Refer to the exhibit． What is the most appropriate summarization for these routes?

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问题 Refer to the exhibit． What is the most appropriate summarization for these routes?

选项 A、 10．0．0．0 /21
B、 10．0．0．0 /22
C、 10．0．0．0 /23
D、 10．0．0．0 /24

答案B

解析考点分析：这道题考的是子网的聚合。
10．0． 0 0 0 0 0 0 0 0 ．0
10．0． 0 0 0 0 0 0 0 1 ．0
10．0． 0 0 0 0 0 0 1 0 ．0
10．0． 0 0 0 0 0 0 1 0 ．0

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Refer to the exhibit． What is the most appropriate summarization for these routes?

思科640802

思科认证

Writeanessayof160~200wordsbasedonthefollowingdrawing.Inyouressay,youshould1)describethedrawingbriefly,

In1929JohnD.Rockefellerdecideditwastimetosellshareswhenevenashoe-shineboyofferedhimasharetip.Duringthepa

Afundamentalproblemforunderstandingtheevolutionofhumanlanguagehasbeenthelackofsignificantparallelsamongnonhuma

WhileAmericanshavebecomeevermoredependentuponelectricityintheirdailylives,acrucialpartofthesystemthatsupport

"Thisisareallyexcitingtime—aneweraisstarting,"saysPeterBazalgette,thechiefcreativeofficerofEndemol,thetelev

Howgoodaregradesasmethodofevaluationifalmosteveryone’sGPA(平均积分点)isthesame?Thisiswheretheproblemlies.Gradei

Althoughcreditcardsarebecomingamoreacceptablepartofthefinancialscene,theyarestillregardedwithsuspicionbymany

Inourcontemporaryculture,theprospectofcommunicatingwith—orevenlookingat—astrangerisvirtuallyunbearable.Every

[A]Instead,acrossstudiesusingslightlydifferentmethods,theresearcherstookadvantageofsmartphonesasdatacollectiond

TheeconomicdebateintheU.S.regardingthefiscalstimuluspackagecenteredon"bangforthebuck,"thatis,onwhethertaxc

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A、She’sproudofbeingabletodomanythingsatthesametime.B、Sheissuretofinishallthethingsinafewhours.C、Shedre