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单选题
You have a Class C network, and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?（）
A
255.255.255.192
B
255.255.255.224
C
255.255.255.240
D
255.255.255.248
E
None of the above
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单选题You have a network containing 120 routers. You must establish and maintain connectivity between the loopback interfaces of all routers. Because of the critical services using the network, you need redundancy and fast failover. Which routing protocol should you use in this scenario?（）A
OSPFB
RIPC
BGPD
static
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CodeAccessPermission.RevertAssert（）；B
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考题
单选题Your company is designing its network. The network will use an IPv6 prefix of 2001:DB8:BBCC:0000::/53. You need to identify an IPv6 addressing scheme that will support 2000 subnets. Which network mask should you use？（）A
/61B
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考题
单选题You have been assigned the /24 network and need to segment it into at least 60 subnets. Which network mask meets this requirement?（）A
/27B
/28C
/29D
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考题
单选题You have a Class C network, and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?（）A
255.255.255.192B
255.255.255.224C
255.255.255.240D
255.255.255.248E
None of the above
考题
单选题You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?（）A
225.225.224.0.B
225.225.240.0.C
225.225.255.0.D
255.255.255.224E
225.225.255.240
考题
单选题You have been assigned the 66.96.130.0/24 network and need to segment ito at least 60 subnets. Which network mask meets this requirement?（）A
/27B
/28C
/29D
/30
考题
单选题_____ ten minutes earlier, you wouldn't have missed the train. But you were late.A
Had you comeB
Did you comeC
Have you comeD
Should you come
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