To provide quality of service （QoS） for voice traffic in an 

第1题：

Which two QoS statements are true about the use of the SDM QoS wizard？（）

• A、Business-critical traffic includes VoIP and voice signaling packets.
• B、SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces and IPsec tunnels.
• C、SDM can provide QoS for real-time traffic and business-critical traffic.
• D、SDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policy.
• E、SDM creates a low latency queuing （LLQ） service policy with its associated classes.
• F、When allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）.

第2题：

What are two benefits of control plane policing？（）

• A、protection against denial of service （DoS） attacks at infrastructure routers and switches
• B、 protection against known worm attacks in routers and switches
• C、quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches
• D、quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches
• E、quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switches

第3题：

第4题：

If voice and data traffic will be sent and received via a WAN links， what must be configured to provide a certain amount of dedicated bandwidth and to prioritize the voice traffic over other types of network traffic？（）

• A、IPSec VPN
• B、QoS mechanism
• C、Firewall
• D、NAT
• E、EIGRP routing protocol
• F、Static routing

第5题：

To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）

• A、The PRI field should contain the Cos value of 010
• B、The PRI field should contain the Cos value of 011
• C、The PRI field should contain the Cos value of 100
• D、The PRI field should contain the Cos value of 101
• E、The PRI field should contain the Cos value of 110
• F、The PRI field should contain the CoS value of 111

第6题：

What two steps need to be taken in deploying AutoQoS for enterprise on routers？（）

• A、provide visibility into the classes of service deployed using system logging and SNMP traps
• B、determine WAN settings for fragmentation， compression， encapsulation， and Frame Relay-ATM interworking
• C、enable the AutoQoS VoIP for voice traffic
• D、generate and deploy MQC-based QoS policies
• E、profile the traffic with Auto-Discovery

第7题：

The Company is rolling out Cisco’s Architecture for Voice， Video and Integrated Data （AVVID）.   Which of the following choices represent the fundamental intelligent network services in Cisco’s  AVVID？ （）

• A、 Quality of Service （QoS）
• B、 Intelligent platforms
• C、 Mobility and scalability
• D、 Security
• E、 High availability

第8题：

What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）

• A、 Call Management Link Agent
• B、 Traffic policing
• C、 Call Admission Control
• D、 QoS Link Congestion Management
• E、 Oversubscription Link Detection

第9题：

The Cisco SDM will create a QoS policy that provides services to two types of traffic. Which two statements indicate the default QoS parameters that are created by SDM？（）

• A、 Business-critical traffic will be sorted into two QoS classes.
• B、 Real-time traffic will be sorted into one QoS class.
• C、 Voice traffic will be considered real-time traffic while call signaling will be considered business-critical.
• D、 All traffic except real-time will be considered best-effort.
• E、 Routing， management， and transactional traffic will be considered business-critical.
• F、 Voice and call signaling traffic will be considered real-time.

第10题：

Your Service Provider does not support Link Fragmentation and Interleave, but upstream serialization delay on your broadband link is affecting voice quality. Which two mitigation strategies are viable?（）

• A、Upgrade your residential broadband service to at least 768kbps uplink.
• B、Switch your home router to use PPP encapsulation.
• C、Use the ip tcp adjust-mss interface command.
• D、Employ QoS techniques to drop large data packets.
• E、Use traffic shaping to interrupt large data packets.