● (71) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string．(72) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection．(73) is an approach preferred by cable TV providers ．In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable．(74) is a device used to connect two separate network that use different communication protocol．(75) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative．(71) A． MDB．RSAC．DESD．MIB(72)A．RTPB．RTTPC FTPD．NNTP(73) A． ADSLB．FTTCC．HFCD．FTTH(74)A ．RouterB．GatewayC．BridgeD．hub(75)A ．NNIB．NRZC．NAKD．NVT
● (71) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string．
(72) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection．
(73) is an approach preferred by cable TV providers ．In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable．
(74) is a device used to connect two separate network that use different communication protocol．
(75) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative．
(71) A． MD
B．RSA
C．DES
D．MIB
(72)A．RTP
B．RTTPC FTP
D．NNTP
(73) A． ADSL
B．FTTC
C．HFC
D．FTTH
(74)A ．Router
B．Gateway
C．Bridge
D．hub
(75)A ．NNI
B．NRZ
C．NAK
D．NVT
相关考题：
根据下面的文字资料回答 71～75 题 In the following essay．each blank has four choices．Choose the best answer and write down on the answer sheet．Spread spectrum simply means that data is sent in（ 1 ）pieces over a number of the discrete frequencies available for use at any time in the specified range．Devices using（ 2 ） spread spectrum(DSSS)communicate by splitting each（ 3 ）of data into several parts and sending them concurrently on different（ 4 ），DSSS uses a lot of the available（ 5 ），about 22 megahertz(MHz)．第71题：文中（ 1 ）处正确的答案是（ ）。A．smallB．highC．lowD．long
● Which of the following statement related to PMO is not correct? (71)(71)A. The specific form, function, and structure of a PMO is dependent upon the needs of the organization that it supports.B. One of the key features of a PMO is managing shared resources across all projects administered by the PMO.C. The PMO focuses on the specified project objectives.D. The PMO optimizes the use of shared organizational resources across all projects.
Which of the following statement related to PMO is not correct? (71)A．The specific form, function, and structure of a PMO are dependent upon the needs of the organization that it supports.B．One of the key features of a PMO is managing shared resources across all projects administered by the PMO.C．The PMO focuses on the specified project objectives.D．The PMO optimizes the use of shared organizational resources across all projects.
Which ofthe following statement related to PMO is not correct?(71) A．The specific form，function，and structure of a PMO is dependent upon the needs of the organization that it supports B．One of the key features of a PMO is managing shared resources across all projects administ-ered by the PMO C．The PMO focuses on the specified project objectives D．The PMO optimizes the use ofshared organizational resources across all projects
There is nothing in this world constant but inconstancy．--SWIFTProject after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built．In most projects,the first system built is （71） usable,It may be too slow,too big,awkward to use,or all three．There is no （72） but to start again,smarting but smarter,and build a redesigned version in which these problems are solved．The discard and （73） may be done in one lump,or it may be done piece-by-piece．But all large-system experience shows that it will be done．Where a new system concept or new technology is used,one has to build a system to throw away,for even the best planning is not so omniscient（全知的）as to get it right the first time．The management question,therefore ,is not whether to build a pilot system and throw it away．You will do that．The only question is whether to plan in advance to build a （74）,or to promise to deliver the throwaway to customers．Seen this way,the answer is much clearer．Delivering that throwaway to customers buys time,but it does so only at the （75） of agony（极大痛苦）for the user,distraction for the builders while they do the redesign,and a bad reputation for the product that best redesign will find hard to live down．Hence plan to throw one away;you will,anyhow．71.()A.almostB.oftenC.usuallyD.barely
There is nothing in this world constant butinconstancy. —SWIFT Project after project designs a set of algorithms and thenplunges into construction of customer-deliverable software on a schedule thatdemands delivery of the first thing built.?In most projects, the first system built is（71） usable. Itmay be too slow, too big, awkward to use, or all three. There is no （72） but to startagain, smarting but smarter, and build a redesigned version in which theseproblems are solved. The discard and （73） may be done in one lump, or it may be done piece-by-piece. But alllarge-system experience shows that it will be done. Where a new system conceptor new technology is used, one has to build a system to throw away, for eventhe best planning is not so omniscient （全知的） as to get it right the first time.The management question, therefore, is notwhether to build a pilot system and throw it away. You will do that. The onlyquestion is whether to plan in advance to build a （74） , or topromise to deliver the throwaway to customers. Seen this way, the answer ismuch clearer. Delivering that throwaway to customers buys time, but it does soonly at the （75） of agony （极大痛苦）for the user, distraction for the builders while they do theredesign, and a bad reputation for the product that the best redesign will findhard to live down.Hence plan to throw one away; you will,anyhow.（71）A.almostB.oftenC.usuallyD.barely
Soon, more of the information we receive via the Internet could come(71)in digital wrappers.Wrappers are made up(72)software code that's targeted to do specific things with the data(73)within them, such as helping to define queries for search engines. They also keep(74)from(75)access to that code.A．packageB．packagedC．packagesD．packaging
Human resources workers serve a vital ( ) in screening qualified candidates for the company'smanagerial positions.A. playB. functionC. skillD. piece
__________A.receiveB.friendC.fieldD.piece