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Network Study Guide Ch 5-8 2nd ed

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Network Study Guide Ch 5-8 2nd ed Powered By Docstoc
					                                            Net + Study Guide Ch5-8

____ 1. Physical topologies are not classified as which of the following?
           a. bus c. star
           b. ring d. daisy chain




____ 2. The figure above depicts a ____ topology.
           a. bus c. star
           b. ring d. daisy chain

____ 3. Which is not true about networks based on the bus topology?
           a. They are expensive to set up.                                    c. They are difficult to
                                                                                  troubleshoot.
            b. As you add more nodes, the network's performance                d. None of the above.
               degrades.

____ 4. In a ____ topology, each node is connected to the two nearest nodes, and data are transmitted clockwise.
            a. bus c. star
            b. ring d. daisy chain

____ 5. In most ring networks, ____ cabling is used as the physical medium.
            a. coaxial        c. fiber-optic
            b. twisted-pair d. Either B or C.

____ 6. In most bus networks, ____ cabling is used as the physical medium.
            a. coaxial        c. fiber-optic
            b. twisted-pair d. Either A or B.

____ 7. Which of the following does not describe token passing?
           a. 3-byte tokens are used.
           b. The token is transmitted from one node to another around the ring.
           c. The token packet is transformed to a data frame.
           d. Because of the transmission control, an acknowledgement is not needed.

____ 8. In a ____ topology, every node on the network is connected through a central device.
            a. bus c. star
            b. ring d. daisy chain

____ 9. In most star networks, ____ cabling is used as the physical medium.
            a. coaxial         c. fiber-optic
            b. twisted-pair d. Either B or C.

____ 10. Which is not true about star topologies?
          a. They are more fault-tolerant than bus or ring topologies.
          b. They require more cabling than bus or ring topologies.
          c. They require more configuration than bus or ring topologies.
          d. None of the above.

____ 11. Which of the following is not an advantage gained from arranging topologies in a hierarchy?
          a. The ability to segregate bandwidth among different groups.
          b. Ease of adding or isolating different network groups.
          c. The flexibility to interconnect different network types.
          d. The use of a single protocol.

____ 12. Which is not a way that WANs differ from LANs?
          a. They use enterprise-wide topologies as building blocks.
          b. They typically cover a larger distance.
          c. A WAN link will only carry IPX/SPX and/or TCP/IP traffic.
          d. None of the above.

____ 13. A ____ WAN is often the best option for organizations with only a few sites and who have the capability to
           have dedicated circuits.
           a. simple          c. ring
           b. peer-to-peer d. star
____ 14. The figure above depicts a ____ WAN.
           a. star c. tiered
           b. ring d. mesh




____ 15. The figure above depicts a ____ WAN.
           a. star c. tiered
           b. ring d. mesh

____ 16. Which type of WAN configuration is the most fault-tolerant?
            a. star c. tiered
            b. ring d. mesh




____ 17. The figure above depicts which WAN topology?
           a. star c. tiered
           b. ring d. mesh

____ 18. Because ____ switching monopolizes its piece of bandwidth while two stations remain connected, it is not
           an economical technology.
           a. connection c. packet
           b. circuit       d. message

____ 19. ____ switching establishes a connection between two devices, transfers the information to the second device,
           and then breaks the connection.
           a. Connection c. Packet
           b. Circuit        d. Message

____ 20. Examples of ____-switched networks include Ethernet and the Internet.
           a. connection c. packet
           b. circuit      d. message

____ 21. Which is not true about demand priority?
          a. No workstation except the source and destination can "see" the data.
          b. Collisions occur.
          c. It requires an intelligent hub.
          d. None of the above.

____ 22. Which is true with traditional Ethernet LANs?
          a. Bandwidth must be shared by all devices on a segment.
          b. Stations can send and receive data simultaneously.
          c. Stations can transmit a signal when another station on the same segment is sending or receiving data.
           d. Both A and B.

____ 23. Which is not true with switched-Ethernet?
          a. It increases the effective bandwidth of a network segment, because fewer workstations must vie for
               the same time on the wire.
          b. Stations can send and receive data simultaneously over different logical network segments.

           c. It is very effective when there is heavy traffic and higher speeds are needed.
           d. None of the above.

____ 24. Which is not true?
          a. A 1Gigabit Ethernet uses demand priority transmission.
          b. 1Gigabit Ethernet is often part of a network's backbone.
          c. 1Gigabit Ethernet performs better over fiber than over UTP cable.
          d. None of the above.

____ 25. ____ frame is the default frame type for versions 4.x and higher of the Novell NetWare network operating
           system.
           a. Novell Proprietary 802.3 c. IEEE 802.3
           b. Ethernet II                  d. IEEE 802.3 SNAP

____ 26. The ____ frame contains the Logical Link Control layer.
           a. Novell Proprietary 802.3 c. IEEE 802.3
           b. Ethernet II                 d. IEEE 802.3 SNAP




____ 27. The figure above depicts a(n) ____ frame.
           a. Novell Proprietary 802.3 c. IEEE 802.3
           b. Ethernet II                  d. IEEE 802.3 SNAP




____ 28. The figure above depicts a(n) ____ frame.
            a. Novell Proprietary 802.3 c. IEEE 802.3
            b. Ethernet II              d. IEEE 802.3 SNAP

____ 29. Which is not true about Token Ring?
          a. It offers high reliability.            c. It offers high fault-tolerance.
          b. It is fairly inexpensive to implement. d. None of the above.

____ 30. Token Ring networks ____.
           a. have collisions
           b. run at 16 or 100 Mbps
           c. do not impose distance limitations on the length of a LAN segment
           d. do not use bandwidth efficiently

____ 31. Which type of connector is not used on a Token Ring network?
          a. RJ-45 c. DB-9
          b. 10-T d. type 1 IBM

____ 32. Which is not included in every Token Ring frame?
          a. Starting Delimiter c. Organizational ID
          b. Ending Delimiter d. Access Control

____ 33. You may attach up to ____ stations on a Token Ring network running on shielded twisted-pair cabling.
           a. 50 c. 255
           b. 72 d. 500

____ 34. ____ is a logical topology that relies on a fixed packet size to achieve data transfer rates up to 9953 Mbps.
           a. FDDI             c. LAN Emulation
           b. Token Ring d. ATM

____ 35. A popular implementation of ____ involves connecting LANs located in multiple buildings, such as those on
           college campuses.
           a. FDDI           c. LAN Emulation
           b. Token Ring d. ATM

____ 36. ATM relies on ____ circuits, which are connections between network nodes that, while based on potentially
           disparate physical links, logically appear to be direct dedicated links between those nodes.
           a. direct       c. virtual
           b. available d. priority

____ 37. NICs belong to the ____ layer of the OSI Model.
           a. Physical c. Data Link
           b. Network d. Both A and C.

____ 38. For a desktop or tower PC, the network adapter is likely to be a type of ____.
           a. expansion board c. network interface board
           b. bus                 d. extension card
____ 39. Which type of bus is 32 or 64-bits, is characterized by its shorter connector length, and offers a much faster
          data transmission capability than the other types?
          a. ISA c. EISA
          b. PCI d. MCA




____ 40. The figure above depicts a ____.
           a. USB network adapter c. parallel port network adapter
           b. PCMCI interface          d. Token Ring network adapter

____ 41. Which is used to connect multiple types of peripherals, including modems, mice, and audio players?
          a. USB network adapter c. parallel port network adapter
          b. PCMCI interface           d. communications adapter

____ 42. Which was the first type of externally attached network adapter and was primarily designed for use on
          laptops?
          a. USB network adapter c. parallel port network adapter
          b. PCMCI interface            d. PCA adapter

____ 43. Which is the most popular type of wireless adapter?
          a. USB network adapter           c. parallel port network adapter
          b. PC Card network adapter d. Both A and B.
____ 44. Printer network adapters can provide processing and support for ____ of the OSI Model layers.
            a. 2 c. 5
            b. 3 d. 7

____ 45. Jumpers are not used today on ____.
           a. hard drive controllers      c. system boards
           b. modern network adapters d. None of the above.

____ 46. IRQ numbers range from ____.
           a. 1 to 15 c. 0 to 8
           b. 0 to 7 d. 0 to 15

____ 47. Each interrupt must have a unique ____, a number that uniquely identifies that component to the main bus.
           a. IRQ name          c. IRQ number
           b. IRQ identifier d. IRQ label

____ 48. Which IRQ is typically reserved for a floppy disk controller?
          a. 1 c. 6
          b. 16 d. 4

____ 49. Which IRQ is typically reserved for LPT1?
          a. 2 c. 3
          b. 7 d. 9

____ 50. Which is not a problem that may occur when two devices attempt to use the same IRQ?
          a. The computer may run much more slowly than usual.
          b. The computer may experience intermittent data errors during transmission.
          c. Video or sound card problems may occur.
          d. None of the above.

____ 51. The memory range indicates, in ____ notation, the area of memory that the network adapter and CPU will
           use for exchanging data.
           a. integer c. decimal
           b. binary d. hexadecimal

____ 52. To change a network adapter's ____, you will need a bootable floppy disk containing the configuration or
           DOS install utility that shipped with the network adapter.
           a. firmware c. CMOS
           b. BIOS         d. Either B or C.

____ 53. Which is not true?
          a. When you change the firmware, you are writing to the computer's hard disk.
          b. The firmware holds settings, such as whether a network adapter uses full duplexing or whether it can
               detect a network's speed.
          c. Network adapter configuration utilities allow you to perform diagnostics of the network adapter's
               physical components and connectivity.
            d. None of the above.

____ 54. Which NIC feature allows the NIC's processor to determine when to switch traffic between internal cards?
          a. Management capabilities (SNMP) c. Load balancing
          b. RAM buffering                        d. Dual channels

____ 55. Which NIC feature provides additional memory on the NIC?
          a. Management capabilities (SNMP) c. Load balancing
          b. RAM buffering                        d. Dual channels

____ 56. Which is not true about repeaters?
          a. They contain one input port.
          b. They can improve or correct a bad signal.
          c. They contain one output port.
          d. They are suited only to bus networks.

____ 57. In addition to connecting Macintosh and PC workstations, hubs can connect ____.
            a. print servers c. fileservers
            b. switches        d. All of the above.

____ 58. Which is found only on Ethernet hubs?
          a. Traffic LED c. Collision LED
          b. Link LED         d. Warning LED

____ 59. A hub that only repeats signals is known as a(n) ____ hub.
           a. standalone c. passive
           b. intelligent d. repeating

____ 60. A hub that serves a workgroup of computers that are isolated from the rest of the network is called a ____
           hub.
           a. standalone c. passive
           b. remote         d. repeating

____ 61. Which is not true about standalone hubs?
          a. They are typically connected in hierarchical or daisy-chain fashion.
          b. They are best suited to small, independent departments, home offices, or test lab environments.

            c. They introduce a single point of failure to the network.
            d. None of the above.

____ 62. A hub that is physically designed to be linked with other hubs in a single telecommunications closet is called
           a ____ hub.
           a. modular c. common
           b. stackable d. linkable

____ 63. A ____ hub provides a number of interface options within one chassis.
            a. modular c. stackable
            b. complex d. linkable

____ 64. Which is the most flexible type of hub?
          a. modular c. standalone
          b. stackable d. linkable

____ 65. If your network cannot tolerate any downtime, consider purchasing ____.
            a. a modular hub with redundant power supplies
            b. a passive standalone hub
            c. a hub with at least 24 ports
            d. switches, rather than hubs

____ 66. In ____ bridging, a bridge begins polling a network to learn about its physical topology as soon as it is
            installed.
            a. automatic c. installation
            b. transparent d. quick

____ 67. Which is not true about bridges?
          a. They distinguish between different protocols.
          b. They can move data more rapidly than traditional routers.
          c. They take longer to transmit data than repeaters or hubs.
          d. None of the above.

____ 68. Which is not true about bridges?
          a. They can enhance network performance by filtering traffic directed to the various nodes.
          b. They can detect and discard flawed data packets that may create congestion on the network.

            c. They extend the maximum distance of a network beyond its previous limits.
            d. None of the above.

____ 69. Switches can operate in the ____ layer of the OSI Model.
           a. Data Link c. Transport
           b. Network d. All of the above.

____ 70. A router with multiple slots that can hold different interface cards or other devices is called a ____ router.
           a. modular c. multiple
           b. complex d. dynamic

____ 71. Most modern networks use ____ routing.
          a. static     c. intelligent
          b. passive d. dynamic

____ 72. Each time a packet passes through a router, it has made a ____.
           a. trip       c. hop
           b. transfer d. jump

____ 73. Which is not true?
          a. Routers are very flexible.
          b. Routers are very simple devices to install.
          c. Routers may filter out broadcast transmissions to alleviate network congestion.
          d. Routers may monitor network traffic and report statistics to a MIB.

____ 74. Routers communicate with each other through ____.
           a. routable protocols c. routing protocols
           b. routing languages d. Either A or C.

____ 75. Which is the oldest routing protocol?
          a. OSPF c. RIP
          b. EIGRP d. BGP

____ 76. A WAN link is typically described as ____.
           a. hub-to-hub          c. point-to-point
           b. switch-to-switch d. site-to-site

____ 77. Which is a way that LANs and WANS are similar?
          a. They use the same transmissions systems.
          b. They primarily carry digital data.
          c. They typically use coaxial or twisted pair cabling.
          d. They usually have the same topologies.

____ 78. A continuously available communication link is called a(n) ____ link.
           a. dedicated c. on-line
           b. dial-up      d. available

____ 79. Most WANs take the form of ____.
          a. simple star networks c. mesh configurations
          b. ring networks          d. Either B or C.

____ 80. Which is not true?
          a. WANs typically traverse a wider geographical area than LANs.
          b. WANs provide faster transmission than LANs.
          c. LANs provide better transmission than WANs.
          d. None of the above.

____ 81. The ____ is the regulatory agency that sets standards and policy for telecommunications transmission and
           equipment in the United States.
           a. ITU c. FCC
           b. CCC d. FRC
____ 82. The most advanced PSTN modems advertise a connection speed of ____.
           a. 64 Kbps c. 256 Kbps
           b. 56 Kbps d. 128 Kbps

____ 83. X.25 can support ____ throughput.
           a. 2.048-Mbps c. 64-Mbps
           b. 45-Mbps        d. 1.544-Mbps

____ 84. Frame relay can support ____ throughput.
            a. 2.048-Mbps c. 1.544-Mbps
            b. 45-Mbps       d. Either B or C.

____ 85. ____ was originally developed and used for communications between mainframe computers and remote
           terminals.
           a. frame relay c. ISDN
           b. X.25            d. SONET

____ 86. Which is not true?
          a. X.25 is suitable for time-sensitive applications such as audio or video.
          b. X.25 ensures data reliability over long distances.
          c. Frame relay supports higher bandwidth than X.25.
          d. None of the above.

____ 87. Which is not an advantage to leasing a frame relay circuit over leasing a dedicated service.
          a. You pay for only the amount of bandwidth required.
          b. It is much less expensive.
          c. It follows an established worldwide standard.
          d. It provides more privacy.

____ 88. How is ISDN distinguished from PSTN?
           a. It uses the telephone carrier's lines.
           b. It relies exclusively on digital connections.
           c. It can carry data and voice simultaneously.
           d. Both B and C.

____ 89. In an ISDN connection, the "B" channel refers to the ____.
            a. bearer channel c. bonding channel
            b. basic channel d. broadband channel

____ 90. PRI uses ____ B channels.
           a. 1 c. 23
           b. 10 d. 64

____ 91. Which is not true?
          a. PRI and BRI connections may be interconnected on a single network.
            b. PRI channels can be carried by T1 trunks.
            c. BRI links require an extra termination device, called a Network Termination 2 (NT2).
            d. None of the above.

____ 92. ____ transmission uses time division multiplexing over two wire pairs to divide a single channel into
           multiple channels.
           a. DSL         c. Cable modem
           b. T-carrier d. Both A and B.

____ 93. A ____ circuit can carry the equivalent of 672 voice or data channels, giving a maximum data throughput of
           44.736 Mbps.
           a. T0 c. T3
           b. T1 d. T4

____ 94. For a company that expects their traffic to grow to T1 capacity eventually, a ____ lease is a good option.
           a. partial T1      c. simple T1
           b. fractional T1 d. basic T1

____ 95. For T3s, ____ cabling is used.
           a. fiber-optic c. microwave
           b. coaxial       d. All of the above.

____ 96. A ____ serves as the connection point for a T1 line at the customer's site.
           a. T1 modem c. router
           b. CSU/DSU d. bridge

____ 97. A ____ is a device that combines multiple voice or data channels on one line.
           a. multiplexer c. router
           b. CSU/DSU d. bridge

____ 98. On a typical T1-connected data network, the terminal equipment does not consist of ____.
           a. multiplexers c. routers
           b. bridges         d. None of the above.

____ 99. Which is not true about DSL?
          a. It is more expensive than a T1. c. It is a dedicated service.
          b. It is easy to install.          d. There are at least 8 types of DSL.

____ 100. ____ is the most popular form of DSL.
           a. G.Lite c. SDSL
           b. HDSL d. ADSL

____ 101. Inside the carrier's POP, a device called a DSL ____ aggregates multiple DSL subscriber lines and
            connects them to a larger carrier.
            a. converter              c. modem
            b. access multiplexer d. multiporter
____ 102. Which is not true about cable?
           a. It provides a dedicated, or continuous, connection that does not require dialing up a service provider.

            b. Each customer has his own line to the cable company head-end; access does not have to be shared.

            c. The throughput of a cable line is fixed.
            d. Customers must purchase a special cable modem to transmit and receive signals over cable wiring.


____ 103. The cable company's central office is known as the ____.
           a. head-end c. central point
           b. controller d. network head

____ 104. What is the maximum data transfer rate of SONET?
           a. 39.8 Gbps c. 64 Gbps
           b. 45-Mbps d. 64 Kbps

____ 105. SONET integrates well with ____.
           a. ATM         c. ISDN
           b. T-carriers d. All of the above.

____ 106. SONET technology is typically implemented by ____.
           a. small businesses           c. large global companies
           b. medium-sized businesses d. Both B and C.

____ 107. Which is the most reliable?
           a. SONET c. T1
           b. ISDN       d. DSL

____ 108. Which is not true about VPNs?
           a. The security techniques used are purely software-based.
           b. The software required to establish them is usually inexpensive.
           c. They do not require leasing a full T1 circuit.
           d. None of the above.

____ 109. Which is not true about Citrix System, Inc.'s Independent Computing Architecture?
           a. It is easy to use.
           b. It enables the workstation to communicate with the LAN from anywhere.
           c. It can only be used with a private connection.
           d. None of the above.

____ 110. SLIP and PPP are necessary to transport ____ layer traffic over serial interfaces.
           a. Network c. Data Link
           b. Physical d. Both B and C.
____ 111. Which is not true about PPP?
           a. It encapsulates higher-layer networking protocols in their lower-layer data frames.
           b. It carries many different types of packets, including AppleTalk and IPX.
           c. It supports only asynchronous data transmission.
           d. None of the above.

____ 112. Which is not one of the three most common network operating systems used today?
           a. Banyan VINES             c. NetWare
           b. Windows NT Server d. UNIX

____ 113. The pieces of the network operating system that provide the user interface belong in the ____ layer of the
           OSI Model.
           a. fifth c. seventh
           b. sixth d. None of the above.

____ 114. The ____ layer of the OSI Model allows you to control the transmission of data by taking your requests and
           translating them into instructions.
           a. fifth c. seventh
           b. sixth d. None of the above.

____ 115. Which is not true about network operating systems?
           a. They are hardware- and software-based.
           b. They can run on a number of different hardware platforms.
           c. They can run on a number of different network topologies.
           d. None of the above.

____ 116. A redirector belongs to the ____ layer of the OSI Model.
           a. Application c. Data
           b. Presentation d. Network

____ 117. ____ is the process whereby a network operating system verifies that a client's user name and password are
           valid and allows the client to log onto the network.
           a. encryption c. authorization
           b. verification d. validation

____ 118. ____ is software that translates requests and responses between the client and server.
           a. Interface software c. Translator software
           b. Middleware             d. Thin client

____ 119. Middleware may be used as ____.
           a. a messaging service between clients and servers
           b. a universal query language for databases
           c. a means of coordinating processes between multiple servers that need to work together in servicing
               multiple clients
           d. All of the above.
____ 120. A(n) ____ is a type of software that enables a client to accomplish functions over a network while utilizing
           little of the client workstations' resources and, instead, relying on the server to carry the processing
           burden.
           a. middleware                    c. thin client
           b. remote control software d. application program interface

____ 121. ____ form the basis for resource and account management for every type of network operating system.
           a. Groups      c. Schemas
           b. Domains d. Objects

____ 122. If you create a Ford group within a Car group, the Ford group is said to be ____.
            a. contained c. shared
            b. nested        d. None of the above.




____ 123. The figure above is an example of a directory ____.
           a. tree       c. schema
           b. system d. map

____ 124. A(n) ____ is a representation of a thing or person associated with the network.
           a. schema c. domain
           b. account d. object

____ 125. A(n) ____ is a logical receptacle for holding like objects in an NOS directory.
           a. container c. file system
           b. account       d. workgroup

____ 126. A(n) ____ is a list that organizes resources and associates them with their properties.
            a. file system c. directory
            b. schema      d. tree

____ 127. Disks are divided into ____.
           a. containers c. allocation units
           b. bytes          d. FATs

____ 128. Which is not an extended attribute?
           a. System c. Archive
           b. Hidden d. None of the above.

____ 129. Minimally, which rights do users need to the directories where the application's files are installed?
           a. access         c. execute, read
           b. access, read d. create, access

____ 130. In Windows 2000 Server, a(n) ____ Wizard takes you through the printer creation process step by step.
            a. Add Peripheral c. Add Printer
            b. Add Device     d. Add Object

____ 131. The minimum amount of physical memory required to run a Windows 2000 Server is ____ MB.
           a. 128 c. 32
           b. 256 d. 16

____ 132. In NetWare, UNIX, and Windows 2000 Server, the server actually performs one task at a time, which is
            referred to as ____.
            a. threaded multiprocessing c. linear multitasking
            b. preemptive multitasking d. organized multitasking

____ 133. Which does not support symmetric multiprocessing?
           a. NetWare 5.x           c. Windows 2000 Server
           b. Windows NT Server d. None of the above.

____ 134. Which was the first NOS based entirely on a GUI?
           a. NetWare 5.x            c. Windows 98
           b. Windows NT Server d. None of the above.

____ 135. What list does Microsoft produce to assist customers in determining what kind of Windows 2000 hardware
           to purchase?
           a. Product List                     c. Resource List
           b. Hardware Compatibility List d. Hardware Specifications List

____ 136. NTFS stores file size information in ____ fields.
           a. 16-bit c. 64-bit
           b. 32-bit d. 128-bit

____ 137. Which is not true?
           a.   NTFS partitions can read FAT partitions.
           b.   You can convert a FAT drive into an NTFS drive on a Windows 2000 server.
           c.   You can convert an NTFS drive into a FAT drive on a Windows 2000 server.
           d.   An NTFS partition cannot be read by FAT16, unless you employ a third-party utility.

____ 138. In Active Directory, User account is an example of an object ____.
            a. group c. attribute
            b. class d. workgroup

____ 139. The directory containing information about objects in a domain resides on computers called ____.
           a. member servers         c. domain servers
           b. domain controllers d. object controllers

____ 140. In Active Directory, ____ domains branch out to separate objects.
            a. arm       c. connecting
            b. branch d. child




____ 141. The figure above shows a(n) ____ trust.
           a. two-way transitive        c. mutual
           b. bi-directional transitive d. master

____ 142. trinketmakers.com/legal/msmith is an example of a(n) ____ name.
            a. user principal name    c. distinguished
            b. relative distinguished d. common

____ 143. msmith@trinketmakers.com is an example of a(n) ____ name.
           a. user principal name    c. distinguished
           b. relative distinguished d. common

____ 144. Which is not an option when installing Windows 2000?
           a. Creating a new partition on a non-partitioned portion of a hard disk.
           b. Installing Windows 2000 on two separate partitions.
           c. Installing Windows 2000 on an existing partition.
           d. Removing an existing partition and creating a new one for installation.

____ 145. Which is not a valid Windows 2000 server name?
           a. ChicagoIllinois c. Boston:Chicago
           b. Boston-Chicago d. Boston/Chicago

____ 146. Which is not an option used in controlling the management of a user's password?
           a. User decides when password changes           c. User cannot change password
           b. User must change password at next logon d. Account disabled

____ 147. A(n) ____ group is one that allows its members access to resources across multiple domains and forests.
           a. wide-spread c. universal
           b. global          d. distinguished


                                           Net + Study Guide Ch5-8
                                               Answer Section


1. D
2. D
3. A
4. B
5. D
6. A
7. D
8. C
9. D
10. D
11. D
12. A
13. B
14. B
15. A
16. D
17. C
18. B
19. D
20. D
21. B
22. A
23. C
24. A
25. C
26. C
27. A
28. B
29. B
30. C
31. B
32. C
33. C
34. D
35. A
36. C
37. D
38. A
39. B
40. B
41. A
42. C
43. B
44. D
45. B
46. D
47. A
48. C
49. B
50. D
51. D
52. A
53. A
54. C
55. B
56. B
57. D
58. C
59. C
60. A
61. A
62. B
63. B
64. A
65. A
66. B
67. A
68. D
69. D
70. A
71. D
72. C
73. B
74. C
75. C
76. C
77. B
78. A
79. C
80. C
81. C
82. B
83. A
84. D
85. B
86. A
87. D
88. D
89. A
90. C
91. C
92. B
93. C
94. B
95. A
96. B
97. A
98. A
99. A
100. D
101. B
102. B
103. A
104. A
105. D
106. C
107. A
108. A
109. C
110. A
111. C
112. A
113. D
114. C
115. A
116. B
117. C
118. B
119. D
120. C
121. A
122. A
123. A
124. D
125. A
126. C
127. C
128. D
129. B
130. C
131. B
132. B
133. B
134. B
135. B
136. C
137. C
138. B
139. B
140. D
141. A
142. C
143. A
144. B
145. C
146. A
147. C

				
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