OSI Reference Model – Practice Test

27 Questions | Total Attempts: 4846

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OSI Reference Model  Practice Test - Quiz

By IMS Asia (https://www. Imsasia. Com)


Questions and Answers
  • 1. 
    The OSI reference model is a seven-layer reference model that originated from the
    • A. 

      ISO standards committee

    • B. 

      ITU standards committee

    • C. 

      IEEE standards committee

    • D. 

      ANSI standards committee

  • 2. 
    What are the seven-layers of the OSI reference model?
    • A. 

      Application, presentation, dialog, transport, network, datalink, bit

    • B. 

      Application, data format, dialog, transport, network,datalink, bit

    • C. 

      Application, data format, dialog, end-to-end connection, network, datalink, bit

    • D. 

      Application, presentation, session, transport, network, data link, physical

  • 3. 
    What is the function of the Application Layer as described by the OSI reference model?
    • A. 

      Provides network services to user applications

    • B. 

      Provides desktop connectivity to the LAN

    • C. 

      Provides desktop connectivity to the WAN

    • D. 

      None of the above

  • 4. 
    Data is referred to as _________ at the Application Layer?
    • A. 

      Data

    • B. 

      Packets

    • C. 

      Segments

    • D. 

      Bits

    • E. 

      Frames

  • 5. 
    What are some of the common standards that are implemented at the Application Layer?
    • A. 

      SMTP, TELNET, FTP, CMIP

    • B. 

      NetBIOS, LAT, DDP, SNA

    • C. 

      IP, IPX, DDP

    • D. 

      SDLC, LAT, NETBIOS

  • 6. 
    What is the function of the Presentation Layer, as described by the OSI reference model?
    • A. 

      Provides data representation and format to the Application Layer

    • B. 

      Provides presentation services to the Presentation Layer.

    • C. 

      Converts application data to binary.

    • D. 

      Converts application data to EBCDIC.

  • 7. 
    What are some of the common standards that are implemented at the Presentation Layer?
    • A. 

      TFTP, SMTP, SNMP, TELNET

    • B. 

      NetBIOS, LAT, DDP, SNA

    • C. 

      JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP

    • D. 

      SDLC, LAT, NETBIOS

  • 8. 
    What is the function of the Session Layer, as described by the OSI reference model?
    • A. 

      Conversation steering

    • B. 

      Conversation steering in half-duplex mode

    • C. 

      Establishes, maintains and manages sessions between applications

    • D. 

      Conversation negotiations

  • 9. 
    What are some of the common standards that are implemented at the Session Layer?
    • A. 

      TFTP, SMTP, SNMP, TELNET

    • B. 

      NetBIOS names, SNA Session, NFS, Xwindows, RPC, SQL

    • C. 

      JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP

    • D. 

      SDLC, LAT, NETBIOS

  • 10. 
    What is the function of the Transport Layer, as described by the OSI reference model?
    • A. 

      Management of streaming data

    • B. 

      Segments and reassembles data into a data stream

    • C. 

      Always guarantees delivery

    • D. 

      Never guarantees delivery

  • 11. 
    Data is referred to as _________ at the Transport Layer?
    • A. 

      Data

    • B. 

      Packets

    • C. 

      Segments

    • D. 

      Bits

    • E. 

      Frames

  • 12. 
    What are some of the common standards that are implemented at the Transport Layer?
    • A. 

      TFTP, SMTP, SNMP, TELNET

    • B. 

      NetBIOS names, SNA Session, NFS, Xwindows, RPC, SQL

    • C. 

      JPEG, PIC, MPEG, QTIME, ASN.1, SMB, NCP

    • D. 

      TCP, UDP,CON, CNLS, SPX

  • 13. 
    What is the function of the Network Layer, as described by the OSI reference model?
    • A. 

      Manages device addressing and tracks location of devices on the network

    • B. 

      Manage the connectivity of all networks within an anonymous system

    • C. 

      Manage the availability of all networks within an anonymous system

    • D. 

      All of the above

  • 14. 
    What device operates at the Network Layer?
    • A. 

      Switches

    • B. 

      Bridges

    • C. 

      Hubs

    • D. 

      Routers

  • 15. 
    Data is referred to as _________ at the Application Layer?
    • A. 

      Data

    • B. 

      Packets

    • C. 

      Segments

    • D. 

      Bits

    • E. 

      Frames

  • 16. 
    What are some of the common standards that are implemented at the Network Layer?
    • A. 

      LAT, NETBIOS, IP, DDP

    • B. 

      NetBIOS, LAT, DDP, SNA

    • C. 

      IP, IPX, DDP

    • D. 

      SDLC, LAT, NETBIOS

  • 17. 
    What is the function of the Data Link Layer, as described by the OSI reference model?
    • A. 

      Provides access to the physical media.

    • B. 

      Describes the framing standard.

    • C. 

      Describes the error correction mechanism that will be used.

    • D. 

      None of the above.

  • 18. 
    What are some common standards that are implemented at the Data Link Layer? (Select all correct answers)
    • A. 

      Ethernet

    • B. 

      IEEE 802.3

    • C. 

      Frame-Relay

    • D. 

      HDLC

    • E. 

      PPP

  • 19. 
    Data is referred to as __________ at the Data Link Layer?
    • A. 

      Data

    • B. 

      Packets

    • C. 

      Segments

    • D. 

      Bits

    • E. 

      Frames

  • 20. 
    What devices operate at the Data Link Layer?
    • A. 

      Switches

    • B. 

      Bridges

    • C. 

      Hubs

    • D. 

      Routers

  • 21. 
    What is the primary difference between an Ethernet  and IEEE 802.3 frame?
    • A. 

      Ethernet has a length field and the IEEE 802.3 frame has a type field.

    • B. 

      Ethernet has a type field and the IEEE 802.3 frame has a length field.

    • C. 

      The preamble field is larger in the Ethernet Frame.

    • D. 

      The preamble field is smaller in the Ethernet Frame.

  • 22. 
    IEEE committee subdivided the Data Link Layer into two sublayers, they are?
    • A. 

      SNAP and SAP sublayers

    • B. 

      LLC and SAP sublayers

    • C. 

      LLC and MAC sublayers

    • D. 

      LLC and SNAP sublayers

  • 23. 
    How does IEEE 802.3 reference what protocol resides at layer three?
    • A. 

      Ethernet type field

    • B. 

      Length field

    • C. 

      LLC header

    • D. 

      None of the above

  • 24. 
    What is the function of the Physical Layer, as described by the OSI reference model?
    • A. 

      Provides the electrical, mechanical, procedural and functional means for activating and maintaining the physical link between systems.

    • B. 

      Binary transmission

    • C. 

      Physical Layer encoding

    • D. 

      All of the above

  • 25. 
    Data is referred to as __________ at the Physical Layer Layer?
    • A. 

      Data

    • B. 

      Packets

    • C. 

      Segments

    • D. 

      Bits

    • E. 

      Frames

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