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A、The naming method for physical layer of the standard Ethernet is: IEEE802.3 X Type-Y Name
B、X represents data transmission rate in Mbps
C、Y denotes the maximum length of the netw……继续阅读 »
A、Establishing and maintaining a mapping table representing the corresponding relationship between MAC address and switch-port number
B、Establishing a virtual connection between po……继续阅读 »
A、4.4 Gbps
B、6.4 Gbps
C、6.8 Gbps
D、8.8 Gbps
喵查答案：8.8 Gbps
……继续阅读 »
A、Traditional Ethernet uses a coaxial cable as a bus to connect multiple nodes
B、Coaxial cables connecting multiple nodes are called “shared media”
C、The phenomenon tha……继续阅读 »
A、Under the same load condition, token network shows good throughput and low transmission delay
B、Under the same scale condition, the cost of token network is generally higher than……继续阅读 »
A、CDMA
B、CSMA
C、CSMA/CD
D、CSMA/CA
喵查答案：CSMA/CA
……继续阅读 »
A、IEEE802.11 supports two basic structural units in the presence of base stations: BSS and ESS
B、An AP of a BSS is a base station with a diameter of less than 100m
C、Through the ro……继续阅读 »
A、The architecture follows the TCP/IP hierarchy model
B、Transmission medium mainly adopt coaxial cable, twisted pair and optical fiber
C、Transmitting and receiving data frames by s……继续阅读 »
A、Token Bus is a kind of local-area network that uses tokens as control nodes to access the common bus
B、Token is a data frame with a special structure
C、The sequence of token obta……继续阅读 »
A、Nodes in the token ring network form a closed ring structure through a network card and a point-to-point line
B、The data in the ring is transmitted around the ring station along ……继续阅读 »
A、IEEE 802.3 defines CSMA/CD bus access-control sublayer and physical layer
B、IEEE 802.11 defines the standard of access-control sublayer and physical layer for WLAN
C、IEEE 802.15 ……继续阅读 »
A、Propagation delay is equal to D/V
B、The value of “conflict window” is equal to D/V
C、Within 2 times the propagation delay, the conflicting data frame can be propagate……继续阅读 »
A、The “type field” specified in the 802.3 corresponds to the “type/length field” of Ethernet V2.0 frames
B、No length field is set in DIX frames, and the rec……继续阅读 »
A、IEEE 802.1 Q extends the Ethernet frame with the length and type fields in the frame head
B、TCI is divided into three parts: priority, CFI and VID
C、TPID value is 0x8100
D、VID va……继续阅读 »
A、The source node sending the frame is responsible for routing
B、It is a plug-and-play LAN interconnection device
C、Generating and maintaining that bridge forward table by self-lea……继续阅读 »
