请简述IP地址的分类方法，并说明什么是IP子网，划分IP子网有什么作用？
胎粪的排出在出生后12小时，为墨绿色，喂奶后很块转为含奶块的金黄色，若24小时不见胎粪排出，要警惕（）畸形。 酶系统。 泌尿系统。 呼吸道。 消化道。
You develop a Windows Communication Foundation (WCF) service that employees use to access bonus information.You define the following service contract. (Line numbers are included for reference only.) 01 [ServiceContract(SessionMode = SessionMode.Required)] 02 public interface IFinancialService 03 { 04 [OperationContract] 05 string Login(int employeeID, string passwordHash); 06 07 [OperationContract] 08 double GetBonus(int month); 09 10 [OperationContract(IsTerminating = true)] 11 void Logout(); 12 } Client application can invoke methods without logging in. You need to ensure that the client applications invoke Login before invoking any other method. You also need to ensure that client applications cannot consume the service after invoking Logout. Which two action should you perform? （）(Each correct answer presents part of the solution. Choose two.)。 Replace line 04 with the following code. [OperationContract(IsInitiating = false)]。 Replace line 04 with the following code. [OperationContract(IsInitiating = true, IsTerminating = true)]。 Replace line 07 with the following code. [OperationContract(IsInitiating = false)]。 Replace line 10 with the following code. [OperationContract(IsInitiating = false, IsTerminating = true)]。
Your company uses DHCP to lease IPv4 addresses to computers at the main office. A WAN link connects the main office to a branch office. All computers in the branch office are configured with static IP addresses. The branch office does not use DHCP and uses a different subnet. You need to ensure that the portable computers can connect to network resources at the main office and the branch office. How should you configure each portable computer？（） Use a static IPv4 address in the range used at the branch office.。 Use an alternate configureation that contains a static IP address in the range used at the main office。 Use the address that was assigned by DHCP as a static IP address。 Use an alternate configuration that contains a static Ip address in the range used at the branch office.。
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Contoso, Ltd. has an Active Directory domain named ad.contoso.com. Fabrikam, Inc. has an Active
Directory domain named intranet.fabrikam.com.
Fabrikams security policy prohibits the transfer of internal DNS zone data outside the Fabrikam network.
You need to ensure that the Contoso users are able to resolve names from the intranet.fabrikam.com domain.
What should you do（）
