Tài liệu Fast Way to get your Certification - Title:Design docx

Correctexams.com Exam :640-025 Title:Design Version Number:Version 1-2003 Last Verified and Updated on Jan 4, 2003 Fast Way to get your Certification Real Level Practice Questions Guides www.correctexams.com Important Note: Please Read Carefully This Study Guide has been carefully written and compiled by correctexams experts It is designed to help you learn the concepts behind the questions rather than be a strict memorization tool Repeated readings will increase your comprehension We continually add to and update our Study Guides with new questions, so check that you have the latest version of this Guide right before you take your exam For security purposes, each PDF file is encrypted with a unique serial number associated with your correct Exams account information In accordance with International Copyright Law, correctexams reserves the right to take legal action against you should we find copies of this PDF file has been distributed to other parties Please tell us what you think of this Study Guide We appreciate both positive and critical comments as your feedback helps us improve future versions We thank you for buying our Study Guides and look forward to supplying you with all your Certification training needs Good studying! correctexams Technical and Support Team www.correctexams.com Fast Way to get your Certification Question No In a Novell environment, it is often a good idea to implement policies controlling resources access by configuring SAP filters A B C D On all routers On access-layer routers On distribution-layer routers On core-layer routers Answer: C Question No What does NetBIOS send to identify itself? A B C D Unicast Multicast Broadcast SAP advertisement Answer: C Question No Which of the following could be considered a "subarea" in the SNA hierarchy? A B C D Only Type nodes Only Type nodes An FEP with no peripheral devices hanging off it Peripheral nodes like FEP's Answer: C Question No A master domain trusts A B No one All other master domains www.correctexams.com -3- Fast Way to get your Certification C D Only directly-connected master domains All devices in the domain Answer: A Question No What happens after an SNA SSCP-LU and SSCP-PU connection is made? A B C D An LU-LU session occurs An LU-PU session occurs A PU-PU session occurs Nothing, because this should never occur Answer: A Question No Which of the following is not an RSRB encapsulation protocol? A B C D E F PPP TCP Frame Relay IP FST Direct Local SRB Answer: A Question No Which is the remote LAN access connectivity method use for a specific purpose (ie, email)? A B C D Remote gateway Remote control Remote virtual LAN Remote node Answer: A www.correctexams.com -4- Fast Way to get your Certification Explanation: Incorrect answers: B: C: D: Question No Of the following routing functions, which has a unique purpose from the others? A B C D Holddown Hot standby Count-to-infinity Poison reverse Answer: B Question No In a Frame Relay network, what issue occurs due to routing protocols using split horizon? A B C D A full mesh topology is required, which requires a lot of configuration Routers report Frame Relay errors due to routing updates not being forwarded Connectivity between networks is limited in a partial-mesh No routing traffic is sent to peer routers Answer: C Question No 10 What is the fundamental aspect in a firewall design? A B C D Host security Data compression Company policy Access to services Answer: C www.correctexams.com -5- Fast Way to get your Certification Question No 11 If you turn off the IGRP holddown timer, you can A B C D Reduce the time to detect carrier loss Introduce problems because of bad routes Reduce the likelihood of routing loops Reduce convergence time Answer: B Question No 12 When selecting an IP addressing scheme for a client with thousands of nodes A B C D Use a scheme that will permit classless routing Use a scheme that will permit mirroring Use class C addresses Use a scheme that will permit variable-length subnet masks Answer: A Question No 13 Which of the following AppleTalk designs is most scalable? A B C D AppleTalk Phase AppleTalk Phase implemented everywhere; enhanced IGRP used on WANs and RTMP used on LANs Use AURP because with AURP only routing table updates are sent Use RTMP but reduce the time between updates Answer: B Question No 14 A hierarchical mesh design for nonbroadcast multiaccess X.25 and Frame Relay www.correctexams.com -6- Fast Way to get your Certification A B C D Does not use full-mesh design techniques Permits full connectivity but minimizes virtual circuits Lets traffic cross an X.25 network only once Must be used to solve split horizon issues Answer: B Question No 15 Out-of-band call setup is accomplished in StrataCom environments by A B C D The Intelligent Network Server (INS) Soft PVCs FastPacket call setup protocol Signaling System (SS7) Answer: A Question No 16 NetBIOS end stations use names to communicate with servers Device names on the network are learned through extensive use of A B C D ARP request Static mapping Data-link layer broadcasts DHCP servers Answer: C Question No 17 At what layer does ZIP work? A B C D E Application Network Transport Session Data Link www.correctexams.com -7- Fast Way to get your Certification Answer: D Question No 18 If you have SNA clients, the mainframe, and the FEP all in the same location and only one path to the FEP, which of the following could you use? A B C D APPN Proxy Explorer RSRB DLSW Answer: B Question No 19 NetBIOS end stations use names to communicate with servers Device names on the network are learned through extensive use of A B C D ARP request Static mapping Data-link layer broadcasts DHCP servers Answer: C Question No 20 In a SNA network with RSRB, TCP encapsulation is used for LOCAL ACK to A B C D Determine subnet scopes Determine distance to gateway Integrate UNIX support Ensure guaranteed delivery Answer: D www.correctexams.com -8- Fast Way to get your Certification Question No 21 A multiport router with one LAN and several WAN connections would be used for A B C D A small home/office with a few users Very secure connections Remote gateway applications only Power users in hotel rooms Answer: C Question No 22 When gathering data for a new internetwork design, you should: A B C D Develop an understanding of business information flow Develop the internetwork structure and topology Pay no regard to corporate politics Configure internetworking devices Answer: A Question No 23 What are the two Internetwork design goals that most often are a tradeoff? A B C D Designing a scalable network and maximizing network availability Meeting the customer’s business requirements and maximizing network availability Keeping the costs down and maximizing network availability Using state-of-art solutions and maximizing network availability Answer: C D Question No 24 Major network numbers are subnetted, at a fixed length, to provide: A Greater administrative control of traffic www.correctexams.com -9- Fast Way to get your Certification B C D A greater number of hosts per segment Better utilization of addressing space An easy conversion between binary and decimal numbers Answer: A Question No 25 Which of the following items is not a consideration when selecting a routing protocol for an internetwork? A B C D The complexity of converting from the current routing protocol The ability to support variable length subnet masking The ability to support a wide variety of user applications The time for the network o converge after a topology change Answer: C Question No 26 When estimating bandwidth used by a routing protocol, which of the following questions is least relevant? A B C D What path metrics are supported? How often are routing updates transmitted? What data is transmitted in routing updates? Is snapshot routing supported? Answer: A Question No 27 Variable-length subnetting: A B C D Permits a subnet mask that does not have the standard 32-bit length Is best designed by further subnetting one regular subnet Is not usually used in serial links Is recommended so that you can have numerous subnet masks for a given network www.correctexams.com - 10 - Fast Way to get your Certification Question No 183 According to RFC 1490 for Frame Relay Answer: Both bridged and routed traffic can be carried over Frame Relay Question No 184 Which of the following statements is not true? Answer: For a power use, the hardware needed could be a Cisco 2500 series router with ISDN PRI interface Question No 185 Which of the following features since IOS 11.2 support private networks (as defined in RFC 1597/1918) to connect to the Internet? Answer: Network Address Translation (NAT) Question No 186 The fundamental reason one may choose Frame Relay as the WAN architecture is Answer: To save money and reduce latency Question No 187 What is not a recommended transport protocol for SDLC Tunneling (STUN)? Answer: Between two Cisco routers on a serial line, use PPP Question No 188 Which of the following are not campus LAN technical issues? www.correctexams.com - 56 - Fast Way to get your Certification Answer: Selection of an appropriate vendor for routers Selection of a protocol such as Frame Relay, X.25 or SMDS Question No 189 Which of the following is true of multicast services? Answer: Multicasts routers use IGMP to determine which hosts belong to which groups Question No 190 In a well-designed IPX network, Answer: SAP packets are controlled at the source in the access layer, while IPX resources are controlled at the distribution layer Question No 191 Summarize 158.70.35.0, 158.70.36.0, 158.70.37.0 and 158.70.35.0 and give the subnetmask Answer: 158.70.35.0/21, subnetmask is 255.255.248.0 Question No 192 If you use Internet DNS, must be on the same server as the DNS Answer: WINS Question No 193 Which of the following is true regarding AURP? Answer: You can tunnel DDP in IP Datagrams www.correctexams.com - 57 - Fast Way to get your Certification Question No 194 When using redundant FEPs, Answer: You can have the same MAC address on both FEP's Question No 195 When is a multi-protocol WAN backbone appropriate? Answer: To avoid performance problems caused by tunneling Question No 196 Which of the following is true regarding the remote mode method? Answer: A user connects to the local LAN Question No 197 The broadband ATM Switch used in large high capacity network is Answer: BPX Question No 198 Define 'subarea' in SNA Answer: A subarea may contain the FEP and should not contain any peripheral nodes attached to it Question No 199 In Windows networking with NetBIOS over TCP/IP(NBT), the broadcast method for name resolution uses Answer: LAN Services Browser www.correctexams.com - 58 - Fast Way to get your Certification Question No 200 In an AppleTalk design network Answer: RTMP is preferable on LANS, while EIGRP or AURP can be used on WANs Question No 201 Which of the following is true of GNS queries? Answer: The router will respond to GNS queries in a round-robin method Question No 202 Describe media contention Answer: Excessive collisions on an Ethernet segment Question No 203 ATM LAN Emulation (LANE) Answer: Allows LAN stations attached via ATM to treat the ATM network like a broadcast medium Question No 204 Which of the following is not true with respect to using EIGRP in an IPX network? Answer: Route redistribution has to be configured manually Question No 205 When deploying NetBIOS over IPX www.correctexams.com - 59 - Fast Way to get your Certification Answer: The most scalable method to control NetBIOS is to use filtering by name Question No 206 If you are using NetBIOS over TCP/IP(NBT), Answer: Each computer must be configured with a valid IP address Question No 207 What is the purpose of IP Exchange? Answer: To provide access to the Internet and other IP-based resources without installing an IP stack on every Novell client Question No 208 If you have to select an IP address scheme for a network with thousands of networks, use Answer: A scheme that permits VLSM Question No 209 What is true regarding Windows networking? Answer: Clients and servers share the same media in a single broadcast Question No 210 When would you use an AppleTalk Zip Reply Filter? Answer: To hide zones between different areas www.correctexams.com - 60 - Fast Way to get your Certification Question No 211 Which of the following regarding VLANs is true? Answer: Divide up broadcast domains Question No 212 Which of the following is true regarding transport for RSRB? Answer: For the lowest overhead, use no encapsulation if the topology supports it Question No 213 An advantage of controlling internetwork diameter is Answer: Limited broadcast forwarding Question No 214 IPX routers in a flat design can have nodes Answer: 48 Question No 215 What is the long-term goal of ATM? Answer: End-to-end connectivity with ATM and extension of LANE over WAN Question No 216 What is true of NLSP? Answer: It is recommended that you not exceed 400 routing nodes in a single NLSP area www.correctexams.com - 61 - Fast Way to get your Certification Question No 217 Choose the most accurate statement regarding the decision to choose Frame Relay versus X.25 Answer: For high throughput and low latency, consider Frame Relay instead of X.25, which provides a reliable but high latency network Question No 218 One reason one would want WINS in addition to DNS is Answer: To enable NETBIOS name-to-IP address translation Question No 219 When you need to provide X-25 services over an integrated IP backbone Answer: Use Cisco routers as X-25 switches Question No 220 Which of the following statements is most correct? Answer: Split horizon cannot be disabled in IPX RIP Question No 221 What protocol is used by a node to join a multicast group? Answer: IGMP Question No 222 What is the difference between a workgroup and a domain? (Choose two) www.correctexams.com - 62 - Fast Way to get your Certification Answer: Workgroups can be any logical collection of computers Any computer can join an existing workgroup or can be used to create one Question No 223 Your client is using SNA via RSRB to connect to an SNA mainframe Sessions are disconnecting at the rate of a couple per hour What remedy should you recommend? Answer: Use local ACK Question No 224 You are using NLSP and are experiencing heavy traffic volume What can you use to resolve this problem? Answer: Decrease the number of nodes to 400 or less in each NLSP area Question No 225 When using the Remote mode method Answer: The users connect to the local LAN and have the same environment as local users except for line speed Question No 226 The multihand ATM switch used as a large site backbone node is Answer: IGX Question No 227 IGX switches use which cell switching? Answer: Redundant 1.2 Gbps cell switching bus with 8, 16, or 32 slots www.correctexams.com - 63 - Fast Way to get your Certification Question No 228 In SNA, a LU-LU session occurs Answer: After the SSCP-LU and SSCP-PU connections are made Question No 229 What are the three features of Cisco's DNS/DHCP Manager? Answer: Synchronization of IP addresses Management of domain names Support for secondary addressing Question No 230 NetBIOS over IPX is also called Answer: NWLink Question No 231 What is not true of APPN? Answer: It needs the mainframe for sessions between end users Question No 232 What is not an issue related to the NMBA design? Answer: The need to forward traffic to multiple logical interfaces represented by a single interface www.correctexams.com - 64 - Fast Way to get your Certification Question No 233 Which statement is true of ATM addressing? Answer: Private ATM networks use a 20 octet or 30 hex character address at the user network interface (UNI) Question No 234 NETBIOS over NetBEUI Answer: Is a highly scalable preferred method for Windows networking Question No 235 Choose the true statements related to the Microsoft LAN Services Browser: Answer: Clients register their names periodically by sending broadcasts Computers send broadcasts to elect a browse master Question No 236 Which of the following apply to broadcast and bandwidth domains? Answer: A bandwidth domain may be thought of as a domain consisting of all that is associated with a bridge/switch, whereas a broadcast domain may be thought of as a domain consisting of all that is associated with a port in a router Question No 237 The main goal of desktop protocol design is Answer: To contain excessive broadcasts between servers and clients Question No 238 The LMHOSTS method for name resolution www.correctexams.com - 65 - Fast Way to get your Certification Answer: Does not scale well because of the extensive manual configurations needed Question No 239 Cisco PIX is Answer: An address translation and firewall service Question No 240 The function of Distribution layer is Answer: To provide network security for access to services and restrictions of network advertisements by routing protocols including route summarization Question No 241 When using VLANS, to decrease traffic through the router you should which of the following? Answer: Create a VLAN by function rather than by location Question No 242 When using AutoInstall on a serial link, be sure that Answer: HDLC is used on the other end Question No 243 Which statement is true of SAP advertisements in an IPX network? Answer: SAP updates every 60 seconds with SAPS per 480 packet bytes www.correctexams.com - 66 - Fast Way to get your Certification Question No 244 Both distance-vector and link-state protocols converge more quickly if there is A B C D Load balancing Consistent use of the Network Time Protocol A loop-detection mechanism Route redistribution between protocols Answer: C Question No 245 When examining a client's requirements for a switched campus LAN design, you probably not need to investigate A B C D What protocols are in use Routing protocol convergence time The level of broadcast activity Who the power users are Answer: D Question No 246 When considering routing protocol traffic in a Frame Relay cloud, which of the following statements is most accurate ? A B C D Routing updates should consume less than 20 percent of the bandwidth Maximize the number of peer routers that exchange routing tables to ensure reliability Routing protocol traffic in a Frame Relay cloud is usually not an issue The main issue is the amount of CPU usage on peer routers caused by routing protocol traffic Answer: A(?) Question No 247 In an Basic Rate ISDN (BRI), the bit rate on the line totals www.correctexams.com - 67 - Fast Way to get your Certification A B C A 192-Kbps 144-Kbps 128-Kbps D.Varies with traffic volume Answer: B Question No 248 The hierarchical model for internetwork design A B C D Alleviates concerns about internetwork diameter Defines the number of allowed hops in an internetwork Applies to large internetwork, but not small internetworks Helps a designer implement scalable internetworks Answer: D Question No 249 A remote access method that is set up to service one particular need is refereed to as A B C D Remote gateway Remote node Remote control Remote mail Answer: A Question No 250 A bandwidth domain: A B C D Is used to isolate broadcast traffic Is all devices associated with one port on a router Is scalable, depending on the amount of total traffic Is relevant for Ethernet but not Token Ring www.correctexams.com - 68 - Fast Way to get your Certification Answer: B A bandwidth domain, or a collision domain, is shared by all devices on a single switched port Question No 251 When comparing the advantages and disadvantages of a full-mesh versus a partial-mesh Frame Relay design, which of the following statements is most accurate ? A B C D A full mesh is mode expensive due to more routers Split horizon limits connectivity in a full mesh A partial mesh is less expensive due to fewer virtual circuits Broadcast copying overhead is higher in a partial mesh Answer: C Question No 252 Virtual LAN, Frame Relay does not inherently support broadcast What can be done in a Frame Relay network to support protocols that require broadcast ? A B C D To simulate a broadcast LAN inverse ARP can be used A nonbroadcast multiaccess model can be used, which eliminates the need for broadcast Router connected by mesh of Frame Relay circuits can copy broadcast to peers A solution to this issue has not yet been developed Answer: C (?) Question No 253 For robust routing over an X.25 core network use A B C D X.25 switching LMI signaling Point-to-point subinterface configuration A generic route encapsulation (GRE) tunnel Answer: UNKNOWN www.correctexams.com - 69 - Fast Way to get your Certification Question No 254 Which of the following features would most likely be implemented on a router at the access layer in the hierarchical design model? A B C D Header, link, and payload compression Filtering by area, network, and zone Proxy services Optimized wide-area transport Answer: C www.correctexams.com - 70 - ... Point -to- Point and Multipoint Protocols? A B Frame Relay SMDS www.correctexams.com - 36 - Fast Way to get your Certification C D X.25 ATM Answer: A, D Question No 118 Which of the following customers... Non-broadcast multiaccess Point -to- point Broadcast multi-access Answer: A, B, C Question No 103 NetBIOS can be transported across a network via www.correctexams.com - 32 - Fast Way to get your. .. configure the router to use: www.correctexams.com - 19 - Fast Way to get your Certification A B C D Broadcast forwarding Secondary addressing Different routing protocols Fast ARP caching Answer: