11月24日最新CCNA考题发布
1.What was one of the most important reasons the International Organization for Standardization released the OSI model? A. Users could access network server faster.
B. Different vendor’s networks could work with each other.
C. The industry could create a standard for how computers work.
D. The network administrator could increase the overall speed of their network. 答案及讲解收听序号: 16861000－7－01 top 2.Which channels are used by ISDN BRI? A. 2d+b
B. 23d+b
C. 2b+d
D. 23b+d 答案及讲解收听序号: 16861000－7－02 top 3.Access-list 122 permit ip 131.107.30.0 0.0.0.255 any You apply the access-list above. Which is the effect? A. Permit all packets matching the first three octets of the source address to all destinations.
B. Permit all packets matching the last of the destination address and accept all source address.
C. Permit all packets from the third subnet of the network address to all destinations.
D. Permit all packets matching the host bits in the source address to all destinations.
E. Permit all packets to destination matching the first three octets in the destination address. 答案及讲解收听序号: 16861000－7－03 top 4.Using a class C address range 192.168.21.12 your network needs twenty-eight subnets. Which subnet
mask should you use? A. 255.255.0.28
B. 255.255.255.0
C. 255.255.255.28
D. 255.255.255.248
E. 255.255.255.252 答案及讲解收听序号: 16861000－7－04 top 5.Cisco supports three types of switching modes on switches. Which mode of switching can have a variable
latency through the switch? A. Store-and-forward.
B. Cut-through.
C. Fragment-free. 答案及讲解收听序号: 16861000－7－05 top
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