思科认证考试

The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?（）A、Distance vector protocols send the entire routing table to directly connected neighbors.B、Distance vector protocols are responsible for

题目

The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?（）

  • A、Distance vector protocols send the entire routing table to directly connected neighbors.
  • B、Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
  • C、Link state protocols are responsible for sending the entire routing table to the whole network.
  • D、Link state protocols send updates regarding their own links status to all other routers on the network.
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相似问题和答案

第1题：

Whichtwostatementsaboutthebgpdeterministic－medandbgpalways－compare－medcommandsare true?()

A.Thebgpdeterministic-medcommandisusedtoinfluencetheBGProuteselectionprocesstocausethe MEDattributetohavehigherprecedenceovertheASpathlength

B.Thebgpalways-comparecommandisusedtoinfluencetheBGProuteselectionprocesstocausethe MEDattributetohavehigherprecedenceovertheASpathsystem

C.Enablingthebgpdeterministic-medcommandensuresthecomparisonoftheMEDvariablewhen choosingroutesadvertisedbydifferentpeersinthesameautonomoussystem.

D.Enablingthebgpalways-compare-medcommandensuresthecomparisonoftheMEDvariablefor pathsfromneighborsindifferentautonomoussystems.

E.Thebgpdeterministic-medandbgpalways-compare-medcommandsareenabledbydefult.


参考答案：C, D

第2题：

( )with traditional contexts，the Internet-based learning environment provides new ways of presenting and obtaining knowledge.

A.Compared
B.Comparing
C.To Compare
D.Compare

答案：A
解析：
考查非谓语动词。分析整个题干可知，逗号前的分句为状语，前后又无连词，所以空格处应填非谓语动词，排除D项。根据句意应是将the Internet-based learning environment与traditional contexts进行比较，应用被动语态，排除B、C两项。过去分词表被动，因此compared符合题意。故本题选A。句意：与传统环境相比，互联网学习环境提供了呈现和获取知识的新方式。

第3题：

Regarding the extended ping command; which of the statements below are true?

(Select all valid answer choices)

A．The extended ping command is supported from user EXEC mode.

B．The extended ping command is available from privileged EXEC mode.

C．With the extended ping command you can specify the TCP and UDP port to be pinged.

D．With the extended ping command you can specify the timeout value.

E．With the extended ping command you can specify the datagram size.


正确答案：BDE
解析：Explanation:
The extended ping command works only at the privileged EXEC command line.
Some of the extended ping command values include the datagram size and timeout value as shown:

Datagram size [100]: Size of the ping packet (in bytes). Default: 100 bytes.

Timeout in seconds [2]: Timeout interval. Default: 2 (seconds). The ping is declared successful only if the ECHO REPLY packet is received before this time interval.

Incorrect Answers:
A. Regular pings are available in both user and privileged mode, but not extended pings.
C. Ports can not be specified.

第4题：

The TestKingA router is configured as shown below: TestKingA(config)# interface loopback 0 TestKingA(config-if)# ip address 192.168.16.24 255.255.255.255 As a result of this change, which of the statements below are true?（）

  • A、It creates a virtual, software only, interface.
  • B、It provides a way to test the convergence of OSPF routing updates.
  • C、The mask of 255.255.255.255 is called a host mask.
  • D、It uses a wildcard mask of 255.255.255.255.
  • E、It ensures that an interface is always active for OSPF processes.
  • F、Loopback interfaces must be numbered 0.

正确答案:A,C,E

第5题：

主甲板以下是二层甲板。（）

  • A、The deck below the lower deck is known as ‘tween deck.
  • B、The deck below the main deck is known as ‘tween deck.
  • C、The deck above the main deck is known as ‘tween deck.
  • D、The deck below the lower deck is known as main deck.

正确答案:B

第6题：

______the farm subsidies, the built-in costs of growing crops have a bigger impact on the price of staples.

A.Comparing with
B.Compared with
C.Compare with
D.Compare within

答案：B
解析：
题目意为“_____农业补贴，种植作物的内在成本对主食价格影响较大。”题干中，由于主语是the built-in costs of growing crops，“农业补贴”是被人来和“内在成本”做比较，而不是自己主动比较，所以用被动语态compared with，表示与.....相比较，因此选项B正确。
　　

第7题：

Which three statements are true about the data traffic characteristics of voice traffic？ （）

  • A、latency must be kept below 150 ms
  • B、latency is not a concern as long as jitter is kept below 30 ms
  • C、voice packets do not require a specific type of queuing
  • D、voice packets are rather small
  • E、voice packets require TCP for rapid retransmission of dropped packets
  • F、voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload

正确答案:A,D,F

第8题：

You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network? (Select all valid answers)

A. There are 254 usable subnets.

B. There are 256 usable hosts per subnet.

C. There are 50 usable subnets.

D. There are 254 usable hosts per subnet.

E. There are 24 usable hosts per subnet.

F. There is one usable network.


正确答案：AD
A,D 解析：Explanation:
The default subnet mask for Class B is 255.255.0.0. Thus an extra 8 bits have been used for the network portion, leaving 8 for hosts. The 2n - 2 formula (28 - 2 in this case for both the network and IP hosts) gives us 254 networks and 254 hosts per network.

Incorrect Answers:
B: We must remember to always subtract 2 (one for the network, and one for the broadcast) so the result is 254, not 256.

C, E: No possible network mask would give us this exact number of subnets or hosts.

F: This would be true if this were a class C network, not a class B.

第9题：

多因素方差分析应选择的操作菜单是（）

  • A、Analyze→General Linear Model→Univariate
  • B、Analyze→Compare  Means→One-Samples  T  Test
  • C、Analyze→Compare  Means→Independent-Samples  T  Test
  • D、Analyze→Compare  Means→One-Way  ANOVA

正确答案:D

第10题：

说明FSC报警点IO-COMPARE的含义。


正确答案:I/O比较，同一对卡信号不一致报警。

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