Your company has two servers that run Windows Server 2008 named Server2 and Server3. Both servers have the DNS Server server role installed. Server3 is configured to forward all DNS requests to Server2. You update a DNS record on Server2. You need to ensure that Server3 is able to immediately resolve the updated DNS record. What should you do？（） ["Run the dnscmd . \/clearcache command on Server3.","Run the ipconfig \/flushdns command on Server3.","Decrease the Time-to-Live （TTL） on the Start of Authority （SOA） record of na.contoso.com to 15 minutes.","Increase the Retry Interval value on the Start of Authority （SOA） record of na.contoso.com to 15 minutes."]
刻板言语
柳宗元继郦道元之后，使（）成为一种独立的文学体裁。
一大型机械价值100万元，保险金额为90万元，在一次地震中完全破坏。若重置价值为80万元，则赔偿金额为（） ["100万元","90万元","80万元","85万元"]
怎样预防恶意代码？
李贺是中唐（）的代表诗人，又是从中唐到晚唐诗风转变的一个代表者。
