多項(xiàng)選擇題Which three of these statements regarding 802.1Q trunking are correct?（）

A. 802.1Q native VLAN frames are untagged by default.
B. 802.1Q trunking ports can also be secure ports.
C. 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D. 802.1Q trunks require full-duplex, point-to-point connectivity.
E. 802.1Q trunks should have native VLANs that are the same at both ends.


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1.多項(xiàng)選擇題Which two of these statements regarding RSTP are correct?（）

A. RSTP cannot operate with PVST+.
B. RSTP defines new port roles.
C. RSTP defines no new port states.
D. RSTP is a proprietary implementation of IEEE 802.1D STP.
E. RSTP is compatible with the original IEEE 802.1D STP.

2.多項(xiàng)選擇題What are three basic parameters to configure on a wireless access point?（）

A.SSID
B.RTS/CTS
C.AES-CCMP
D.TKIP/MIC
E.RF channel
F.authentication method

3.多項(xiàng)選擇題Which two of these statements are true of IPv6 address representation?（）

A. There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
B. A single interface may be assigned multiple IPv6 addresses of any type.
C. Every IPv6 interface contains at least one loopback address.
D. The first 64 bits represent the dynamically created interface ID.
E. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

4.多項(xiàng)選擇題Which two statements describe characteristics of IPv6 unicast addressing?（）

A. Global addresses start with 2000::/3.
B. Link-local addresses start with FE00:/12.
C. Link-local addresses start with FF00::/10.
D. There is only one loopback address and it is ::1.
E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

5.多項(xiàng)選擇題Which two devices can interfere with the operation of a wireless network because they operate on similar frequencies?（）

A.copier
B.microwave oven
C.toaster
D.cordless phone
E.IP phone
F.AM radio