Ответы на CCNA1

CCNA 1 version 3.1 :Module 2-11 100%(Definitely)answer + Final Practise 100%Date:Mid February 2006.Still Fresh.Answer is the one with colour or *Chapter 1 is not 100%.Only 94%Assessment 11Several computers in the company require new NICs. A technician has located agood price on the Internet for the purchase of these NICs. Before these NICs arepurchased and installed, what details must be verified? (Choose three.)the MAC address on the NICthe size of the RAM on the NICthe bandwidth supported by the NICthe type of media supported by the NICthe type of network architecture supported by the NIC2What is the hexadecimal equivalent for the binary number 00100101?1520253037403Which phrases describe a byte? (Choose two.)a single binary digit+5 volts of electricitythe value range 0 to 127a grouping of eight binary digitsa single addressable data storage location4Which specialized equipment is used to make a physical connection from a PC to anetwork?routerRAMCD ROMnetwork interface card5What is the binary equivalent for the decimal number 248?111000001111000011110100111110006Convert the binary number 01011011 into its hexadecimal equivalent.

Select thecorrect answer from the list below.5A5B5C5D6B7A7What is the binary equivalent for decimal number 149?1001011110010101 100110011001011110101011101011018In an 8 bit binary number, what is the total number of combinations of the eightbits?12825425525651210249Which device connects a computer with a telephone line by providing modulation anddemodulation of incoming and outgoing data?NICCSU/DSUroutermodemtelco switch10What is the binary equivalent for the decimal number 162?10101010101000101010010010101101101100001010110011Which of the following are popular web browsers? (Choose two.)AcrobatInternet ExplorerMacromedia FlashNetscape NavigatorQuicktimeWorld Wide Web12Convert the Base 10 number 116 into its eight bit binary equivalent. Choose thecorrect answer from the following list:01111010011100100111010001110110011101110101011013What is the hexadecimal equivalent for the binary number 10001110?2267142AE8E14Represented as a decimal number, what is the result of the logical ANDing of binarynumbers 00100011 and 11111100?3323522025515Convert the decimal number 231 into its binary equivalent.

Select the correct answerfrom the list below.11110010110110111111011011100111111001011110111016What are three conditions that would require a network administrator to install a newNIC? (Choose three.)whenever a NIC is damagedwhen there is a need to provide a secondary or backup NICwhen there is a change from copper media to wirelesswhenever operating system security patches are appliedwhenever the PC has been moved to a different locationChapter 2 (100%)1Which two features apply to WAN connections? (Choose two.)operate using serial interfacesmake network connection using a hublimited to operation over small geographic areastypically operate under local administrative controlprovide lower bandwidth services compared to LANs2What is the term used to describe the transport layer protocol data unit?bitspacketssegmentsframesdata streams3Which layer of the OSI model provides connectivity and path selection between twoend systems where routing occurs?physical layerdata link layernetwork layertransport layer4Which of the following are data link layer encapsulation details? (Choose two.)A header and trailer are added.Data is converted into packets.Packets are packaged into frames.Frames are divided into segments.Packets are changed into bits for Internet travel.5Which of the following are ways that bandwidth is commonly measured? (Choosethree.)GHzpskbpsMbpsNbpsMHzpsGbps6What makes it easier for different networking vendors to design software andhardware that will interoperate?OSI modelproprietary designsIP addressing schemestandard logical topologiesstandard physical topologies7Refer to the exhibit.

Which column shows the correct sequence of OSI model layers?ABCD8The central hub has malfunctioned in the network. As a result, the entire network isdown. Which type of physical network topology is implemented?busstarringmesh9What is one advantage of defining network communication by the seven layers of theOSI model?It increases the bandwidth of a network.It makes networking easier to learn and understand.It eliminates many protocol restrictions.It increases the throughput of a network.It reduces the need for testing network connectivity.10Refer to the following list. Choose the correct order of data encapsulation when adevice sends information.1. segments2.

bits3. packets4. data5. frames1-3-5-4-22-1-3-5-42-4-3-5-14-3-1-2-54-1-3-5-23-5-1-2-411Which three features apply to LAN connections? (Choose three.)operate using serial interfacesmake network connection using a hublimited to operation over small geographic areasprovide part-time connectivity to remote servicestypically operate under local administrative controlprovide lower bandwidth services compared to WANs12Which term describes the process of adding headers to data as it moves down OSIlayers?divisionencodingseparationsegmentationencapsulation13Which of the following are factors that determine throughput? (Choose two.)types of passwords used on serverstype of Layer 3 protocol usednetwork topologywidth of the network cablenumber of users on the network14Which layer of the OSI model provides network services to processes in electronicmail and file transfer programs?data linktransportnetworkapplication15Which of the following are layers of the TCP/IP model? (Choose three.)ApplicationPhysicalInternetNetwork AccessPresentation16Refer to the exhibit.

Identify the devices labeled A, B, C, and D in the networkphysical documentation.A=bridge, B=switch, C=router, D=hubA=bridge, B=hub, C=router, D=switchA=bridge, B=router, C=hub, D=switchA=hub, B=bridge, C=router, D=switch17Which best describes the function of the physical layer?Defines the electrical and functional specifications for the link between endsystems.Provides reliable transit of data across a physical link.Provides connectivity and path selection between two end systems.Concerned with physical addressing, network topology and media access.18A switch has failed in the network.

As a result, only one segment of the network isdown. Which type of physical network topology is implemented?busringstarextended star19In your opinion (this has no bearing on your grade), please indicate your interest inthis course:20In your opinion (this has no bearing on your grade), please indicate how enthusiasticyou are about the content of this course and the things you’re learning (or havelearned):21In your opinion (this has no bearing on your grade), please rate your motivation todo well in this course:Chapter 3 with 100%1What are two advantages of using UTP cable in a networking environment? (Choosetwo.)is stiffer than STP*is less expensive than fiber*is easier to install than coaxialprovides longer distances than coaxial providesis less susceptible to outside noise sources than fiber is2What are two advantages of using fiber-optic cabling instead of UTP? (Choose two.)lower costeaser to install*allows longer distances*less effected by external signalseasier to terminate the cable ends3What is the difference between a wireless NIC and an Ethernet NIC?The Ethernet NIC operates at 100 Mbps, whereas a wireless NIC operates at 10Mbps.The Ethernet NIC uses a PCI expansion slot, and a wireless NIC cannot use anexpansion slot.The wireless NIC uses CSMA/CA, whereas a Ethernet NIC uses token passing as anaccess method.*The wireless NIC associates to an access point, and an Ethernet NIC attaches to ahub or switch using a cable.The Ethernet NIC attaches to a hub or a switch using only fiber cabling, and awireless NIC attaches to a wireless antenna using air as a network medium.4Refer to the exhibit.

The JacksCo is a small start-up company that took over an officespace from another small company that closed. The older company left a room ofnetwork equipment behind. An inventory list is shown. As the newly hired networktechnician, you have been asked to determine which components in the storeroomwould be best to use to install a small wireless LAN that currently only needs theemployees to be able to share data. Note that the wireless LAN also needs toconnect to an existing wired LAN.

Which components should you choose?access point and wireless NICs*wireless NICs, access point, straight-through cables, and a switchhub, wireless NICs, two wireless bridges, crossover cables, and an access pointwireless NICs, Ethernet NICs, a switch, an external modem, two wireless bridgesEthernet NICs, wireless NICs, switch, hub, two wireless bridges, straight-throughcables, crossover cables, and a router5A company is converting a cabled LAN to a wireless Ethernet LAN. What must bechanged on every host on the network?No changes are required.Each host will require a new IP address.*Each host will require an appropriate NIC or adapter.Each host will require that the operating system be upgraded.6Refer to the exhibit. Which answer correctly identifies the pinout of the UTP cableslabeled Cable A, Cable B, and Cable C?A=straight, B=rollover, C=crossoverA=rollover, B=crossover, C=straightA=crossover, B=straight, C=straight*A=crossover, B=straight, C=rolloverA=straight, B=crossover, C=rolloverA=rollover, B=straight, C=crossover7What factors should be considered when selecting the appropriate cable forconnecting a PC to a network? (Choose two.)type of system busmotherboard model*distance of cable run*speed of transmissioncomputer manufacturer8Select the characteristics specified by 10BaseT.

(Choose three.)*twisted pair cableT style connectors*baseband transmission10 gigabits per second data rate*10 megabits per second data ratedecimal encoded data transmission9When is a straight-through cable used in a network?when configuring a routerwhen connecting a host to a host*when connecting a switch to a routerwhen connecting one switch to another switch10What type of cable is used to make an Ethernet connection between a host and aLAN switch?consolerollovercrossover*straight-through11Which of the following are used for data communication signals? (Choose three.)*light patterns*electrical voltagescontrolled air pulsesmixed media impulsesmagnetized fluid wave*modulated electromagnetic waves12What does UTP cable rely on to reduce signal degradation caused by EMI and RFI?shieldingmagnetism*cancellationinsulationproperly grounded connectionsRJ-45 connectors13Refer to the exhibit.

What type of cable connects the two routers together withoutany intermediary device?consolerollover*crossoverstraight-through14Which Ethernet implementation requires the signal on the media to be boosted at amaximum distance of 100 meters?10BASE210BASE5*100BASE-T100BASE-FX1000BASE-CX15Which cable connectors are used to connect a cable from a router's console port to aPC? (Choose two.)RJ-11RJ-12*RJ-45DB-8*DB-9DB-10Chapter 4 with 100%1A company needs to extend the LAN to six separate buildings. To limit the amount ofsignal attenuation on the LAN media, what type of media would be the best to usebetween the buildings?air (wireless)coaxial cable*fibershielded twisted pairunshielded twisted pair2Which of the following are detected by the wire map test? (Choose three.)near-end crosstalk (NEXT)*openspropagation delayreturn loss*reversed-pair faults*short circuits3What is a cause of crosstalk in UTP cable?cable pairs that are shortedcable pairs crossed during terminationcabling runs installed in separate conduit*cable pairs that are untwisted because of poor termination of the cable4A small company is experiencing difficulties on its LAN.