单选题In JUNOS software， which type of queue priority can lead to starvation in other queues？（）A highB real-timeC strict lowD strict high

第1题：

第2题：

What is the protocol of following described： there are 4 priority queues：high，medium，normal.low the high and medium queue have precedence over the default queue the classifcation is configuration via the command ‘priority-list’ the default queue is the normal queue.

第3题：

第4题：

Which statement is true about the components of a queuing mechanism？（）

• A、Each subinterface has its own hardware queue and can experience congestion just like its main interface
• B、Hardware queuing is only used if the software queues are experiencing congestion.
• C、Hardware queues and software queues are not used concurrently.
• D、The hardware queuing system always uses the FIFO queuing mechanism.

第5题：

pany uses GLBP to provide for router redundancy in the network.  Which describes the default  load balancing scheme used by the Gateway Load Balancing Protocol （GLBP）？（）

• A、 Per host basis using a strict priority scheme
• B、 Per session using a round-robin scheme
• C、 Per session using a strict priority scheme
• D、 Per GLBP group using a strict priority scheme
• E、 Per host basis using a round-robin scheme
• F、 Per GLBP group using a round-robin scheme

第6题：

第7题：

Which three QoS mechanisms can be configured to improve VoIP quality on a converged  network？（）

• A、The use of a queuing method that will give VoIP traffic strict priority over other traffic  
• B、The use of RTP header compression for the VoIP traffic.
• C、The proper classification and marking of the traffic as close to the source as possible
• D、The use of 802.1QinQ trunking for VoIP traffic
• E、The use of WRED for the VoIP traffic

第8题：

第9题：

When you decide on Campus QoS Design elements, which two statements correctly identify considerations to be taken into account?（）

• A、Voice needs to be assigned to the hardware priority queue.
• B、Voice needs to be assigned to the software priority queue.
• C、Call signaling must have guaranteed bandwidth service.
• D、Strict-priority queuing should be limited to 50 percent of the capacity of the link.

第10题：

What are the differences between LLQ and CBWFQ？（）

• A、LLQ supports the addition of strict priority queuing
• B、With LLQ， bandwidth allocations for the priority queue and all the CBWFQ queues areconfigured using the priority command
• C、LLQ is configured using MQC and CBWFQ is configured using the fair-queue command
• D、LLQ priority queue bandwidth is policed with a congestion aware policer
• E、LLQ does not support WFQ on the default traffic class （class-default）