[单项选择]What will happen if a private IP address is assigned to a public interface connected to an ISP?（）
A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.

[单项选择]What will happen if a private IP address is assigned to a public interface connected to an ISP?（）
A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.

[单项选择]An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）
A. IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9
B. IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1
C. IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25
D. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17
E. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25

[多项选择]Which of the following describe private IP addresses?（）
A. Addresses chosen by a company to communicate with the Internet.
B. Addresses that cannot be routed through the public Internet.
C. Addresses that can be routed through the public Internet.
D. A scheme to conserve public addresses.
E. Addresses licensed to enterprise or ISPs by an Internet registry organization.

[多项选择]Which two methods are used to assign an IP address to a WX device? （）(Choose two.)
A. SSH
B. Telnet
C. WebView
D. device front panel
E. serial console (command-line interface)

[单项选择]How does a DHCP server dynamically assign IP addresses to hosts?（）
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.

[单项选择]How dose a DHCP server dynamically assign IP address to host?（）
A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
B. Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.
C. Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.
D. Addresses are permanently assigned so that the host uses the same address at all times.

[单项选择]Which command will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?（）
A. TestKingA(config-if)# ip address 192.168.32.142 255.255.255.240
B. TestKingA(config-if)# ip address 192.168.32.143 255.255.255.240
C. TestKingA(config-if)# ip address 192.168.32.158 255.255.255.240
D. TestKingA(config-if)# ip address 192.168.32.145 255.255.255.240
E. TestKingA(config-if)# ip address 192.168.32.144 255.255.255.240

[多项选择]What are three valid reasons to assign ports on VLANs on a switch?（）
A. to make VTP easier to implement
B. to isolate broadcast traffic
C. to increase the size of the collision domain
D. to allow more devices to connect to the network
E. to logically group hosts according to function
F. to increase network security

[多项选择]What are three valid reasons to assign ports to VLANs on a switch? （）
A. to make VTP easier to implement
B. to isolate broadcast traffic
C. to increase the size of the collision domain
D. to allow more devices to connect to the network
E. to logically group hosts according to function
F. to increase network security

[单项选择]What would happen to superstars at last according to the passage
A. They will become the greatest people in history.
B. They will be greatest people in history.
C. They will be less known as time passes by.
D. They will live in the hearts of people forever.