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?

  • A

    m1: HTTP m2: SMTP m3: POP

  • B

    m1: SMTP m2: FTP m3: HTTP

  • C

    m1: SMTP m2: POP m3: HTTP

  • D

    m1: POP m2: SMTP m3: IMAP

Question 2

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

  • A

    Error detection and correction

  • B

    Routing of packets

  • C

    Providing network services to end users

  • D

    Establishing physical connections

Question 3

What additional feature does HTTPS provide compared to HTTP?

  • A

    Compression

  • B

    Encryption and authentication using SSL/TLS

  • C

    Faster data transfer using UDP

  • D

    Multicast support

Question 4

Which of the following is a key characteristic of TFTP?

  • A

    Uses TCP for transmission

  • B

    Supports authentication and encryption

  • C

    Simpler and faster than FTP, uses UDP

  • D

    Requires user credentials before file transfer

Question 5

What does the term "internetworking" primarily refer to?

  • A

    Connecting devices within a single LAN

  • B

    Connecting multiple networks together

  • C

    Sharing files between two computers

  • D

    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 ?
  • A
    POP3
  • B
    IMAP
  • C
    SMTP
  • D
    DMSP

Question 7

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

  • A

    A

  • B

    B

  • C

    C

  • D

    D

Question 8

The protocol data unit (PDU) for the application layer in the Internet stack is
  • A
    Segment
  • B
    Datagram
  • C
    Message
  • D
    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

  • A

    SMTP, HTTPS, IMAP

  • B

    SMTP, POP, IMAP

  • C

    SMTP, IMAP, HTTPS

  • D

    SMTP, IMAP, POP

Question 10

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

There are 15 questions to complete.

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