GWD31-16

由 **odie** » 2005-10-28 16:44

In recent years, networks of fiber-optic cable have been replacing electrical wire for transmitting telecommunications signals. Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted father. Light-Line is the leading manufacturer of signal regenerators. Therefore, Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.

Which of the following, if true, casts the most doubt on the prediction about light-ling’s prospects?

A: Telecommunications signals sent along electrical wires can travel much farther than signals transmitted through fiber-optic before needing to be regenerated.
B: Expanding its production of regenerators will require Light-line to spend proportionately more on labor and materials.
C: The volume of signals that a fiber-optic cable can carry is several thousand times greater than the volume that can be carried by an electrical wire of similar size.
D: There are technologies that enable telecommunications signals to be transmitted without either wire or fiber-optic cable.
E: Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration.

資料庫的答案是(E)
但我覺得(D)的否定力道強多了
(D)把前提推翻所以即使LIGHT-LINE是LEADING MANUFACTURER結論仍然不會成立

大家覺得呢?

由維尼 » 2005-10-28 16:52

個人覺得 D is out of scope.
因為他的前提之一是 if new long-distance fiber-optic telecommunications networks are constructed
所以不用光纖的新科技不在討論範圍

由 **odie** » 2005-10-28 17:34

我應該把我的想法寫得更詳細一點
Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted father.
需要regenerator的原因是 siganls running through fiber-optic cables deteriorate
L-L公司儘管是製造regenerator 龍頭老大
若(D)成立 L-L公司的regenerator也就不用賣了...

由維尼 » 2005-10-28 22:29

odie \$m[1]:我應該把我的想法寫得更詳細一點
Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted father.
需要regenerator的原因是 siganls running through fiber-optic cables deteriorate
L-L公司儘管是製造regenerator 龍頭老大
若(D)成立 L-L公司的regenerator也就不用賣了...

你説的沒錯
可是題目已經告訴你 if new long-distance fiber-optic telecommunications networks are constructed
也就是說已經確定要建立光纖網路了
所以d選項是weaken 建立光纖網路
out of scope :)

由 **odie** » 2005-10-28 23:51

感謝維尼大哥
我懂了
(D)確實out of scope

只是我想了這麼久才懂
考試的時候怎麼辦才好!?

由維尼 » 2005-10-29 00:45

odie \$m[1]:感謝維尼大哥
我懂了
(D)確實out of scope

只是我想了這麼久才懂
考試的時候怎麼辦才好!?

思路是可以訓練的
做 OG 記得看解釋
看題目的時候要弄清楚題目推論的過程
哪邊是前提哪邊是佐證哪邊是結論
以這一題為例
背景資訊是把 fiber-optic 跟 regenerator 拉上關係
第一個前提是 L公司是leading company (這個是統計上的事實不太能weaken)
第二個就是假設要建立光纖網路(這個是假設成立的前提 weaken無意義)
結論是 L會賺到
題目要weaken的是 L會賺到
這樣看起來應該比較清楚 :)

加油唷
CR抓到思路考試就不怕 :)

由 **odie** » 2005-10-29 22:02

嗯再次感謝維尼大哥的提醒
只是做CR時
常常被out of scope的選項給騙了(尤其是在時間壓力下)

請問像這類的題型是不是針對結論來weaken才是最好的答案?
還是也有weaken assumption的?

由維尼 » 2005-10-29 23:44

odie \$m[1]:嗯再次感謝維尼大哥的提醒
只是做CR時
常常被out of scope的選項給騙了(尤其是在時間壓力下)

請問像這類的題型是不是針對結論來weaken才是最好的答案?
還是也有weaken assumption的?

我不敢講說哪樣最好耶
一定會有一個最好的 (好像有點廢話:P)

考試雖然有時間壓力
不過透過og和gwd的練習
訓練自己的思路能夠快速分辨哪些是結論哪些是前提哪些是毋需辯駁的事實
我想應該臨場會有感覺的 :smile

由 **coulomb** » 2005-11-25 15:54

這一題我選不出來耶
感覺上E最像但是原題有講到Therefore, Light-line is one of the companies....
就已經說明了他是其中一家獲利的廠商
E就是說市場上有好幾家，我覺得跟原題並沒有衝突，所以weaken的力量變小了
結果我就亂選了一個答案......
有人可以跟我說說我的想法哪裡錯了嗎？謝謝

由維尼 » 2005-11-25 16:57

E是說generator的需求會變少所以有可能不賺錢

由 **coulomb** » 2005-11-28 11:49

維尼 \$m[1]:E是說generator的需求會變少所以有可能不賺錢

E的意思不是說現在有好幾家在做regenerator 而這項技術可以讓訊號傳輸遠好幾倍(比起現在還沒被regenerate的訊號)

Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration.

我以為that 之後一大串都是修飾technologies的
我看錯了嗎？？

由維尼 » 2005-11-28 12:22

coulomb \$m[1]:
維尼 \$m[1]:E是說generator的需求會變少所以有可能不賺錢

E的意思不是說現在有好幾家在做regenerator 而這項技術可以讓訊號傳輸遠好幾倍(比起現在還沒被regenerate的訊號)

Several manufacturers are developing regenerator technologies that will allow signals to be transmitted many times farther than at present before requiring regeneration.

我以為that 之後一大串都是修飾technologies的
我看錯了嗎？？

你沒看錯呀
因為訊號可以傳更遠同一段距離的fiber所需的generator就變少了

由 **hccill** » 2006-09-07 10:55

疑~我看到的答案是B耶,請問B錯在哪呢?
謝謝喔~

由 **jinoliway** » 2006-09-22 12:10

其實我也是看到答案是B耶怎麼辦
不過我選D 但是也覺得E不錯

由 **hcgh** » 2006-10-01 14:57

B並不能weaken, 搞不好還是support呢
因為搞不好Light-line regenerators 的利潤超高
多雇些員工可讓它快速擴充產能，這樣反而讓Light-line賺翻

GWD31-16

GWD31-16

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