思科公司简介
1984年12月，思科系统公司在美国成立。1986年，思科第一台多协议路由器面市，1993年，世界上出现一个有1000台思科路由器连成的互联网 络，思科系统公司也从此进入了一个迅猛发展的时期。目前互联网上近80%的信息流量经由思科系统公司的产品传递。思科已经成为毋庸置疑的网络领导者。思科 系统公司目前在全球拥有35000多名雇员，2004年的营业额超过220 亿美元。

产品与服务
Cisco Systems, Inc. 思科系统公司是全球领先的互联网设备供应商。它的网络设备和应用方案将世界各地的人、计算设备以及网络联结起来，使人们能够随时随地利用各种设备传送信 息。思科公司向客户提供端到端的网络方案，使客户能够建立起其自己的统一信息基础设施或者与其他网络相连。
思科公司提供业界范围最广的网络硬件产品、互联网操作系统(IOS)软件、网络设计和实施等专业技术支持，并与合作伙伴合作提供网络维护、优化等方面的技 术支持和专业化培训服务。
思科的总部位于美国加利福尼亚州的圣何塞，在马萨诸塞州的Chelmsford和北卡罗来纳州研究三角园(Research Triangle Park)的分部负责思科公司部分重要的业务运作。

640-802 考试是 Cisco 公司的 Cisco Certified Network Associate 认证考试官方代号，Cisco Certified Network Associate 认证作为全球IT领域专家 Cisco 640-802 考试资讯，是许多大中 IT企业选择人才标准的必备条件。

Testinside考题大师640-802试题都是考试原题的完美组合，覆盖率95％以上，答案由多位专业资深讲师原版破解得出，正确率 100％，只要您使用本站的考试题库参加640-802 考试，我们保证您一次轻松通过考试；

下载640-802免费考题
1. What are two reasons a network administrator would use CDP? (Choose two.)
A. to verify the type of cable interconnecting two devices
B. to determine the status of network services on a remote device
C. to obtain VLAN information from directly connected switches
D. to verify Layer 2 connectivity between two devices when Layer 3 fails
E. to obtain the IP address of a connected device in order to telnet to the device
F. to determine the status of the routing protocols between directly connected routers
Answer: DE

2. A network administrator is explaining VTP configuration to a new technician. What should the network administrator tell the new technician about VTP configuration? (Choose three.)
A. A switch in the VTP client mode cannot update its local VLAN database.
B. A trunk link must be configured between the switches to forward VTP updates.
C. A switch in the VTP server mode can update a switch in the VTP transparent mode.
D. A switch in the VTP transparent mode will forward updates that it receives to other switches.
E. A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number.
F. A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.
Answer: ABD

3. Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two.)
A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config
Answer: BD

4. Refer to the exhibit. Which two statements are true about the loopback address that is configured on RouterB? (Choose two.)
A. It ensures that data will be forwarded by RouterB.
B. It provides stability for the OSPF process on RouterB.
C. It specifies that the router ID for RouterB should be 10.0.0.1.
D. It decreases the metric for routes that are advertised from RouterB.
E. It indicates that RouterB should be elected the DR for the LAN.
Answer: BC

5. Refer to the exhibit. Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)
A. Host E and host F use the same IP gateway address.
B. Router1 and Switch2 should be connected via a crossover cable.
C. Router1 will not play a role in communications between host A and host D.
D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.
E. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.
F. The FastEthernet 0/0 interface on Router1 and Switch2 trunk ports must be configured using the same encapsulation type.
Answer: D

相关考试：
642-983 Cisco Data Center Unified Computing Support Specialist

思科系统公司（Cisco Systems, Inc.），是互联网解决方案的领先提供者，其设备和软件产品主要用于连接计算机网络系统。

Cisco认证体系
思科认证构架师（Cisco Certified Architect ，CCA）
CCIE 思科认证网络专家 (Cisco Certified Internetwork Expert)
CCDE思科网络设计专家级别（Cisco Certified Design Expert）
CCNP 思科认证资深网络工程师(Cisco Certified Network Professional)
CCDP 思科认证资深设计工程师(Cisco Certified Design Professional)
CCIP 思科认证资深互联网工程师(Cisco Certified Internetwork Professional)
CCSP 思科认证资深安全工程师(Cisco Certified Security Professional)
CCVP 思科认证资深语音工程师(Cisco Certified Voice Professional)
CCNA 思科认证网络工程师(Cisco Certified Network Associate)
CCDA 思科认证设计工程师(Cisco Certified Design Associate)

从80年代开始，迅猛发展的IT技术在二十多年的时间里彻底的改变了这个世界。人们开始习惯于生活中无处不在的网络：从现金购物到信用卡消费，从面 对面的交易到网上订单，从阅读报纸杂志到浏览网页……等等，网络以其巨大的推动力颠覆了传统，人们开始以全新的方式工作、学习甚至生活、娱乐。

* 科目编号：642-892
* 科目名称：Composite Exam
* 考题数目：314 Q&As
* 更新日期：2010-07-15
* 价 格 ：￥ 413.00

部分考题：
1. Refer to the exhibit. Which two statements are correct? (Choose two.)
A. All six routes will be installed in the routing table.
B. Two routes will be installed in the routing table.
C. Four routes will be installed in the routing table.
D. All the routes were redistributed into BGP from an IGP.
E. All the routes were originated by BGP with the network command.
Answer: CD

2. Refer to the exhibit. EIGRP has been configured on all routers in the network. What additional configuration statement should be included on router R4 to advertise a default route to its neighbors?
A. R4(config)# ip default-network 10.0.0.0
B. R4(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1
C. R4(config)# ip route 10.0.0.0 255.0.0.0 10.1.1.1
D. R4(config-router)# default-information originate
Answer: A

3. If a metric is not specified for routes that are redistributed into OSPF, the default metric that is assigned to the routes is 20, except for redistributed BGP routes. What is the metric that is assigned to redistributed BGP routes?
A. 0
B. 1
C. 10
D. 200
Answer: B

Composite Exam 认证作为全球IT领域专家 Cisco 热门认证之一，是许多大中IT企业选择人才标准的必备条件。 如果你正在准备 642-892 考试，为 Cisco Composite Exam认证做最后冲刺，又苦于没有绝对权威的考试真题模拟， TestInside 希望能助你成功。

Testinside 642-892题库根据642-892考试的变化动态更新，在厂家考题每次发生变化后，我们承诺2天内更新642-892题库。确保642-892考题的 覆盖率始终都在95％以上；我们提供2种 642-892 考题大师版本供你选择。

相关考试：
050-696 Foundations of Novell Open Enterprise Server NetWare