0 — Test 383

Correct Answer: B. B. Message
Explanation: For Application, Presentation and Session layers there is no data format for message. Message is message as such in these three layers. But when it comes to Transport, Network, Data and Physical layer they have data in format of segments, packets, frames and bits respectively.

Correct Answer: D. D. Both peer-to-peer & client-server
Explanation: HTTP is a protocol.

Correct Answer: C. C. Both transport layer protocol and maximum buffer size
Explanation: Application layer provides the interface between applications and the network. So application developer can decide what transport layer to use and what should be its maximum buffer size.

Correct Answer: A. A. End to end
Explanation: End to End service is provided in the application layer. Whereas process to process service is provided at the transport layer.

Correct Answer: C. C. Elastic application
Explanation: Because it can work with available throughput.

Correct Answer: C. C. Port
Explanation: IP address lets you know where the network is located. Whereas MAC address is a unique address for every device. Port address identifies a process or service you want to carry on.

Correct Answer: D. D. Internet telephony
Explanation: Internet telephony is Loss-tolerant other applications are not.

Correct Answer: D. D. All of the mentioned
Explanation: The transport services that are provided to application are reliable data transfer, security and timing. These are very important for proper end to end services.

Correct Answer: A. A. SMTP
Explanation: Email uses various protocols like SMTP, IMAP and POP. The most prominent one used in application layer is SMTP.

Correct Answer: A. A. Domain name system
Explanation: Domain name system is the way the internet domain names are stored and translated to IP addresses. The domain names systems matches the name of website to ip addresses of the website.