CCNA 640-802（Cisco Certified Network Associate(CCNA)）考試題庫由KillTest認證題庫網資深IT認證講師和CCNA產品專家結合PROMETRIC或VUE的真實640-802考試環境最新原題傾心打造。題庫覆蓋了當前最新的真實考題，並且全部附有正確答案，我們承諾題庫對CCNA 640-802(Cisco Certified Network Associate(CCNA))考試原題完整覆蓋。640-802題庫助您輕鬆通過認證考試，壹次不過全額退款。
CCNA 640-802(Cisco Certified Network Associate(CCNA))考題由我們的資深IT認證講師和CCNA產品專家精心打造，包括了當前最新的真實640-802考題，全部附有正確答案。所有購買KillTest 640-802 題庫的客護都將得到60天的免費升級服務，保證了客護的壹次通過率。
KillTest IT認證題庫網助您壹次通過CCNA 640-802考試。CCNA 640-802部分考試如下：
1. You are a network administrator at TestInside.com, in order to improve the security of TestInside’s switching network,refer to the following options. Which two methods are examples of implementing Layer 2 security on a Cisco switch? (Choose two.)
A. disable trunk negotiation on the switch
B. use only protected Telnet sessions to connect to the Cisco device
C. configure a switch port host where appropriate
D. enable HTTP access to the switch for security troubleshooting
Answer: AC
2. A single 802.11g access point has been configured and installed in the center of a square shaped TestInside office. A few wireless TestInside users are experiencing slow performance and drops while most users are operating at peak efficiency. From the list below, what are three likely causes of this problem? (Choose three)
A. mismatched TKIP encryption
B. null SSID
C. cordless phones
D. mismatched SSID
E. metal file cabinets
F. antenna type or direction
Answer: CEF
3. Refer to the exhibit. The two connected ports on the TIS-S are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)
A. Ensure that the Ethernet encapsulations match on the interconnected TIS-R and TIS-S ports.
B. Ensure that cables A and B are straight-through cables.
C. Reseat all cables.
D. Ensure the TIS-S has power.
Answer: BCD
CCNA(Cisco Certified Network Associate)是Cisco售後工程師認證體系的入門認證，也是Cisco各項認證中級別最低的技術認證；通過CCNA，可證明妳已掌握網絡的基本知識，並能初步安裝、配置和操作Cisco路由器、交換機及簡單的LAN和WAN。CCNA近期大幅度更新考試系統，與以往每三年例行更新系統不同的是，此次考試內容將會做出較大調整。
CCNA考試將把原來屬於CCNP（思科認證資深網絡工程師）的壹部分內容增加進來。這其中，除了去掉原來不適用的部分課程以外，最重要的是將原來CCNP要求的內容，如OSPF（壹種路由協議）、EIGRP（壹種路由協議）、VLSM（可變長度的子網掩碼）以及NAT（網絡地址翻譯）等加入到CCNA的學習和認證要求中。Cisco Certified Network Associate(CCNA)(640-802 Exam)屬於CCNA認證考試中的壹門，如果需要取得CCNA證書，您可能還需要慘加其他相關考試，詳情可訪問CCNA認證專題，在那裡，妳將看到所有CCNA認證相關考試科目。