1、When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.()(单选题)
A. PIM sparse - dense
B. Bidir - PIM
C. PIM - RP
D. PIM - DM
E. PIM - SM
试题答案:D
2、On a Cisco Catalyst switch, which configuration command is used to apply a VACL named "test"to filter the traffic within VLAN100? ()(单选题)
A. interface vlan 100 ip access-group test
B. interface vlan 100 ip access-group test in
C. interface vlan 100 ip access-group test out
D. vlan filter test vlan-list 100
E. vlan access-map test 100
试题答案:D
3、关于锌缺乏的描述,错误的是()(单选题)
A. 长期摄入谷类食物的小儿易出现锌缺乏
B. 血清锌低于正常可以作为缺锌的可靠指标
C. 毛发锌低于正常仅作为慢性缺锌的参考指标
D. 植物中的锌含量高于动物中的锌含量
E. 长期锌缺乏可导致免疫功能低下
试题答案:D
4、患儿男,4岁。足月顺产,因面色苍白、进食少、精神差入院,主诉心悸,气促,经查体T36.8℃,P120次/分,R32次/分,叩诊心区扩大,实验室检查RBC2.9×10/L,Hb65g/L,MCV68fl,MCH16.8pg,MCHC24.6/L,针对该患者的病情,最紧急的护理措施是()(单选题)
A. 合理安排饮食
B. 补充铁剂
C. 适当安排休息和活动
D. 预防感染
E. 防治心力衰竭
试题答案:E
5、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?()(多选题)
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.
试题答案:E,F
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