多项选择题
Which of the following correctly describe steps in the OSI data encapsulation process?（）
A. The transport layer divides a data stream into segments and may add reliability and flow control information.
B. The data link layer adds physical source and destination addresses and an FCS to the segment.
C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
E. The presentation layer translates bits into voltages for transmission across the physical link.
相关考题
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多项选择题
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. -
多项选择题
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. -
多项选择题
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
