单选题Several remote sales employees， who have come into the office this week， report that they are unable to get on the Internet， but no other users have reported similar issues. The help desk hasescalated the issue and the case notes state that the users have IP addresses that begin with 169. Which of the following should the system administrator check FIRST？（）ADHCP serverBNetwork switchesCDNS serverDCore router
单选题
Several remote sales employees， who have come into the office this week， report that they are unable to get on the Internet， but no other users have reported similar issues. The help desk hasescalated the issue and the case notes state that the users have IP addresses that begin with 169. Which of the following should the system administrator check FIRST？（）
A
DHCP server
B
Network switches
C
DNS server
D
Core router
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多选题You executed this command to create a password file: $ orapwd file = orapworcl entries = 10 ignorecase = N Which two statements are true about the password file?（）AIt will permit the use of uppercase passwords for database users who have been granted the SYSOPER role.BIt contains username and passwords of database users who are members of the OSOPER operating system group.CIt contains usernames and passwords of database users who are members of the OSDBA operating system group.DIt will permit the use of lowercase passwords for database users who have granted the SYSDBA role.EIt will not permit the use of mixed case passwords for the database users who have been granted the SYSDBA role.
单选题The Lancaster case shows that employees have the right to get compensation if they ______.Aare given work that they are unable to doBsuffer mental injury caused by their workCare forced to do work that they don’t likeDfeel isolated, let down and extremely anxious
单选题You are the administrator of 15 Windows XP Professional portable computers in the sales department of your ompany. The company network uses DHCP to configure the IP addresses of the portable computers when the computers are used in the office. Company policy allows the company portable computers to be connected to users' home networks. The sales department reports that users who use home networks that have manually configured IP addresses are unable to connect the portable computers to their home networks. You want to ensure that users can connect portable computers to their home networks when they are at home and to the company network when they are in the office. You do not want to change the configuration of home computers on users' home networks. You do not want to change the administrative privileges of the sales department users. What should you do?（）AConfigure the network adapters of the portable computers to enable Internet Connection Sharing (ICS). BConfigure the network adapters of the portable computers to enable Automatic Private IP Addressing (APIPA).CAdd a script to the users' desktops that changes the IP configuration between dynamic and manual.DConfigure the IP properties of the portable computers so that they have an alternate configuration.
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单选题You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？（）AClear the MAC address table in the switch.BClear the ARP cache in the switch.CClear the ARP cache in the end devices.DClear the ARP cache in the application servers.
单选题A network technician is troubleshooting a network issue that has just been reported. Which of thefollowing troubleshooting steps should the technician take FIRST to help resolve this issue?（）ARecord the solution in the appropriate logs for future use.BAsk the user who reported the issue what past documentation they have.CAsk the user who reported the issue to explain the symptoms in detail.DRecord what steps should be taken to resolve the issue.
单选题You are the network administrator for your company. The network consists of a single Active Directory domain. The company has remote users in the sales department who work from home. The remote users’ client computers run Windows XP Professional， and they are not members of the domain. The remote users’ client computers have local Internet access through an ISP. The company is deploying a Windows Server 2003 computer named Server1 that has Routing and Remote Access installed. Server1 will function as a VPN server， and the remote users will use it to connect to the company network. Confidential research data will be transmitted from the remote users’ client computers. Security is critical to the company and Server1 must protect the remote users’ data transmissions to the main office. The remote client computers will use L2TP/IPSec to connect to the VPN server. You need to choose a secure authentication method. What should you do？ （）A Use the authentication method of the default IPSec policies.B Create a custom IPSec policy and use the Kerberos version 5 authentication protocol.C Create a custom IPSec policy and use certificate-based authentication.D Create a custom IPSec policy and use preshared key authentication.E Use the authentication method of the Routing and Remote Access custom IPSec policy for L2TP connection.
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