The address will always end in 255.
The address will always be the first interface’s IP address
The address will always be the network with a 1 as the final octet.
It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP addres
第1题：
A.S1(config)# interface fastethernet 0/1S1(config - if)# ip helper - address 10.0.0.2
B.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 20.0.0.1
C.R1(config)# interface fastethernet 0/0 R1(config - if)# ip help er - address 20.0.0.2R 1(config - if)# ip helper - address 20.0.0.3 R1(config - if)# ip helper - address 20.0.0.4 R1(config - if)# exit R1(config)# interface fastethernet 0/1 R1(config - if)# ip helper - address 10.0.0.1
D.R1(config)# interface fastethernet 0/0 R1 (config - if)# ip helper - address 20.0.0.1 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if)# ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1
E.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 10.0.0.2 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if) # ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1
第2题：
A. defines the source IP address that i s used in all broadcast packets on DLCI 202
B. defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address
C. defines the destination IP address that is used in all broadcast packets on DLCI 202
D. defines the DLCI on which packets from the 192.168.1.2 IP address are received
第3题：
A.TRACERT
B.IPCONFIG/ALL
C.NSLOOKUP
D.PING-T
第4题：
You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?（）
第5题：
After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?（）
第6题：
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
第7题：
A.the IP address of Switch 1
B.the MAC address of Switch 1
C.the IP address of Host C
D.the MAC address of Host C
E.the IP address of the router‘s E0 interface
F.the MAC address of the router‘s E0 interface
第8题：
A.The last default - network statement will always be preferred.
B.A route to the 140.140.0.0 network does not exist in the routing table.
C.Default - network selection will always prefer the statement with the lowest IP address.
D.A router will load balance across multiple default - networks; repeatedly issuing the show ip route command would show the gateway of last resort changing between the two networks.
第9题：
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）
第10题：
Which destination addresses will be used by Host A to send data to Host C?（）