单选题During Company.com planning session，Company.com presents the details of the current  Network design. The network design serves four separate company facilities， each on as separate subnet. As part of a disaster recovery plan， the customer is evaluating

第1题：

A Company.com developer is designing the presentation tier for a web application that relies on a complex session bean. The session bean is still being developed and the APIs for are NOT finalized. Any changes to the session bean API directly impacts the development of the presentation tier.  Which design pattern provides a means to manage the uncertainty in the API？（）

• A、 View Helper
• B、 Front Controller
• C、 Composite View
• D、 Intercepting Filter
• E、 Business Delegate
• F、 Chain of Responsibility

第2题：

During Company.com planning session，Company.com presents the details of the current  Network design. The network design serves four separate company facilities， each on as separate subnet. As part of a disaster recovery plan， the customer is evaluating the use of HACMP. Specifically， the have reviewed IPAT via IP aliasing and are questioning the number of IP subnets required.  Given the customer’s current configuration，what is the recommended minimum number of IP subnets that would be required？（）

• A、 4
• B、 5
• C、 6
• D、 8

第3题：

第4题：

Company.com has several network adapters configured as backup paths using the Virtual IP Addressing and dynamic routing of AIX. A second node needs to be added to the environment to crate a cluster. What considerations must be addressed during the planning session？（）  

• A、 HACMP supports most types of networks，including Virtual IP Addressing by AIX.
• B、 If HACMP IP aliasing is used，the devices may be the Virtual IP type used by AIX.
• C、 Using the AIX Virtual IP Addressing scheme HACMP can provide near fault tolerant availability of the network.
• D、 The AIX Virtual Addressing mechanism is not supported by HACMP，but a similar configuration can be created in HACMP.

第5题：

During Company.com planning session， the LVM requirements for HACMP are provided. The administrator explains that there are five volume groups in the current production environment because filesystems constantly change due to the nature of the business. Maintenance outages are limited to one Saturday per month. There is some concern about the amount of time that will be required for outages once HACMP is installed.  With HACMP，what will be the simplest methods of managing LVM changes while minimizing required downtime.（）  

• A、 Make changes and allows Lazy Update to sync the changes later.
• B、 Use the Cluster Single Point Of Control to manage LVM changes.
• C、 Use exportvg on the primary node and improtvg on the second node.
• D、 Set up a local NFS cross-mount， and use the local filesystem until the outage.

第6题：

Users are reporting problems connecting to servers in the remote company.com domain. The administrator suspects this to be a DNS problem. Which of the following commands would the administrator run to identify the DNS server of the remote company.com?（）

• A、dig company.com ns
• B、ipconfig/all
• C、ifconfig-a
• D、dig company.com mx

第7题：

Company.com with an EtherChannel implementation is considering an HACMP solution. What considerations must be addressed in planning this configuration？（）  

• A、 Hardware address takeover must be configured.
• B、 IPAT via IP aliasing is required for EtherChannel.
• C、 EtherChannel must be defined as a separate network.
• D、 HACMP does not support the fallover of EtherChannel.

第8题：

During a planning meeting， Company.com indicates that they intend to make a relational  Database highly available. The application has a pre-requisite that a kernel extension be loaded from /etc/inittab.  How would this be managed in an HACMP environment？（）  

• A、 It can be started with a crontab entry.
• B、 It can be created as an Application Server.
• C、 It can be added to a resource group as a dependency.
• D、 It cannot be done because HACMP provides no method to order application start/stop scripts.

第9题：

During Company.com planning session， the network administrator discusses the requirements of having a persistent MAC address associated with the IP Service address.  How can this be accomplished using HACMP？（）  

• A、 Enable routed to handle dynamic route creation.
• B、 Use IPAT via IP aliasing and define the required MAC address.
• C、 Add the Service IP Label to the /etc/cluster/ping_client_list.
• D、 Use IPAT via IP replacement and define the required MAC address.

第10题：

During Company.com planning session， the discussion focuses on how the IP connections are  Managed after a cluster node failure. This is critical for the business since their production application is a Lotus Domino solution requiring multiple IP addresses and recovery time is critical.  What type of IPAT implementation would best address these requirements？（）  

• A、 IPAT via IP aliasing
• B、 IPAT via IP replacement
• C、 IPAT via IP aliasing using HWAT
• D、 IPAT via IP replacement using HWAT