Which two statements are characteristi...

多项选择题Which two statements are characteristics of a distance vector routing protocol?（）

A.RIP is an example of distance vector routing protocols
B.Updates are periodic and include the entire routing table
C.Routing updates are sent only after topology changes
D.The protocol can be useful in hub-and-spoke and hierarchical networks
E.Convergence is usually faster than with link state protocols
F.Each router has its own view of the topology

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1.多项选择题What are three valid reasons to assign ports to VLANs on a switch？（）

A.to make VTP easier to implement
B.to isolate broadcast traffic
C.to increase the size of the collision domain
D.to allow more devices to connect to the network
E.to logically group hosts according to function
F.to increase network security

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2.单项选择题 请参见图示，主机A ping接口S0/0的router3，什么是该ping的TTL值？（）

A. 253
B. 252
C. 255
D. 254

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3.单项选择题Which command enhances the 802.1D convergence time on ports that are connected to hosts?（）

A.spanning-tree backbonefast
B.spanning-tree uplinkfast
C.spanning-tree portfast
D.spanning-tree cost512

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4.多项选择题 Refer to the exhibit.The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems？（）

A.Configure the gateway on Host A as 10.1.1.1.
B.Configure the gateway on Host B as 10.1.2.254.
C.Configure the IP address of Host A as 10.1.2.2.
D.Configure the IP address of Host B as 10.1.2.2.
E.Configure the masks on both hosts to be 255.255.255.224.
F.Configure the masks on both hosts to be 255.255.255.240.

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5.单项选择题Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?（）

A.802.3ad
B.802.1w
C.802.1Q
D.802.1d

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6.单项选择题Which command helps a network administrator to manage memory by displaying flash memory andNVRAM utilization?（）

A.show secure
B.show file systems
C.show flash
D.show version

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7.多项选择题以下哪项描述了WAN设备的角色？（）

A.CSU/ DSU用于端接本地数字环路
B.调制解调器端接本地数字环路
C.一个CSU/ DSU终止模拟本地环路
D.调制解调器终止模拟本地环路
E.路由器通常被视为DTE设备
F.路由器通常被视为DCE设备

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8.单项选择题OSI中那一层负责决定一个进程的可用性并查看是否有可用的资源分给该进程？（）

A.传输
B.网络
C.表示
D.会话
E.应用

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9.多项选择题A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1？（）

A.Configure port Fa0/1 to accept connections only from the static IP address of the server.
B.Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
C.Configure the MAC address of the server as a static entry associated with port Fa0/1.
D.Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E.Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F.Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.

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10.多项选择题The network technician is planning to use the 255.255.255.224 subent mask on the network.which three valid IP addresses can the technician use for the hosts?（）

A.172.22.243.127
B.172.22.243.191
C.172.22.243.190
D.10.16.33.98
E.10.17.64.34
F.192.168.1.160

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