- How many usable IP addresses can you get from a conventional Class C address?Which one of the following characteristics is true regarding the use of hubs and switches?交换机上VLAN的功能描述中,正确的是
- 在路由表中到达同一网络的路由有：静态路由、RIP路由、IGRP路由,OSPF路由,则路由器会选用哪条路由传输数据：()You are a senior network administrator at Ezonexam, and while performing the password recovery pr
- 在OSPF的完全存根区域中,使用以下哪种LSAType报文或其它方式与区域间通信：（）关于OSPF中DR的说法不正确的是（）LSAType1.2
LSAType3
LSAType4
默认路由：0.0.0.0#通过hello报文选举DR
如果某路由器优先级比DR优先
- Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)查看E0端口配置信息的命令是：()OSI七层模型中,“包”是哪一层数
- TELNET工作在OSI哪一层（）TCP23是（）协议端口号；UDP69是（）端口号；TCP80是（）端口号。下面对Cisco2621路由器和Cisco2501路由器描述中,错误的是（）Your network uses the172.12.0.0 class B address. You need
- 为了查看路由器的E0端口上,是否挂接了访问权限表,应该使用的命令是（）命令“ping127.0.0.1”的功能是（）show access-list
show interface e0#
show ipinterface e0
show e0测试网卡是否正常
测试网关是否正常
测试TC
- 以下（）LSA类型是ASBR来宣告外部路由信息的。（）The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?下列哪一设备工作时,要用
- 下面哪个操作可以使访问控制列表真正生效（）。关于OSPF中DR的说法不正确的是（）能够分配给设备的IP,应该是（）RIP协议的管理距离是（）IP地址为：192.168.50.70,掩码为：255.255.255.248,则该IP地址所在子网的子网
- An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the i
- 常见的LSA有几种类型()IP地址为：192.168.50.70,掩码为：255.255.255.248,则该IP地址所在子网的广播地址为（）为了使配置私有IP的设备能够访问互联网,应采用的技术是()通配符掩码和子网掩码之间的关系是（）。Using
- 下面对Cisco2621路由器和Cisco2501路由器描述中,错误的是（）“InsideGlobal”地址在NAT配置里表示的是什么()The Ezonexam network administrator needs to determine what LAN devices to install on the Ezonexam ne
- A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?关于OSPF中DR的说法不正确的是（）All defined
- Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)After working all night and successfully configuring a Cis
- 对交换机的描述,正确的是（）OSPF的度量值是什么()单广播域,单冲突域的设备
单广播域,多冲突域的设备#
多广播域,单冲突域的设备
多广播域,多冲突域的设备跳数
接口开销
矢量距离
链路状态#BD
- 扩展ACL和标准ACL的区别（）。要把交换机的配置文件保存到tftp服务器,应使用的命令为（）为了使配置私有IP的设备能够访问互联网,应采用的技术是()标准的ACL在禁止和允许方面比扩展的ACL更高的精度
扩展的ACL核查数据
- 网络中经常使用DDN服务,请选出DDN的优点（）访问控制列表分为标准和扩展两种。下面关于ACL的描述中,错误的是()。在地址转换中,()用来规定哪些数据包需要进行地址转换当配置一个CISCO的路由器时,缺省的DR和BDR优先级
- What is the purpose of the Spanning Tree Protocol (STP)?网关的功能（）To prevent routing loops
To create a default route
To provide multiple gateways for hosts
To maintain a loop-free Layer 2 network
- CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)You are given a PC, a router, and a cable. Select the correct
- 备份路由器IOS的命令是：()RIP路由协议认为“网络不可到达”的跳数是：()PPP工作在OSI的哪一层（）copy flash tftp#
copy running-configt ftp
copy IOS tftp
copy startup-configt ftp8
16#
24
100物理层
数据链路层#
- 标准访问控制列表应被放置的最佳位置是在（）。OSI七层模型中,“段”是哪一层数据封装的名称（）在配置帧中继子接口时,在物理接口上应该配置的内容是：()After logging into a router and typing in a few show comman
- 在配置帧中继子接口时,在物理接口上应该配置的内容是：()The Ezonexam corporate LAN consists of one large flat network. You decide to segment this LAN into two separate networks with a router. What will b
- Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)路由器上,清空路由表的命令是（）Each de
- 在OSPF的DR/BDR选举过程中,在路由器有相同的接口优先级情况下,什么用于确定DR或BDR（）哪个命令可以成功测试网络：()IP扩展访问列表的数字标示范围是多少（）。把指定端口添加到VLAN的命令是：()对于IP为199.41.27.0
- 以下特殊区域中哪一个没有自动下发缺省路由（）介质工作在OSI的哪一层（）当在一个接口上使用ipaccess-group99in命令时,以下哪条关于所引用访问控制列表的描述是正确的（）末梢区域
完全末梢区域
NSSA区域
完全NSSA
- 配置路由器时,封装PPP协议的命令是：()How many usable IP addresses can you get from a conventional Class C address?路由器上端口fa0/0,其最大传输速率是（）Mbit/s访问控制列表分为标准和扩展两种。下面关于ACL
- 下列关于路由器和交换机的描述中,错误的是（）The Ezonexam network administrator wants to ensure that only a single web server can connect to pot Fa0/1 on a catalyst switch. The server is plugged into th
- On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)命令ip nat pool aaa
- You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)如果把路由器的某个端口的IP配置
- 要把交换机的配置文件保存到tftp服务器,应使用的命令为（）命令“ping127.0.0.1”的功能是（）Which of the following are types of flow control? (Choose three)路由器下,由一般用户模式进入特权用户模式的命令是：
- Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?为了查看路由器的E0端口上,是否挂接了访问权限
- After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return
- Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)路由器当前的模式为“端口模式”,要退回到“
- 某台PC,能ping通路由器,但不能telnet到路由器,可能的原因是（）FTP工作在OSI哪一层（）PC的IP地址设置错误
路由器端口IP设置错误
路由器端口处于关闭状态
telnet密码未设置#会话层
表示层
传输层
应用层#DD
- IP地址为：192.168.50.70,掩码为：255.255.255.248,则该IP和掩码结合,共划分了多少个子网（不包括全0子网和全1子网）（）TELNET工作在OSI哪一层（）路由器的配置文件startup-config存放在()里8
30#
6
14会话层
表示
- You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?Why is full-duplex Etherne
- RIP协议负载均衡的路径数量为（）Cisco IOS命令ip nat inside source static 10.1.1.5 172.35.16.5的作用是什么()路由器上的命令“show version”的功能是（）介质100BaseT的最大传输距离是：()Which type of cable sh
- 属于私有IP段的是()OSI七层模型中,数据链路层的数据封装名称为（）You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a termi
- 帧中继环境中,在物理端口上,建立子接口的命令是（）How can a Ezonexam administrator determine if a router has been configured when it is first powered up?路由器上激活端口的命令是（）create
interface#
enc
- 网关的功能（）在OSPF的DR/BDR选举过程中,在路由器有相同的接口优先级情况下,什么用于确定DR或BDR（）过滤数据包
不同网段通信#
校验数据帧
把数据封装成“段”最高的OSPF进程ID
最低的接口IP地址
最低的接口开销
路由
- You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?OSI七层模型中,传输层的数据封装名称为
