For what two purposes does the Ethernet protocol use physical addresses?（）A、to uniquely identify devices at Layer 2B、to allow communication with devices on a different networkC、to differentiate a Layer 2 frame from a Layer 3 packetD、to establish a priorit

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For what two purposes does the Ethernet protocol use physical addresses?（）

A、to uniquely identify devices at Layer 2
B、to allow communication with devices on a different network
C、to differentiate a Layer 2 frame from a Layer 3 packet
D、to establish a priority system to determine which device gets to transmit first
E、to allow communication between different devices on the same network
F、to allow detection of a remote device when its physical address is unknown

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1.What does the passage tell about the woman？A.Her name is Lucy.B.She was called‘the Elephant Lady’.C.She helped a tiger,a lion and two bears.

2.What are two purposes of the AS_PATH attribute?()A. route selectionB. loop avoidanceC. determining equal cost paths for reachabliltyD. defining the application of other BGP attributes

3.The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate?A.Overhead power linesB.Louisiana-Mississippi ferry crossingsC.Two railroad trestlesD.Two submerged oil pipelines

4.What are three purposes of a PSNP?()A.AB.BC.CD.DE.E

更多“For what two purposes does the E”相关问题

第1题：

Teacher: After listening, answer the following two questions according to what you have heard on the tape．
(1) What is the relationship between the speakers
(2) What are the speakers' attitudes towards each other
What listening strategy does this listening activity help to train

A.Inferring．
B.Gist listening．
C.Listening for details．
D.Dictation．

答案：A
解析：
考查听力教学。在听力训练中，教师让学生在听完录音后推测出说话人之间的关系以及对彼此的态度。从这两个问题可知，教师在训练学生的inferring listening strategy。其他选项gist listening“要求抓主旨”．listeningfor details“侧重于细节”，dictation“听写”，均不符合。
第2题：

Which of the following may illustrate the difference between "competence" and__________ "performance"?

A．What a person "knows" and what he/she "does".
B．What a person "can do" and what he/she "does".
C．What a person "does" and what he/she "knows".
D．What a person "does" and what he/she "can do".

答案：A
解析：
考查语言学知识。competence“语言能力”，指语言使用者对于语言规则系统的潜在意识；performance“语言运用”，指在具体场景中语言的实际运用，二者对应的分别为“knows”和“does”。故选A。
第3题：

Texts are usually used in English classes for two main purposes: as a way of developing reading comprehension and as a way of learning new language.（）

正确答案:正确
第4题：

Two Cisco routers are connected to each other and are enabled CDP. Serial line is up，protocol is also up but cdp neighbor not working. What layer of the OSI model does the problem most likely exist？

正确答案:Data link layer.
第5题：

For what two purposes does the Ethernet protocol use physical addresses？（）
- A、to uniquely identify devices at Layer 2
- B、to allow communication with devices on a different network
- C、to differentiate a Layer 2 frame from a Layer 3 packet
- D、to establish a priority system to determine which device gets to transmit first
- E、to allow communication between different devices on the same network
- F、to allow detection of a remote device when its physical address is unknown
正确答案:A,E
第6题：

What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)
- A、to perform a label push operation
- B、to track the status of signaled LSPs
- C、to perform longest-match route lookups
- D、to reserve resources, such as labels and path information
正确答案:B,D
第7题：

多选题
For what two purposes does the Ethernet protocol use physical addresses? （）
A
Network A - 172.16.3.48/26
B
Network A - 172.16.3.128/25
C
Network A - 172.16.3.192/26
D
Link A - 172.16.3.0/30
E
Link A - 172.16.3.40/30
F
Link A - 172.16.3.112/30

正确答案： A,E
解析：暂无解析
第8题：

单选题
An administrator has setup three partitions using shared pool with 2 processing units. They are activated in the following sequence: Partition one: Min. = 1.0, max = 2.0, desired = 1.5 Partition two: Min. = 1.0, max = 2.0, desired = 1.0 Partition three: Min. = 0.1, max = 1.0, desired = 0.8. What is the outcome?（）
A
Partition one starts and has 2.0 processors allocated. Partition two does not start. Partition three does not start.
B
Partition one starts and has 1.0 processors allocated. Partition two starts and has 1.0 allocated. Partition three does not start.
C
Partition one starts and has 1.5 processors allocated. Partition two does not start. Partition three starts and has 0.8 processors allocated capacity.
D
Partition one starts and has 1.5 processors allocated. Partition two does not start. Partition three starts and has an allocated capacity of 0.5 processors.

正确答案： D
解析：暂无解析
第9题：

多选题
What are two purposes of the AS_PATH attribute?（）
A
route selection
B
loop avoidance
C
determining equal cost paths for reachablilty
D
defining the application of other BGP attributes

正确答案： A,B
解析：暂无解析
第10题：

多选题
For what two purposes does the Ethernet protocol use physical addresses？（）
A
to uniquely identify devices at Layer 2
B
to allow communication with devices on a different network
C
to differentiate a Layer 2 frame from a Layer 3 packet
D
to establish a priority system to determine which device gets to transmit first
E
to allow communication between different devices on the same network
F
to allow detection of a remote device when its physical address is unknown

正确答案： E,D
解析：暂无解析
第11题：

单选题
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
A
Overhead power lines
B
Louisiana-Mississippi ferry crossings
C
Two railroad trestles
D
Two submerged oil pipelines

正确答案： B
解析：暂无解析
第12题：

多选题
What are two purposes of a forwarding class?（）
A
to identify traffic that should be dropped
B
to classify traffic
C
to identify traffic that should receive common treatment
D
to assign traffic to output queues

正确答案： D,C
解析：暂无解析
第13题：

Teacher: After listening, answer the following two questions according to what you have heard on the tape.
(1) What is the relationship between the speakers?
(2) What are the speakers' attitudes towards each other?
What strategy does this listening activity help to train?

A．Inferring.
B．Listening for the gist.
C．Listening for details.
D．Dictation.

答案：A
解析：
考查听力教学。在听力训练中，教师让学生在听完录音后推测出说话人之间的关系以及对彼此的态度。从这两个问题可知，教师在训练学生的推理判断能力(inferring)。其他选项listeningfor gist“听主旨”，listening for details“听细节”。dictation“听写”．均不符合．
第14题：

What are two purposes of a forwarding class?（）
- A、to identify traffic that should be dropped
- B、to classify traffic
- C、to identify traffic that should receive common treatment
- D、to assign traffic to output queues
正确答案:C,D
第15题：

For what two purposes does the Ethernet protocol use physical addresses? （）
- A、Network A - 172.16.3.48/26
- B、Network A - 172.16.3.128/25
- C、Network A - 172.16.3.192/26
- D、Link A - 172.16.3.0/30
- E、Link A - 172.16.3.40/30
- F、Link A - 172.16.3.112/30
正确答案:A,E
第16题：

In what two ways does the Cisco SR 520 Secure Router complement the Cisco Smart Business Communications System？（）
- A、 stateful packet inspection firewall
- B、 10-Gigabit Ethernet connectivity
- C、 remote configuration of access points
- D、 guest access
- E、 Cisco Intrusion Prevention System
正确答案:D,E
第17题：

HSRP has been configured between two Company devices. What kind of message does an HSRP configured router send out every 3 seconds？（）
- A、 Retire
- B、 Coup
- C、 Resign
- D、 Send
- E、 Hello
正确答案:E
第18题：

What are two purposes of a forwarding class?（）
- A、to rewrite the ToS bits in the IP header
- B、to classify traffic
- C、to identify traffic that should receive commom treatment
- D、to assign traffic to output queues
正确答案:C,D
第19题：

单选题
HSRP has been configured between two Company devices. What kind of message does an HSRP configured router send out every 3 seconds？（）
A
Retire
B
Coup
C
Resign
D
Send
E
Hello

正确答案： C
解析：暂无解析
第20题：

单选题
Teacher: After listening, answer the following two questions according to what you have heard on the tape.(1) What is the relationship between the speakers?(2) What are the speakers’ attitudes towards each other?What listening strategy does this listening activity help to train? _____
A
inferring
B
gist listening
C
listening for details
D
dictation

正确答案： A
解析：
inferring“推断”；gist listening“要求抓主旨”；listening for details“侧重于细节”；dictation“听写”。在听力训练中，教师让学生在听完录音后推测出说话人之间的关系以及对彼此的态度。从这两个问题可知，教师在训练学生的inferring能力。
第21题：

多选题
What are two purposes of a forwarding class?（）
A
to rewrite the ToS bits in the IP header
B
to classify traffic
C
to identify traffic that should receive commom treatment
D
to assign traffic to output queues

正确答案： C,D
解析：暂无解析
第22题：

多选题
What are two purposes of the RSVP signaling protocol when configuring MPLS Label-Switched Paths (LSPs)? （）(Choose two.)
A
to perform a label push operation
B
to track the status of signaled LSPs
C
to perform longest-match route lookups
D
to reserve resources, such as labels and path information

正确答案： D,B
解析：暂无解析
第23题：

问答题
Two Cisco routers are connected to each other and are enabled CDP. Serial line is up，protocol is also up but cdp neighbor not working. What layer of the OSI model does the problem most likely exist？

正确答案： Data link layer.
解析：暂无解析
第24题：

单选题
What does the first letter require Ms. Walter to do?
A
Call the Customer Service Center
B
Send payment to the utilities firm
C
Review two bills from last year
D
Verify her account balance

正确答案： C
解析：
根据第2段第3句If by April 15…your residence可知信中要求Ms. Walter在4月15日之前缴纳费用，否则中断服务，故选B。

For what two purposes does the Ethernet protocol use physical addresses?（）A、to uniquely identify devices at Layer 2B、to allow communication with devices on a different networkC、to differentiate a Layer 2 frame from a Layer 3 packetD、to establish a priorit

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