You work as a database administrator for Certkiller .com. You have set the retention period for Automatic Repository （AWR） statistics to four days and collection interval to 15 minutes. You want to view the statistics collected and stored in AWR snapshot. Which two methods would you use to view the AWR statistics？（）
Ause enterprise manager
Buse DBMS_SQL package
Cuse DBMS_AWR package
Duse PRVT_WORKLOAD package
Equery the AWR snapshot repository objects
Fuse DBMS_WORKLOAD_REPOSITORY package
患者，女性，28岁，咳嗽两个月，干咳为主，有午后低热，月经不规律。胸片示右上肺淡片状阴影。为进行诊断，进行了PPD试验。关于PPD试验结果的判断，下列哪项是正确的（）
A、硬结直径≤5mm为阳性
B、硬结直径5～9mm为阳性
C、硬结直径≤10mm为阳性
D、硬结直径10～19mm为阳性
E、局部有水疱为阳性
盘必须存放在远离电视机、监视器等地方，因为这些物体能够产生—定的（）。
A、电场
B、磁场
C、灰尘
D、温度
Samba服务器的配置文件是（）。
A、httpD.conf
B、netD.conf
C、rC.d
D、D.mconf
在快速交付重用于准确交付的应用中（如语音、视频应用）有广泛的传输层协议是（）。
A、TCP
B、UDP
C、IP
D、ICMP
During Company.com planning session，Company.com presents the details of the current Network design. The network design serves four separate company facilities， each on as separate subnet. As part of a disaster recovery plan， the customer is evaluating the use of HACMP. Specifically， the have reviewed IPAT via IP aliasing and are questioning the number of IP subnets required. Given the customer’s current configuration，what is the recommended minimum number of IP subnets that would be required？（）
A、 4
B、 5
C、 6
D、 8