It is used to identify the maximum hop count of a subnetwork
It is used to identify an IP address as either private or public
It is used to identify the network to which an IP address belongs
It is used to identify the total number of bits present in an IP address
第1题：
A.172.16.16.0
B.172.16.24.0
C.172.16.0.0
D.172.16.28.0
第2题：
A.255.255.255.0
B.255.255.255.192
C.255.255.255.250
D.255.255.255.252
第3题：
The 192.168.0.0 network is not being propagated throughout the network. Observe the BGP configuration commands from the advertising router.What is the reason the 192.168.0.0 route is not being advertised? （）
A. The network 192.168.0.0 statement is missing mask 255.255.0.0
B. The network 192.168.0.0 statement is missing mask 0.0.255.255.
C. The network 10.0.0.0 statement is missing mask 255 .0.0.0.
D. The network 10.0.0.0 statement is missing mask 0.255.255.255.
E. The auto - summary configuration is missing.
第4题：
Node ’A’ and ’B’ have two network adapters connected to different networks. Adapter 1 is assigned the address 192.168.0.10 with a subnet mask of 255.255.255.0. Adapter 2 is assigned the address 24.76.1.200 with a subnet mask of 255.255.240.0. What is the minimum number of additional adapters per node required to eliminate a network adapter as a single point of failure？（）
第5题：
A new router, named TK1, is being installed. You wish to add this router to your existing OSPF network. In doing so, you configure the following: TK1(config)# router ospf 1 TK1(config-router)# network 10.10.10.0 255.255.255.0 area 0 After making this change, you notice that the networks attached to TK1 are not being learned by the other OSPF routers. What could be the cause of this?（）
第6题：
A.With a network wide mask of 255.255.255.128, each interface does not require an IP address.
B.With a network wide mask of 255.255.255.128, each interface does require an IP address on a unique IP subnet.
C.With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to communicate with each other.
D.With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to communicate with each other.
E.With a network wide mask of 255.255.254.0, each interface does not require an IP address.
第7题：
要把190.72.27.0/27这个网段广播给EBGP邻居，需要做以下哪个命令配置（）
第8题：
ABGProuterisconfiguredasshownbelow：interfaceethernet0ipaddress10.10.10.1255.255.0.0!intserial0ipaddress172.16.1.1255.255.255.252!routerbgp65001neighbor192.168.1.1remote-as65002Basedontheaboveconfiguration，whichofthefollowingBGPstatementswouldinjectthe10.10.0.0/16prefixintotheBGProutingtable？（）
A.network10.0.0.0
B.network10.10.0.0mask255.255.0.0
C.network10.10.10.1mask255.255.255.255
D.network10.10.10.0mask255.255.255.0
E.network10.0.0.0mask255.255.0.0
第9题：
What is the purpose of Spanning Tree Protocol?（）
第10题：
What is the purpose of a network mask?（）