Application Layer Protocols Quiz
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Application Layer Protocols Quiz

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Questions and Answers

Which of the following are NOT Application layer protocols? (More than one protocol applies)

  • DHCP (Dynamic Host Configuration Protocol)
  • ICMP (Internet Control Message Protocol) (correct)
  • UDP (User Datagram Protocol) (correct)
  • IP (Internet Protocol) v6 (correct)
  • ARP (Address Resolution Protocol) (correct)
  • TCP (Transmission Control Protocol) (correct)

    • Which one of the following is a function of the Application layer?

  • Routes packets through an internetwork.
  • Data formatting and translation. (correct)
  • Provides frame error detection in the form of a CRC (Cyclic Redundancy Check) code.
  • Protects data with a checksum.

    • Which one of the following statements regarding e-mail protocols is NOT TRUE?

  • POP3 uses TCP (Transmission Control Protocol) port 121. (correct)
  • IMAP4 uses TCP port 143.
  • E-mail clients use POP3 (Post Office Protocol version 3) to download incoming messages from an e-mail server to their local desktops.
  • IMAP4 (Internet Message Access Protocol version 4) has the capability to manage messages locally yet store them on a server.

    • Which protocol uses TCP (Transmission Control Protocol) port 21 for sending control commands?

    <p>FTP (File Transfer Protocol)</p> Signup and view all the answers

    ________ is an Application-layer protocol used to monitor and manage network devices, and operates on ________ ports, ________ and ________.

    <p>SNMP (Simple Network Management Protocol), UDP (User Datagram Protocol), 161 and 162</p> Signup and view all the answers

    The first packet in the four-packet exchange between a DHCP (Dynamic Host Configuration Protocol) client and server is the DHCPRequest.

    <p>False</p> Signup and view all the answers

    Which part of the address www.marketing.localdomain.org is the top-level domain name?

    <p>org</p> Signup and view all the answers

    What does the SRV (Service) record do in a DNS (Domain Name System) zone?

    <p>Allows DNS clients to request the address of a server that provides a specific service instead of querying the server by name.</p> Signup and view all the answers

    Where does a DNS (Domain Name System) server look when it cannot resolve a query from its zone records or cache?

    <p>Root hints</p> Signup and view all the answers

    Which statements regarding IPv4 (Internet Protocol version 4) or IP are INCORRECT? (More than one statement applies)

    <p>IP is a Network access-layer protocol.</p> Signup and view all the answers

    Study Notes

    Application Layer Protocols

    • ICMP (Internet Control Message Protocol), TCP (Transmission Control Protocol), UDP (User Datagram Protocol), ARP (Address Resolution Protocol) and IP (Internet Protocol) v6 are NOT Application Layer protocols.
    • The function of the Application layer is data formatting and translation.
    • POP3 (Post Office Protocol version 3) is not on TCP port 121.

    Email Protocols

    • POP3 (Post Office Protocol version 3) is used to download incoming e-mails from a server to a local desktop.
    • IMAP4 (Internet Message Access Protocol version 4) allows users to manage emails locally and store them on a server.
    • SMTP (Simple Mail Transfer Protocol) is used to send emails.
    • SMTP uses TCP port 25.
    • IMAP4 uses TCP port 143.

    FTP Protocol

    • FTP (File Transfer Protocol) uses TCP port 21 for sending control commands.

    SNMP Protocol

    • SNMP (Simple Network Management Protocol) uses UDP (User Datagram Protocol) and ports 161 and 162 to manage network devices.

    DHCP Protocol

    • The first message a DHCP client sends to a DHCP server is not a DHCPRequest, the first message is DHCPDiscover.

    Domain Name System (DNS)

    • DNS (Domain Name System) uses SRV (Service) records to allow clients to request the address of a server that provides a specific service.
    • The top-level domain name in www.marketing.localdomain.org is org.
    • When a DNS server cannot resolve queries from its zone records, it looks for the answer in root hints.

    Internet Protocol (IP)

    • IP (Internet Protocol) is not a Network Access Layer Protocol, it is a Network Layer Protocol.

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    Related Documents

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    Description

    Test your knowledge on various application layer protocols such as POP3, IMAP4, and SMTP. This quiz covers their functions, port numbers, and uses in managing emails and file transfers. Explore how these protocols help in data formatting and communication over the internet.

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