Cisco 642-243 认证题库

Cisco考试代码: 642-067
考试名称: Advanced Routing and Switching for Field Engineers

Cisco是由网络领域著名的厂商–Cisco公司推出的。是互联网领域的国际权威认证。思科认证有CCNA、CCDA、CCNP、CCDP、CCSP、CCIP、CCVP、CCIE（又分为针对路由和交换；语音；存储网络；安全；电信运营商）等多种不同级别、不同内容、不同方向的各种认证。

Others 642-067考试题库由我们专业IT认证讲师及产品专家精心打造，包括了当前最新的全真642-067考试试题，全部附有正确答案。
 

免费下载 TestInside 测试引擎

软件版本642-067 考试题库
优点：具有学习模式，测试模式，线上自动升级
缺点：仅限固定电脑使用，不可打印为文本，只能PC阅读

TestInside认证考试题库网专业提供Cisco 642-067 最新题库下载，完全覆盖 642-067 考试原题。

642-901 Exam
Building Scalable Cisco Internetworks
科目编号：642-901
科目名称：Building Scalable Cisco Internetworks
考题数目：247 Q&As
更新日期：2010-1-27

Exam : Cisco 642-901
Title : BSCI – Building Scaleable Cisco Internetworks

1. Into which two types of areas would an area border router (ABR) inject a default route? (Choose two.)
A. the autonomous system of a different interior gateway protocol (IGP)
B. area 0
C. totally stubby
D. NSSA
E. stub
F. the autonomous system of an exterior gateway protocol (EGP)
Answer: CE

2. If no metric is specified for the routes being redistributed into IS-IS, what metric value is assigned to the routes?
A. 0
B. 1
C. 10
D. 20
Answer: A

3. Which three restrictions apply to OSPF stub areas? (Choose three.)
A. No virtual links are allowed.
B. The area cannot be a backbone area.
C. Redistribution is not allowed unless the packet is changed to a type 7 packet.
D. The area has no more than 10 routers.
E. No autonomous system border routers are allowed.
F. Interarea routes are suppressed.
Answer: ABE

4. Refer to the exhibit. Which statement is true about the 6.6.6.0/24 prefix?
A. If another path advertises the 6.6.6.0/24 path and has the default  local preference, that path is more preferred.
B. The command neighbor send-community is configured on BGP neighbor 10.10.23.3.
C. The route 10.10.23.3 is not being advertised to other BGP neighbors.
D. Route 6.6.6.0/24 is learned by an IBGP peer.
Answer: B

5. 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

6. Refer to the exhibit. Which three statements accurately describe the result of applying the exhibited route map? (Choose three.)
A. The map prohibits the redistribution of all type 2 external OSPF routes with tag 6 set.
B. The map prohibits the redistribution of all type 2 external OSPF routes.
C. The map redistributes into EIGRP all routes that match the pfx prefix list and the five metric values40000, 1000, 255, 1, and 1500.
D. The map prohibits the redistribution of all external OSPF routes with tag 6 set.
E. All routes that do no match clauses 10 and 20 of the route map are redistributed with their tags set to 8.
F. The map permits the redistribution of all type 1 external OSPF routes.
Answer: AEF

7. 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

8. What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network in the show ip bgp command output? (Choose two.)
A. The network was originated via redistribution of an interior gateway protocol into BGP.
B. The network was defined by a static route.
C. The network was originated via a network or aggregate command.
D. The network was learned via EBGP.
E. The network was learned via IBGP.
Answer: AC

相关热门科目： 000-432 ，1z0-213   ，  LOT-838    ，351-001

分享 Pass4Side的Cisco 642-681权威考试题库：

642-681 Exam
Advanced Wireless LAN for System Engineers Exam
科目编号：642-681
科目名称：Advanced Wireless LAN for System Engineers Exam
考题数目：93 Q&As
更新日期：2010-1-18

1. The CiscoWorks Wireless LAN Solution Engine uses which protocol for radio management?
A. CCKM
B. LWAPP
C. SNMP
D. WLCCP
Answer: D
2. Which two key features are unique to the controller-based feature set? (Choose two.)
A. fast secure roaming
B. rogue access point detection
C. access point participation in RF management
D. access point registration via digital certificate
E. dynamic RF control without a dedicated management platform
Answer: DE
3. The Newton manufacturing company has three facilities that are located in Columbia, South Carolina.
The corporate office is located in an 11-story building downtown. The R&D facility is located on the north
side of the city approximately 4 miles (6.4 km) from the corporate office in a five-story building. The
manufacturing facility is located approximately 6 miles (9.6 km) to the northwest of the corporate office. Line
of sight exists from the downtown office to all facilities. Users at the manufacturing plant require network
connectivity for file sharing and e-mail, while the users at the R&D facility require high-speed Internet
access with the ability to send large CAD drawings to the corporate office and large machine control files to
the manufacturing facility. Presently, the manufacturing facility is connected to the corporate office by a
64-kbps leased line, and the R&D facility is connected to both the corporate office and the manufacturing
facility by a dedicated T1 line. The company plans to add a second line of development at the R&D facility
within the next 60 days. The current T1 lines are at a constant 70-percent utilization rate. The current
projected lead time for installation of additional lines is 90 days if the current cable plant will support it.
A wireless bridging solution would provide which three benefits to the customer? (Choose three.)
A. rapid deployment
B. immunity to weather
C. increased bandwidth
D. guaranteed bandwidth
E. increased security
F. lower total cost of ownership
Answer: ACF
4. In a mesh network, what is the recommended hop-count limit of a mesh access point from its associated
root access point?
A. 2
B. 4
C. 6
D. 8
Answer: B
5. How is a bridge group name used in a wireless mesh deployment?
A. It is used to retrieve the secret shared key.
B. It logically groups access points to avoid interference from neighboring mesh networks.
C. It is used as a password in communication preceding LWAPP.
D. It is used to join the outdoor mesh network with the controller mobility group.
Answer: B
6. The Cisco 3200 Series Mobile Access Router has integrated wireless support for which two
FCC-approved frequency ranges? (Choose two.)
A. 900 to 928 MHz
B. 2.400 to 2.4835 GHz
C. 4.940 to 4.990 GHz
D. 5.150 to 5.250 GHz
E. 5.725 to 5.825 GHz
Answer: BC
7. Which three wireless intrusion-prevention signatures are part of the standard signature set provided by
the Wireless LAN Controller? (Choose three.)
A. ad-hoc network detection
B. rogue network detection
C. rogue access point detection
D. deauth flood detection
E. fake access point detection
F. NetStumbler detection
Answer: DEF
8. A customer has a small remote site with 10 standalone access points. In which two of the following
scenarios would it be appropriate to implement CiscoWorks WLSE Express? (Choose two.)
A. EAP-Cisco Wireless (Cisco LEAP) security is required and an external AAA server is available.
B. EAP-Cisco Wireless (Cisco LEAP) security is required and no external AAA server is available.
C. EAP-FAST security is required and no external AAA server is available.
D. EAP-FAST security is required and an AAA server is available.
E. MAC authentication is required and no external AAA server is available.
F. MAC authentication is required and an external AAA server is available.
Answer: BC
9. What is the Cisco-recommended limit of standalone access points to be managed by a CiscoWorks
WLSE 1130-19 with RF management enabled?
A. 1000
B. 1500
C. 1800
D. 2500
Answer: C
10. What is the maximum number of access points that a high-end Cisco WCS server can support?
A. 500
B. 1000
C. 1500
D. 3000
Answer: D

相关热门科目：HP0-648           70-281           HP0-M15           E22-310

642-812 Exam
Building Cisco Multilayer Switched Networks
科目编号：642-812
科目名称：Building Cisco Multilayer Switched Networks
考题数目：227 Q&As
更新日期：2010-1-18

Exam : Cisco  642-812
Title : BCMSN – Building Converged Cisco Multilayer Switched Networks

1. Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone?
A. Effectively the trust boundary has been moved to the IP phone.
B. The host is now establishing the CoS value and has effectively become the trust boundary.
C. The switch is rewriting packets it receives from the IP phone and determining the CoS value.
D. The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set the CoS.
E. RTP will be used to negotiate a CoS value based upon bandwidth utilization on the link.
Answer: A

2. Which statement about the Lightweight Access Point Protocol (LWAPP) is true?
A. LWAPP encrypts control traffic between the AP and the controller.
B. LWAPP encrypts user traffic with a x.509 certificate using AES-CCMP.
C. LWAPP encrypts both control traffic and user data.
D. When set to Layer 3, LWAPP uses a proprietary protocol to communicate with the Cisco Aironet APs.
Answer: A

3. Which statement is true about IP telephony calls?
A. A Voice over IP (VoIP) packet consists of the voice payload, IP header, TCP header, RTP header, and Layer 2 link header.
B. The voice carrier stream uses H.323 to set up, maintain, and tear down call endpoints.
C. Call control signaling uses Real-Time Transport Protocol (RTP) packets that contain actual voice samples.
D. The sum of bandwidth necessary for each major application, including voice, video, and data, should not exceed 75 percent of the total available bandwidth for each link.
Answer: D

4. Which statement is true about RSTP topology changes?
A. Any change in the state of the port generates a TC BPDU.
B. Only nonedge ports moving to the forwarding state generate a TC BPDU.
C. If either an edge port or a nonedge port moves to a block state, then a TC BPDU is generated.
D. Only nonedge ports moving to the blocking state generate a TC BPDU.
E. Any loss of connectivity generates a TC BPDU.
Answer: B

5. Which three WLAN statements are true? (Choose three.)
A. A lightweight AP receives control and configuration from a WLAN controller to which it is associated.
B. A WLAN client that is operating in half-duplex mode will delay all clients in that WLAN.
C. Ad hoc mode allows mobile clients to connect directly without an intermediate AP.
D. Another term for infrastructure mode is independent service set (IBSS).
E. The Aironet 1230 access point is an example of an access point that operates solely as a lightweight access point.
F. WLANs are designed to share the medium and can easily handle an increased demand of channel contention.
Answer: ABC

6. Refer to the exhibit. What is the effect when the switchport priority extend cos 3 command is configured on the switch port interface connected to the IP phone?
A. Effectively, the trust boundary has been moved to the PC attached to the IP phone.
B. The computer is now establishing the CoS value and has effectively become the trust boundary.
C. The IP phone is enabled to override with a CoS value of 3 the existing CoS marking of the PC attached to the IP phone.
D. The switch will no longer tag incoming voice packets and will extend the trust boundary to the distribution layer switch.
E. RTP will be used to negotiate a CoS value based upon bandwidth utilization on the link.
Answer: C

7. Refer to the exhibit. Switch S1 has been configured with the command spanning-tree mode rapid-pvst. Switch S3 has been configured with the command spanning-tree mode mst. Switch S2 is running the IEEE 802.1D instance of Spanning-Tree. What will be the result?
A. IEEE 802.1w, and IEEE 802.1s are compatible. IEEE 802.1d is incompatible. Switches S1 and S3 will be able to pass traffic between themselves. Neither will be able to pass traffic to Switch S2.
B. Switches S1, S2, and S3 will be able to pass traffic between themselves.
C. Switches S1, S2, and S3 will be able to pass traffic between themselves. However, if there is a topology change, Switch S2 will not receive notification of the change.
D. IEEE 802.1d, IEEE 802.1w, and IEEE 802.1s are incompatible. All three switches must use the same standard or no traffic will pass between any of the switches.
Answer: B

8. Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result?
A. Switches S1 and S3 will be able to exchange traffic but neither will be able to exchange traffic with Switch S2
B. Switches S1, S2, and S3 will be able to pass traffic between themselves. However, if there is a topology change, Switch S2 will not receive notification of the change.
C. Switches S1, S2, and S3 will be able to pass traffic among themselves.
D. IEEE 802.1D and IEEE 802.1w are incompatible. All three switches must use the same standard or no traffic will pass between any of the switches.
Answer: C

相关热门科目：E22-250            A00-201           A01-250             050-718

640-802 Exam
Cisco Certified Network Associate
科目编号：640-802
科目名称：Cisco Certified Network Associate
考题数目：289 Q&As
更新时间 : 2010-1-16

640-802 考试是 Cisco  公司的 Cisco Certified Network Associate 认证考试官方代号，pass4side 的 640-802 权威考试题库软件是 Cisco 认证厂商的授权产品，pass4side 绝对保证第一次参加 640-802 考试的考生即可顺利通过，否则承诺全额退款！

Exam : Cisco 640-802
Title : Cisco Certified Network Associate

1. Refer to the exhibit. What could be possible causes for the “Serial0/0 is down” interface status? (Choose two.)
A. A Layer 1 problem exists.
B. The bandwidth is set too low.
C. A protocol mismatch exists.
D. An incorrect cable is being used.
E. There is an incorrect IP address on the Serial 0/0 interface.
Answer: AD

2. 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: DF

3. 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

4. What are two benefits of using VTP in a switching environment? (Choose two.)
A. It allows switches to read frame tags.
B. It allows ports to be assigned to VLANs automatically.
C. It maintains VLAN consistency across a switched network.
D. It allows frames from multiple VLANs to use a single interface.
E. It allows VLAN information to be automatically propagated throughout the switching environment.
Answer: CE

5. Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two.)
A. RAM
B. NVRAM
C. flash memory
D. HTTP server
E. TFTP server
F. Telnet server
Answer: CE

6. 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

7. 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

8. 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

相关热门认证考试：