An administrator wants to test the network MTU. Which of the following commands allows differentsize packets to be sent?()

第1题

在路由器上建立一个名为test的DHCP地址池，并为其分配IP地址202.112.7.0、24，子网地址中的202.112.7.2～202.112.7.10作为静态地址分配，正确的DHCP配置是A．Router(config)#ip dhcp pool test Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(dhcp-config)#network 202.112.7.0 255.255.255.0B．Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0/24C．Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0 0.0.0.255D．Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0 255.255.255.0

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第2题

在路由器上建立一个名为test的DHCP地址池，并为其分配IP地址202.112.7.0/24，子网地址中的202.112.7.2～202.112.7.10作为静态地址分配，正确的DHCP配置是______。A．Router(config) #ip dhcp pool test Router(config) #ip dhcp excluded-address 202.112.7.2-10 Router(dhcp-config) #network 202.112.7.0-255.255.255.0B．Router(config) #ip dhcp excluded-address 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0/24C．Router(config) #ip dhcp exclude&address 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0-0.0.0.255D．Router(config) #ip dhcp excluded-address 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0-255.255.255.0

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第3题

You’re going to have a quiz ( )by another two in the ( )month.A. followed,followedB. followed,followingC. following,followedD. following,following

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第4题

YouaremanaginganOracleDatabase11gdatabaserunninginARCHIVELOGmode.TheFlashRecoveryAreaisspecifiedasthedestinationforthearchivedredologfiles.Younoticethiswarninginthealertlogfile：ORA-19815：WARNING：db_recovery_file_dest_sizeof3221225472bytesis100.00%used，andhas0remainingbytesavailable.WhatwouldyoudotoreclaimtheusedspaceintheFlashRecoveryArea（）A.BackuptheFlashRecoveryArea.B.Decreasetheretentiontimeforthedatabasebackupandflashbacklogfiles.C.ManuallydeleteallthearchivedlogfilesfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.D.ManuallydeletealltheexpiredbackupsetsfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.

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第5题

图2-1所示的是基于硬件的负载均衡方案，其中WSD Pro被称为导向器，通过导向器的调度，实现服务的负载均衡。主机www1.test.com、www2.test.com、ns.test.com和 WSD Pro都配置了双网卡，IP地址标注在图中。图中的各个服务器必须进行恰当的配置，主机ns.test.com的/etc/sysconfig/network文件和/etc/sysconfig/network-scripts/ifcfg-eth0文件配置如下：/etc/sysconfig/network 文件清单：NETWORKING=yesFORWARD IPV4=(3)HOSTNAME=ns.test.comDOMAINNAME=(4)GATEWAY=(5)GATEWAYDEV=eth0/etc/sysconfig/network-scripts/ifcfg-eth0 文件清单：DEVICE=eth0IPADDR=(6)NETMASK=255.255.255.0NETWORK=(7)BROADCAST=(8)NBOOT=yes填写上面的空格，完成文件的配置。

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第6题

图3-8中的各个服务器必须进行恰当的配置。主机ns.test.com的/etc/sysconfig/network文件部分配置如下：FORWARD_IPV4=(3)HOSTNAME=ns.test.comDOMAINNAME=(4)GATEWAY=(5)GATEWAYDEV=eth0将以上文件(3)～(5)空缺处的内容填写完整，完成相关文件的配置。

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第7题

请将主机ns.test.com的/etc/sysconfig/network-scripts/ifcfg-eth0文件的(6)～(7)空缺处的配置内容填写完整，请回答相关问题：DEVICE=eth0IPADDR=(6)NETMASK=255.255.255.0NETWORK=(7)BROADCAST=255.255.255.255NBOOT=yes若将“BROADCAST=255.255.255.255”语句修改为“BROADCAST=192.168.1.255”，则对网络有什么影响? (请简要说明理由)

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