Có 40+ tài liệu thuộc chủ đề "Chứng chỉ quốc tế"
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Building Cisco Remote Access Networks (BCRAN). When is ISDN BRI a viable option as a remote access solution?. A mobile user that needs access to the central site while traveling.. A branch office requires at least 300kbps bandwidth to the central site.. Reference: Building Cisco Remote Access Networks (Ciscopress) page 83. Reference: Building Cisco Remote Access Networks (Ciscopress) page 21....
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Fravo.com. [email protected]. http://www. fravo.com 1. If you use this study guide correctly and still fail the exam, send a scanned copy of your official score notice at: [email protected]. http://www.fravo.com. fravo.com 2. http://www.cisco.com/en/US/products/hw/switches/ps5206/products_configuration_guide_chapter 09186a008017ff97.html. fravo.com 3. http://www.cisco.com/en/US/products/hw/optical/ps2011/prod_technical_reference09186a00800a 8655.html#998751. http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter0 9186a008007e701.html. fravo.com 4. http://www.cisco.com/en/US/tech/tk828/tk363/technologies_white_paper09186a0080092942.sht ml. fravo.com 5. http://www.cisco.com/en/US/products/sw/cscowork/ps2064/products_user_guide_chapter09186a0 0800e0a04.html. http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter0 9186a00800f4ff2.html. fravo.com 6. Port Mode Encapsulation Status Native VLAN fa0/1 desirable n-802.1q...
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Each section starts with QUESTION NO :1. QUESTION NO: 1. QUESTION NO: 2. QUESTION NO: 3. QUESTION NO: 4. QUESTION NO: 5. this mechanism is described in the “IP QoS – Traffic Shaping and Policing” module. this mechanism is described in the. QUESTION NO: 6. QUESTION NO: 7. QUESTION NO: 8. QUESTION NO: 9 Exhibit:. random-detect exponential-weighted-constant 11 Based on...
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IS-IS 路由协议中文教程 v1.0. 1、 OSI 协议和 IS-IS 路由协议简介. 2、 IS-IS 路由协议工作原理. 3、 通过集成的 IS-IS 路由协议实现 IP 与 OSI 协议的路由. 4、 集成的 IS-IS 路由协议配置与排故. ES（End system）端系统，没有路由能力（称“数据包转发能力”更恰当）的网络节点. IS（Intermediate System）中间系统，有数据包转发能力的网络节点，即路由器. Area 区域，由一组连续的路由器、主机和连接它们的网络链路组成的实体. （第二单元 基本的 IS-IS 路由协议）. IS-IS 路由协议中的路由信息分为四级：. 1、 Level-0 存在于 ES 与 IS 之间，准确的讲不算路由协议，我们可以称它为 Discovery Protocol 发现协议，类似于 TCP/IP 网络中的 ARP 地址解释协议. 2、Level-1 存在于同一区域内的多台路由器之间，用于实现区域内路由，类似于 OSPF 的域. 内路由（O）. 3、Level-2 存在于同一域内的多台路由器之间，用于实现域内路由，类似于 OSPF 的域间路. 4、Level-3 存在于不同的域之间，类似于...
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QUESTION 3 By default, NOT using the next-hop-self option, what is the next-hop for the BGP updates shown in the diagram?. Certkiller1-Certkiller2 Next Hop 10.1.1.1 This is an EBGP connection. Certkiller4-Certkiller5 Next Hop 10.4.4.1 This is an EBGP connection. Certkiller3-Certkiller4 Next Hop 10.1.1.1 This is an IBGP connection. neighbor 10.1.1.2 remote-as 65102 neighbor remote-as 65101 network . neighbor 10.1.1.2 remote-as...
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SYBEX is not the agent or principal of the Owner(s), and SYBEX is in no way responsible for providing any support for the Soft- ware, nor is it liable or responsible for any support pro- vided, or not provided, by the Owner(s).. Cisco calls these “the old alphabet soup products.”. Now, you can become a Cisco Certi- fied Network Associate...
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Internetworking—the communication between two or more networks—encompasses every aspect of connecting computers together. Large internetworks can consist of the following three distinct components:. This is the base fabric of the network.. Recently, traditional shared-media networks are being overtaxed because of the following new network requirements:. Explosive growth of the corporate intranets. Distributed applications are increasingly bandwidth hungry, and the emergence...
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What is Network Management?. Network Management’s Network Management’s. Current Network Management Current Network Management. You can manage a device with SNMP, not a network Remember - Simple Network Management Protocol. WBEM WBEM Network Management Network Management Architecture. WBEM Built Upon DMTF’s DMTF’s CIM CIM. It may be helpful to think of CIM as standard and extended MIBs that also include...
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如何在 1 个交换性的网络里,分割广播域呢?答案是创建 VLAN.VLAN 是连接到定义好了的. switch 的端口的网络用户和资源的逻辑分组.给不同的子网分配不同的端口,就可以创建更小. 的广播域.默认情况下,在某个 VLAN 中的主机是不可以与其他 VLAN 通信的,除非你使用 router 来创建 VLAN 间的通信. VLAN 的一些特点:. 1.网络的增加,移动和改变,只需要在适当的 VLAN 中配置合适的端口. 3.因为 VLAN 可以被认为是按功能划分的逻辑分组,所以 VLAN 和物理位置,地理位置无关. 2.在网络上运行的应用程序 3.这些服务如何的被使用. 1.可以不管物理位置如何,把适当的端口分配到适当的 VLAN 中就可以了.可以把 VLAN 理. 2.当 VLAN 增加的太大以后,你可以划分更多的 VLAN,来减少广播消耗掉更多带宽的影响, 在 VLAN 中的用户越少,被广播影响的就越少. 来比较下下面 2 个图,明显可以发现,图 2,即 VLAN 的具有更高的灵活性和可扩展性,如下:. 手动由管理员分配端口划分的 VLAN 叫静态 VLAN(static VLAN);使用智能管理软件,动态划 分 VLAN 的叫动态 VLAN(dynamic VLAN). 静态 VLAN:静态 VLAN 安全性较高,手动划分端口给...
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(telecommunication)机房,由电信公司所拥有.用户这边连接到 CSU/DSU 或者 ISDN 接口来扩. 3.本地回路(local loop):把分界点连接到 1 个叫做 central office(CO)的交换机房 4.CO:连接用户到服务商交换环境网络的点,有时候 CO 也叫做 point of presence(POP) 5.toll network:Internet service provider(ISP)拥有,各种网络设备资源集合的网络. WAN 连接的一些类型,如下图:. 1 为租用线路,有时候也叫专线或点对点连接.预先布置好的通信路径,该路径从客户端通过电 信公司的网络连接到远程网络.因为这样的通信线路通常是通过从电信公司租用而来,所以就. 3 为包交换(或者翻译为分组交换),用户共享电信公司资源,成本较低.在这样的网络中,网络连 接电信公司网络,许多客户共享电信公司网络.然后电信公司在客户站点之间建立虚拟线路, 数据包通过网络进行传输.这类例子有帧中继,ATM,X.25 等.速度可以从 56Kpbs 达到 T3 的 45Mbps,如下图:. 拨号(dial-up)上网的速度感到不满的时候，你可以使用 ISDN 的方式.ISDN 也可作为比如帧 中继或者 T1 连接的备份连接. 3.平衡链路访问过程(Link Access Procedure,Balanced,LAPB):工作在 OSI 参考模型的数据链路 层,是 1 种面向连接的协议,一般和 X.25 技术一起进行数据传输.因为它有严格的窗口和超时 功能,所以使得代价很高. 相比 LAPB,HDLC 成本较低.HDLC 不会把多种网络层的协议封装在同 1 个连接上.各个厂商....
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00 CCNA Exam_FM.fm Page i Thursday, March AM. Argentina • Australia • Austria • Belgium • Brazil • Bulgaria • Canada • Chile • China • Colombia • Costa Rica • Croatia • Czech Republic • Denmark • Dubai, UAE • Finland • France • Germany • Greece • Hong Kong • Hungary • India • Indonesia • Ireland Israel...
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By deciding that you want to become Cisco certified, you are saying that you want to be the best—the best at routing and the best at switching. (The answers are at the end of the test.) It’s OK if you don’t know any of the answers. Answer all of the review questions related to that chapter. Cisco calls these “the...
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SYBEX is not the agent or principal of the Owner(s), and SYBEX is in no way responsible for providing any support for the Soft- ware, nor is it liable or responsible for any support pro- vided, or not provided, by the Owner(s).. Cisco calls these “the old alphabet soup products.”. Now, you can become a Cisco Certi- fied Network Associate...
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00 CCNA Exam_FM.fm Page i Thursday, March AM. Argentina • Australia • Austria • Belgium • Brazil • Bulgaria • Canada • Chile • China • Colombia • Costa Rica • Croatia • Czech Republic • Denmark • Dubai, UAE • Finland • France • Germany • Greece • Hong Kong • Hungary • India • Indonesia • Ireland Israel...
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www.cisco.com BSCN—1-2. www.cisco.com BSCN—1-3. www.cisco.com BSCN—1-4. www.cisco.com BSCN—1-5. www.cisco.com BSCN—1-6. www.cisco.com BSCN—1-7. www.cisco.com BSCN—1-8. www.cisco.com BSCN—1-9. www.cisco.com BSCN—1-10. www.cisco.com. http://www.cisco.com. www.cisco.com BSCN—1-14. www.cisco.com BSCN—2-2. www.cisco.com BSCN—2-3. Core—The core is the central internetwork for the entire enterprise and may include LAN and WAN backbones. www.cisco.com BSCN—2-4. www.cisco.com BSCN—2-5. www.cisco.com BSCN—2-6. www.cisco.com BSCN—2-7. www.cisco.com BSCN—2-8. Route summarization—The number of entries in a...
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Terminal Services Installation and Deployment. to receive only the display and user interaction logic — key strokes and mouse clicks at the terminal — while all processing, execution, and storage access takes place on the server. Essentially, this data is miniscule and does not need significant bandwidth (10 to 28Kbps) to travel between the client and the server. The server...
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Windows 2000 Server. Welcome to Windows 2000 Server. Windows 2000 changes all that. In fact, Windows 2000 is the navy.. In This Chapter Windows 2000 Server Architecture Integrating Windows 2000 Server. Windows ZAW and Total Cost of Ownership Windows 2000 Server Collateral Services. Today, no operating system competes with the vastness of Windows 2000 Server.. Before we look into the...
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Active Directory. T he directory service has become one of the hottest new technologies on corporate networks. Microsoft, a new member of the directory service club, has created a directory service on which almost its entire product line depends.. In the 1980s, with the advent of the PC LAN, many files were located on remote machines, and there were definitive...
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Windows 2000 Security. T his chapter starts you off with a discussion on the need for powerful distributed security before introducing you to the specifics of Windows 2000 distributed security services.. It also reviews the new Windows 2000 security protocols, and protection of services and data.. But before we get into Windows 2000 security specifics, let’s look at the problem...
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Windows 2000 Server. This chapter covers planning for Windows 2000 Server and takes you through the steps required to formulate and execute a deployment plan.. Microsoft should release the first service pack or two to Windows 2000 before you touch it. You need to install Windows 2000 Server now. Why the rush? Windows 2000 Server is a shocker. You can...