CMS专题
多选题What are two QoS mechanisms that are used to prevent packet loss？（）Aheader compressionBpayload compressionClow latency queuing （LLQ）Dweighted random early detection （WRED）Etraffic policingFtraffic shaping
题目
header compression
payload compression
low latency queuing （LLQ）
weighted random early detection （WRED）
traffic policing
traffic shaping
相似问题和答案
第1题：
What field in IP packet is used for classification by QOS？
正确答案:TOS byte.
第2题：
What is used to provide read access to QoS configuration and statistics information on Cisco platforms thatsupport Modular QoS CLI （MQC）？（）
- A、Cisco NBAR Discovery
- B、Cisco AutoQoS
- C、Cisco Class-Based QoS MIB
- D、Cisco SDM QoS Wizard
- E、CDP
正确答案:C
第3题：
A.a packet of prawn
B.two packets of prawn
C.a packet of prawns
第4题：
What is the goal of QoS in a network？ （）
- A、prevent packets from being dropped
- B、increase available bandwidth
- C、reduce hardware errors
- D、provide predictable network service
- E、eliminate propagation delay
- F、eliminate jitter and packet loss
正确答案:D
第5题：
What are two things that an access point （AP） does when it receives an 802.11 frame from a Wi-Fi Multimedia （WMM） client？ （）
- A、EAP-FASTEAP-FAS Access Point Protocol （LWAPP） packet is used to generate an 802.1 p priority value in the packets， which are sent to an Ethernet switch by the controllers.
- B、The AP will police the 802.1 le priority value to ensure it does not exceed the maximum value allowed for the QoS policy that is assigned to that client.
- C、Once the LWAPP packet is received， the AP generates the IEEE 802.1 p priority value.
- D、The AP will map the 802.11e priority value to the DSCP value.
- E、The AP will map the DSCP value to the outer LWAPP frame.
正确答案:B,D
第6题：
What are the two benefits of any intelligent network that uses a systems-level approach to integrate applications and services across an infrastructure？（）
- A、 reduce complexity
- B、 reduced costs for all types of users
- C、 packet inspection at wire speed
- D、 QoS to the desktop
- E、 LAN encryption services
正确答案:A,B
第7题：
What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）
- A、Centrex
- B、Packet encryption
- C、Intelligent call routing
- D、QoS
正确答案:D
第8题：
Which statement about two lines spliced together is TRUE ________．
A.Splicing is used to increase the circumference of each line
B.Splicing two lines together is stronger than knotting two lines together
C.Splicing is used to increase the overall strength of the line
D.Splicing is used to prevent rotting of the lines bitter end
第9题：
QoS Mechanisms：问在部署QoS中要用的3个mechanisms是什么？
正确答案: Best Effort service
Integrated service
Differentiated service
第10题：
What are two characteristics of the DiffServ model？（）
- A、service guarantee
- B、traffic that is divided into classes
- C、not scalable to large implementations
- D、QoS mechanisms that are used without prior signaling
- E、applications that signal their particular QoS and bandwidth requirements
正确答案:B,D