IP address is classful.
IP address is a subnet broadcast address.
IP address is a subnet network address.
IP address is classless
第1题：
A.Addresses are permanently assigned so that the host uses the same address at all times.
B.Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.
C.Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.
D.Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
第2题：
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）
第3题：
An administrator has just installed a new NIC into the server. The system POSTs fine and the NIC is recognized by the OS, but it does not receive an IP address. Which of the following is the MOST likely cause of this?（）
A. The NIC is not on the HCL.
B. The driver is incorrect on the server.
C. The patch cable has not been seated properly.
D. The NIC is not seated properly.
第4题：
Workstation A has been assigned an IP address of 192.0.2.24/28. Workstation B has been assigned an IP address of 192.0.2.100/28. The two workstations are connected with a straight-through cable. Attempts to ping between the hosts are unsuccessful. What two things can be done to allow communications between the hosts? （）
第5题：
TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.（）
第6题：
A network administrator needs to verify that switch interface 0/5 has been assigned to the Sales VLA.N. Which command will accomplish this task?（）
第7题：
A new Aironet 1200 series AP has been installed in the Company WLAN. What happens when this device is connected to the LAN， with a default configuration？（）
第8题：
A. network or subnetwork IP address
B. broadcast address on the network
C. IP address leased to the LAN
D. IP address used by the interfaces
E. manually assigned address to the clients
F. designated IP address to the DHCP server
第9题：
A server has been assigned the 192.168.100.127/25 IP address. The server is experiencing strange network connectivity related problems. Which of the following would BEST describe the problem?（）
第10题：
How dose a DHCP server dynamically assign IP address to host?（）