单选题For a given Ethernet network， the failure cycle is set to 5 seconds and the heartbeat rate is set to 2 seconds.Given these values， what is the failure detection time for the network （in seconds）？（）A 5B 10C 12D 20

第1题：

What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multiaccess network?（）

• A、10
• B、40
• C、30
• D、20

第2题：

For a given Ethernet network， the failure cycle is set to 5 seconds and the heartbeat rate is set to 2 seconds.Given these values， what is the failure detection time for the network （in seconds）？（）

• A、5
• B、10
• C、12
• D、20

第3题：

You are about to design a very fast convergence time on a service provider network. Which feature wouldyou utilize to declare a link failure within less than two seconds of the fault on a link？（）

• A、fast convergence SFP
• B、MTU discovery
• C、redundancy links
• D、keepalive
• E、carrier delay

第4题：

When tuning a network module what is the purpose of the grace period？（）

• A、It defines the maximum permissible time period between missed heartbeats before a failure is detected
• B、It defines the time period to wait to activate the network module after starting the cluster manager
• C、It defines the period between detecting a missed heartbeat and initiating a network down， allowing thenetwork to stabilize
• D、It defines the time period during which， after a network failure was detected， further network failures of thesame type will be ignored

第5题：

Company.com is adding HACMP to an existing pair of nodes. One node is using EtherChannel  with only one adapter. The other node is using regular Ethernet connection to the switch. The customer is going to increase the number of network interfaces to two for each node.  What other considerations need to be addressed in a HACMP environment？（）  

• A、 Al interfaces used for HACMP heartbeats must be identical. Differences in the interfaces will cause heartbeat failure.
• B、 The network interfaces should all be configured with the same frame type. The use of regular Ethernet frames is mandatory.
• C、 Network interfaces for HACMP must be all the same，Ethernet or 802.3. It does not matter which，as long as they are all the same.
• D、 HACMP can use any network interface supported by AIX. The options on the various interfaces are masked by the Ethernet switch and do not affect HACMP.

第6题：

You are the network administrator for your company. The network contains a Windows Server 2003 Web server named WebServer1. WebServer1 is connected to the Internet by means of a dedicated link. You are responsible for monitoring the bandwidth utilization of WebServer1. You run a System Monitor log on WebServer1， which monitors the Bytes Total/sec counter on the Network Interface object. The sample rate for the counter is set to 15 seconds. The log is archived once each day.The size of the System Monitor log is becoming too large for the available disk space. You need to reconfigure the System Monitor log settings to reduce the amount of data that is captured.  What should you do？（）

• A、Retain the current counter， but set the sample rate to 5 seconds.
• B、Retain the current counter， but set the sample rate to 60 seconds.
• C、Change the counter to Total Bytes， and set the sample rate to 15 seconds.
• D、Change the counter to Current Bandwidth， and set the sample rate to 60 seconds.

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第13题：

You work as a network technician at. Your boss， Mrs. ， is interested in the Spanning Tree Protocol timers.  What can you tell her regarding the default STP timers？ （）

• A、The hello time is 5 seconds.
• B、The forward delay is 10 seconds.
• C、The hello time is 2 seconds.
• D、The forward delay is 15 seconds
• E、The max_age timer is 15 seconds.
• F、The hello time is 10 seconds.
• G、The max_age timer is 20 seconds.
• H、The forward delay is 20 seconds.
• I、The max_age timer is 30 seconds.

第14题：

Companycom will be using Virtual IO Server to share Ethernet adapters. What can be done to prevent network failure of the client if a Virtual IO Server goes down?（）

• A、Create two virtual adapters on the client， each one from a separate Virtual IO Server
• B、Enable dead gateway detection on the client so that the network traffic can be rerouted
• C、Have a spare network card on standby in the client in case the Virtual IO Server goes down
• D、Create an etherchannel adapter on the client using one Virtual Ethernet adapter from two  separate Virtual IO Servers

第15题：

A customer is in the process of testing their configuration prior to going live. The administrator discovers thatPowerHA is taking 31 seconds to deal with a standard NIC failure. What can the administrator do to speed upthe process of NIC failure detection and diagnosis？（）

• A、Tune the topsvcs NIM settings
• B、Tune the grpsvcs NIM settings
• C、Activate the fast failure detection （FFD） feature
• D、Activate the Gigabit fast failover feature on the physical adapters

第16题：

During routine examination of the log files，a message similar to "TS_DMS_WRINING_ST" was discovered. To avoid future problems，change the Network Module failure detection rate to：（）

• A、 a faster value on the fastest heartbeat network.
• B、 a slower value on the slowest heartbeat network.
• C、 a faster value on the slowest heartbeat network.
• D、 a slower value on the fastest heartbeat network.

第17题：

If all OSPF routers on a broadcast network have the same OSPF priority， what parameter is used to determine the new BDR at the time of a DR failure？（）

• A、 area ID
• B、 router ID
• C、 loopback address
• D、 IP address of interface on broadcast network

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