MAC Destination Address Types Section 13.2 Quiz
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Questions and Answers

What is the total delay in the datagram switching case?

  • 0.012 s
  • 0.010602 s (correct)
  • 0.01068 s
  • 0.0085 s

    • What type of link is a point-to-point WAN?

  • A link connecting devices in an office, building, or campus
  • A link providing long distance transmission over a large geographical area
  • A link connecting LANs or servers together using switches or routers
  • A home DSL connection to Etisalat (correct)

    • In which network category does a wide area network operate?

  • Category 6
  • Category 8 (correct)
  • Category 1
  • Category 3

    • What are the common topologies for local area networks?

    <p>Bus and Star</p> Signup and view all the answers

    What does NIC stand for in the context of networks?

    <p>Network Interface Card</p> Signup and view all the answers

    What is the purpose of a Wide Area Network?

    <p>To provide long distance transmission over a large geographical area</p> Signup and view all the answers

    In a switched network, what are the nodes concerned with?

    <p>Transmission links</p> Signup and view all the answers

    What type of method is used for data transfer in packet switching?

    <p>Store-and-forward transmission</p> Signup and view all the answers

    What kind of packets are accepted in packet switching networks?

    <p>Packets when the network is busy</p> Signup and view all the answers

    In packet switching, how are longer messages transmitted?

    <p>Split into smaller packets</p> Signup and view all the answers

    What is included in each packet in packet switching?

    <p>Payload of user data and control info header</p> Signup and view all the answers

    What is the purpose of redundant connections in a switched network?

    <p>To enhance reliability</p> Signup and view all the answers

    What type of address is a MAC address with the first hexadecimal digit being 4?

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

    In Ethernet, what does a MAC destination address with all bits set to 1s represent?

    <p>Broadcast address</p> Signup and view all the answers

    Which device operates in a single collision domain according to the text?

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

    What function does a transparent switch (bridge) perform according to the text?

    <p>Interconnect IEEE LANs with complete transparency</p> Signup and view all the answers

    What technique is used to build a table in transparent switches according to the text?

    <p>Backward learning</p> Signup and view all the answers

    What type of operation does full duplex support according to the text?

    <p>Separate collision domains</p> Signup and view all the answers

    What is the main advantage of using a datagram network over a virtual circuit network?

    <p>No call setup phase and more flexibility</p> Signup and view all the answers

    In datagram-switched networks, what contributes to the total delay for packet transmission?

    <p>Propagation time and setup delay</p> Signup and view all the answers

    When comparing the reliability of datagram networks and virtual circuit networks, which statement is true?

    <p>Virtual circuit networks are more reliable due to fewer routing decisions</p> Signup and view all the answers

    What contributes to the total delay in virtual-circuit switched networks?

    <p>Request/response message transmission delay and teardown message delay</p> Signup and view all the answers

    For a packet size of 1500 Bytes being sent on a link with 2 datagram switches, what is the significance of the queuing time and processing time in each switch?

    <p>They impact the total delay for packet transmission</p> Signup and view all the answers

    Why is routing decision not needed in datagram-switched networks?

    <p>Because no call setup phase is required</p> Signup and view all the answers

    What is the primary function of a transparent bridge in a network?

    <p>Connecting similar or different LANs without modifying frame content</p> Signup and view all the answers

    What is the main role of a repeater in a network?

    <p>Signal regeneration</p> Signup and view all the answers

    In the context of network devices, what is the purpose of a router?

    <p>Internet routing</p> Signup and view all the answers

    What is the key feature of hubs in a network?

    <p>All traffic appears in both LANs</p> Signup and view all the answers

    How do bridges differ from routers in a network?

    <p>Bridges map between MAC formats for different LANs, while routers handle internet routing</p> Signup and view all the answers

    What is the primary purpose of the routing table in a network?

    <p>To determine the best path for packet forwarding</p> Signup and view all the answers

    What is the function of the Logical Link Control (LLC) sublayer in IEEE 802.2?

    <p>Facilitates the exchange of frames between LANs with different MAC protocols</p> Signup and view all the answers

    What is the primary function of the Medium Access Control (MAC) sublayer in IEEE 802.2?

    <p>Coordinate access to the medium for frame transfer</p> Signup and view all the answers

    In an 802.3 MAC frame, what is the purpose of the preamble and start frame delimiter (SFD)?

    <p>Synchronizing receiver's clock and detecting the start of a frame</p> Signup and view all the answers

    What is the range of bytes for an 802.3 MAC frame, including the address fields?

    <p>64 - 1518 bytes</p> Signup and view all the answers

    Which address type in an 802.3 MAC frame corresponds to a single (unicast) address?

    <p>Destination address</p> Signup and view all the answers

    What are the machines identified by in an 802.2 MAC frame?

    <p>MAC addresses</p> Signup and view all the answers

    Which sublayer in IEEE 802 handles the coordination of access to the medium?

    <p>Medium Access Control (MAC) sublayer</p> Signup and view all the answers

    What type of service does the Logical Link Control (LLC) sublayer provide to the network layer?

    <p>Frame exchange service</p> Signup and view all the answers

    What do the first 24 bits of a source address in an 802.3 MAC frame represent?

    <p>Bits assigned to manufacturer</p> Signup and view all the answers

    What is a function performed by IEEE 802.2 Logical Link Control (LLC)?

    <p>Provides a means for exchanging frames between LANs using different MAC protocols</p> Signup and view all the answers

    Study Notes

    Network Fundamentals

    • In datagram switching, the total delay includes queuing time, processing time, and transmission time.
    • A point-to-point WAN (Wide Area Network) is a type of link.
    • WANs operate in the network category.

    LAN Topologies

    • Common topologies for local area networks include bus, star, ring, mesh, and hybrid.

    Network Devices

    • NIC stands for Network Interface Card in the context of networks.
    • The primary purpose of a Wide Area Network is to connect multiple LANs.

    Packet Switching

    • In packet switching, data transfer uses a store-and-forward method.
    • Packet switching networks only accept packets with a maximum size.
    • Longer messages are transmitted by breaking them into smaller packets.
    • Each packet includes source and destination addresses, packet length, and packet sequence number.
    • Redundant connections in a switched network improve reliability.

    MAC Addresses

    • A MAC address with the first hexadecimal digit being 4 is a unicast address.
    • A MAC destination address with all bits set to 1s in Ethernet represents a broadcast address.

    Switches and Bridges

    • A device that operates in a single collision domain is a switch.
    • A transparent switch (bridge) forwards frames based on MAC addresses.
    • Transparent switches build a table using a technique called learning.
    • Full duplex supports simultaneous transmission and reception.
    • A repeater's primary function is to amplify and extend network signals.

    Network Devices

    • A router connects multiple networks and routes traffic between them.
    • A hub's primary function is to repeat incoming signals to all connected devices.
    • Bridges differ from routers in that they connect multiple networks at the data link layer.
    • The primary purpose of a routing table is to store routes for packet forwarding.

    IEEE 802.2

    • The Logical Link Control (LLC) sublayer provides flow control and error detection services to the network layer.
    • The Medium Access Control (MAC) sublayer manages data transmission and reception.
    • In an 802.3 MAC frame, the preamble and start frame delimiter (SFD) synchronize the receiver.
    • The primary function of the MAC sublayer is to manage access to the medium.
    • In an 802.2 MAC frame, machines are identified by unicast addresses.
    • The LLC sublayer provides a best-effort delivery service to the network layer.

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    Description

    Test your understanding of MAC destination address types as per Section 13.2. Determine the type of MAC destination addresses (unicast, multicast, or broadcast) based on the least significant bit of the first byte.

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