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Routers R1 and R2 are configured for HSRP as shown below：
Router R1：
interface ethernet 0
ip address 20.6.2.1 255.255.255.0
standby 35 ip 20.6.2.21
standby 35 priority 100
interface ethernet 1
ip address 20.6.1.1.2 255.255.255.0
standby 34 ip 20.6.1.21
Router R2：
interface ethernet 0
ip address 20.6.2.2 255.255.255.0
standby 35 ip 20.6.2.21
interface ethernet 1
ip address 20.6.1.1.1 255.255.255.0
standby 34 ip 20.6.1.21
standby 34 priority 100
You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）

变压器差动不平衡电流是怎样产生的？ You are creating a Windows Communication Foundation (WCF) service that is implemented as follows. (Line numbers are included for reference only.) 01 [ServiceContract] 02 [ServiceBehavior(IncludeExceptionDetailsInFaults = true)] 03 public class OrderService 04 { 05 [OperationContract] 06 public void SubmitOrder(Order anOrder) 07 { 08 try 09 { 10 ... 11 } 12 catch(DivideByZeroException ex) 13 { 14 ... 15 } 16 } 17 } You need to ensure that the stack trace details of the exception are not included in the error information sent to the client. What should you do?（） Replace line 14 with the following line: throw;。 Replace line 14 with the following line: throw new FaultException(anOrder, ex.ToString());。 After line 05, add the following line: [FaultContract(typeof(FaultException))] Replace line 14 with the following line: throw ex;。 Alter line 05, add the following line: [FaultContract(typeof(FaultException))] Replace line 14 with the following line: throw new FaultException(anOrder, "Divide by zero exception"); 。 Your network consists of a single Active Directory forest that contains a root domain and two child domains. All servers run Windows Server 2008 R2.  A corporate policy has the following requirements：   èAll local guest accounts must be renamed and disabled. èAll local administrator accounts must be renamed.   You need to recommend a solution that meets the requirements of the corporate policy. What should you recommend？（） Implement a Group Policy object（GPO） for each domain.。 Implement a Group Policy object（GPO） for the root domain.。 Deploy Network Policy and Access Services（NPAS）on all domain controllers in each domain. 。 Deploy Active Directory Rights Management Services（AD RMS）on the root domain controllers.。 A server named DC1 has the Active Directory Domain Services （AD DS） role and the Active Directory Lightweight Directory Services （AD LDS） role installed.  An AD LDS instance named LDS1 stores its data on the c： drive.  You need to relocate the LDS1 instance to the D： drive.  Which three actions should you perform in sequence（） A。 B。 C。 D。 E。 F。 从众行为倾向

Routers R1 and R2 are configured for HSRP as shown below：
Router R1：
interface ethernet 0
ip address 20.6.2.1 255.255.255.0
standby 35 ip 20.6.2.21
standby 35 priority 100
interface ethernet 1
ip address 20.6.1.1.2 255.255.255.0
standby 34 ip 20.6.1.21
Router R2：
interface ethernet 0
ip address 20.6.2.2 255.255.255.0
standby 35 ip 20.6.2.21
interface ethernet 1
ip address 20.6.1.1.1 255.255.255.0
standby 34 ip 20.6.1.21
standby 34 priority 100
You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）