[单项选择]The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch.What must be done to ensure that this new switch becomes the root bridge on the network?（）
A. One router is running RIPv1.
B. RIP neighbor is 224.0.0.9.
C. The network contains a loop.
D. Network 10.10.1.0 is reachable.

[单项选择]The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?（）
A. Lower the bridge priority number.
B. Change the MAC address of the switch.
C. Increase the VTP revision number for the domain.
D. Lower the root path cost on the switch ports.
E. Assign the switch an IP address with the lowest value.

[多项选择]A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）
A. Router# ping 192.168.13.26
B. Router# debug access-list 172
C. Router# show open ports 192.168.13.26
D. Router# show access-list
E. Router# show ip interface

[单项选择] A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back. What is causing the problem?（）
A. The host needs to open the telnet port.
B. The host needs a route for the translated address.
C. The administrator must use a proxy-arp policy for the translated address.
D. The administrator must use a security policy, which will allow communication between the zones.

[单项选择] A network administrator has been receiving work orders about poor voice quality crossing a branch T1. The cause is determined to be users running high bandwidth file sharing applications across the T1 sending large packets delaying the smaller voice streams. Which of the following would improve voice quality?（）
A. Configure traffic shaping to reduce the bandwidth available to the file sharing application.
B. Configure a separate VLAN for the IP phones.
C. Install a content caching proxy at the branch to reduce inbound WAN traffic.
D. Upgrade switches to provide higher bandwidth ports for workstations and IP phones.

[单项选择]Your network administrator has asked you to view the real-time interface usage on ge-0/0/0, Which command whould be used?（）
A. monitor interface ge0/0/0
B. traceoptions interface ge-0/0/0
C. debug interface ge0/0/0
D. monitor usage ge-0/0/0

[多项选择]For added security, a network administrator has decided to lock down the wireless network. Which of the following are ways to accomplish this? （）(Select TWO).
A. Disable all 802.11 traffic
B. Disable the SSID from broadcasting
C. Disable WPA
D. Enable Bluetooth only communication
E. Change the default admin password
F. Disable WEP

[单项选择]The network administrator has asked you to check the status of the workstation’s IP stack by pinging the loopback address.Which address would you ping to perform this task？（）
A. 10.1.1.1
B. 127.0.0.1
C. 192.168.0.1
D. 239.1.1.1

[多项选择]the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）
A. telnet access does not require a password
B. nat
C. no broadcast
D. chanage of destination address in the ipv6 header
E. chanage of source address in the ipv6 header
F. autoconfiguration

[单项选择]Your network has Network Access Protection (NAP) deployed. The network contains two servers named Server1 and Server2. Server1 is a Network Policy Server (NPS). Server2 has a third-party antivirus solution installed.Server1 is configured to use a custom system health validator provided by the antivirus vendor. The system health validator uses Server2 to identify the version of the current antivirus definition.You need to ensure that NAP clients are considered noncompliant if Server1 cannot connect to Server2.Which error code resolution setting should you configure？（）
A. SHA not responding to NAP client
B. SHA unable to contact required services
C. SHV not responding
D. SHV unable to contact required services

[单项选择] You are the network administrator for The network consists of a single Active Directory domain named The network contains 40 Windows Server 2003 computers. The functional level of the domain is Windows Server 2003. Four servers are configured as domain controllers. The information technology (IT) department has positions for three trainee network administrators. When their training period is complete, the trainees move the other roles, and new trainees are appointed. The trainee administrators are responsible for backing up and restoring all servers. TestKing.com's written security policy states that each trainee must have a unique user account. The trainees' domain user accounts are members of a global group named TraineeAdmins. You need to ensure that trainees have the required rights to log on locally, to shut down, and to backup and restore all servers. When new trainees are appointed, you need to assign their user accounts the required rights. What should you do?（）
A. Add the TraineeAdmins group to the Power Users group on each server.
B. Add the TraineeAdmins group to the Server Operators group on a domain controller.
C. Add the TraineeAdmins group to the Backup Operators group on each server.
D. Add the TraineeAdmins group to the Backup Operators group on a domain controller.