An Introduction to Integrated Networking Test 005 TEST INFORMATION: - Elective for Certified LAN Server Engineer - Number of questions: 84/85 - Passing % Score: 65 - Length (in minutes): 60 PREPARATION: - IBM Courses G3795 An Introduction to Integrated Networking An Introduction to Integrated Networking Test 005 Objectives Version 1 SECTION 1 - CONCEPTS AND TERMINOLOGY - Define, differentiate, and give examples of the following: - Architectures - Standards - Protocols - Compare and contrast the following: - Local Area Networks (LAN) - Metropolitan Area Networks (MAN) - Wide Area Networks (WAN) - Value Added Networks (VAN) - List four network interconnection technologies. - List the environments today's networks must support. - Identify the organizations responsible for establishing and maintaining network related standards. - Define the term 'internet' and differentiate it from THE Internet. SECTION 2 - HARDWARE AND SOFTWARE - Briefly describe a methodology that could assist in the selection of network hardware and software. - Briefly describe the hardware, operating systems, and network platforms available from the following vendors: - IBM - DEC - HP (Hewlett Packard) - Apple - SUN - Novell - Banyan SECTION 3 - LOCAL AREA NETWORKS - Describe the characteristics of a Local Area Network. - List and briefly describe important characteristics of cable used for LANs. - Identify cable types that can be used for LANs and briefly describe each. - State the differences between baseband and broadband transmission. - Identify three hybrid topologies used for LANs and the advantages and disadvantages of each. - List the common functions of the Media Access Control (MAC) sublayer as implemented by IEEE LANs. - Identify the types of MAC addresses used on LANs and state the use of each type. - Identify the following characteristics of IEEE 802.5 LANs: - Access method - Topology - Speed(s) - Media supported - How maximum cable lengths are determined - Fault isolation capabilities - Identify the following characteristics of IEEE 802.3 LANs: - Access method - Topology - Speed(s) - Media supported - How maximum cable lengths are determined - Fault isolation capabilities - Identify differences between the IEEE 802.3 and Ethernet DIX V2 LAN implementations. - Briefly explain the characteristics of IEEE 802.4 LANs. - State the purpose of the Logical Link Control (LLC) sublayer as defined by the IEEE 802.2 standard. - State and briefly explain the 3 types of LLC services as defined by the IEEE 802.2 standard. - Briefly describe the characteristics of the following vendor proprietary networks: - IBM PC network - Datapoint Arcnet - APPLE AppleTalk Phase I - Identify the following characteristics of fiber distributed data networks as defined by the ANSI X3T9.5 standard: - Access method - Topology - Speed(s) - Media supported - Fault isolation capabilities - Identify the purpose of communications (networking) protocols. - Briefly describe how each of the following networking protocols are used in integrated networks and identify which vendors are most often associated with each protocol: - NetBIOS - SNA - TCP/IP - NetWare - AppleTalk - XNS - DECnet - State the two ways a network station can identify the networking protocol carried in LAN MAC frame. - Briefly explain Sub-Network Access Protocol and how it is used in today's integrated networks. - Briefly explain what a Network Operating System (NOS) is and identify at least three vendor NOS offerings. - Identify the three types of stations that can be attached to LANs today. SECTION 4 - LAN INTERCONNECT TECHNOLOGIES - Associate a given interconnection technology with one or more layers of the OSI model. - Briefly describe the purpose of a repeater and list the technical considerations associated with the use of repeaters. - Identify when repeaters are needed for Token-Ring and for Ethernet L ANs. - Briefly describe the purpose of a bridge. - Define, and briefly describe the operation of, the following bridging techniques: - Source route bridging - Transparent bridging - Source Route Transparent (SRT) bridging - Translation bridging - List and briefly explain at least three issues associated with LAN bridging. - Identify at least five criteria that could be used in the selection of a particular vendor's bridge. - Briefly describe the purpose of a router. - Identify the major components of a router. - Explain how a router routes. - Compare and contrast bridges and routers. - Explain encapsulation as it relates to routing. - List at least five routing protocols and associate each with the protocol(s) it routes. - Identify at least five criteria that could be used in the selection of a particular vendor's router. - Briefly describe the purpose of a gateway. SECTION 5 - SNA NETWORKING - Differentiate between an SNA Physical Unit (PU) and a Logical Unit (LU). - Describe and give examples of a traditional SNA Subarea (hierarchical) network. - Define the acronyms MSN and SNI as they relate to SNA networking. - List the network connectivity alternatives supported for an SNA network. - Identify the relationship between an SNA network and a LAN. - Explain how IBM 3720 devices are supported in a Token-Ring LAN and Ethernet LAN environment. - List and briefly describe the types of SNA gateways. - Using the appropriate terminology, describe Advanced Program to Program Communications (APPC) as it relates to SNA networks. - Describe and give examples of an SNA Advanced Peer to Peer Network (APPN). - Identify and briefly describe the functions of the three node types defined for APPN networks. - Identify IBM hardware and software platforms that can participate in an APPN network. - Describe the network flows that are required in an APPN network prior to establishing a session between two applications in separate APPN nodes. SECTION 6 - TCP/IP AND OSI - List and briefly describe the functional layers associated with the TCP/IP architecture. - Explain the following as they relate to TCP/IP network addressing: - Format - Classes - Guidelines - Assignment - Subnet Addressing - Identify the protocols that are associated with the TCP and IP functional layers. - Describe the following as they relate to the IP protocol: - Purpose and use - Datagram format - Fragmentation - Routing - Identify at least four routing protocols associated with IP routing. - Briefly explain the use of the following IP related protocols: - Internet Control Message Protocol (ICMP) - Address Resolution Protocol (ARP) - Reverse Address Resolution Protocol (RARP) - List functions of the User Datagram Protocol (UDP). - Describe the following as they relate to the TCP protocol: - Purpose and use - Flow control capabilities - Sockets - Briefly describe the purpose and use of the following TCP/IP applications: - Telnet - File Transfer Program (FTP) - Simple Mail Transfer Protocol (SMTP) - List the IBM TCP/IP products. - Relate TCP/IP applications with OSI equivalent functions. SECTION 7 - HIGH-SPEED TRANSPORT TECHNOLOGIES - Briefly describe the structure, terminology and issues associated with today's telecommunications networks. - Briefly describe traffic patterns associated with today's integrated networks. - Compare and contrast analog and digital transmission as it applies to telecommunications networks. - List and briefly explain the current digital communications offerings available from common carriers. - Briefly describe the following as they relate to ISDN: - Concepts - Available user interface rates - User interface requirements - Standards - Briefly describe the following as they relate to X.25 packet switching networks: - Concepts - User interface requirements - Available user interface rates - Standards - Briefly describe the following as they relate to frame relay networks: - Concepts - User interface requirements - Available user interface rates - Standards - Briefly describe the following as they relate to Switched Multi-Megabit Data Services (SMDS): - Concepts - User interface requirements - Available user interface rates - Standards - Briefly explain the concepts of Asynchronous Transfer Mode (ATM) and state why it is of potential significance to the future of telecommunications. - Briefly explain the concepts associated with the emerging IEEE 802.6 MAN standard. - Briefly explain the concepts of Synchronous Optical Network (SONET) and give some examples of standardized data rates. - Define "Bypass" and state the advantages of Bypass technologies over regular telecommunications network services. - Given a network diagram, identify the relative position of each of the following technologies and/or emerging standards: - T-1,FT-1 - ISDN - SMDS - Frame Relay - ATM - SONET - IEEE 802.6 - FDDI SECTION 8 - NETWORK MANAGEMENT - List the five network management disciplines and explain each. - Compare and contrast the three approaches to network management. - Briefly describe IBM strategy for network management and list products used to implement this strategy. - Briefly describe DEC's strategy for network management and list products used to implement this strategy. - Briefly describe ATC strategy of network management and list products used to implement this strategy. - Describe the Simple Network Management Protocol (SNMP) process and explain how it can be used to manage TCP/IP networks. - Briefly describe the proposed OSI approach to network management and state some advantages and disadvantages of this approach relative to SNMP. - Explain IBM strategy for managing Token-Ring networks and identify products used to implement this approach. - Discuss the future of network management relative to emerging standards and industry directions. An Introduction to Integrated Networking Sample Test 005 Version 2 SECTION 1 - HARDWARE / SOFTWARE VENDORS 1. Which are correct associations of product families with their specific vendors? a. VAX -- DEC b. ULTRIX -- HP c. SPARC... -- Sun d. QUADRA -- Apple SECTION 2 - LOCAL AREA NETWORKS 2. The IEEE definition of a LAN includes a. cable and MAC functions only b. cable, MAC, and LLC functions c. cable, MAC, LLC functions, and networking protocols d. cable, MAC, LLC functions, networking protocols, and the networking system (e.g., Novell's NetWare) 3. Which type of cable was specified in the original token-ring standard? a. fiber b. twinax c. shielded twisted-pair d. unshielded twisted-pair 4. The MAC sublayer is defined as part of Level ______ in the OSI reference model. a. 1 b. 2 c. 3 d. 4 5. Which statement about Ethernet LANs is true? a. With Ethernet LANs, equipment using the DIX V2 standard must be replaced when migrating to the IEEE 802.3 standard. b. With Ethernet LANs, equipment using the IEEE 802.3 standard is interoperable with equipment using the Ethernet DIX V2 standard. c. With Ethernet LANs, equipment using the IEEE 802.3 standard cannot coexist on the same Ethernet LAN segment as equipment using the DIX V2 standard. d. With Ethernet LANs, equipment using the IEEE 802.3 standard can coexist on the same Ethernet LAN segment as equipment using the DIX V2 standard but cannot interoperate with it. 6. Which statements about Novell's set of NetWare offerings are true? a. With Novell's NetWare offerings, support for SNA host connections is available. b. With Novell's NetWare offerings, support for multiple operating systems is available. c. With Novell's NetWare offerings, networks can use TCP/IP as an alternative communications protocol. d. With Novell's NetWare offerings, the only available routing support is for NetWare-based products. 7. Which statements about Subnetwork Access Protocol (SNAP) are true? a. SNAP headers use a SAP of X'AA'. b. SNAP is used mainly on Ethernets. c. The SNAP Type field is 16 bits in size. d. A networking protocol uses either a registered SAP value or SNAP. SECTION 3 - LAN INTERCONNECT TECHNOLOGIES 8. Which LANs are most likely to need repeaters? a. FDDI b. IEEE 802.3 c. IEEE 802.5 d. Ethernet V2 9. Which statement about a source route bridge is true? a. A source route bridge forwards frames based on the source MAC address. b. A source route bridge performs a network layer routing function. c. A source route bridge forwards frames based on the destination MAC address. d. A source route bridge forwards frames based on routing information contained in the Routing Information field. 10. If a router supports multiple networking protocols, it needs to have a separate ________ for each protocol. a. hard drive b. LAN adapter c. WAN adapter d. routing table 11. Which interconnect devices must have special programming to support multiple networking architectures (e.g., OSI and DECnet) concurrently? a. bridges b. routers c. gateways d. repeaters 12. Which are TCP/IP routing protocols? a. Open Shortest Path First (OSPF) b. Gateway-to-Gateway Protocol (GGP) c. Routing Information Protocol (RIP) d. Routing Table Maintenance Protocol (RTMP) SECTION 4 - SNA NETWORKING 13. Which statement about LU sessions is true? a. SNI allows sessions between LUs that are in different VTAM domains, but are in the same network. b. MSN allows sessions between LUs that are in different VTAM domains, but are in the same network. c. MSN allows sessions between LUs that are in the same VTAM domain, but are in different networks. d. SNI allows sessions between LUs that are in the same VTAM domain, but are in different networks. 14. Which connections can be used by a 3174 for its upstream communication? a. coax b. FDDI c. SDLC d. token-ring 15. Which statement about an OS/2 SNA gateway is true? a. An OS/2 SNA gateway can be channel-attached to an IBM SNA host. b. An OS/2 SNA gateway performs the same function as a 3174 SDLC-attached gateway. c. An OS/2 SNA gateway provides a single PU but multiple LU images to the host. d. An OS/2 SNA gateway performs the same function as a 3174 channel-attached gateway. 16. Which are examples of Service Transaction Programs? a. DIA, DDM, FTP b. DRDA, DDM, APPN c. SNA/DS, DIA, DDM d. SNA/DS, DIA, FTP 17. An APPN node that may have multiple connections to other APPN nodes, but which can have only one pair of CP-CP sessions, is called a. an End Node b. a T2.1 Node c. a Network Node d. a Low Entry Networking Node SECTION 5 - TCP/IP AND OSI 18. Which TCP/IP protocol layer relationships are correct? a. ARP -- Internet b. TCP -- Internet c. IP -- Transport d. UDP -- Transport 19. The TCP/IP address 144.16.98.200 is an example of a class ________ address. a. A b. B c. C d. D 20. Which subnet mask lets you have a maximum of 254 hosts on any single subnetwork? a. 255.0.0.0 b. 255.255.0.0 c. 255.255.240.0 d. 255.255.255.0 21. Which statements about IP are true? a. IP uses connectionless LLC services. b. IP performs error detection and correction of lost packets. c. IP routing is based on the IP source address in the IP header. d. Each adapter that carries IP traffic is associated with a unique IP address. 22. Which protocol is used by a TCP/IP router to notify a TCP/IP host that a packet cannot be forwarded? a. ARP b. ICMP c. RARP d. SNMP 23. Which statement about TCP is true? a. TCP provides no flow control. b. TCP provides no error recovery. c. TCP provides no fragmentation support. d. TCP provides no full duplex transmission capability. SECTION 6 - HIGH-SPEED TECHNOLOGIES 24. Which are benefits of using digital transmission techniques instead of analog transmission techniques? a. Digital techniques do not require repeaters. b. Digital techniques are not susceptible to impairments. c. Digital techniques support higher speeds over a given cable than over others d. Digital signal processors (DSUs/CSUs) are less complex and costly than analog ones (modems). 25. What is the maximum supported transmission speed according to the frame relay standard? a. 64 Kbps b. 1.544 Mbps c. 2.048 Mbps d. 51.84 Mbps 26. What is the maximum supported transmission speed according to the SMDS standard? a. 64 Kbps b. 1.544 Mbps c. 2.048 Mbps d. 44.75 Mbps 27. Which technologies are suitable for both data traffic and for voice? a. ATM b. FDDI c. ISDN d. frame relay 28. Which statement about X.25 networks is true? a. In X.25 networks, switched virtual circuits are analogous to leased data lines. b. In X.25 networks, the data-link control protocol used by X.25 is based on HDLC LAP-D. c. In X.25 networks, when mapped to the OSI model, X.25 network functions fall into the bottom two layers. d. In X.25 networks, since all of the X.25 functions reside in the network itself, no user equipment is required to connect directly to an X.25 network. SECTION 7 - NETWORK MANAGEMENT 29. In IBM's SNA network management terminology, NetView is an example of a. a focal point b. an entry point c. a service point d. a collection point 30. Which are benefits of using the OSI standardized approach to management? a. It provides management support for all OSI layers. b. OSI implementation costs are lower than for SNMP. c. OSI management processes can be shared between the managed and the managing stations. d. OSI managed stations can report information to the managing station without being polled. ANSWER KEY 1. acd 23. c 2. b 24. cd 3. c 25. c 4. b 26. d 5. d 27. ac 6. abc 28. b 7. ac 29. a 8. abd 30. acd 9. d 10. d 11. bc 12. abc 13. b 14. cd 15. c 16. c 17. a 18. ad 19. b 20. d 21. ad 22. b