You have a DNS server that runs Windows Server 2003 Service Pack 2 (SP2).The server contains two zones named nwtraders.com and contoso.com. Nwtraders.com is configured as an Active Directory-integrated zone. Contoso.com is configured as a standard primary zone. You discover that stale resource records are not being removed from contoso.com. Stale resource records are being removed from nwtraders.com.You need to ensure that stale resource records are automatically removed from contoso.com. What should you do?（） Enable aging and scavenging on the contoso.com zone. 。 Convert contoso.com to an Active Directory-integrated zone. 。 From the start of authority (SOA) record for contoso.com, change the refresh interval. 。 From the start of authority (SOA) record for contoso.com, change the TTL For This Record value.。
下列不属于选择钻孔设备考虑依据的是（）。 孔深。 孔径。 土质情况。 工期长短。
利率预期假说不能解释不同期限债券的利率往往是共同变动的这一经验事实。
What allows for a higher level of systems management capability that reduces the risk of changeas well as management and administrative costs？（） policy control。 active participation。 systems-level approach。 application and service optimizatio。
组合夹具是由一套预先制造好的（）组成的专用工具。 非标准元件。 标准元件。 导线。 光纤。
To provide efficient roaming between the cells， which percent of cell overlap is recommended for2.4 GHz and 5 GHz access points？（）
