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Chapter 3 Review

Quiz by Eric Jackson

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35 questions
Show answers
  • Q1
    Which network design feature requires Spanning Tree Protocol (STP) to ensure correct network operation?
    link-state dynamic routing that provides redundant routes
    static default routes
    redundant links between Layer 2 switches
    implementing VLANs to contain broadcasts
    45s
  • Q2
    Which network design feature requires Spanning Tree Protocol (STP) to ensure correct network operation?
    static default routes
    link-state dynamic routing that provides redundant routes
    removing single points of failure with multiple Layer 2 switches
    implementing VLANs to contain broadcasts
    60s
  • Q3
    What is the outcome of a Layer 2 broadcast storm?
    CSMA/CD will cause each host to continue transmitting frames.
    Routers will take over the forwarding of frames as switches become congested.
    ARP broadcast requests are returned to the transmitting host.
    New traffic is discarded by the switch because it is unable to be processed.
    60s
  • Q4
    What is the purpose of the Spanning Tree Protocol (STP)?
    allows Cisco devices to exchange routing table updates
    creates smaller broadcast domains
    prevents routing loops on a router
    prevents Layer 2 loops
    45s
  • Q5
    What is a characteristic of a Layer 2 loop?
    Routers continually forward packets to other routers.
    Broadcast frames are forwarded back to the sending switch.
    A switch is continually forwarding the same unicast frame.
    The Time-to-Live attribute of a frame is set to infinity.
    45s
  • Q6
    What additional information is contained in the 12-bit extended system ID of a BPDU?
    MAC Address
    port ID
    VLAN ID
    IP address
    45s
  • Q7
    Which components can be combined with 2 others to form a bridge ID?
    cost
    IP address
    extended system ID
    port ID
    45s
  • Q8
    Which components can be combined with 2 others to form a bridge ID?
    cost
    MAC address
    IP address
    port ID
    45s
  • Q9
    Which components can be combined with 2 others to form a bridge ID?
    cost
    bridge priority
    port ID
    IP address
    45s
  • Q10
    Refer to the exhibit. Which switch will be elected the root bridge?
    Question Image
    SW3 will become the root bridge.
    SW4 will become the root bridge.
    SW1 will become the root bridge.
    SW2 will become the root bridge.
    120s
  • Q11
    Which switch will place a port in blocking mode?
    Question Image
    SW4 will become the root bridge.
    SW4 will get a port blocked.
    SW2 will get a port blocked.
    SW1 will become the root bridge.
    120s
  • Q12
    Which trunk link will not forward any traffic after the root bridge election process is complete?
    Question Image
    Trunk1
    Trunk3
    Trunk4
    Trunk2
    120s
  • Q13
    Which protocol provides up to 16 instances of RSTP, combines many VLANs with the same physical and logical topology into a common RSTP instance, and provides support for PortFast, BPDU guard, BPDU filter, root guard, and loop guard?
    MST
    STP
    PVST+
    Rapid PVST+
    120s
  • Q14
    Which Cisco switch feature ensures that configured switch edge ports do not cause Layer 2 loops if a port is mistakenly connected to another switch?
    BPDU guard
    extended system ID
    PortFast
    PVST+
    60s
  • Q15
    Which is a type of spanning tree protocol can cause suboptimal traffic flows because it assume only one spanning-tree instance for the entire bridged network?
    Rapid PVST+
    STP
    PVST+
    MSTP
    60s

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