Cicso 642-871 ARCH braindumps for share
January 9th, 2010
Exam Number: 642-871
Associated Certifications: CCDP
Duration: 90 minutes (55-65 questions)
Available Languages: English
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642-871 ARCH Exam Description
ARCH is a qualifying exam for the Cisco Certified Design Professional CCDP? certification. The ARCH exam will test on material covered under the Designing Cisco Network Service Architectures (ARCH) course. The exam assesses a candidate’s understanding of latest developments in network design and technologies. The exam covers topics on network infrastructure, intelligent network services, and converged network solutions.
642-871 ARCH Exam Topics
The following information provides general guidelines for the content likely to be included on the ARCH exam. However, other related topics may also appear on any specific delivery of the exam.
Design & Modeling
Design networks that provide network services and solutions using the Cisco AVVID Framework
Design a modular network based on Enterprise Composite Network Model
Explain how the following concepts apply to each module of the Enterprise Composite Network Model:
performance and scalability; availability; manageability; security; and cost-effectiveness
Design modules and/or sub-modules of the Enterprise Composite Network Model to meet defined standards of: performance and scalability; availability; and manageability
Define an appropriate Enterprise Network Management Strategy to meet given requirements
Define a security strategy that is based on the requirement of each functional area of the Enterprise Composite Network Model
Identify the need for high availability from network design requirements
Design a network topology to support VoIP
Design a network topology to support IP Multicasting
Design a wireless LAN network solution that meets IEEE 802.11 standards
Identify the need for Virtual Private Networking (VPNs) from network design requirements
Design suitable storage networking solutions using Cisco AVVID principles
Relevant Technologies
Select appropriate components; features and protocols at the Campus Infrastructure, Server Farm, and Edge Distribution modules of a campus network design
Select appropriate components; features and protocols at the Network Management module of a campus network design
Compare and contrast the link characteristics, net protocols application demand characteristics and cost consideration that affect WAN design
Select suitable protocols, components and an appropriate topology for the Enterprise WAN
Select suitable protocols, components and an appropriate addressing scheme for the Internet Connectivity and eCommerce modules
Select the appropriate components and network model to address identified network security threats
Select the appropriate queuing types and protocols to provide QoS within a network design
Select the appropriate components and network model to support VoIP traffic
Select the appropriate options and features, on designated Cisco equipment, that are necessary to support IP Multicast
Describe the functionality required of designated network components, protocols, and addressing schemes to support IP Multicasting
Select the appropriate components and network technologies to support VPN
Application Solutions
Describe the functions of Cisco Works Network Management Solutions in a given network management module design
Position the Cisco Call Manager components in a variety of IP telephony deployment models
Select an appropriate content networking solution for a specific LAN/WAN design
Select a universal IP storage networking solution, given specific enterprise-wide storage and networking requirements
642-871 ARCH (Designing Cisco Network Service Architectures Exam
) dumps download
1. Which action indicates the optimal level of functional process recovery in a high availability architecture?
A. Failure of a networking component is automatically detected.
B. The end-users are unaware that a failure has occurred.
C. The ailing component fails-over to an alternate component.
D. Automated alert mechanisms generate a dispatch for service.
E. Monitoring tools generate alert messages when a less than optimal condition occurs
Answer: B
2. Which IP NAT implementation allows IPSec peers to establish a connection through a NAT device?
A. PAT
B. NAT-T
C. Dynamic NAT
D. IPSec ESP NAT
Answer: B
3. Choose the technology required for a VPN when multicast, broadcast, and non IP packets need to be tunneled.
A. triple-DES
B. IPSec
C. GRE
D. IKE
E. ISAKMP
Answer: C
4. Which Layer 3 protocol is used to provide data integrity, privacy, and security on a IP based VPN?
A. GRE
B. MD5
C. PKI
D. IPSec
E. L2TP
Answer: D
5. Which VPN management feature would be considered to ensure that the network had the least disruption of service when making topology changes?
A. dynamic reconfiguration
B. path MTU discovery
C. auto setup
D. remote management
Answer: A
6. What happens when packets traversing the network exceed the MTU of an IPSec/VPN interface?
A. They trigger a link failure.
B. They are all discarded and re-transmitted.
C. They are unable to be sent.
D. They become fragmented
Answer: D
7. You are asked to design a VPN for a medium sized company. The company has 12 stationary offices and
one main office. Each office is more than 80 miles away from the next. What type of VPN would you design
for this situation?
A. remote access VPN
B. site to site VPN
C. enterprise remote access VPN
D. wireless VPN
Answer: B
8. Which Cisco Works VPN/Security Management Solution gives administrators access to devices showing
real-time status along with operational and configuration functions through a web browser?
A. VPN Monitor
B. CSPM
C. Resource Manager (RME)
D. Cisco View
E. IDS Host Sensor
Answer: D
9. Which two statements are true regarding a Cisco wireless LAN? (Choose two.)
A. Only IP can be transmitted over a wireless LAN.
B. All stations in a wireless cell share the bandwidth.
C. Wireless LANs use CSMA/CD access method.
D. Only one station can send at any one time.
E. Wireless LANs use a token sharing access method
Answer: BD
10. What helps maximize throughput in a wireless LAN? (Choose two.)
A. minimize broadcasts
B. enable IPSec
C. increase size of roaming domains
D. use static WEP
E. filter multicast traffic
Answer: AE
11. What is the frequency and maximum data rate of 802.11b?
A. 5 GHz frequency and 2.4 Mbps data
B. 5 GHz frequency and 54 Mbps data
C. 2.4 GHz frequency and 1.44 Mbps data
D. 2.4 GHz frequency and 11 Mbps data
E. 1.44 GHz frequency and 2.4 Mbps data
Answer: D
12. What is the frequency and maximum data rate of 802.11a?
A. 5 GHz frequency and 54 Mbps data
B. 5 GHz frequency and 10 Mbps data
C. 2.4 GHz frequency and 10 Mbps data
D. 2.4 GHz frequency and 64 Mbps data
E. 12 GHz frequency and 12 Mbps data
Answer: A
13. Which IEEE wireless standard provides backward compatibility with 802.11b?
A. 802.11a
B. 802.1q
C. 802.11g
D. 802.11p
Answer: C
14. What is the recommended maximum number of clients that an individual wireless access point should
support?
A. between 1 and 8
B. between 10 and 30
C. between 32 and 48
D. between 64 and 96
Answer: B
15. What can be done to ensure connections to workstations that are placed on the edge of a wireless
access point’s coverage area?
A. lower data rates
B. increase data rates
C. group access point frequency channels together for increased range
D. enable multicasting
Answer: A
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