Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by incre

题目

Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by increasing the(73)from a 128Kbps circuit to a THowever, three other components of delay, routing/switching deiay, distance delay, and protocol delay are components that can not be positively affected by an(74)in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the(75)of the application will only result in an increased bandwidth with no positive effects on performance.

A．buffering

B．queuing

C．receiving

D．timing

相似考题

1.● Serialization delay and （71） delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the （72） on the wire, and queuing delay (depth of the queue) are improved by increasing the （73） from a 128Kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an （74） in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the （75） of the application will only result in an increased bandwidth with no positive effects on performance.

2.网络的延迟（delay）定义了网络把数据从一个网络节点传送到另一个网络节点所需要的时间。网络延迟包括（）。A、传播延迟（propagation delay）B、交换延迟（switching delay）C、介质访问延迟（access delay）D、队列延迟（queuing delay）

3.What is the best description of serialization delay？（）A、the time it takes for a Layer 3 switch or a router to switch a packet from an inbound interface to the queue of the outbound interfaceB、the time it takes for a propagate from source to destinationC、the time it takes to place a frame on the physical medium for transportD、the time a packet resides in the outbound queue of a router

4.WhichparameterorparametersareusedtocalculateOSPFcostinciscorouters?()A.Bandwidth，Delay，andMTUBB.andwidthC.BandwidthandMTUD.Bandwidth，MTU，Reliability，Delay，andLoad

更多“Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by incre”相关问题

第1题：

在STR12-280机器人例程中，执行程序指令（）后可实现延时2.5s。
- A、delay_ms（25）；
- B、delay_ms（250）；
- C、delay_ms（2500）；
- D、delay_ms（25000）；
正确答案:C
第2题：

What are two ways to minimize the delay of VoIP packets that are traversing a network？（）
- A、Use WFQ， CBWFO， and LLO to prioritize delay-sensitive packets
- B、Use WFO， CBWFO， and LLO to compress the payload.
- C、Give TCP packets priority over UDP packets.
- D、Use control plane policing for cRTP queuing.
- E、Use stacker and predictor to compress the payload.
正确答案:A,E
第3题：

Queuing delay编队延迟

正确答案: 在包交换网络中漫游的包必须在包交换中等待的总的时间。编队延迟与网络中的拥塞程度有关，当没有其它的包发送时，编队延迟为零。
第4题：

设置主接口由Up转Down后延迟30秒切换到备份接口，主接口由Down转Up后60秒钟切换回主接口的配置为（）
- A、backup 30 60
- B、backup delay 30 60
- C、backup delay 60 30
- D、backup delay enable-delay 30 disable-delay 60
正确答案:D
第5题：

Which two statements about the best effort model for QoS are true？（）
- A、delay sensitive packets are given preferential treatment
- B、the default policy identifies a delay sensitive class and default class
- C、the default policy identifies a delay sensitive class， best effort class， and default class
- D、the model is highly scalable
- E、the model is still predominant on the internet F the model provides guaranteed service
正确答案:D,E
第6题：

Which two statements are true about the application of QoS in a converged network？（）
- A、end-to-end network delay times that exceed 50 ms for real-time traffic are considered unacceptable
- B、end-to-end network delay times that exceed 250 ms for real-time traffic are considered unacceptable
- C、end-to-end network delay is not a factor as long as the delay is consistent
- D、some packet loss can be corrected by codec algorithms
- E、RSVP handles voice packet retransmission
- F、fragmentation is a result of packet loss
正确答案:B,D
第7题：

QoS refers to the ability of a network to provide improved service， over various underlying technologies， to select network traffic. Which two traits are inherent to QoS？（）
- A、 reference to network ability to provide improved service to all network traffic
- B、 reduction in delay， jitter， and packet loss
- C、 equal handling of all packets
- D、 support for real-time applications
- E、 best-effort actions
正确答案:A,B
第8题：

设置主接口由Up转Down后延迟30秒切换到备份接口，主接口由Down转Up后60秒钟切换回主接口的配置为（）
- A、backup 3060
- B、backup delay3060
- C、backup delay6030
- D、backup delay enable-delay 30 disable-delay 60
正确答案:D
第9题：

多选题
Which two statements are true about the application of QoS in a converged network？（）
A
end-to-end network delay times that exceed 50 ms for real-time traffic are considered unacceptable
B
end-to-end network delay times that exceed 250 ms for real-time traffic are considered unacceptable
C
end-to-end network delay is not a factor as long as the delay is consistent
D
some packet loss can be corrected by codec algorithms
E
RSVP handles voice packet retransmission
F
fragmentation is a result of packet loss

正确答案： E,A
解析：暂无解析
第10题：

问答题
Practice 1　　● Recently, your company has received a letter complaint concerning the delay of an order. As the manager of the Department of Customer Service, you are to handle this.　　● Write the letter to the customer:　　● explaining the reason for the delay,　　● apologizing for the delay,　　● offering some measures to make up for the delay.

正确答案：【参考范文】
Dear Mr. Green,
We have received your letter with respect to the delay of the order dated Oct.24, 2012, and on behalf of our company I would like to express our apologies to you.
As a matter of fact, we have sent commodities on time in line with our contract. However, there was something wrong with the shipment. Owing to the bad weather, the shipment has been greatly postponed. At the moment, even though we took urgent measures to make up for the delay, the consequence was still unsatisfactory.
Since being informed about the delay in delivery, we were quickly aware that this would give rise to great inconvenience and trouble for you, which would have a negative effect not only on the sales, but also on your customer relations and your company’s fame. As a result, our company is willing to take the responsibility and do all we can to make up your losses. In order to compensate for this order, our company offer 10% off the freight in delivery. Although we would endure a big loss, that would not be a problem with us. In addition, we will find some backups in case transportation fails again.
All in all, we have paid our immediate attention to this matter and given promise that everything will return to normal. We hope this matter will not influence the cooperation between you and us.
I do hope that you will accept our apologies.
Yours sincerely,
Will Smith
解析：暂无解析
第11题：

名词解释题
Queuing delay编队延迟

正确答案：在包交换网络中漫游的包必须在包交换中等待的总的时间。编队延迟与网络中的拥塞程度有关，当没有其它的包发送时，编队延迟为零。
解析：暂无解析
第12题：

多选题
What are two major sources of delay that can be managed by QoS in voice-enabled networks？（）
A
propagation delay
B
voice packet serialization delay
C
congested egress queues
D
header overhead
E
packets dropped because of CRC errors

正确答案： B,E
解析：暂无解析
第13题：

What is jitter？（）
- A、The total end-to-end delay
- B、The variations of delay.
- C、The delay caused by placing the bits on the wire.
- D、The time it takes for the bits to transit the physical media.
正确答案:B
第14题：

You work as a network technician at. Your boss， Mrs. ， is interested in the Spanning Tree Protocol timers. What can you tell her regarding the default STP timers？（）
- A、The hello time is 5 seconds.
- B、The forward delay is 10 seconds.
- C、The hello time is 2 seconds.
- D、The forward delay is 15 seconds
- E、The max_age timer is 15 seconds.
- F、The hello time is 10 seconds.
- G、The max_age timer is 20 seconds.
- H、The forward delay is 20 seconds.
- I、The max_age timer is 30 seconds.
正确答案:C,D,G
第15题：

关于过渡动画的延迟效果，设置正确的是（）。
- A、transition-delay：none；
- B、transition-delay：0.3s；
- C、transition-delay：-1s；
- D、transition-delay：500ms；
正确答案:B,D
第16题：

延误（delay）

正确答案: 指车辆在行驶中，由于受驾驶人无法控制的或意外的其他车辆的干扰或交通控制设施等的阻碍所损失的时间。
第17题：

Which three statements about end-to-end delay are true？（）
- A、End-to-end delay is the sum of propagation delays，processing delays，serialization delays，and queuing delays.
- B、Coast-to-coast end-to-end delay over an optical link is about 20 ms.
- C、Processing delay depends on various factors，which include CPU speed，CPU utilization，IP switching mode， and router architecture.
- D、Propagation and serialization delays are related to the media.
- E、Propagation delay is the time it takes to transmit a packet and is measured in bits-per-second （bps）.
- F、Serialization delay is the time it takes for a router to take the packet from an input interface and put it into the output queue of the output interface.
正确答案:A,C,D
第18题：

What are two major sources of delay that can be managed by QoS in voice-enabled networks？（）
- A、propagation delay
- B、voice packet serialization delay
- C、congested egress queues
- D、header overhead
- E、packets dropped because of CRC errors
正确答案:C,D
第19题：

What are two ways to minimize the delay of VoIP packets that are traversing a network？（）
- A、 Use WFQ， CBWFQ， and LLQ to prioritize delay-sensitive packets.
- B、 Use WFQ， CBWFQ， and LLQ to compress the payload.
- C、 Give TCP packets priority over UDP packets.
- D、 Use control plane policing for cRTP queuing.
- E、 Use stacker and predictor to compress the payload.
正确答案:A,E
第20题：

Adobepremiereprocs3中，声音特效主要有（）
- A、Echo、Delay、Mixture
- B、Fade、Delay、Mixture
- C、Echo、Fade、Delay
- D、Echo、Delay
正确答案:A
第21题：

多选题
Which three statements about end-to-end delay are true？（）
A
End-to-end delay is the sum of propagation delays， processing delays， serialization delays， and queuing delays.
B
Coast-to-coast end-to-end delay over an optical link is about 20 ms.
C
Processing delay depends on various factors， which include CPU speed， CPU utilization， IP switching mode， and router architecture.
D
Propagation and serialization delays are related to the media.
E
Propagation delay is the time it takes to transmit a packet and is measured in bits-per-second （bps）.
F
Serialization delay is the time it takes for a router to take the packet from an input interface and put it into the output queue of the output interface.

正确答案： A,B
解析：暂无解析
第22题：

单选题
What is the best description of serialization delay？（）
A
the time it takes for a Layer 3 switch or a router to switch a packet from an inbound interface to the queue of the outbound interface
B
the time it takes for a propagate from source to destination
C
the time it takes to place a frame on the physical medium for transport
D
the time a packet resides in the outbound queue of a router

正确答案： C
解析：暂无解析
第23题：

单选题
What is jitter？（）
A
The total end-to-end delay
B
The variations of delay.
C
The delay caused by placing the bits on the wire.
D
The time it takes for the bits to transit the physical media.

正确答案： D
解析：暂无解析

Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by incre

题目

相似考题

更多“Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by incre”相关问题

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