<span>Crawler-based search engines are what most of us are familiar with - mainly because that's what Google and Bing are. These companies develop their own software that enables them to build and maintain searchable databases of web pages (the engine), and to organise those pages into the most valuable and pertinent way to the user.</span>
The answer that fills in the blank is orientation. It is because orientation does not provide all the details of what they are doing but a guideline of what they must do, in order for them to be guided on the things that they need to learn as they start. They require proper guidance which is the orientation before performing before hand. Especially when they are not familiar on what they need to do.
Answer:Active Directory-integrated
Explanation: Active Directory-integrated is the service that is introduced by the Microsoft .This service provides the directory form for functioning in Windows. It serves the purpose of active directory(AD) transferring to the Dynamic web database. Whenever the user gets connected to any website, it provides validation to qualifications . So, it does not get support the specification when there is working of DNS.
