(70-059) Net Essentials

1. You install an Ethernet card on a client computer. The network software initialized properly but the computer can not communicate with others on the network. All other computers can talk to the server. What is most likely the problem?
(a) packet size wrong
(b) I/O port wrong
(c) Tranceiver on net adapter wrong
(d) not enough memory

2. You have a Netware network. Initialization of the client computer works, but client can not talk to the server, other computers on network can. What is most likely the problem?
(a) not enough memory
(b) wrong frame type
(c) I/O port wrong
(d) packet size wrong

3. What is a characteristic of 802.3 10BaseT Ethernet?
(a) RJ11 Connector at both ends
(b) UTP w/RJ45 connector
(c) BNC T-connector
(d) 50 Ohm

4. What type of protocol provides assurance of packet delivery?

5. You want to connect two Ethernet LANs. They use NWLink and NETBEUI. You want to filter data and cut down network traffic. What device do you use?

6. Scenario: You have a large network (750 computers) including NT Server servers, Win95, and WFW clients. You want to implement security on network resources while minimizing administration and downtime. Which method should you implement?
(a) peer-to-peer with user-level security
(b) peer-to-peer with resource-level security (share-level)
(c) centralized user accounts with user-level security
(d) centralized user accounts with resource-level security (share-level)

7. What protocols are routable? (choose all that apply)
(a) NwLink IPX
(b) TCP/IP
(c) NetBEUI
(d) OSI
(e) LAT

8. What examines network packets?
(a) digital volt meter
(b) time-domain reflectometer
(c) protocol analyzer
(d) cable tester

9. You have a network with MS-DOS clients and UNIX clients. Recently, an NT Server is added to the network. Now the UNIX machines can access all shared resources except those on the NT server. Why?
(a) faulty cable
(b) protocol mismatch
(c) server did not initialize

10. 802.x is /collision detect. x=?
(a) .3
(b) .4
(c) .5
(d) .12

11. A T-3 line is the equivalent to how many T-1 lines?
(a) 3
(b) 38
(c) 80
(d) 28

12. Your computer is using COM1, COM2, LPT1, and VGA. The NIC is set for IRQ 3, I/O Base 300. Which one would be conflicting with the NIC?

13. What connectivity device works at or above the transport layer?

14. You need to run UTP Cat5 for 180 meters. What device would you use?

15. You have a 200 node LAN using TCP/IP, and you want to segment into 3 subnets. What device do you use?

16. You have a 200 node Lan using TCP/IP, and NETBEUI. After you segment it into 3 subnets you still want to be able to use both protocols. What device do you use?

17. What do you use to connect an Ethernet Lan to IBM mainframe?

18. You test your RG-58A/U cable and get the following readings:
*cable =0 ohms
*T connector = infinite
*terminator = 50 ohms
What do you need to do?

19. You have 2 new computers on the network. You set both computers up the same way:
*MAC address = 0541SD856912
*IRQ = 5
*I/O Base Address = 300
The computers cannot communicate with the network.
What should you do?

20.You just installed a network adapter card in a PC on IPX (NWLink) network. The network drivers load ok, but the PC can't talk to the server. All the other PC's can talk to the server without any problem. What is the problem?

21. What type of network topology would have every node connected to every other node on the network?
(Diagram)

22. What do you call signal overflow from an adjacent wire?

23. Christina's computer WAS working properly and NOW cannot connect to the server. All other computers can - what's the problem?
(a) wrong transceiver type
(b) network connection at her computer
(c) NIC conflict with the Dynamic Interface Computer Keyboard (DICK)
(d) incorrect frame type

24. What can a network with Windows NT Workstations implement to share/protect files?
(a) share level security
(b) user level security
(c) both

25. What was intended to replace standard phone lines (PSTN)?
(a) SLIP/PPP
(b) Basic Rate ISDN
(c) Primary Rate ISDN
(d) Secondary Rate ISDN

26. Susan uses a modem that is 5 years old. The connection will not provide compression. What communication protocol is she using?

27. A server which performs processing for client computers is called?
(a) application server
(b) file/print server

28. You have a small 5-10 computer network. Which protocol do you use?

29. What purpose does NDIS and ODI serve?

30. Which limitation are NDIS and Novell ODI designed to overcome?
(a) The need to dynamically bind a single protocol to multiple MAC drivers in order to support more than one network operating system.
(b) The need for proprietary network interface drivers for each network operating system and protocol.
(c) Monolithic protocols do not conform to the OSI model.
(d) Monolithic protocols cannot be loaded into the upper memory area.

31. What format should a UNC have?

32. What is the maximum cable segment length of Thinnet?

33. How do you view NetBIOS names on a subnet?
(a) Gateway
(b) WINS server
(c) DHCP
(d) Router

34. WFW network uses what protocol?

35. How do you measure network on a packet level?

36. How do you measure bandwidth?

37. How do you measure traffic over time?

38. How do you identify a failing NIC?

39. How do you connect different protocols? (what device)

40. A computer can't access the Network, but everybody else can. Where is the first place you check for the problem?

41. What is the name for the number sequence needed for handling an IP address?
(a) MAC
(b) Gateway Address
(c) Sock number
(d) Node number
(e) Subnet mask

42. What is a switch also known as?
(a) smart hub
(b) dumb hub
(c) passive hub
(d) stagnant hub

43. What security is used for Peer to Peer?

44. What security is used for Server Based?

45. Which protocol can provide a WAN link with digital voice, data, and video?

46. Which protocol is used for at least 100Mbps?

47. Which protocol measures hops between routers to determine best route?

48. What really throws off an IPX/SPX (NWLink) network?

49. Which supports dynamic IP addressing?

(a) PPP
(b) SLIP

50. Can you tap an FDDI network?

51. Terminator impedence is usually how many ohms?

52. Can Ethernet switch increase ethernet performance?

53. What does connection oriented equal?

54. What is a temporary cheap network topology?

55. How do you increase lagging Disk Access time?

56. What to use as a backbone on a 100+ Mbps network?

57. What extends the distances of network segments?

58. New NIC in PC and now it won't boot. What is the probable cause of the problem?

59. A good peer-to-peer protocol?

60. What is a characteristic of the 802.3 100BaseT fast Ethernet?
(a) BNT T-Connectors
(b) CAT5 UTP
(c) CAT3 UTP
(d) Max cable length of 200 meters

61. What is a characteristic of IEEE 802.3 10base2 thinnet?
(a) Cat3 UPT
(b) 500 meters
(c) BNC T-Connectors
(d) RJ-45

62. What OS allows you to share and use resources on them. (Choose all that apply)
(a) WinNT Server
(b) WfW
(c) Win95
(d) WinNT WS

63. Select all that *only* uses a password on a shared resource:
(a) Winnt Server
(b) WfW
(c) Windows 95
(d) WinNT Wks

64. What WAN link will give you 100 Mbps+ transmission rate?
(a) 52Kbs digital line
(b) ATM
(c) T1
(d) Frame relay
(e) X.25
(f) ISDN Basic

65. What WAN link will give you bandwidth on demand?
(a) T1
(b) X.25
(c) Frame Relay
(d) ATM

66. What WAN link will give you a reliable switched connection?
(a) ATM
(b) X.25
(c) ISDN
(d) Frame Relay

67. Which link is not switchable?
(a) X.25
(b) T1
(c) ATM
(d) Ethernet

68. You need to give a cheap 19.2K baud connection 24 hours/day
(a) Leased line
(b) Dial-up line

69. What would you use to make a 100Mbps network, if your budget is low?

70. You measure a thinnet cable via the T connector. What reading should you get?

71. What reading should you get from an Arcnet terminator?

72. You CANNOT use the same NETBIOS name on: (select all that apply)
(a) Sharename
(b) Workgroup name
(c) Computer name
(d) Domain name

73. ***TRICKY*** Intermittent network problem on Thinnet. Mix of RG58 /U solid core and RG58 A/U stranded cable. After checking cables you have infinite Ohm reading. The T connector also shows infinite and the terminator shows 50 ohm, What do you do?
(a) Replace T connectors
(b) Replace RG58 /U with A/U
(c) Change terminator for 25 Ohms
(d) Replace network cable with RG62

74. You have a Win95 that needs to talk to a Windows 3.1 running netware DOS requestor. What do you need to install on Win95?
(a) NWLink IPX
(b) DLC
(c) XNS
(d) NetBEUI

75. You have a one-story building and a bunch of computers to hook up with no pre-installed cable in the building. You have 1 meter of ceiling space. Which would you install? (No mention of cost)
(a) Coax (plenum)
(b) Fiber
(c) UTP
(d) STP

76. You have a dial up connection and want to use error correction and compression. Which protocol do you use? (choose all that apply):
(a) DLC
(b) XNS
(c) SLIP
(d) PPP

77. What does the 802.3 specification include?
(a) UTP
(b) STP
(c) COAXIAL
(d) FIBEROPTICS

78. You have 5 Windows 95 computers connected together, which protocol would be easiest to implement?
(a) NFS
(b) IPX
(c) DLC

79. What would be the cheapest way to implement fault tolerance that would allow for a maximum downtime of 2 hours?
(a) Raid Level 0
(b) Raid Level 5
(c) Disk Duplexing
(d) Tape Backup

80. Which has error correction? (choose all that apply)
(a) Connection Oriented
(b) Connectionless oriented

81. Multiplexing:
(a) is a technique that allows both baseband and broadband media to support multiple data channels
(b) has three major methods
(c) allows you to use more bandwidth by combining separate signals and transmitting them together
(d) all of the above

82. What dictates the value of a TCP/IP address?
(a) Net Mask
(b) MAC

83. You can ping a server by it's IP-address (numerical), but can't reach it by it's name. Where is the problem?

84. Which layers of the OSI model are managed by a network protocol such as Microsoft NetBEUI? (check all that apply)
(a) Transport
(b) Physical
(c) Network
(d) Presentation

85. What connectivity device is used to connect 10BT to 10Base5?
(a) brouter
(b) router
(c) repeater
(d) bridge

86. What High level of network protocol provides file-sharing on networks that uses NetBIOS? (Hint: all are included with Windows 95)
(a) IPX/SPX
(b) TCP/IP
(c) DLC
(d) SMB
(e) RIP
(f) SLIP
(g) PPP
(h) NetBEUI

87. What is used to connect a NetBEUI network segment to Unix/NFS?
(a) repeater
(b) router
(c) bridge
(d) gateway

88. Setting: Major WAN network with e-mail will be connected to your company. Required result: To create NetBIOS names for the server and clients that would work and stay unique when you connect to the WAN.

-Optional results: To be able to distinguish the server name, computer name and department name through the NetBIOS name. Solution: Use a unique hexadecimal number for each computer.

The solution satisfies:
(a) The required and optional results
(b) The required but none of the optional results
(c) None of the required or the optional results

89. Setting: Major WAN network with e-mail will be connected to your company. Required result: To create NetBIOS names for the server and clients that would work and stay unique when you connect to the WAN.

-Optional results: To be able to distinguish the server name, computer name and department name through the NetBIOS name. olution: Use a name that designates a certain number of characters for the department, another few for the user's name, another few for the computer name, and link the NetBIOS name with the e-mail address.

-The solution satisfies:
(a) The required and optional results
(b) The required but none of the optional results
(c) None of the required or the optional results

90. Scenario: You have a mixed network of Win 95 and Mac workstations. You use brouters between the LANs and you use multiple protocols (IPX, TCP/IP, AppleTalk, NetBEUI).

-Required: You must reduce network traffic (broadcasts) without altering functionality.
-Solution: remove every protocol except IPX and disable bridging on the brouters.
Does this solution satisfy the required results? Yes/No

91. You have recently switched from NetBEUI to TCP/IP and you want to increase the speed. You are using brouters for connections. What should you do?

92. Your network is using multiple protocols (AppleTalk, NetBEUI, TCP/IP, NWLink) for MACS, NetWare, Unix, PCs. There is excessive network traffic and poor performance. How can you reduce network traffic and improve performance? Choose only one protocol for the network. There should be minimal degradation of machine functionality as a result of the protocol change. Choices:
(a) AppleTalk
(b) NetBEUI
(c) TCP/IP
(d) NWLink.

93. There is a new PC which cannot connect to the network. There is no IRQ conflict and network protocols are correct. The frame type of the network card is correct. What will you do first to fix the problem?
(a)replace the network card
(b)use other protocol
(c)replace the driver version
(d)check the base memory address.

94. If an ethernet 10Base5 or 10Base2 has three trunk segments, each separated by a repeater (in the actual exam, you'll see an exhibit). There is a 50-ohm terminator on each end of each trunk segment for a total of six terminators. How many of these terminators should now be grounded?
(a)6
(b)1
(c)3
(d)0

95. You have just installed a new client computer on the network. Everything (including the soundcard) works fine, but the network software does not initialize. What is the problem?
(a) wrong frame type
(b) IRQ conflict
(c) wrong tranceiver setting on NIC

96. Network perfomance reports a large number of broadcast storms, network is using NetBEUI. What is the best thing to do?
(a) use router to segment the network
(b) use bridge to segment the network
(c) use gateway to to segment the network
(d) use router and TCP/IP instead of NetBEUI

97. You have connected a Token Ring Network (4MBit/s) and an Ethernet Network. Copying a 5MB File from Ethernet to Token Ring takes 30 seconds. Copying from Token Ring to Ethernet takes 2Minutes. Why ?
(a) the Token Ring network is slower
(b) the packet size is larger with Ethernet than Token Ring.
(c) the packet size is larger with Token Ring than Ethernet.
(d) TCP windows size

98. Your company has 3 locations: Chicago, Atlanta and Los Angeles. You would like to set up a WAN solution to enable communication between the offices.

--Required results: Transfer speed of at least 1 Mbps steady
--Optional results: Transfer speed of at least 1 Mbps and assurance that communication between the 3 locations will not suffer if one link fails.
--Proposed solution: Install two T1 lines, one between Chicago and Atlanta, one between Atlanta and LA.
--The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) None of the required or the optional results

99. Your company has 3 locations: Chicago, Atlanta and Los Angeles. You would like to set up a WAN solution to enable communication between the offices.
--Required results: same as question 98
--Optional results: same as question 98
--Proposed solution: Install three T1 lines, one between Chicago and Atlanta, one between Atlanta and LA, one between LA and Chicago.
--The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) None of the required or the optional results

100. Scenario: 120 users evenly spread across 3 servers, TCP/IP. Network traffic increases from 30% to 70% in a 10BaseT network.
--Required: Reduce network traffic to 50%.
--Optional: Minimize cost, not affecting administration or functions.
--Solution: Change all Ethernet components to Ethernet switches.
--The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c). The required but none of the optional results
(d). None of the required or the optional results

101. Scenario: same as question #100
--Required: reduce usage by 50%.
--Optional: minimize cost and room for expansion.
--Solution: replace 10baseT cards, cable, hubs with that of 100BaseT.
--The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) None of the required or the optional results

102. Network Scenario: You have 10 NT servers and 200 clients using Win 95 with TCP/IP as the protocol in a 10BaseT network.
--Required: Reduce network utilization (traffic) by 50% on the network.
--Proposed solution: Reduce the default Ethernet frame size from 1,514 bytes to 768 bytes and raise (increase) the default (TCP/IP) window size from 4,000 bytes to 16k.
--The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(C) The required but none of the optional results
(d) None of the required or the optional results

103. Three 50 Ohm-terminators on a coaxial bus (showed a graphic), having network problems. What would be the best (and easiest) way to fix this problem?:
(a) reconfigure to 25 ohms terminators
(b) make cable length meet specs
(c) reconfigure to use 2 terminators
(d) add repeaters

104. Your company has taken a short lease (6 months) of a small building. Your task is to design the network. Part of the lease says not to change any part of the building and money is short. Which network topology would you choose?
(a) Star
(b) Bus
(c) Ethernet
(d) X.25

105. Can password-protected shares be used on NT Workstation in a workgroup environment?

106. On what layer do SMBs reside?
(a) application
(b) presentation
(c) session
(d) transport

107. Three cities connected using RAS for WAN connections, each has eight 28.8 modems on 16-port hubs to all three cities.
--Required: 1Mbps WAN connection.
--Optional: 1Mbps WAN connection and connectivity if a link fails.
--The current connection meets which of the following?
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) None of the required or the optional results

108. What do you use for measuring network performance over long period of time?
(a) Time Domain Reflectometer
(b) Protocol Analyser
(c) Performance Monitor
(d) Digital Volt Meter

109. What is an AUI / DIX used for?
(a) connecting a 10BaseT LAN to FDDI
(b) specifying how a transceiver is attached to an Ethernet device
(c) connecting 10BaseT to 10Base2
(d) testing cable

110. What is CSMA/CD?

111. What is CSMA/CA?

112. The Performance Monitor on an NT network gives the following readings:
*% Processor: 8
*Pages Fault / Sec: 2
*Disk %: 25
What would you implement to improve network performance? :
(a) add more ram
(b) increase processor speed
(c) disk striping with parity
(d) segment the network

113. You come in Monday morning and find that all computers on one segment of the network are having problems communicating. You suspect that it is caused by a broadcast storm. You have determined that it is not a hardware problem. What is your first action to resolve the problem?
(a) disconnect all routers
(b) Power down and restart the server
(c) Use a TDR to analyze the problem
(d) Use a Network Analyzer to determine the source of the storm

114. O-X---------------X-----------------X---------------X-O
*+ +
*O=50 ohm Terminator
*+=Ground
*X=Computer

115.The company is using 10Base2, RG-58 A/U cabling for a bus topology in one of their classrooms. The computers are receiving garbage information. They have hired you to fix the problem. What would you do?
(a) Replace all the cable with RG-58 /U
(b) Ground the terminators properly
(c) Change terminators to 25 ohms
(d) Add a repeater to boost the signal

115. You have a network with the data on the servers, in a separate room, NTFS and a lot of other great things.
-Required: You have to ensure hardware reliability with 2 hours downtime acceptable, assure data protection, fault tolerance.
-Optional: Protection against virus on network shares; logged tracking of network resource access (data access tracking); protection against password guessing programs.
-Solution: Daily backups, UPS, disk striping with parity, 40 day password change policy, server locked in closet, etc., granting user access, virus scans plus more stuff but not auditing. The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) Neither the required nor the optional results

116. You have a network with the data on the servers, in a separate room, NTFS and a lot of other great things. 2 hours downtime acceptable.
-Required: You have to assure data protection, fault tolerance.
-Optional: Protection against virus, data access tracking.
-Solution: Doing backups, granting user access, virus scans and RAID 1 plus more stuff and auditing.
The solution satisfies:
(a) The required and both optional results
(b) The required and only one of the optional results
(c) The required but none of the optional results
(d) Neither the required nor the optional results