可以担任保证人的是（)。A．国家机关B．学校C．医院D．私营企业

om your PC command prompt, but the output shows "request times out."

At which OSI layer is this problem associated with？

A．The data link layer

B．The application layer

C．The access layer

D．The session layer

E．The network layer

ng a route, or may be receiving bad routing information to a destination. What command should you issue to view the route that the router will use to reach a given destination？（）

A. ping

B. trace

C. show ip route

D. show interface

E. show cdp neighbors

ring the troubleshooting process, you notice that one of your colleagues connects additional devices to the network with the use of his own switch. With the purpose of improving speed, the switch is attached to both network ports in an office, which leads to bridge loop.Enabling which of the following feature will be able to prevent this problem from happening again？（）

A.GLBP

B.RSTP

C.BPDU guard

D.root guard

t has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port？

A. This is an Ethernet port operating at half duplex

B. This is an Ethernet port operating at full duplex

C. This is a port on a network interface card in a PC

D. This is 10 MB/s switch port

E. This is a 100 MB/s switch port

F. None of the above

that the server unexpectedly shut down several times during the past week.You need to identify what caused the shutdowns and which software was recently installed.What should you click from Action Center？（）

A. Maintenance, and then View reliability history

B. Troubleshooting, and then Programs

C. Troubleshooting, and then System and Security

D. Troubleshooting, and then View history

You have a computer that runs Windows Vista. You create a virtual private network (VPN) connection between the computer and your company’s network.You notice that while the computer is connected through the VPN connection, users on the company network can access shared folders on the computer.You need to prevent network users from accessing your shared folders when you are connected to the company’s network by using the VPN connection.What should you do？（）

A.A

B.B

C.C

D.D

You are the network administrator for Ezonexam.com.

You are planning to install 10 new Windows 2000 Server computers. Ezonexam has a tight production schedule that requires no changes be made to the Active Directory except during scheduled outages. You schedule the installations during an upcoming network outage which will occur betweenmidnight and 8:00 A.M.

You want to complete the installations before production begins in the morning.

What should you do？

A．Perform. the installations by using four floppy disks create with the Makebt32.exe utility.

B．Perform. the installations by using four floppy disks create with the Makeboot.exe utility.

C．Perform. the installations by using the Windows 2000 Installation compact disc.

D．Perform. the installations by using the Windows 2000 Installation compact disc and a floppy disk containing a Winnt.sif file.

A.Configuring changes to hardware and software

B.Monitoring online purchasing

C.Monitoring user access to storage files

D.Monitoring and troubleshooting network devices

e Directory domain.All servers run Windows Server 2003.An administrator named Misty Shock attempts to perform troubleshooting tasks on a file server. However, when she attempts to open the security event log, she receives the error message shown in the exhibit. (Click the Exhibitbutton.)You need to ensure that Misty can complete her troubleshooting tasks.What should you do？（）

A. Add Misty‘s user account to the Server Operators domain group.

B. Add Misty‘s user account to the local Administrators group on the file server.

C. Configure Misty‘s client computer to enable the IPSec Server (Request Security) policy.

D. Assign Misty‘s user account the Allow logon through Terminal Services user right for the file server.

status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate（）。

A.The port is experiencing errors

B.The port is administratively disabled

C.The port is blocked by spanning tree

D.The port has an active link with normal traffic activity