题目内容（请给出正确答案）

[多选题]

下面关于投资回收期的论述，正确的有()。

A.投资回收期是用未来净现金流量清偿全部投资所需的时间

B.投资回收期能够反映项目的全部投资效果

C.投资回收期越短的方案，风险越小

D.投资回收期的倒数是投资效果系数

E.在一定程度上反映了项目投资效果的优劣

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更多“下面关于投资回收期的论述，正确的有（)。A．投资回收期是用未…”相关的问题

第1题

Which command would correctly configure a serial port on a router with the last usable host address in the 192.216.32.32/29 subnet？（）

A.Router(config-if)# ip address 192.216.32.38 255.255.255.240

B.Router(config-if)# ip address 192.216.32.39 255.255.255.224

C.Router(config-if)# ip address 192.216.32.63 255.255.255.248

D.Router(config-if)# ip address 192.216.32.39 255.255.255.248

E.Router(config-if)# ip address 192.216.32.38 255.255.255.248

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第2题

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

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第3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？（）

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

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第4题

An administrator must assign static IP addresses to the servers in a network.For network 1

92.168.20.24/29, 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

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第5题

Which command on router EzonexamA will assign the last usable IP address from the 192.168.

32.128/28 subnetwork to a router interface？

A. EzonexamA(config-if) ip address 192.168.32.142 255.255.255.240

B. EzonexamA(config-if) ip address 192.168.32.143 255.255.255.240

C. EzonexamA(config-if) ip address 192.168.32.158 255.255.255.240

D. EzonexamA(config-if) ip address 192.168.32.145 255.255.255.240

E. EzonexamA(config-if) ip address 192.168.32.144 255.255.255.240

F. EzonexamA(config-if) ip address 192.168.32.158 255.255.255.240

G. None of the above

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第6题

How many usable IP addresses can you get from a conventional Class C address？A．128B．192C．2

How many usable IP addresses can you get from a conventional Class C address？

A．128

B．192

C．254

D．256

E．510

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第7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？

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

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第8题

The network administrator needs to address seven LANs. RIP version 1 is the only routing p

rotocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block？（）

A.8

B.6

C.30

D.32

E.14

F.16

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第9题

On the network 131.1.123.0/27, what is the last IP address that can be assigned to a host？（）

A．131.1.123.30

B． 131.1.123.31

C． 131.1.123.32

D． 131.1.123.33

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第10题

A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.

255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached？（）

A. The default gateway is configured on a different subnet form this host.

B. The host is a member of the fifth usable subnet of the 192.168.16.0 network.

C. The subnetwork address for this host is 192.168.16.160/28.

D. The address of the next higher subnet is 192.168.16.192.

E. The address of the router interface that is attached to this subnetwork is 192.168.16.190.

F. There are 60 usable host addresses on this subnet.

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