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Most of the host operating system provides a way for a system administrator to manually configure the IP information needed by a host. Automated configuration methods, such as （）, are required to solve the problem.
A.IPSec
B.DHCP
C.PPTP
D.SOAP
B.DHCP
C.PPTP
D.SOAP
参考答案
参考解析
解析：DHCP是一个局域网的网络协议，使用UDP协议工作，主要用途是给内部网络或网络服务供应商自动分配IP地址给用户，给内部网络管理员作为对所有计算机作中央管理的手段。Internet协议安全性（IPSec）是一种开放标准的框架结构，通过使用加密的安全服务以确保在Internet协议（IP）网络上进行保密而安全的通信。PPTP协议是在PPP协议的基础上开发的一种新的增强型安全协议,支持多协议虚拟专用网（VPN），可以通过密码身份验证协议（PAP）、可扩展身份验证协议（EAP）等方法增强安全性。可以使远程用户通过拨入ISP、通过直接连接Internet或其他网络安全地访问企业网。简单对象访问协议（SOAP）是一种轻量的、简单的、基于XML的协议，它被设计成在Web上交换结构化的和固化的信息。SOAP可以和现存的许多因特网协议和格式结合使用，包括超文本传输协议（HTTP），简单邮件传输协议（SMTP），多用途网际邮件扩充协议（MIME）。它还支持从消息系统到远程过程调用（RPC）等大量的应用程序。用于配置IP信息的是DHCP协议，因此选B
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单选题The sysdumpdev command can be used to configure remote dump devices. Which of the following conditions is NOT used for a remote dump device configuration?（）A
The local and the remote host must have Transmission Control Protocol/Internet Protocol (TCP/IP) installed and configured. B
The remote host must support NFS. C
The remote host must have an NFS exported directory defined such that the local host has read and write permissions to the dump file on the remote host. D
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单选题You need to change the hostname and IP address of a server. Without manually editing all of the required files， which command can be run to restore a system configuration to an unconfigured state， ready to be reconfigured again restore a system configuration to an unconfigured state， ready to be reconfigured again？ （）A
/usr/sbin/sys-unconfigB
/usr/sbin/unconfigC
/sbin/ipconfigD
/usr/sbin/set_parms initial
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单选题You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）A
The backup status will be marked expired in RMAN recovery catalog.B
The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.C
The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery cataloglD
The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.E
The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.
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单选题Which of the following information would be on a system classification list？ （）A
Disk drive sizeB
IP addressC
Acceptable outage timeD
Operating system version
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单选题Which of the following is TRUE about the ate program？（）A
When running ate for the first time it will prompt for all the required information and configure all the required devicesB
The program is used by cu to communicate to a remote systemC
The program is used for remote communications between the host and a remote system using a modem or null modem via a tty portD
The program ate calls cu to communicate with the remote system
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单选题To examine the Exhibit， press the Exhibit button. The system administrator notices a system with routing cannot communicate with a system with an ip address 192.24.34.6. Using the information provided in the exhibit， what is the most likely reason？（）A
The named is not runningB
The default gateway is not setC
The NIS master server is downD
Ipforwarding is not turned on
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