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● Both bus and tree topologies are characterized by the use of multipoint （71）. For the bus, all stations attach, through appropriate hardware（72）known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station a
题目
● Both bus and tree topologies are characterized by the use of multipoint （71）. For the bus, all stations attach, through appropriate hardware（72）known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the （73）. A transmission from any station propagates the length of the medium in both directions and can be received by all other （74）.At each end of the bus is a （75) , which absorbs any signal, removing it from the bus.
（71）
A. medium
B. connection
C. token
D. resource
（72）
A. processing
B. switching
C. routing
D. interfacing
（73）
A. tree
B. bus
C. star
D. ring
（74）
A. routers
B. stations
C. servers
D. switches
（75）
A. tap
B. repeater
C. terminator
D. concentrator
相似考题
更多“● Both bus and tree topologies are characterized by the use of multipoint (71). For the bu ”相关问题
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第1题：
InLayer2topologies，spanning-treefailurescancauseloopsinthenetwork.Theseunblockedloopscancausenetworkfailuresbecauseofexcessivetraffic.WhichtwoCatalyst6500featurescanbeusedtolimitexcessivetrafficduringspanning-treeloopconditions？（）
A.loopguard
B.stormcontrol
C.stormsuppression
D.broadcastsuppression
E.BPDUguard
参考答案：B, D
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第2题：
In spring it is（ ）hot（ ）cold here．
A.both：and
B.either；or
C.neither；nor
D.not only；bu答案：C解析： -
第3题：
1、tree.add（6); tree.add（1); tree.add（1); 则遍历树集tree之后，可以输出1,1,6。（）
D 解析： 这一题通过语法就可选出是every，因为后面连接的词是单数，故选D。 -
第4题：
● Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （71）. It determines how the various results are computed by the product and presents this information in the form. of a （72） and associated scenarios. The second is （73） , which determines the classes and their attributes. Then determine the interrelationships and interaction among the classes. The last step is （74） , which determines the actions performed by or to each class or subclass and presents this information in the form. of （75） .
（71）
A.use-case modeling
B. class modeling
C. dynamic modeling
D. behavioral modeling
（72）
A. collaboration diagram
B. sequence diagram
C. use-case diagram
D. activity diagram
（73）
A. use-case modeling
B. class modeling
C. dynamic modeling
D. behavioral modeling
（74）
A.use-case modeling
B. class modeling
C. dynamic modeling
D. behavioral modeling
（75）
A. activity diagram
B. component diagram
C. sequence diagram
D. state diagram
正确答案：A,C,B,C,D
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第5题：
tree.add（6); tree.add（1); tree.add（1); 则遍历树集tree之后，可以输出1,1,6。（）
FEDCBA -
第6题：
已知wire [31:0] bus;则下列说法真确的是 。
A．bus [31]是bus的最高有效位
B．bus [0]是bus的最高有效位
C．bus [31]是bus的最低有效位
D．bus [0]是bus的最低有效位
bus [31] 是 bus 的最高有效位;bus [0] 是 bus 的最高有效位