642-871 (ARCH®)

TestKing's Designing Cisco Network Service Architectures Exam Version 4.1

Feedback on specific questions should be send to You should state: Exam number and
version, question number, and login ID.

Our experts will answer your mail promptly.

Explanations
Currently this product does not include explanations. If you are interested in providing TestKing with
explanations contact Include the following information: exam, your background
regarding this exam in particular, and what you consider a reasonable compensation for the work.

Copyright
Each pdf file contains a unique serial number associated with your particular name and contact information for
security purposes. So if we find out that a particular pdf file is being distributed by you, TestKing reserves the
right to take legal action against you according to the International Copyright Laws.

642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 3 -
Note:
Section A contains 75 questions.
Section B contains 267 questions.
The total number of questions is 342.
Each section starts with QUESTION NO :1. There are no missing questions.

QUESTION NO: 3
Note: The following 3 questions relate to the scenario below:

TESTKING is manufacturer and importer of fasteners, including nuts and bolts. The main campus is
composed of three buildings that are less than 200 meters apart. All campus wiring is Category 5e
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 4 -
copper. Network access and distribution devices are currently 100 Mbps hubs, and the core is a 100
Mbps Layer-2 switch.
Development of the network has taken place over the past eight years in a series of steps that involved
minimal planning, with the exception of the WAN links, which have been recently redesigned. The
current network is characterized by slow response and frequent outages.

The engineering department uses a database server located in the engineering building. This server
processes heavy local traffic that keeps the local network at 70% of bandwidth. Accounting uses
commercial package for general ledger, accounts payable, and accounts receivable; these packages are
located on a server in the administration building. This server processes heavy local traffic and light
traffic from other buildings. All other servers are located in the information-processing center.

All employee use e-mail located on one server in the information-processing center. There is a web server
that is available for public use and an internal web server that is available to employees for company
news items and for human resource applications, such as an internal jobs-available database. The
external web server is in a new Corporate Internet module.

The internal network traffic is expected to grow at 10% per year for the next five years. The IT manager
of TESTKING has asked you to design an up-to-date, high-performance, scalable, secure, manageable,


- 5 -
Answer: C
QUESTION NO: 6
Which three modules of the Enterprise Network model will you include in your design? (Choose three)

A. The Campus Core module
B. The Edge Distribution module
C. The Management Module
D. The Corporate Internet module
E. The Server Farm module
F. The building Distribution module Answer: A, B, E
QUESTION NO: 7
Which high availability design relies more on networks than devices?

A. Clustering
B. Fault tolerance
C. Redundant topology
D. Parallel processing
E. Tripe modular redundancy


C. Layer 1 media
D. Transportability
E. Loss Answer: C, E
QUESTION NO: 10
Which three application characteristics are important to the Enterprise Edge design process? (Choose
three)

A. Data content
B. Bandwidth usage
C. Database size
D. Delay sensitivity
E. Loss tolerance Answer: B, D, E
QUESTION NO: 11
What is the first step in the Enterprise Edge design methodology?

A. Select a service provider.
B. Select a Layer 1 technology.
C. Select a Layer 2 technology.


A. PSTN
B. Access server
C. ISDN
D. IDS
E. Firewall Answer: B, D, E
QUESTION NO: 14
When using Cisco equipment, what model is used if you are connecting PBX systems that use non-
standard signaling?

A. Translate model
B. Transport model
C. Cross over model
D. Trans-cross model Answer: A
QUESTION NO: 15
TestKing wants you to design and implement a new Server Farm module with high availability and
performance.
642 - 871

Answer: B
QUESTION NO: 17
TestKing is a small company that has a campus consisting of three buildings that are 150 feet apart. The
buildings are connected with single-mode fiber using fast Ethernet. Access to the network is provided by
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 9 -
10 Mbps hubs with 100 Mbps Ethernet uplinks over multi-mode mode fiber to a switch within each
building. There are over 200 users connected to the hubs by Category 5 wiring.

Management has asked for a new network design that considers scalability, performance, availability,
manageability, and security. Because TestKing is a small company, cost is a major factor.

What wiring infrastructure recommendations would you include in your network design?

A. Install Category 5e copper to the desktop from the wiring closets.
B. Install multi-mode fiber to the desktop from the wiring closets.
C. Replace the multi-mode fiber within the buildings with single-mode fiber-
D. Maintain the current wiring structure. Answer: D
- 10 -
What are two considerations to using IP Multicast delivery? (Choose two)

A. No congestion avoidance.
B. Not for bandwidth intensive applications.
C. No guaranteed delivery mechanism.
D. Source sends multiple data streams out each interface.
E. Ordered delivery of packets. Answer: C, E
QUESTION NO: 21
To keep complexity of VLAN design to a minimum, you would choose which of the following?

A. Use campus wide VLANs.
B. Use building distribution level VLANs.
C. Use per-switch VLANs at the access layer.
D. Use VLANs in the campus backbone. Answer: B, C
QUESTION NO: 22
QUESTION NO: 24
Which protocol can be used to provide WLAN redundancy and low downtime?

A. EAP
B. SNMP
C. WEP
D. HSRP Answer: D
QUESTION NO: 25
What are two possible advantages of designing a high availability network based on a redundant network
topology? (Choose two)

A. The cost of the network is reduced.
B. Quality of service can be guaranteed.
C. Redundant topologies are easier to configure.
D. The secondary path can automatically take over for the primary path.
E. Individual network device fault tolerance is less critical. Answer: D, E
QUESTION NO: 28
Mid-town College wants you to design and implement a new Campus Backbone module that has
multicast and broadcast control, flexible topology, and no spanning tree loops. Cost effectiveness is a
secondary consideration.
Which equipment type would you recommend?

A. High-end routers
B. Mid-level Layer 2 switches
C. High-level Layer 2 switches
D. Layer 3 switches Answer: C
QUESTION NO: 29
What are the two basic approaches for high-availability design? (Choose two)

A. Redundant Topologies
B. Fault Tolerant Devices
C. Public bandwidth sharing
D. Extremely high MTTR
E. Extremely low MTBF Answer: A, B



Answer: A
QUESTION NO: 32
What is a primary tool to provide perimeter security to a network?

A. VPN
B. L2TP
C. Kerberos
D. Content filter Answer: A
QUESTION NO: 33
The list on the left contains characteristic and applications that are consistant with either the SAN or
NAS storage network model.
Drag each option to the appropriate box.
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 14 -

C. Auto setup
D. Remote management Answer: D
QUESTION NO: 36
In which four environments would OSPF be a viable choice for a routing protocol? (Choose four)

A. Authentication is required.
B. Load balancing between multiple routes is required.
C. Fast convergence is necessary.
D. External routes are not a concern.
E. NBMA connections exist.
F. The network is non-hierarchical. Answer: A, B, C, E
QUESTION NO: 37
Redundancy requirements of the WAN from the branch office to a regional office depend on which two
characteristics? (Choose two)

A. Routing requirements
B. Critical importance of the site and the number of users.
C. Impact if the site is an aggregation point.

B. Route plan
C. Dial pattern
D. Call handler
E. Route pattern Answer: E
QUESTION NO: 40
Which three objectives meet the requirements for the Server Farm module? (Choose three)

A. Provide remote dial-up access.
B. Provide up to 10 Gbps of outbound capacity.
C. Provide scalability with switches and server load balancing.
D. Provide availability with overall network design.
E. Provide high switch port density. Answer: A, C, D
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 17 -
QUESTION NO: 41


A. CQ
B. PQ
C. LLQ
D. WFQ
E. IO RTP Priority Answer: E
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 18 -
QUESTION NO: 44
Which three are IOS queuing techniques? (Choose three)

A. CQ
B. PQ
C. LLQ
D. CAR
E. NBAR Answer: A, B, C
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 19 -
QUESTION NO: 47
Which networking technology can provide guaranteed availability of network resources for mission-
critical, interactive, and time-sensitive Internet business applications?

A. QoS
B. Resiliency
C. Redundancy
D. Fault tolerance
E. Load balancing Answer: A
QUESTION NO: 48
What would be a result of failing to check the LAN/WAN utilization before implementing a VoIP design?

A. An echo due to excessive delays.
B. An improper codec selection.
C. The data link being oversubscribed.
D. A decrease in the probability of call blocking


A. Determine types of protocols to be supported.
B. Determine the environment in which the router will be used.
C. Select the number of WAN ports required.
D. Select the number of LAN ports required. Answer: C
QUESTION NO: 51
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: A
QUESTION NO: 52
In which Frame Relay PVC configuration, carrying both voice and data, is the potential voice load better
understood and partially isolated from the data load?


What causes Egress Blocking?

A. Large data packets blocking voice packets.
B. Large voice packets blocking data packets.
C. Re-transmission of packets blocking all traffic.
D. Excessive data fragmentation. Answer: A
QUESTION NO: 55
Which three characteristics normally define a Campus Backbone submodule? (Choose three)

A. Provides high speed, low overhead of low latency switching.
B. Implements policy-based filtering.
C. Transports aggregate traffic from the other submodules and functional areas.
D. Partial mesh generally used to avoid redundant links.
E. Generally, no policy enforcement. Answer: A, C, E
QUESTION NO: 56
When using a centralized call-processing model, what should be implemented at the remote locations for
failover purposes?


You are designing a network that requires private internal addressing for users within the TestKing
organization and also requires a website for external users. TestKing has been issued a portion of a Class
C address from their ISP. There are 320 users that will need access to the Internet.
Which two types of Network Address Translation would you propose? (Choose two)

A. Persistent
B. Dynamic
C. Static
D. Overlapping Answer: B, C
QUESTION NO: 59
You have just completed determining the application and data requirements for a new network design.
Which design step would you do next?

A. Select the IP addressing strategy and numbering.
B. Select the routing protocols.
C. Design the physical network.
D. Design the logical network. Answer: D
642 - 871
Leading the way in IT testing and certification tools, www.testking.comQUESTION NO: 62
To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link,
what should be used in the CPE?

A. Prioritization
B. Classification
C. Fragmentation
D. Traffic shaping
E. Traffic policing Answer: E
642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 24 -
QUESTION NO: 63
What four functions does Web Cache Communication Protocol (WCCP) incorporate? (Choose four)

A. Load balancing
B. Scalability
C. Remote management
D. Fault tolerance
E. Network address translation


Answer: A
QUESTION NO: 66
Which Cisco network management tools is targeted toward small to medium-size business?

642 - 871
Leading the way in IT testing and certification tools, www.testking.com - 25 -
A. Netsys
B. CiscoAssure
C. CiscoWorks Lite
D. CiscoWorks Blue
E. CiscoWorks for Windows Answer: E
QUESTION NO: 67
What device acts as a bridge between the IP network and a Fiber Channel SAN?

A. FC-HBA attached host
B. FC Switch
C. Storage Router