nucleus, each service is put together as a Java Bean or a group of Java Beans. These are then put on a namespace. The beans interconnect within themselves. The nucleus is in charge to understand the component configurations and manage the namespace.
ATG component Scope is basically a core variable, which informs the nucleus at the point when a part will exist.
$ Signs is used to process the core properties.
JSPs in ATG is created through the following method:
This is the method for creating a JSP page in any ATG application.
Servlet is a java class whereas Droplet is from ATG
These are the 2 methods of component: setters & getters. These components help the setter to keep their data private while exposing their article to any public repositories.
Item descriptor can be detailed with the help of SQL Repository. For example, each database table has a unique repository item descriptor. Sometimes multiple tables are joined into a single item descriptor. Since ATG supports Java collections, hence we can store a list, map, or arrays. ATG repositories allow one-by-one, one-many, many-many relationships.
In ATG it’s very simple as we need to use the ShoppingCartFormHandler, available amongst form handlers.
Basically, ShoppingCartFormHandler & CartModifierFormHandler are the two main form handler that is being used while making a shopping cart.
ATG Dynamo personalization system is abbreviated as ATG DPS. It’s works on the basis of the user’s Profile Data and the rules have been fabricated to deliver the right content as per the request of the user. There are basically three key elements are associated with ATG DPS which are as follows:
The extent of Dynamo Components are as follows:-
Scenario predicts and tracks the activities of the website visitors and acts accordingly, e.g., customizing the content of the page visited and offering exclusive promotions on offer, or sending targeted messages through an e-mail.
It’s simply a variant of Servlet Pipeline. In an ATG pipeline, the order of Programs is implemented in a sequence. It initiates with the DynamoHandler which adds the definitive dynamo request and responds accordingly. The lists of servlets seen are dependent on the module being used. This is how the Dynamo Application Server adds more servlets to its pipeline.
Dynamo Application Server (DAS) is generally used to manage a high volume of traffic.
As we all know that issues come in all shapes and sizes, which means that the performance of the task is not going as expected, which was previously observed to be functioning smoothly. Issues include CPU utilization, sluggish responses, database activity of high levels, long-running SQL queries, slow CA deployments are some of few.
The component available as Eclipse IDE is of huge utility in ATG.
IBM’s Web Sphere Application Server is of great use to enhance the performance of ATG. Apart from Eclipse IDE, which is an open-source platform used for developing web applications
Derived properties mean enabling extracting the property value from one repository article to another repository article or from another property to the same repository article.
For a description of each article in the repository, an SQL repository manages two caches: Item Cache & Query Cache
a) Item caches preserve the values of repository items, which are indexed by the respective repository IDs. Item caching facilitates each & every single item descriptor.
b) Query caches preserve the repository IDs of articles that match the given queries. As soon as the query returns the repository articles in response, the item descriptor enables query caching and as a result, the set is cached as follows:
If any such situation arises when the ATG applications have to be installed on a cluster of servers, then it is preferred to select from either distributed caching or locked caching.
The various approaches to Caching are set at the item descriptor stage, through the tag’s cache-mode attribute. The default caching mode is simple caching. To modify the default caching mode on an item descriptor, we can set cache-mode to any one of the following values:
HandleX technique contains the definite function to be performed which is a method, just like ProfileFormHandler- handle login
Price Lists allow any developer to aim for a specific range of prices for a specific group of consumers. Price lists are managed through a single interface in ACC. For e.g., price lists can be used to execute B2B pricing where each client can have their own unique pricing for products based on contracts at negotiated prices and can be changed as & when required too.
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