单选题A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover?()A Disk should be mirrored across separate storage enclosures.B Disk heartbeats should be added over multiple disk adapters.C Disk major and minor numbers should be set as unique across nodes.D Disk adapter queue_depth should be increased from the default values.

单选题
A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover?()
A

 Disk should be mirrored across separate storage enclosures.

B

 Disk heartbeats should be added over multiple disk adapters.

C

 Disk major and minor numbers should be set as unique across nodes.

D

 Disk adapter queue_depth should be increased from the default values.


参考解析

解析: 暂无解析

相关考题:

When configuring a single SRX210 as a firewall enforcer to a MAG4610 active/passive cluster, which statement supports a fault-tolerant configuration?() A. The cluster VIP is defined on the MAG4610 cluster, and the VIP of the cluster is defined as an instance on the SRX Series device.B. The cluster VIP is not defined on the MAG4610 cluster, and the IP address of both the active and passive nodes of the cluster are defined as separate instances on the SRX Series device.C. The cluster VIP is defined on the MAG4610 cluster, and the IP address of the active node is defined as an instance on the SRX Series device.D. The cluster VIP is not defined on the MAG4610 cluster, and the IP address of the passive node is defined as an instance on the SRX Series device.

A two-node cluster is attached via SAN to shared disk. The customer has requested that one of  the nodes be moved to another room 300 feet away. However, this distance exceeds the length specified by the RS232 specifications.  What solution would resolve the RS232 specification issue with the fewest additional components?()A、 Target mode fiber channel can be used with a SAN solution.B、 The heartbeat could be established by using a disk heartbeat.C、 An RS232 line driver can be used to extend the existing serial connection.D、 The NIM for the serial connection can be altered to compensate for the additional delay caused by the increased distance.

Company.com with a newly installed cluster has been checking the logfiles to determine if the  cluster has had any recent activity. The non-IP RS232 heartbeat connection seems to be having a difficulty. The serial network goes down,and then a couple of minutes later comes back up again. This pattern is repeated many times in the log.  If this system was installed without regard to best practices, what is the most likely problem with the serial network?()  A、 The serial port is malfunctioning and needs to be repaired.B、 The baud rate is incorrectly specified in the AIX devices configuration.C、 The serial port is not a port approved to support HACMP heartbeat traffic.D、 The baud rate is incorrectly specified in the HACMP interface configuration.

While performing a site survey to document the existing environment before implementing a new HACMP cluster, it was discovered that a port filtering firewall was being used to protect the production system. The plan is to continue using the firewall and add a second firewall to avoid a single point of failure. Each node in the two-node cluster will have all of its network adapters connected to the firewalls, and all connections to the nodes will pass through these firewalls.  What must be considered about HACMP in a firewall environment?()  A、 Firewalls are not supported in a HACMP environment.B、 HACMP uses only TCP/IP so firewalls are not relevant.C、 Specific ports must be open for HACMP communications.D、 Dynamic routing must be used to properly route packets in a firewall-protected environment.

The IP subsystem fallover behavior of a two-node cluster is being testing in a large client  organization. One of the tests is to simulate a network_down event and verify that HACMP movesthe single resource group to the standby node.  What is the best way to simulate a network down condition?()   A、 Turn off the IP core switch connecting the two nodes.B、 Issue the command "stopsrc -g inetd" on the node that has the resource group.C、 Issue the command "sh /etc/rc.tcpclean" on the node that has the resource group.D、 Simultaneously unplug all network cables from the node that has the resource group.

Which of the following is required to ensure the completion of all tests within the automated procedure of thecluster test tool?()A、Application monitoring has been configuredB、Only disk heartbeat networks have been usedC、Cluster nodes are attached to two IP networksD、Resource Group dependencies have been configured

A new administrator is performing fallover testing on a two-node cluster and is concerned that the cascading resource group belonging to Node ’A’ did not reintegrate properly after the cluster was restarted on Node ’A’. A stable cluster is reported by clstat,and clRGinfo reports the resource group online on Node ’B’.  What type of configuration would cause this type of behavior?()  A、 The resource group DNP has been configured.B、 The resource group option CWOF has been enabled.C、 The resource group option Inactive Takeover is set.D、 A resource group fallback timer has been configured.

What is required during the initial creation of a cluster?()A、 Nothing,because HACMP will discover the configurationB、 The cluster name and a TCP/IP path to each of the nodesC、 The cluster name and ID and a TCP/IP path to each of the nodesD、 The cluster name and ID node names and a TCP/IP path to each of the nodes

A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover?()  A、 Disk should be mirrored across separate storage enclosures.B、 Disk heartbeats should be added over multiple disk adapters.C、 Disk major and minor numbers should be set as unique across nodes.D、 Disk adapter queue_depth should be increased from the default values.

A step in the HACMP test plan is to gracefully stop the cluster on a node and to verify that the Shared resources fallover to the standby node. To prepare for this testing step, both nodes in the two-node cluster are in a stable state with the single resource group active on Node ’A’.  Which of the following is the best way to execute this portion of the test plan?()  A、 Execute "lssrc -g cluster stop" on Node ’A’B、 Execute "cat /etc//motd /dev/kmem" on Node ’A’C、 Execute "/usr/es/sbin/cluster/utilities/sclstop -gr" on Node ’A’D、 Find the pid of cluster manager daemon on Node ’A’ and issue a "kill-9" against the pid

A network for a two-node cluster has been planned. The network administrator has explained that the networkdoes not support gratuitous ARP. Which of the following steps will ensure that clients are able to connect tothe cluster after a failover takes place?()A、Implement heartbeating over IP aliasesB、Implement persistent service IP addressesC、Implement IPAT aliasing with hardware address takeover (HWAT)D、Implement IPAT replacement with hardware address takeover (HWAT)

You are the network administrator for your company. The network consists of a single Active Directory domain. All computers on the network are members of the domain.   You administer a three-node Network Load Balancing cluster. Each cluster node runs Windows Server 2003 and has a single network adapter. The cluster has converged successfully.   You notice that the nodes in the cluster run at almost full capacity most of the time. You want to add a fourth node to the cluster. You enable and configure Network Load Balancing on the fourth node.   However, the cluster does not converge to a four-node cluster. In the System log on the existing three nodes, you find the exact same TCP/IP error event. The event has the following description: "The system detected an address conflict for IP address 10.50.8.70 with the system having network hardware address 02:BF://0A:32:08:46."   In the System log on the new fourth node, you find a similar TCP/error event with the following description: "The system detected an address conflict for IP address 10.50.8.70 with the system having network hardware address 03:BF://0A:32:08:46." Only the hardware address is different in the two descriptions.  You verify that IP address 10.50.8.70 is configured as the cluster IP address on all four nodes.  You want to configure a four-node Network Load Balancing cluster.   What should you do?  ()A、 Configure the fourth node to use multicast mode.B、 Remove 10.50.8.70 from the Network Connections Properties of the fourth node.C、 On the fourth node, run the nlb.exe resume command.D、 On the fourth node, run the wlbs.exe reload command.

A cluster indicates that a remote site has failed. What facilities exist in HACMP/XD://HAGeo to  ensure that the failure is not just a TCP/IP communication failure?()  A、 Electronic Service Agent software provides a redundant heartbeat between sites.B、 A non-IP network and Dial Back Fail Safe provide redundant heartbeats between sites.C、 The GeoMirror Devices provide a link validation facility that guarantees the validity between sites.D、 The Site Notification Daemon maintains a heartbeat between sites via short haul Modems/line drivers and dark fibre.

Company.com has a two-node HACMP cluster with a single cascading resource group. Node ’A’  is the normal production node, and Node ’B’ is the standby node. One of the first steps in the HACMP test plan is to start the cluster and to verify that al elements for the resource group have been acquired. The administrator who is conducting the HACMP test starts the HACMP daemons on Node ’B’ with the ’smitty clstart" command. The administrator notices that Node ’B’ acquires the elements of the resource group, including a service IP labels,a shared volume group, and an application server that has been started. The expectation was that Node ’B’ would enter the cluster in a standby status, rather than acquiring production resources.  What should the administrator do to correct this problem?()   A、 Change the cluster to a rotating design.B、 Change the Cascading without Fallback flag to true.C、 Change the Inactive Takeover field to false in the cluster configuration.D、 Nothing should be done. This is the default behavior for cascading resource groups,and node ’A’ should have been started first.

单选题Company.com with a newly installed cluster has been checking the logfiles to determine if the  cluster has had any recent activity. The non-IP RS232 heartbeat connection seems to be having a difficulty. The serial network goes down,and then a couple of minutes later comes back up again. This pattern is repeated many times in the log.  If this system was installed without regard to best practices, what is the most likely problem with the serial network?()A The serial port is malfunctioning and needs to be repaired.B The baud rate is incorrectly specified in the AIX devices configuration.C The serial port is not a port approved to support HACMP heartbeat traffic.D The baud rate is incorrectly specified in the HACMP interface configuration.

单选题Your company has a main office and a branch office. The offices connect by using WAN links. The network consists of a single Active Directory domain. An Active Directory site exists for each office.   Servers in both offices run Windows Server 2008 R2 Enterprise.   You plan to deploy a failover cluster solution to service users in both offices.  You need to plan a failover cluster to meet the following requirements: èMaintain the availability of services if a single server fails èMinimize the number of servers required What should you include in your plan?()ADeploy a failover cluster that contains one node in each office.BDeploy a failover cluster that contains two nodes in each office.CIn the main office, deploy a failover cluster that contains one node. In the branch office, deploy a  failover cluster that contains one node.DIn the main office, deploy a failover cluster that contains two nodes. In the branch office, deploy a  failover cluster that contains two nodes.

单选题A customer has a requirement to build a 4 node cluster. Disk heartbeating will be used as the non-IP network.What is the maximum number of disk heartbeat point-to-point links one would need to implement in order toachieve the highest level of availability?()A4B6C8D12

单选题During normal cluster processing in a five-node cluster,one of the nodes unexpectedly crashes. A review of the system dump indicates that a DMS timeout has occurred. The cluster is configured to use disk heartbeats as a Point-to-Point network.  What should be done to address the problem with this configuration?()A More disk should be added to the disk heartbeat network,allowing more paths for heartbeats.B An RS232 network is required to supply a more robust non-IP network when disk heartbeating is implemented.C The network tunable parameters should be changed to allow more missed heartbeats since the disks may be heavily used.D An error notification method is required to determine the action to take in response to a failure of the disk heartbeat.

单选题When configuring a single SRX210 as a firewall enforcer to a MAG4610 active/passive cluster, which statement supports a fault-tolerant configuration?()AThe cluster VIP is defined on the MAG4610 cluster, and the VIP of the cluster is defined as an instance on the SRX Series device.BThe cluster VIP is not defined on the MAG4610 cluster, and the IP address of both the active and passive nodes of the cluster are defined as separate instances on the SRX Series device.CThe cluster VIP is defined on the MAG4610 cluster, and the IP address of the active node is defined as an instance on the SRX Series device.DThe cluster VIP is not defined on the MAG4610 cluster, and the IP address of the passive node is defined as an instance on the SRX Series device.

多选题Your company named Contoso, Ltd. has a Network Load Balancing cluster named nlb.contoso.com. The cluster hosts are named WEB1 and WEB2. The cluster is configured with a single port rule that evenly distributes HTTP traffic between both hosts.  You need to configure WEB2 to handle all HTTPS traffic for nlb.contoso.com. You must retain the even distribution of HTTP traffic between WEB1 and WEB2.  Which two actions should you perform?()AIn the properties for WEB2, change the Handling priority option for the TCP 443 port rule to the value of1.BIn the properties for WEB1, change the Handling priority option for the TCP 443 port rule to the value of 0.CIn the properties for the cluster, create a new port rule for port TCP 443 that has the Filtering mode option set to Single host.DIn the properties for the cluster, create a new port rule for port TCP 443 that has the Filtering mode option set to Multiple host and the Affinity option set to the value of Single.

多选题You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers,configuring Windows Server 2008 Terminal services and network application services,and configuring aweb services infrastructure. Your company has a Network Load Balancing cluster named nlb.wiikigo.com.The cluster hosts are named WEB1 and WEB2. The cluster is configured with a single port rule that evenlydistributes HTTP traffic between both hosts. WEB2 needs to be configured to handle all HTTPS traffic fornlb.wiikigo.com. You must retain the even distribution of HTTP traffic between WEB1 and WEB2. What should you do to achieve this?()AIn the properties for the cluster, create a new port rule for port TCP 443 that has the Filtering modeoption set to Single host.BIn the properties for WEB2, the Handling priority option for the TCP 443 port rule should be changed tothe value of 1.CIn the properties for WEB1, the Handling priority option for the TCP 443 port rule should be changed tothe value of 0.DIn the properties for the cluster, create a new port rule for port TCP 443 that has the Filtering modeoption set to Multiple host and the Affinity option set to the value of Single.

单选题A cluster indicates that a remote site has failed. What facilities exist in HACMP/XD://HAGeo to  ensure that the failure is not just a TCP/IP communication failure?()A Electronic Service Agent software provides a redundant heartbeat between sites.B A non-IP network and Dial Back Fail Safe provide redundant heartbeats between sites.C The GeoMirror Devices provide a link validation facility that guarantees the validity between sites.D The Site Notification Daemon maintains a heartbeat between sites via short haul Modems/line drivers and dark fibre.

单选题A two-node cluster is attached via SAN to shared disk. The customer has requested that one of  the nodes be moved to another room 300 feet away. However, this distance exceeds the length specified by the RS232 specifications.  What solution would resolve the RS232 specification issue with the fewest additional components?()A Target mode fiber channel can be used with a SAN solution.B The heartbeat could be established by using a disk heartbeat.C An RS232 line driver can be used to extend the existing serial connection.D The NIM for the serial connection can be altered to compensate for the additional delay caused by the increased distance.

单选题The IP subsystem fallover behavior of a two-node cluster is being testing in a large client  organization. One of the tests is to simulate a network_down event and verify that HACMP movesthe single resource group to the standby node.  What is the best way to simulate a network down condition?()A Turn off the IP core switch connecting the two nodes.B Issue the command stopsrc -g inetd on the node that has the resource group.C Issue the command sh /etc/rc.tcpclean on the node that has the resource group.D Simultaneously unplug all network cables from the node that has the resource group.

单选题The en0 interface on Node1 of a two-node cluster has failed. This adapter is configured with a boot addressand under stable operations also has the service address of the cluster’s single resource group. The resourcegroup is configured with the fallback option. The HA network was configured for IPAT via aliasing and now theservice address is on the en1 interface in the cluster. The en0 interface has already been physically replacedand configured with the boot address. Which of the following will return the cluster to its original state andminimize cluster downtime?()ARun cluster synchronization.BRestart cluster services on Node1.CPerform a swap_adapter using C-SPOCDRestart cluster services on both nodes

单选题Company.com has a two-node HACMP cluster with a single cascading resource group. Node ’A’  is the normal production node, and Node ’B’ is the standby node. One of the first steps in the HACMP test plan is to start the cluster and to verify that al elements for the resource group have been acquired. The administrator who is conducting the HACMP test starts the HACMP daemons on Node ’B’ with the ’smitty clstart" command. The administrator notices that Node ’B’ acquires the elements of the resource group, including a service IP labels,a shared volume group, and an application server that has been started. The expectation was that Node ’B’ would enter the cluster in a standby status, rather than acquiring production resources.  What should the administrator do to correct this problem?()A Change the cluster to a rotating design.B Change the Cascading without Fallback flag to true.C Change the Inactive Takeover field to false in the cluster configuration.D Nothing should be done. This is the default behavior for cascading resource groups,and node ’A’ should have been started first.

单选题What is required during the initial creation of a cluster?()A Nothing,because HACMP will discover the configurationB The cluster name and a TCP/IP path to each of the nodesC The cluster name and ID and a TCP/IP path to each of the nodesD The cluster name and ID node names and a TCP/IP path to each of the nodes