1、应使家属了解该儿已接种的疫苗是( )。(单选题)
A. 卡介苗、乙肝疫苗
B. 乙型脑炎疫苗
C. 麻疹减毒活疫苗
D. 百、白、破混合疫苗
E. 脊髓灰质炎减毒活疫苗
试题答案:A
2、会造成“灰婴综合征”的药物是( )。(单选题)
A.
B.
C.
D.
E.
试题答案:B
3、For the network 192.0.2.0/23, which option is a valid IP address that can be assigned to a host?()(单选题)
A. 192.0.2.0
B. 192.0.2.255
C. 192.0.3.255
D. 192.0.4.0
试题答案:B
4、Quidway系列路由器在执行数据包转发时,下列哪些项没有发生变化(假定没有使用地址转换技术)?()(多选题)
A. 源端口号
B. 目的端口号
C. 源网络地址
D. 目的网络地址
E. 源MAC地址
F. 目的MAC地址
试题答案:A,B,C,D
5、Workstation A has been assigned an IP address of 192.0.2.24/28.Workstation B has been assigned an IP address of 192.0.2.100/28.The two workstations are connected with a straight-through cable.Attempts to ping between the hosts are unsuccessful. What two things can be done to allow communications between the hosts? ()(多选题)
A. Replace the straight-through cable with a crossover cable
B. Change the subnet mask of the hosts to /25
C. Change the subnet mask of the hosts to /26
D. Change the address of Workstation A to 192.0.2.15
E. Change the address of Workstation B to 192.0.2.111
试题答案:A,B
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