Answer: Application layer
Explanation:
Application layer of OSI(Open system interconnection) that is responsible for interfacing the communication with the user by displaying information or message. It maintains the transmission of file and assessment, emailing faculty, using network services etc.
- According to the question,if any Skype user has complain regarding video call drop while conferencing then application is responsible to solve the issue.
- This layer will be the starting point of troubleshoot by approaching to network resources.As call drop can occur due to network service, congestion or resource issue.
Answer: D. Searches for a file only in the directories that are in the path variable
What class Is this 4 ? I think we have some thing similar
Built in and user defined
Ans : Extention
In windows, a(n) extension follows the file name and a period and indicates the file type.
