Application Layer

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Question 1

Consider different activities related to email: 

m1: Send an email from a mail client to a mail server
m2: Download an email from mailbox server to a mail client
m3: Checking email in a web browser

Which is the application level protocol used in each activity?

  • m1: HTTP m2: SMTP m3: POP

  • m1: SMTP m2: FTP m3: HTTP

  • m1: SMTP m2: POP m3: HTTP

  • m1: POP m2: SMTP m3: IMAP

Question 2

Which of the following is the main function of the Application Layer in the OSI model?

  • Error detection and correction

  • Routing of packets

  • Providing network services to end users

  • Establishing physical connections

Question 3

What additional feature does HTTPS provide compared to HTTP?

  • Compression

  • Encryption and authentication using SSL/TLS

  • Faster data transfer using UDP

  • Multicast support

Question 4

Which of the following is a key characteristic of TFTP?

  • Uses TCP for transmission

  • Supports authentication and encryption

  • Simpler and faster than FTP, uses UDP

  • Requires user credentials before file transfer

Question 5

What does the term "internetworking" primarily refer to?

  • Connecting devices within a single LAN

  • Connecting multiple networks together

  • Sharing files between two computers

  • Establishing wireless communication

Question 6

Which of the following protocols is used by email server to maintain a central repository that can be accessed from any machine ?
  • POP3
  • IMAP
  • SMTP
  • DMSP

Question 7

What is the maximum size of data that the application layer can pass on to the TCP layer below?

  • A

  • B

  • C

  • D

Question 8

The protocol data unit (PDU) for the application layer in the Internet stack is
  • Segment
  • Datagram
  • Message
  • Frame

Question 9

Consider the set of activities related to e-mail A : Send an e-mail from a mail client to mail server B : Download e-mail headers from mail box and retrieve mails from server to a cache C : Checking e-mail through a web browser The application level protocol used for each activity in the same sequence is

  • SMTP, HTTPS, IMAP

  • SMTP, POP, IMAP

  • SMTP, IMAP, HTTPS

  • SMTP, IMAP, POP

Question 10

Which of the following protocols is an application layer protocol that establishes, manages and terminates multimedia sessions ?
  • Session Maintenance Protocol
  • Real - time Streaming Protocol
  • Real - time Transport Control Protocol
  • Session Initiation Protocol

There are 15 questions to complete.

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