A remote physical layer problem exists.
The host NIC is not functioning.
TCP/IP has not been correctly installed on the host.
A local physical layer problem exists.
第1题：
A.HOST-A
B.HOST-B
C.HOST-C
D.HOST-D
第2题：
A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.
In which OSI layer is the problem most likely occurring?
A．Physical
B．Data link
C．Network layer
D．Transport layer
E．Application layer
第3题：
While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the 7-layer OSI model does the problem most likely exist?
A. The data link layer
B. The application layer
C. The protocol layer
D. The access layer
E. The session layer
F. The network layer
G. None of the above
第4题：
A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command. In which OSI layer is the problem most likely occurring?（）
第5题：
A.172.16.182.1
B.192.168.1.1
C.10.16.176.1
D.192.168.1.6
第6题：
A. Switching loop
B. Broadcast storm
C. IP conflict
D. Routing loop
第7题：
A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?（）
A. Physical
B. Data link
C. Network layer
D. Transport layer
E. Application layer
第8题：
● 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 (72) , are required to solve the problem．
（72）
A．IPsec
B．DHCP
C．PPTP
D．SOAP
第9题：
While troubleshooting a connectivity issue from a PC you obtain the following information: Local PC IP address: 10.0.0.35/24 Default Gateway: 10.0.0.1 Remote Sever: 10.5.75.250/24 You then conduct the following tests from the local PC: Ping 127.0.0.1 – Successful Ping 10.0.0.35 – Successful Ping 10.0.0.1 – Unsuccessful Ping 10.5.75.250 – Unsuccessful What is the underlying cause of this problem?（）
第10题：
Refer to the exhibt.Host A has tested connectivity to a remote network.What is the default gateway for host A?（）