computer network

Microsoft Word - Appilcation layer.docx
SIT716 Computer Networks and Security
Pass Task 6.1P
Weeks 5-6: Application Layer
Part 1. Specific Questions
a.

Accept - The Accept request HTTP header specifies the MIME content types that the client can understand.
Accept-Encoding - The Accept-Encoding request HTTP header specifies the content encoding (usually a compression algorithm) that the client can understand.
Keep-Alive - The generic keep-alive header allows senders to indicate how a connection can be used to set time limits and maximum number of requests.
Upgrade-Insecure-Requests - The HTTP request header "Upgrade-Insecure-
Requests" tells the server the client's choice for encrypted and authenticated responses and the fact that the server can use her CSP directive "Upgrade-to" I'll announce it. Handle insecure requests.
User-Agent - HTTP's header (a request header called User-Agent) contains a unique string that allows network protocol peers to recognize a web server's operating system and browser.
b.
Cache-control - Use an HTTP header called Cache-Control to specify browser cache settings in both client requests and server responses. A policy specifies how, where, and how long a resource is cached before it expires (that is, its lifetime).
Content-Type - The media type of the resource is identified by the Content-Type header. A media type that identifies the format of a file is a string sent with the file. For example, for image files, the media type could be image/png, image/jpg, and so on. In response, he informs the client of the nature of the returned material.
Date - The message origination time and date is specified in the generic HTTP Date header.
Expires - The date and time when the response is considered expired is specified in the Expires HTTP header. The expiration of the resource is indicated by an invalid expiration...