Mumbai University > Information Technology > Sem4 > Computer Networks

Marks: 5M

Year: May 18

1. A problem at the application layer can result in unreachable or unusable resources when the physical, data link, network, and transport layers are functional.

   1. It is possible to have full network connectivity, but the application simply cannot provide data.

   2. Another type of problem at the application layer occurs when the physical, data link, network, and transport layers are functional, but the data transfer and requests for network services from a single network service or application do not meet the normal expectations of a user.

   3. A problem at the application layer may cause users to complain that the network or the particular application that they are working with is sluggish or slower than usual when transferring data or requesting network services.