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单选题Which of the following BEST describes CAT5e？（）A Contains four pair of wires of various gaugeB Contains two wires in a red fireproof jacketC Contains four twisted pairs of wiresD Contains eight wires within a thick jacket with a rip cord

题目
单选题
Which of the following BEST describes CAT5e？（）
A

Contains four pair of wires of various gauge

B

Contains two wires in a red fireproof jacket

C

Contains four twisted pairs of wires

D

Contains eight wires within a thick jacket with a rip cord

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相似问题和答案

第1题：

Which statement is true about a routing table?()

A. It contains routes learned dynamically only.

B. It finds the best path to each destination by using a modified shortest-path-first calculation.

C. It contains only active BGP routes.

D. It contains all accepted routes to all destinations.


参考答案：D

第2题：

The earliest telephones required a different pair of wires for each phone ___ you wished to connect.

A.that

B.which

C.where
D.to which

答案：D
解析：
本题考察定语从句。题目意为“最早的电话需要一对不同的线路分别给本机和想要接通的电话。”本题是介词+关系代词形式，connect表示连接二者时，需要介词，connect sb/sth with/to sth。关系代词which在定语从句中作介词的宾语时,可以跟介词一起放在主句和从句之间，这时的关系代词不能省略;有时为了使关系代词紧跟它所修饰的先行词,也可以把介词放在从句中有关动词的后面,这时的which可用that替换。

考点
定语从句

第3题：

Which best describes an inline view? ()

A. a schema object

B. a subquery that can contain an ORDER BY clause

C. another name for a view that contains group functions

D. a subquery that is part of the FROM clause of another query


参考答案：D

第4题：

Which three of these are characteristics of UTP cable？（）

  • A、The wires in each pair are wrapped around each other
  • B、An insulating material covers each of the individual copper wires in it
  • C、It comes in eight-pair wire bindles
  • D、EMI and RFI cause only limited degradation to signals running over it
  • E、It comes in seven categories
  • F、IT has an external diameter of approximately 0 28 inches

正确答案:A,B,D

第5题：

Which statement is true about a routing table?（）

  • A、It contains routers learned dynamically only
  • B、It finds the best path to each destination by using a modified shortest-path-first calculation
  • C、It contains only active BGP routes
  • D、It contains all accepted routes to all destinations

正确答案:D

第6题：

Which two factors affect the speed of your DSL connection?()

A.line quality

B.distance from the CO

C.brand of xDSL modem

D.number of twisted-pair wires used


参考答案：A, B

第7题：

A c（） sentence contains two or more clauses， one of which is incorporated in the other.
complex
略

第8题：

Examine the following scenario:The target database instance is running. The most recent backup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host, using the Recovery Manager (RMAN) duplicate command as follows:Which statement is true about the duplicate database in this scenario?（）

A. It contains data till the last backup

B. It contains all data from target database until the current time

C. It contains all data from only the committed transactions in the target database

D. It contains all data except that which is used by the transactions in the current online redo file of target database


参考答案：D

第9题：

Your network contains an Active Directory domain. The domain contains four domain controllers.  You modify the Active Directory schema.  You need to verify that all the domain controllers received the schema modification.     Which command should you run（）

  • A、dcdiag.exe /a
  • B、netdom.exe query fsmo
  • C、repadmin.exe /showrepl *
  • D、sc.exe query ntds

正确答案:C

第10题：

After testing a new 100BaseTX cable, the technician determines that only pairs 4, 5, 7, and 8 are straight-thru wires. Which of the following MOST likely describes this cable type?（）

  • A、Crossover cable with open pairs
  • B、Crossover cable
  • C、Rollover cable
  • D、Straight-thru cable with open pairs

正确答案:B

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