642-871 (ARCH®) TestKing's Designing Cisco Network Service Architectures Exam Version 4.1 642 - 871 Important Note, Please Read Carefully Study Tips This product will provide you questions and answers along with detailed explanations carefully compiled and written by our experts Try to understand the concepts behind the questions instead of cramming the questions Go through the entire document at least twice so that you make sure that you are not missing anything Latest Version We are constantly reviewing our products New material is added and old material is revised Free updates are available for 90 days after the purchase You should check your member zone at TestKing an update 3-4 days before the scheduled exam date Here is the procedure to get the latest version: Go to www.testking.com Click on Member zone/Log in The latest versions of all purchased products are downloadable from here Just click the links For most updates, it is enough just to print the new questions at the end of the new version, not the whole document Feedback Feedback on specific questions should be send to feedback@testking.com 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 feedback@testking.com 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 Leading the way in IT testing and certification tools, www.testking.com -2- 642 - 871 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 Section A QUESTION NO: Which requirement for an Enterprise Campus network is associated with the increasing amount of users, data, and applications that the network must expand to support? A B C D Functionality Performance Scalability Manageability Answer: C QUESTION NO: Which step would you last in the Enterprise Campus Design Methodology? A B C D E Design the physical network Select the routing protocols Determine the data and application requirements Design the edge distribution module Select an IP addressing strategy and numbering scheme Answer: A QUESTION NO: Note: The following 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 Leading the way in IT testing and certification tools, www.testking.com -3- 642 - 871 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, and reliable campus network to meet the strategic goals of TESTKING Finances are limited, so the design needs to meet requirements but with minimum cost QUESTION NO: Which recommendations would you make based on the provided parameters? (Choose two) A B C D E F Use existing copper wiring to the desktop Use existing copper wiring between buildings Use single mode fiber to the desktop Use multi-mode fiver to the desktop Use single mode fiber between buildings Use multi-mode fiver between buildings Answer: A, F QUESTION NO: Where would you locate the device for the Management Module and Server Farm? A B C D In the Administration building In the Engineering building In the Information-processing building In all buildings Leading the way in IT testing and certification tools, www.testking.com -4- 642 - 871 Answer: C QUESTION NO: Which three modules of the Enterprise Network model will you include in your design? (Choose three) A B C D E F The Campus Core module The Edge Distribution module The Management Module The Corporate Internet module The Server Farm module The building Distribution module Answer: A, B, E QUESTION NO: Which high availability design relies more on networks than devices? A B C D E Clustering Fault tolerance Redundant topology Parallel processing Tripe modular redundancy Answer: C QUESTION NO: What is the definition of a fault tolerant device? A B C D E A backup path exists for every link between the client and the server Key components can be replaced within the device without turning off power A backup device exists for every device between the client and the server Devices can be replaced in the network without interrupting the network operation The device provides redundant backup within the device for each of its key components Answer: A Leading the way in IT testing and certification tools, www.testking.com -5- 642 - 871 QUESTION NO: Which two characteristics drive the choice of a Layer technology for WAN, remote, or Internet access at the Enterprise Edge? (Choose two) A B C D E Services offered by the provider Layer technology Layer media Transportability Loss Answer: C, E QUESTION NO: 10 Which three application characteristics are important to the Enterprise Edge design process? (Choose three) A B C D E Data content Bandwidth usage Database size Delay sensitivity Loss tolerance Answer: B, D, E QUESTION NO: 11 What is the first step in the Enterprise Edge design methodology? A B C D Select a service provider Select a Layer technology Select a Layer technology Characterize applications Answer: D QUESTION NO: 12 Leading the way in IT testing and certification tools, www.testking.com -6- 642 - 871 Which four components are part of the Enterprise Edge functional area in the Enterprise Composite Network Model? (Choose four) A B C D E F Internet connectivity Management module VPN/Remote access WAN module Server farm E-Commerce module Answer: A, C, D, F QUESTION NO: 13 Which three components would you expect to find in the VPN/Remote Access module? (Choose three) A B C D E PSTN Access server ISDN IDS Firewall Answer: B, D, E QUESTION NO: 14 When using Cisco equipment, what model is used if you are connecting PBX systems that use nonstandard signaling? A B C D Translate model Transport model Cross over model 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 Leading the way in IT testing and certification tools, www.testking.com -7- 642 - 871 Which three technologies would you implement at the Server Farm Distribution layer? (Choose three) A B C D E Mid-range switches Server load balancing Redundant firewalls Redundant switching and links with no single paths or points of failure Caching systems where appropriate Answer: B, D, E QUESTION NO: 16 Exhibit: What is the VPN topology shown in the graphic? A B C D Full-mesh VPN Hub-and-spoke VPN Hierarchical VPN Private WAN 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 Leading the way in IT testing and certification tools, www.testking.com -8- 642 - 871 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 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 B C D Install Category 5e copper to the desktop from the wiring closets Install multi-mode fiber to the desktop from the wiring closets Replace the multi-mode fiber within the buildings with single-mode fiberMaintain the current wiring structure Answer: D QUESTION NO: 18 What are two considerations in planning for high availability? (Choose two) A B C D Company size Hardware costs Cost of downtime Performance requirements Answer: A, B QUESTION NO: 19 What is the recommended maximum number of clients that an individual wireless access point should support? A B C D Between and Between 10 and 30 Between 32 and 48 Between 64 and 96 Answer: B QUESTION NO: 20 Leading the way in IT testing and certification tools, www.testking.com -9- 642 - 871 What are two considerations to using IP Multicast delivery? (Choose two) A B C D E No congestion avoidance Not for bandwidth intensive applications No guaranteed delivery mechanism Source sends multiple data streams out each interface 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 B C D Use campus wide VLANs Use building distribution level VLANs Use per-switch VLANs at the access layer Use VLANs in the campus backbone Answer: B, C QUESTION NO: 22 What are two business concerns increasing the need for remote access? (Choose two) A B C D The increased cost of office space The ability to provide a more flexible work environment The need for authentication The need for a method to charge back department cost Answer: A, D QUESTION NO: 23 What are two advantages of designing a high availability network based on a redundant network topology? (Choose two) A The cost of the network is reduced B Network availability can be guaranteed C Redundant topologies are easier to manage and troubleshoot Leading the way in IT testing and certification tools, www.testking.com - 10 - ... NO: 23 What are two advantages of designing a high availability network based on a redundant network topology? (Choose two) A The cost of the network is reduced B Network availability can be guaranteed... possible advantages of designing a high availability network based on a redundant network topology? (Choose two) A B C D E The cost of the network is reduced Quality of service can be guaranteed... is usually used in networks that have which of the following characteristics? (Choose two) A B C D Stub networks Multi-homed networks Dial-on-demand networks Smaller expanding networks Answer: