Application Layer Questions & Answers

Computer Networks Questions & Answers – Application Layer

This set of Computer Networks Multiple Choice Questions & Answers (MCQs) focuses on “Application Layer

1. E-mail is _________
a) Loss-tolerant application
b) Bandwidth-sensitive application
c) Elastic application
d) None of the mentioned

Explanation: Because it is able to work with the current throughput.

2. Pick the odd one out.
a) File transfer
b) File download
c) E-mail
d) Interactive games

Explanation: The application layer provides services such as file transfer, file download, and email, which are both message and data oriented.

3. Which of the following is an application layer service?
a) Network virtual terminal
b) File transfer, access, and management
c) Mail service
d) All of the mentioned

Explanation: Network virtual terminal, file transfer, access and management, mail services, directory services, and numerous file and data operations are all services offered by the application layer.

4. To deliver a message to the correct application program running on a host, the _______ address must be consulted.
a) IP
b) MAC
c) Port
d) None of the mentioned

Explanation: The IP address identifies the network’s location. A MAC address, on the other hand, is a unique address for each device. A process or service that you want to continue is identified by its port address.

5. Which is a time-sensitive service?
a) File transfer
b) File download
c) E-mail
d) Internet telephony

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

6. Transport services available to applications in one or another form _________
a) Reliable data transfer
b) Timing
c) Security
d) All of the mentioned

Explanation: Reliable data transfer, security, and timing are among the transport services supplied to applications. These are critical for providing effective end-to-end services.

7. Electronic mail uses which Application layer protocol?
c) FTP
d) SIP

Explanation: SMTP, IMAP, and POP are some of the protocols used in email. SMTP is the most often utilised in the application layer.

8. Which is not a application layer protocol?
c) FTP
d) TCP

Explanation: TCP is transport layer protocol.

9. The packet of information at the application layer is called __________
a) Packet
b) Message
c) Segment
d) Frame

Explanation: There is no message data format for the Application, Presentation, or Session layers. In these three tiers, the message is the message. However, data is stored in segments, packets, frames, and bits at the Transport, Network, Data, and Physical layers, respectively.

10. Which one of the following is an architecture paradigms?
a) Peer to peer
b) Client-server
d) Both Peer-to-Peer & Client-Server

Explanation: HTTP is a protocol.

11. Application developer has permission to decide the following on transport layer side
a) Transport layer protocol
b) Maximum buffer size
c) Both Transport layer protocol and Maximum buffer size
d) None of the mentioned

Explanation: The interface between applications and the network is provided by the application layer. As a result, the application developer can choose which transport layer to utilise and what the maximum buffer size should be.

12. Application layer offers _______ service.
a) End to end
b) Process to process
c) Both End to end and Process to process
d) None of the mentioned

Explanation: The application layer provides end-to-end service. Process-to-process service is supplied at the transport layer, whereas process-to-process service is supplied at the application layer.

A communications network’s application layer is an abstraction layer that provides the shared communications protocols and interface methods utilised by hosts. The application layer abstraction is utilised in both the Internet Protocol Suite (TCP/IP) and the Open Systems Interface (OSI) models of computer networking. Despite the fact that both models use the same word for their highest-level layer, the definitions and purposes are different. The application layer contains the communications protocols and interface methods used in process-to-process communications across an Internet Protocol (IP) computer network in the Internet protocol suite.

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