数据库设计的过程中需要建立各种模型。其中，E-R模型属于

A．172.16.42.0

B．172.16.107.0

C．172.16.208.0

D．172.16.252.0

E．172.16.254.0

A. DHCP settings

B. BIOS settings

C. DNS settings

D. Power settings

etwork administrator configure port security on this Ezonexam device？

A．To prevent unauthorized hosts from getting access to the LAN

B．To limit the number of Layer 2 broadcasts on a particular switch port

C．To prevent unauthorized Telnet or SSH access to a switch port

D．To prevent the IP and MAC address of the switch and associated ports

E．None of the above

Which of the following need to be completed for the creation of this new VLAN？ (Select all that apply)

A. The EZONEXAM VLAN must be created.

B. The desired ports must be added to the new EZONEXAM VLAN.

C. The EZONEXAM VLAN must be added to all of the domains.

D. The EZONEXAM VLAN must be named.

E. An IP address must be configured for the EZONEXAM VLAN.

F. None of the above. VLAN creations are automatic.

IP address of 192.168.1.115. Which IOS command should you use？

A．TestKSwitch(config)# ip route-default 192.168.1.115

B．TestKSwitch(config)# ip default-gateway 192.168.1.115

C．TestKSwitch(config)# ip route 192.168.1.115 0.0.0.0

D．TestKSwitch(config)# ip default-network 192.168.1.115

E．None of the above

ched network？ (Select all that apply)

A．Create the VLAN.

B．Name the VLAN.

C．Configure an IP address for the VLAN.

D．Add the desired ports to the new VLAN.

E．Add the VLAN to the VTP domain.

re that the web server is accessible from the Internet. The network uses private addressing, so an IP-to-registered address mapping is required.

To do this, you enter the following command:

Ezonexam(config)# ip nat inside source static 192.168.2.1

198.18.1.254

You unsuccessfully try to ping the Internet from a PC host on the LAN. During the troubleshooting process, you enter the "show ip nat translations" command but the output is blank.

What is the most likely cause of the problem？

A．The keyword overload is missing from the command.

B．The NAT pool must be defined first.

C．An access list must be defined to create static NAT translations.

D．The interfaces must be configured for NAT.

E．None of the above

What is the subnet for the host IP address 172.16.210.0/22？

A. 172.16.42.0

B. 172.16.107.0

C. 172.16.208.0

D. 172.16.252.0

E. 172.16.254.0

F. None of the above

A. router(config-if)#ip address 142.8.2.1 subnet mask 255.255.252.0

B. router(config-if)#142.8.2.1 0.0.3.255

C. router(config-if)#ip address 142.8.2.1 255.255.252.0

D. router(config-if)#142.8.2.1 subnet mask 255.255.252.0

E. router(config-if)#ip address 142.8.2.1 0.0.3.255

F. router(config-if)#ip address 142.8.2.1 subnet mask /22

Local PC IP address: 10.0.0.35/24Default Gateway: 10.0.0.1Remote Sever: 10.5.75.250/24You then conduct the following tests from the local PC:Ping 127.0.0.1 – SuccessfulPing 10.0.0.35 – SuccessfulPing 10.0.0.1 – UnsuccessfulPing 10.5.75.250 – UnsuccessfulWhat is the underlying cause of this problem？（）

A.A remote physical layer problem exists.

B.The host NIC is not functioning.

C.TCP/IP has not been correctly installed on the host.

D.A local physical layer problem exists.