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Cisco:

Designing for Cisco® Internetwork Solutions (DESGN®)


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Version 6.0

Jun. 17th, 2003

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Section A
Q.1 The advantages of using static routes are: (Choose all that apply)

A. Efficient use of router resources.
B. Increased security due to known routes.
C. A single path into and out of a network.
D. Route calculations made by network administrators.
Answer: A, B
Q.2 Before any changes are made to a customer network the current network must be documented. What
should be included in this documentation? (Choose all that apply)
A. Addressing schemes
B. Concerns about the network
C. Protocol analysis
D. Network topology
Answer: A, B, D
Q.3 Routing protocols are characterized by which of the following features? (Choose all that apply)
A. Operation at only the lowest layer of the OSI model.
B. Upper-layer protocols existing in a given protocol suite.
C. Operation at the Session layer of the OSI model.
D. Responsibility for path determination and traffic switching.
Answer: D


Q.4 Which of the following are components included in the Cisco SAFE architecture?
(Choose three)

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A. Multicast Router
B. Enterprise Edge
C. Dynamic VLANs

D. Enterprise Campus
E. SP Edge
Answer: B, D, E
Q.5 An SNMP-managed network consists of which principal components? (Choose all that apply)
A. Firewalls
B. Agents
C. Network-management systems
D. Managed devices
Answer: B, C, D
Q.6 What is the third step in building a prototype network?
A. Determine how much of the network structure must be built to prove that the design meets the customers
goals.
B. Gain an understanding of what your competition intends to propose.
C. Review extracted new customer requirements.
D. Develop a testplan.
E. Purchase and configure equipment.
F. Practice demonstrations
Answer: B
Q.7 A newly hired sales representative is trying to decide upon a WAN solution that will allow her to
communicate with the corporate office located over 500 miles from her
home. She most be able to access the company web server and send e-mail with
attachments throughout her entire 8-hour workday.
Which of the following would be the most cost effective for her to use?

A. ISDN
B. Satellite
C. Leased Line
D. DSL
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E. ARM
Answer: D
Q.8 A multi-layer LAN switches data outside of the source network based on information stored in which
location?
A. RIP tables
B. OSPF tables
C. Bridging tables
D. Route processors
Answer: D
Q.9 A small state college is planning to improve the security of their campus network, in particular the
dorm network. Which information provided by the college is most relevant to the new design?
A. User policy
B. Number of users
C. Applications permitted
D. Speed of the network
Answer: A
Q.10 Which two Cisco router services perform network traffic analysis to assist in documenting a
customer’s existing network? (Choose two)
A. NetFlow
B. CDP
C. MRTG
D. NetMon
E. SNMP MIB compiler
Answer: A, B
Q.11 Which statement about developing a network design implementation plan is true?
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A. The implementation of a design must be overseen by the designer to ensure success.
B. Implementation steps described in detail can be performed by a less-experienced engineer.
C. Fallback steps can be reduced if a detailed pilot completes successfully.
D. Many implementation steps can be performed simultaneously.
Answer: B
Q.12 You need to show proof of concept for a proposed new campus network that utilizes Layer 3
switching. The production network is business critical and no network disruptions are tolerated. Which
approach should be used for this test?
A. Pilot network
B. Prototype network
C. Live network
D. Verification design
Answer: B
Q.13 You are helping a customer design some enhancements to her network for scalability and availability.
You discover that all routers on her network are Cisco but many of her switches come from different
vendors and are owned by the departments where they are located. She has an outsourcing agreement for
the maintenance of the network equipment. This outsourced service vendor has implemented CiscoWorks
with SAA to manage the network. What are three Service Level Management challenges that you would
need to address in your design proposal? (Choose three)
A. Your customer does not own the switches on the network.
B. The switches and routers come from different vendors.
C. She cannot utilize NetFlow on the network.
D. She has no way to monitor SLA conformance.
E. She does not manage the network with her own staff.
Answer: A, B, E
Q.14 Which solution can be deployed at the receiving end of a converged network to help smooth voice
traffic that has been affected by variable delay?
A. Dejitter buffers
B. Higher compression

C. Reduces compression
D. Link fragmentation and interleaving
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Answer: A
Q.15 What is a function of a firewall?
A. Maintains separate routing information for each protocol supported on a router.
B. Provides a security buffer between connected public networks and a private network.
C. Provides user authentication between connected public networks and a private network.
D. Reduces routing loops by preventing the flow of routing information to the source where that
information was learned.
Answer: B
Q.16 Which three routing protocols have high speed convergence? (Choose three)
A. RIPv2
B. IS-IS
C. EIGRP
D. BGP
E. OSPF
F. IGRP

Answer: B, C, E
Q.17 When designing IPv6 into an existing IPv4 network, which two strategies allow the two address
schemes to coexist to facilitate a migration? (Choose two)
A. Translate one protocol into the other.
B. Encapsulate IPv6 packets into IPv4 packets.
C. Bridge between the IPv6 IPv4 networks.
D. Enable anycast capability in the routing protocol.
Answer: A, B

Q.18 Which two characteristics are affected by choice of codec when designing networks to carry IP
telephony? (Choose two)
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A. Voice quality
B. Silence packet handling
C. Voice packet header size
D. Bandwidth required for voice calls
Answer: A, D
Q.19 Encryption addresses which network security concern?
A. Data integrity
B. User authentication
C. Data authentication
D. Data confidentiality
Answer: D
Q.20 When designing a network that will incorporate fault management, you must incorporate components
that will achieve which three goals? (Choose three)
A. Incorporate intrusion detection
B. Detect network error conditions
C. Log network events
D. Notify network administrators
E. Discover network topology
Answer: B, C, D
Q.21 Which two inputs are required to determine the number of circuits needed from a PBX to a
converged network when planning trunk capacity? (Choose two)
A. Number of sites
B. Busy hour traffic
C. Average call duration

D. Number of users per site
E. Blocking probability (GoS)
Answer: B, E
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Q.22 An Executive Summary contains all except which items?
A. Benefits of the solution.
B. Strategic recommendations.
C. Purpose of the project
D. Implementation considerations.
E. Cost of the project.
Answer: E
Q.23 According to the Cisco SAFE Architecture, the Enterprise Campus consists of which modules?
(Choose three)
A. Server
B. WAN
C. Corporate Internet
D. Building Distribution
E. Core

Answer: A, D, E
Q.24 A company is expanding into a multinational organization and has hired a network consultant to
assist them with planning a new network design. At a monthly presentation the consultant is going to
recommend that the company use a routing protocol that will support a network design that cannot be
structured into a hierarchy. Which routing protocol should he recommend?
A. OSPF
B. EIGRP
C. IS-IS

D. GR
E. BGP
Answer: E
Q.25 While designing a network for a new client, the IS Manager informs you that the company is
considering a hub and spoke topology with links that will be low bandwidth and rarely changing routes.
Which of the following would you recommend?
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A. Static Routing
B. Dynamic Routing
C. IGRP
D. RIP-2
E. AARP
Answer: A
Q.26 What is the third step in building a pilot network?
A. Investigate the competition.
B. Test the design.
C. Practice the demonstration.
D. Schedule and present the demonstration.
E. Script a demonstration of the test results.
Answer: E


Q.27 To ensure that productivity remains high and the quantity of user complaints is low,
network response time should be a maximum of?

A. 150 milliseconds
B. 50 milliseconds

C. 25 milliseconds
D. 100 milliseconds
Answer: D
Q.28 ABC Company is an auto parts distribution company. They have a single location with headquarters
in one office building and three warehouses. Their customer base consists of 400 independent auto parts
retailers, which connect through direct links to their network to access an ordering system. The servers and
access routers connecting to the retail outlets are on a separate Ethernet VLAN in the headquarters
campus. The retail outlets are complaining about poor response time when they connect to the ordering
system. ABC wants you to help them plan some improvements to their network to increase the
performance of their customers connections to the ordering system. What are two additional details about
ABC’s existing network needed for this analysis? (Choose two)
A. Router ACLs providing security to the servers.
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B. Bandwidth of their connection to the Internet.
C. Type of the connections to the retail outlets.
D. Utilization on the servers VLAN.
E. Number of users on the headquarters LAN.
Answer: C, D
Q.29 AAA Video operates a chain of 50 video rental stores located in the Northwestern United States. They
currently have a Point-of-Sale (POS) system in which each store posts its daily sales data and inventory
changes to a central database through dial-up communication. There is no interaction between the stores
and the central system during business hours. The central site runs on an Ethernet LAN. The only always-
on WAN link is an Internet connection using wireless broadband to a local ISP. AAA wants to enhance
their service offering by creating a new E-Commerce web site where customers can browse and search a
catalog of video titles and select the ones they want for rental. The system will instantly communicate the
order to the nearest store where employees pull the order and hold it until the customer picks it up. The
service must operate on a 24x7 basis. AAA sees this new business strategy as a means to increase revenue

and expand the business nationally. They see an opportunity to expand the web site in the future to video,
DVD and music sales on a worldwide level. The company wants all stored to be connected to the central site
through WAN links. The company is upgrading the central inventory database so that sales and rentals can
be posted immediately in real-time. An Internet-based email and instant-messaging system will be set up
for all headquarters employees and store managers to use. AAA believes that networking the stores will
improve order fulfilment processes which will improve customer satisfaction and thus, boost revenue. It
will also help communication with store employees. AAA wants to upgrade the local LAN to a Gigabit and
Fast Ethernet system to facilitate the demands of the new and upgraded systems. They have budgeted
$500,000 for the networking equipment and another $10,000/month for the WAN charges including a
faster Internet connection. They believe that 256Kbps speeds will be adequate to the stores. Since they have
no staff capable of managing the new network, they will hire two engineers that already have the training
and experience. The project must be complete in 6 months when the new inventory system goes online. The
IT manager has concerns about the security of the servers and workstations on the network when all stores
become connected. He doesn’t want any Internet access to or from the stores. He is depending on you to
recommend an effective yet affordable solution that will protect his system from intruders. What are three
technical goals of AAA Video with regard to this network design project? (Choose three)
A. Sell merchandise through the E-Commerce site.
B. Real-time posting of sales.
C. Network security measures.
D. Hire two new network engineers.
E. Upgrade to a high-performance LAN.
F. Enhance service offerings.
Answer: B, C, E

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Q.30 Each set of an implementation plan should consist of which three items of information?

(Choose three)

A. A description of the step’s objective.
B. A detailed implementation guidelines.
C. A reference to a section in the design document.
D. Summary of requirements to be fulfilled by the step.
E. Listing of applicable device configurations.
Answer: A, B, C

Q.31 You have designed and implemented a SAFE network, but users still complain of isolated DoS attacks
directed at specific hosts in the e-commerce module. The operating systems on these servers have been
patches and all unneeded services have been turned off, but the problem persists. What more can you do to
reduce the effect of these attacks?
A. Block all TCP traffic to these servers at the Internet firewall.
B. Limit connection rate to these servers at the Internet firewall.
C. Block all UDP traffic to these servers at the Internet firewall.
D. Load-balance between multiple servers running the same applications.
Answer: B
Q.32 You are designing an IP addressing system for a large home which has IP enabled end-systems
(appliance, light switches, security systems, heating/coding systems and video cameras). This network is
connected to the Internet 24 hours a day via an ADSL connection and uses Network Address Translation
(NAT). The end-systems on this network are remotely accessed by the home owner to monitor the activities
in her home. What IP addressing system would be most suitable for these end-systems?
A. Public IPv4 addresses
B. Private IPv4 addresses
C. A combination of Private and Public IPv4 addresses
D. Micro-IP addresses
E. IPv6 addresses
Answer: B
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Q.33 Why would you recommend classless routing protocols for a network?
A. Minimize convergence time.
B. Increase security and availability.
C. Suit the flat structure of the network.
D. Accommodate mixed vendor environment.
E. Support variable length subnet masking.
Answer: E


Q.34 Virtual Private Networking (VPN) functionality can be provided at Layer 2 by which two
mechanisms? (Choose two)
A. Leased Line
B. IPSec
C. Sonet/SDH
D. Tunnelling/GRE
E. Frame Relay
F. ATM
Answer: E, F
Q.35 A very large organization has received its IPv6 address range from their Internet Service Provider
and intend to use only IPv6 addresses internally. They will access the Internet through port address
translation (PAT). What is a requirement for their Domain Name Servers, DNS?
A. They no longer need DNS servers.
B. Their DNS servers need to support both IPv4 and IPv6 addresses.
C. Their DNS servers need to support only IPv6 addresses.
D. Their DNS servers need to support only IPv4 addresses.
E. They need additional DNS servers in their network just for IPv6 addresses.
F. There are no changed required to their DNS servers.

Answer: B
Q.36 You’ve designed a converged network to carry voice calls on-net as close as possible to the destination
to avoid long distance charges. Which two are reasons that a VoIP call could go off-net earlier than
designed? (Choose two)
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A. Remote voice gateway sending busy-back signal.
B. Destination routing not configured on local and remote gateways.
C. Call manager server is too busy to process the call.
D. The telephone user dials an access code.
Answer: A, D


Q.37 Which three describe the primary functions of the Access Layer of the campus network design
hierarchy? (Choose three)
A. Provides end-user connectivity.
B. Provides route summarization.
C. Provides remote office connectivity.
D. Provides policy-based routing.
E. Connects shared LAN devices.
Answer: A, C, E
Q.38 Which Cisco IOS feature allows the translation of private addresses into registered IP addresses?
A. Cisco Address Translation
B. Network Address Translation
C. Local Address Registration
D. Global Address Registration
Answer: B


Q.39Which items are important when documenting the business requirements of a company? (Choose two)

A. Fixture company growth
B. IP address assignments
C. Current network topology
D. Router software upgrades
E. Customer support improvements
F. Fixture software applications
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Answer: A, E
Q.40 Network Performance is defined by which of the following items? (Choose all that apply)
A. Capacity
B. Response time
C. Packet size
D. Utilization
E. Efficiency
Answer: A, B, D, E
Q.41WAN technologies operate at which three layers of the Open Systems Interconnect (OSI) model?
(Choose three)

A. Presentation
B. Data Link
C. Transport
D. Physical
E. Session
F. Network
Answer: B, D, F

Q.42 What is the first task that a network designer should perform when documenting the customer
requirements and existing environment of a network design project?
A. Assess the scope of the design project.
B. Identify applications, both planned and installed.
C. Identify the customer’s business constraints.
D. Assess the customer’s business goals.
Answer: D
Q.43 The state hospital has six clinics spread through the state connected to the main hospital facility
through dedicated links. Doctors practicing in the state have online access to patient diagnostics, scheduling
and billing data in various hospital databases. The hospital has signed new agreements with three
insurance providers and they are planning to open a new clinic on the opposite side of the state. The new
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clinic will have a trauma center which will require constant communication with the local emergency
dispatch center.
What additional information should you obtain about applications in use on the network?
A. The authentication used by the application.
B. The routing protocols supported by the application.
C. The application data-link layer overhead.
D. The applications level of criticality.
Answer: D
Q.44 Which step should you consider when an inexperienced network engineer is implementing the design?
A. Make the design implementation description as detailed as possible.
B. Have the designer carry out the complex implementation steps.
C. Prevent detailed steps that require the involvement of other staff members.
D. Create less detailed implementation steps that exclude the direct involvement of the designer.
Answer: A
Q.45 Which three modules comprise the Enterprise Composite Network Model? (Choose three)

A. Enterprise Campus
B. Enterprise Edge
C. Enterprise Server Edge
D. Enterprise Core Backbone
E. Service Provider Edge
Answer: A, B, E
Q.46 A medium sized accounting firm has four offices around the country: head office in Phoenix, and
branches in Boston, Chicago and Los Angeles. They want connectivity between their branches with full
redundancy and high availability. What topology would you recommend for this firm?
A. Point to point
B. Partial mesh
C. Start hub and spoke
D. Full mesh
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Answer: D
Q.47 In which network is the IP address 144.10.63.0 a valid node address that can be used on a workstation
or other network device?
A. 144.10.62.0 /23
B. 144.10.62.0 /24
C. 144.10.63.0 /24
D. 144.10.63.0 /25
Answer: A
Q.48 You are in the process of designing some changes to a customers network. The design calls for
replacing hubs in several wiring closets with switches. You are planning for 30% more ports than exist now
on the hubs. The customer wants Fast Ethernet speeds to the workstations. Each closet will be separated
into a different IP subnet. All of the users that will connect to these switches use standard file and print
applications plus Internet browsing. When designing the access layer of the network, which three questions

should be asked to gain necessary additional information regarding the access layer? (Choose three)
A. How will VLANs be deployed?
B. What uplink cabling exists?
C. What level of redundancy is needed?
D. Will QoS be needed?
E. Will Gigabit uplinks be used?
Answer: B, C, E
Q.49 SNMPv3 added which enhancement to the protocol that did not exist in version 1 or 2?
A. Http transport
B. Vendor-specific MIBs
C. Increased performance
D. Secure transmission
Answer: D
Q.50 Identify the fields that are associated with an IPv6 packet? (Choose four)
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A. Header Length
B. Payload Length
C. Header Checksum
D. Traffic Class
E. Source Address
F. Version
Answer: B, D, E, F
Q.51 Steps for designing Network layer addressing and naming include all but the following:
A. Proposing a method for mapping geographical locations to router clusters.
B. Developing a plan for configuring user station addresses.
C. Designing a hierarchy for addressing.
D. Designing route summarization.

E. Designing a scheme for naming servers, routers, and user stations.
Answer: A

Q.52The routers on a network are being documented for a technical report.
Choose the items that should be included in his report. (Choose three)

A. Interface error statistics
B. Router software revision
C. Router power requirements
D. Interface loads
E. Interface configurations
Answer: A, B, E


Q.53 Cisco Systems uses a three-layer hierarchical model to describe network design topologies. Which
three layers are included in this model? (Choose three)
A. Designated
B. Distribution
C. Core
D. Access
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Answer: B, C, D
Q.54 Exhibit:

The exhibit shows a customers network as diagramed by the network manager. Based on the information
in the diagram, which two Layer 2 or Layer 3 protocols must be supported in the new network design?
(Choose two)

A. Appletalk
B. SNA
C. Token Ring
D. IPX
E. NFS
Answer: B, C
Q.55 A prototype network is used to test a proposed network redesign solution. Although the test seemed to
be successful, network performance is unacceptable when implemented in the live network. What was
wrong with the prototype network test?
A. The prototype should have been built on the live network.
B. The prototype failed to test for the proper characteristics.
C. The prototype network didn’t match the live network exactly.
D. Different configuration parameters existed in the prototype network.
Answer: B
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Q.56 Which three terms describe the primary functions of the distribution layer of the campus network
design hierarchy? (Choose three)
A. End-user connectivity.
B. Connects access devices to the core backbone.
C. Provides WAN connections.
D. Enforces security policies.
E. Provides QoS services.
F. High speed transport
Answer: B, D, E
Q.57 Which two methods provide data integrity? (Choose two)
A. Token cards
B. Digital signatures

C. Two-factor authentication
D. Secure fingerprints
Answer: B, D
Q.58 Exhibit: The diagram shows a standard, Layer 2
campus network design. Which numbered box represents
the Core Layer?

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A. #1
B. #2
C. #3
D. #4
E. #5
Answer: D Explanation: The core should be where the servers are located.
Q.59 Exhibit: A timber wholesaler in China has four servers
accessible via the Internet and approximately 100 users. They
primarily deal with 20 customers locate din eight different
countries. They want to improve availability of their servers
to their customers (see diagram). Which three components
would you duplicate to achieve this? (Choose three)

A. Layer 3 switch
B. Layer 2 switch
C. User connections
D. ATM connection
E. Customers connection to the network
Answer: A, B, D


Q.60While examining the existing system of a new customer, you discover that their network management
facilities provide a means to detect and correct network device failures, monitor device and bandwidth
utilization, and they use SSH to manage devices.
Which two functional areas of network management has this customer failed to fulfil?
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(Choose two)

A. Fault management
B. Configuration management
C. Accounting management
D. Performance management
E. Security management
Answer: B, C


Q.61 Network security design involved these steps: (Choose all that apply)
A. Analysis of security risks.
B. Training of users, managers, and technical staff.
C. Identification of network assets.
D. Identification of routing protocol metrics.
E. Analysis of security requirements and tradeoffs.
Answer: A, B, C, E
Q.62 What protocol is responsible for resolving an IP address to a MAC address?
A. ARP
B. TCP/IP
C. IGRP

D. IPX
E. DDP
Answer: A
Q.63 When choosing a route, which metric can be used by the IGRP protocol? (Choose all that apply)
A. Bandwidth
B. Hops
C. Reliability
D. Fault Tolerance
E. Link Cost
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Answer: A, C
Q.64 The Smith and Jones Company (S&J) is a law firm in New York City. They recently signed a merger
agreement with another firm on the other side of the city. The employees of the other firm will be moving
into S&J’¨s building. They will occupy two floors in the building. They will bring with them email, file
servers and an advanced web-based legal database system primarily accessed at the office.
The partners of S&J would like to upgrade their network before the new employees move into the building.
The current network installed at S&J has become very slow. The employees say that they can access the
company website quicker from their homes over the Internet than on their local office network. They want
you to make their LAN “as fast as their WAN”. You must also design enough capacity to accommodate the
new firm whose users are more technically advanced. S&J would like to adopt VoIP throughout the
combined company. Lastly, S&J wants to make sure that network security measures are in place for the
new firm’s web site and e-mail servers. They have been very frustrated by Internet-based viruses. They
want to make sure that no hackers can access their servers from the Internet. Which three data-link layer
features will need to be a part of the scope of this design project? (Choose three)
A. VLANs
B. 10/100 auto sensing
C. Redundant WAN links

D. Intrusion detection
E. Gigabit Ethernet
Answer: A, B, E
Q.65 The successful implementation of which two testing techniques can be used for proof of concept of a
network design? (Choose two)
A. Pilot network
B. Simulation lab
C. Prototype network
D. Verification network
E. Modular network
Answer: A, C
Q.66 What is the shortest notation of IPv6 address 2080:0000:0000:0000:0008:0000:0000:200C?
A. 2080::8::200C
B. 2080::0:8:0:0:200C
C. 2080:0000:0000:0000:0008:0000:0000:200C
D. 2080::8:0:0:200C
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E. 2080:0:0:0:8::200C
F. 2080:0:0:0:8:0:0:200C

Answer: D
Q.67 What does a tie trunk (tie line) interconnect?
A. PBX switch with another PBX switch.
B. PBX and CO switch (exchange).
C. PBX and remote telephone.
D. CO switch (exchange) and a remote telephone.
E. CO switch (exchange) with another CO switch.

Answer: A
Q.68 Your IP addressing requirements exceed the public class C address range assigned to your company,
so you’ve implemented private addressing. Which mechanism would allow all your users simultaneous
access to the Internet?
A. Translate using static NAT.
B. Translate using dynamic NAT.
C. Implement VLANs.
D. Secondary IP network.
Answer: B
Q.69 Upon visiting a customer site it is determined that a three-part firewall system should be implemented
as a security measure. Which of the following components would be included? (Choose all that apply)
A. A router acting as an inside packet filter.
B. An independent WAN.
C. An isolation LAN.
D. A router acting as an outside packet filter.
Answer: A, C, D
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Q.70 What topology is represented in Diagram 1?
A. High-level topology map of the customers current network.
B. High-level topology map of the customers proposed e-mail packet flow.
C. High-level topology map that meets the customers requirements.
D. High-level topology map of the customers proposed intranet security system.
Answer: A
Q.71 Which three steps are used to characterize an existing network? (Choose three)
A. Customer input
B. Visual inventory
C. Network audit

D. Traffic analysis
E. Server statistics
F. Ping analysis
Answer: A, C, D
Q.72 What information will you need to include in your implementation to allow the engineer to gather
further details?
A. Corporate policies regarding protocols, standards, vendors, and applications.
B. Reference to design documents.
C. Availability of trained personnel within the organization.
D. Budgetary resource limitations.
Answer: B
Q.73 Which three terms describe the primary functions of the core layer of the campus network design
hierarchy? (Choose three)
A. High-speed transport
B. Fault tolerance
C. Packet filtering
D. Security
E. Manageability