L05
Web, file, print and storage services
Cram this first — memory hook
Web serves pages; file service serves files; print service queues jobs; Network Attached Storage is the storage appliance.
Exam trap
also means Network Access Server in authentication contexts. Use the surrounding subject to interpret the abbreviation.
The slide facts
The overview distinguishes web pages, file transfers, shared files/printers and network storage. Modern Server Message Block uses Transmission Control Protocol 445; legacy over NetBIOS uses 139.
If you have time — extra
A web server responds to browser requests, a file server provides shared files, and a print service coordinates access to printers or print queues. Hypertext Transfer Protocol () commonly uses Transmission Control Protocol () 80; Hypertext Transfer Protocol Secure commonly uses 443 with Transport Layer Security (). messages include headers describing the request/response and often a body carrying content; Hypertext Markup Language () is one type of web content. Hosting may be dedicated, shared, virtual or cloud-based: those are deployment choices, not different meanings of . Server Message Block () supports shared files and printers. A Network Attached Storage () appliance is a storage device connected to the network; it can offer services such as rather than having one universal port. version 3 supports encryption, but actual protection depends on configuration. Dedicated printing protocols are supplemental to this deck's -focused print coverage.
Walkthrough
A learner opens a shared folder; the client contacts the file-sharing service, authenticates, receives authorization, and reads permitted files. A printer share can similarly accept and queue a job. The same server may host several independent services.