BCMSN 试题解析(10题)

家业

1.Which of the following are true of unicast IP？
　　
　　
　　It can be either TCP or UDP
    It uses a class D address A server transmitting unicast
    IP does not need to ‘know’ the recipient‘s address
　　
　　2.Which of the following are true of remote services？
　　They are centralized and therefore
    require transport across the backbone to reach the user
    They are common to all users They are on a different VLAN
    than the user They are typically connected
    to the user via a layer 2 switching path
　　
　　3.Which of the following is a form of out-of-band management？
　　Web-based management Console port LAT TELNET
　　
　　4.Spanning tree protocols puts a port in one of 5 states.
    Which of the following is true of the forwarding state？
　　No frames are forwarded. BPDU‘s are heard.
    No frames are forwarded. No BPDU’s are heard.
    No frames are forwarded. Learning Addresses.
    Frames are forwarded. Learning addresses.
　　
　　5.What security measures does Cisco suggest
    in the access layer of their recommended campus architecture？
　　Route filtering Cisco recommends no security measures
    in the access layer Device security such as passwords
    Port security
　　
　　6.Telnet access directly to a switch or router command
    uses what facility？

        slip server async port line
　　
　　7.What mechanism can be used to prevent ‘rogue’
    HSRP routers from asserting high priorities and
    becoming the active router？
　　MD5 authentication may be used in HSRP messages
    Plain text authentication may be used in HSRP messages
    The command ‘standby （group_number）access-group （access_list）’
    is used to specify the routers that may participate
    in an HSRP group Each HSRP router is explicitly
    configured with the address of the other routers
    in the group using
    the command ‘standby （group_number） （group_member_address）
　　
　　8.What command will set duplex mode
    on a set based switch to half？
　　9.Which of the following are true of a LAN
    segmented with layer 2 switches？
　　Path determination is based on OSI reference model
    Layer2 information Path determination is based
    on OSI reference model Layer3 information
　　
　　Path determination is based on OSI reference model
    Layer4 information It supports multiple high-speed
    data exchanges
　　
　　10.What will a Catalyst switch do with
    a multicast （in default configuration）？
　　
　　Learn the correct destinations Flood the multicast
    frames out each port within the VLAN on
    which it is received Query the IGMP designated
    router Query the domain to determine multicast
    group membership