A. Hardware address takeover must be configured.B. IPAT……

单项选择题Continuous availability is required for an application in a two-node cluster. There is one rotating resource group in the cluster， and the nodes are identical machines. Client telnet connections to the application cannot be broken because it takes 20 to 30 minutes to recycle the client workstations and transactions will be lost.  What configuration best provides continuous connectivity to the application？（）

A. IPAT using IP Replacement without MAC address takeover.
B. IPAT using IP Aliasing and hardware MAC address takeover.
C. None because continuous telnet connectivity cannot be provided with HACMP.
D. Shared service IP address assigned to multiple network interface cards on each node.

单项选择题Company.com wishes to use IPAT via IP replacement in a two-node mutual cluster. Each node  has two Ethernet 10 100 1000 adapters. Throughout the planning session，the customer has asked questions about subnet and VLAN requirements for the intended network topology.  Which of the following best describes the network requirements？（）

A. The service IP addresses must be on a separate subnet and VLAN.
B. The non-service and service IP addresses must be on the same subnet and on the same VLAN.
C. All interfaces on a node must be in different subnets. All subnets must be on the same VLAN. 
D. One non-service and one service IP address must be on the same logical subnet. All interfaces must be on the same VLAN.

单项选择题An enterprise has three nodes： -Node ’A’ is a production database， -Node ’B’ is a production  Application server， and -Node ’C’ is a test and development node. Node ’C’ is used by six programmers to develop and the production application as business critical and would like to make it highly available with HACMP. Application development and testing is not business critical.  Which of the following describes the best solution？（）

A. There is not an adequate solution because HACMP should not be configured in this environment without a dedicated standby node.
B. Nodes ’A’ and ’B’ should be configured in a cluster with mutual fallover of two cascading resource groups to provide both nodes will deliver acceptable response time with both resource groups.
C. Nodes ’A’ and ’C’ should be configured in one cluster， and Nodes ’B’ and ’C’ in another cluster to prevent both the database and application server from falling over to Node ’C’ at the same time.
D. Nodes ’A’， ’B’， and ’C’ should be configured in a cluster with Node ’C’ the hot standby for both the database and application server resource groups. Workload Manager （WLM） must be configured on database and application developers from over utilizing the CPU resources.

单项选择题During a planning session， Company.com expresses concern about the behavior of the nodes  When HACMP is installed. Once department is reliant on an older piece of equipment that is critical to operations and must communicate to the database server. Previous network changes indicated that this piece of equipment does not support gratuitous ARP.  How can HACMP best incorporate this restriction into the cluster design？（）

A. The administrator must use Hardware Address Take over with HACMP.
B. The clsmuxpd process and the contents of the /etc/cluster/ping_client_list can address the issue.
C. HACMP does not have any facility to be compatible with older devices that have limited capabilities.
D. HACMP can use either hardware address take over，or clinfo can update the arp cache of the clients when an adapter event occurs.

单项选择题Company.comhasanapplicationthatrequiresaserialconnectionforElectronicDataInterchange.WhatmustbedonetointegratortheserialconnectionintoanHACMPcluster？（）

A. Use an RS3232/422 serial Y cable.
B. Alter the device settings to 9600 8/n/1 xon/xoff.
C. Use a network based terminal server for the serial connection.
D. Nothing because HACMP does not support native serial connection fallovers.