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Ethernet Concepts Exam Answers - Document preview page 1

Ethernet Concepts Exam Answers - Page 1

Document preview content for Ethernet Concepts Exam Answers

Ethernet Concepts Exam Answers

Comprehensive CCNA 1 v7 Modules 4–7 exam guide focused on Ethernet concepts, including switching methods, MAC addressing, physical media, and OSI layers—perfect for networking students and certification prep.

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Ethernet Concepts Exam Answers - Page 1 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4 - 7 : Ethernet Concepts Exam AnswersIT Questions BankIOS Command ListEbooksIP Calculators»DonationsSearch the siteAD® M117Exam Answers.netCCNA »Security »CyberOps »HomeIT Questions BankIOS Command ListCCNA »CCNA Security v2.0»Cybersecurity »Networking EssentialsIP Subnet Calculators»DonationContacthttps://itcxamanswcrs.net/ccna-l -v7-modulcs-4-7-cthcrnct-conccpts-cxam-answcrs.html1/50
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Ethernet Concepts Exam Answers - Page 2 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam AnswersCCNA 1 v7 Modules 4 - 7: EthernetCCNA v7.0 Exam AnswersConcepts Exam AnswersDec 18, 2019|Last Updated: Dec 20, 2022|CCNA v7 Course #1|61 Comments/ShareTweetSharePin itSystem Test ExamModules 1-3: BasicNetwork Connectivity andCommunications ExamAnswersModules 4-7: EthernetConcepts Exam AnswersModules 8-10:Communicating BetweenNetworks Exam AnswersModules 11 - 13: IPAddressing Exam AnswersModules 14 - 15: NetworkApplication CommunicationsExam AnswersModules 16 - 17: Buildingand Securing a SmallNetwork Exam Answers[PT Skills]Practice PTSkills Assessment (PTSA)[Final Skills]ITN FinalSkills Exam (PTSA)TTNv7 Practice Final ExamCCNA 1 v7 FINAL ExamAnswersHow to find:Press"Ctrl + F"in the browser and fill inwhatever wording is in the question to find thatquestion/answer. If the question is not here, find it inQuestions BankNOTE: If you have the new question on this test, pleasecomment Question and Multiple-Choice list in formbelow this article. We will update answers for you in theshortest time. Thank you! We truly value yourcontribution to the website.Empower Uki jiuian Chl!di«nri FutureHelp war-impactedkids access education7.00)-im( Vci jonJo:Introduction to NetworksModules 4 - 7 : Etherneticepts1. What is the purpose of the OSI•controlling access to media*transmitting bits across the local media•performing error detection on received frameshttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html2/50
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Ethernet Concepts Exam Answers - Page 3 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers•exchanging frames between nodes over physical networkmedia2. Why are two strands of fiber used for a single fiber opticconnection?•The two strands allow the data to travel for longer distanceswithout degrading.•They prevent crosstalk from causing interference on theconnection.’They increase the speed at which the data can travel.•They allow for full-duplex connectivity.3. Which characteristic describes crosstalk?•the distortion of the network signal from fluorescent lighting•the distortion of the transmitted messages from signalscarried in adjacent wires•the weakening of the network signal over long cable lengths•the loss of wireless signal over excessive distance from theaccess point4. Which procedure is used to reduce the effect of crosstalkin copper cables?DONATETODAYMriyaAidxa n"1AYOUR CONNECTIONryflW I T H IT COMMUNITY_________Join IT Cluster in the Cloudrequiring proper grounding ctwisting opposing circuit wirwrapping the bundle of wiresbiddingRelated Posts4.7.4 Module Quiz - Physical Layer(Answers)5.3.2 Module Quiz - Number Systems(Answers)12.5.8 Check Your Understanding -Dynamic Addressing for IPv6 GUAsAnswersCCNA 1 v7.0 Curriculum: Module 16 -Network Security Fundamentals7.2.7 Lab - View Network DeviceMAC Addresses (Answers)■designing a cable infrastructure to avoid crosstalkinterference*avoiding sharp bends during installationhttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html3/50
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Ethernet Concepts Exam Answers - Page 4 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers11.6.6 Lab - Calculate IPv4 Subnets(Answers)2.9.2 Lab - Basic Switch and EndDevice Configuration (Answers)7.1.5 Check Your Understanding -Ethernet Switching Answers12.9.4 Module Quiz - IPv6 Addressing(Answers)5.1.4 Check Your Understanding -Binary Number System Answers5. Match the situation with the appropriate use of networkmedia.ADI6. A network administrator is measuring the transfer of bitsacross the company backbone for a mission critical financialapplication. The administrator notices that the networkthroughput appears lower than the bandwidth expected.Which three factors could influence the differences inthroughput? (Choose three.)*the amount of traffic that is currently crossing thenetwork’the sophistication of the encapsulation method applied to thedata•the type of traffic that is crossing the network•the latency that is created by the number of networkdevices that the data is crossing■the bandwidth of the WAN connection to the Internet*the reliability of the gigabit Ethernet infrastructure of thebackboneRecent Commentshttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html4/50
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Ethernet Concepts Exam Answers - Page 5 preview image5/18/24, 5:27 AMCCNA I v7 Modules 4-7: Ethernet Concepts Exam AnswersMiguel on Network Security(Versionl .0) - Final Exam AnswersFullviva on CCNA 1 v7 Modules 11-13:IP Addressing Exam Answers Fullxeno onEndpoint Security: MyKnowledge Check AnswersDanCooper onENSA (Version 7.00)Final PT Skills Assessment Exam(PTSA) AnswersAnandaraj onCCNA 1 v7.0 FinalExam Answers Full - Introduction toNetworks41Df o u n d a t i o nDeterminedand effectiveSupport Ukrainian volunteersin making a bigger impactExplanation:Throughput usually does not match thespecified bandwidth of physical links due to multiple factors.These factors include, the amount of traffic, type of traffic,and latency created by the network devices the data has tocross.7. What are two characteristics of fiber-optic cable? (Choosetwo.)*It is not affected by EMI or RFI.■Each pair of cables is wrapped in metallic foil.*It combines the technique of cancellation, shielding, andtwisting to protect data.*It typically contains 4 pairs of fiber-optic wires.■It is more expensive than UTP cabling is.Explanation:Fiber-optic cabling supports higher bandwidththan UTP for longer distances. Fiber is immune to EMI andRFI, but costs more, requires more skill to install, andrequires more safety precaution8. What is a primaiy role of the Pdata on the network?ansmitting•create the signals that represent the bits in each frameon to the mediahttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html5/50
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Ethernet Concepts Exam Answers - Page 6 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers*provide physical addressing to the devices■determine the path packets take through the network*control data access to the mediaExplanation:The OSI physical layer provides the means totransport the bits that make up a frame across the networkmedia. This layer accepts a complete frame from the datalink layer and encodes it as a series of signals that aretransmitted to the local media.9. With the use of unshielded twisted-pair copper wire in anetwork, what causes crosstalk within the cable pairs?Invest In rtsilkinte JiowlDONATETODAYMriyaAid.ca n•the magnetic field around the adjacent pairs of wire•the use of braided wire to shield the adjacent wire pairs•the reflection of the electrical wave back from the far end ofthe cable’the collision caused by two nodes trying to use the mediasimultaneouslyExplanation:Crosstalk is a 0that occurs when signal transmwith another wire. When curreiterferencee interferesa wire amagnetic field is produced. Thinterface the signal earned in the adjacent wire.etic field will10. Refer to the graphic. What type of cabling is shown?https://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html6/50
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Ethernet Concepts Exam Answers - Page 7 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers•STP•UTP•coax•fiberExplanation:Network cabling include different types ofcables:•UTP cable consists of four pairs of color-coded wiresthat have been twisted together and then encased in aflexible plastic sheath.•STP cable uses four pairs of wires, each wrapped in afoil shield, which are then wrapped in an overall metallicbraid or foil.*Coaxial cable uses a copper conductor and a layer offlexible plastic insulation surrounds the copperconductor.* Fiber cable is a flexible, extremely thin, transparentstrand of glass surrounded by plastic insulation.11. In addition to the cable length, what two factors couldinterfere with the communication carried over UTP cables?(Choose two.)*crosstalkbandwidthsize of the networksignal modulation techniqueelectromagnetic interferenceExplanation:Copper media is widely used in networkcommunications. However, copper media is limited bydistance and signal interference. Data is transmitted onhttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html7/50
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Ethernet Concepts Exam Answers - Page 8 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answerscopper cables as electrical pulses. The electrical pulses aresusceptible to interference from two sources:* Electromagnetic interference (EMI) or radiofrequency interference (RFI)- EMI and RFI signalscan distort and corrupt the data signals being carried bycopper media.■Crosstalk- Crosstalk is a disturbance caused by theelectric or magnetic fields of a signal on one wireinterfering with the signal in an adjacent wire.12. Refer to the graphic. What type of cabling is shown?*STP■UTP■coax•fiber13. Which two devices commonly affect wireless networks?(Choose two.)*Blu-ray playershttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html8/50
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Ethernet Concepts Exam Answers - Page 9 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers•home theaters■cordless phones•microwaves•incandescent light bulbs•external hard drivesExplanation:Radio Frequency Interference (RFI) is theinterference that is caused by radio transmitters and otherdevices that are transmitting in the same frequency.14. Which two statements describe the services provided bythe data link layer? (Choose two.)It defines the end-to-end delivery addressing scheme.It maintains the path between the source and destinationdevices during the data transmission.It manages the access of frames to the network media.It provides reliable delivery through link establishment andflow control.It ensures that application data will be transmitted accordingto the prioritization.It packages various Layer 3 PDUs into a frame formatthat is compatible with the network interface.Explanation:The data link layer is divided into two sublayers, namely Logical Link Control (LLC) and Media AccessControl (MAC). LLC forms a frame from the network layerPDU into a format that conforms to the requirements of thenetwork interface and media. A network layer PDU might befor IPv4 or IPv6. The MAC sub layer defines the mediaaccess processes performed by the hardware. It managesthe frame access to the network media according to thephysical signaling requirementswireless, etc.)iber optic,15. What is the function of the CFCS field of a frame?und in the'to verify the integrity of the received frame"to verify the physical address in the framehttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html9/50
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Ethernet Concepts Exam Answers - Page 10 preview image5/18/24, 5:27 AMCCNA I v7 Modules 4-7: Ethernet Concepts Exam Answers*to verify the logical address in the frame■to compute the checksum header for the data field in theframeExplanation:The CRC value in the FCS field of thereceived frame is compared to the computed CRC value ofthat frame, in order to verify the integrity of the frame. If thetwo values do not match, then the frame is discarded.16. What is contained in the trailer of a data-link frame?*logical address*physical address■data■error detectionExplanation:The trailer in a data-link frame contains errordetection information that is pertinent to the frame includedin the FCS field. The header contains control information,such as the addressing, while the area that is indicated bythe word "data" includes the data, transport layer PDU, andthe IP header.17. Which statement describes a characteristic of the frameheader fields of the data link layer?rn p o w e rU k r a i n i a n C h i l d r e n ' s F u t u r eHelpW a r - I m p a c t e d KidsAccess Educa•8&UKRAINE=- FRIENDS61They all include the flow conEthernet frame header fieldsconnection fields.am Laysource andThey vary depending on protdestination addresses.They include information on user applications.https://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html10/50
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Ethernet Concepts Exam Answers - Page 11 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam AnswersExplanation:All data link layer protocols encapsulate theLayer 3 PDU within the data field of the frame. However, thestructure of the frame and the fields that are contained in theheader vary according to the protocol. Different data linklayer protocols may use different fields, like priority/quality ofservice, logical connection control, physical link control, flowcontrol, and congestion control.18. A network team is comparing physical WAN topologiesfor connecting remote sites to a headquarters building.Which topology provides high availability and connectssome, but not all, remote sites?•mesh•partial mesh•hub and spoke•point-to-pointExplanation:Partial mesh topologies provide highavailability by interconnecting multiple remote sites, but donot require a connection between all remote sites. A meshtopology requires point-to-point links with every systembeing connected to every other system. A point-to-pointtopology is where each device is connected to one otherdevice. A hub and spoke uses a central device in a startopology that connects to other point-to-point devices.19. Which two fields or features does Ethernet examine todetermine if a received frame is passed to the data link layeror discarded by the NIC? (Choose two.)*auto-MDIX*CEF*Frame Check Sequence■minimum frame size’source MAC addressExplanation:An Ethernet frame is not processed and isdiscarded if it is smaller than the minimum (64 bytes) or if thehttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html11/50
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Ethernet Concepts Exam Answers - Page 12 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answerscalculated frame check sequence (FCS) value does notmatch the received FCS value. Auto-MDIX (automaticmedium-dependent interface crossover) is Layer 1technology that detects cable straight-through or crossovertypes. The source MAC address is not used to determinehow the frame is received. CEF (Cisco Express Forwarding)is a technology used to expedite Layer 3 switching.20. Which media communication type does not require mediaarbitration in the data link layer?’deterministic*half-duplex*full-duplex*controlled accessExplanation:Half-duplex communication occurs when bothdevices can both transmit and receive on the medium butcannot do so simultaneously. Full-duplex communicationoccurs when both devices can transmit and receive on themedium at the same time and therefore does not requiremedia arbitration. Half-duplex communication is typicallycontention-based, whereas controlled (deterministic) accessis applied in technologies where devices take turns toaccess the medium.21. Which statement describes an extended star topology?ADa IDfd fl <i 0 t i o nSupport Ukrain making a bigger impociDeterand ehttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html12/50
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Ethernet Concepts Exam Answers - Page 13 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers*End devices connect to a central intermediate device,which in turn connects to other central intermediatedevices.*End devices are connected together by a bus and each busconnects to a central intermediate device.■Each end system is connected to its respective neighbor viaan intermediate device.*All end and intermediate devices are connected in a chain toeach other.Explanation:In an extended star topology, centralintermediate devices interconnect other star topologies.22. What is a characteristic of the LLC sublayer?•It provides the logical addressing required that identifies thedevice.•It provides delimitation of data according to the physicalsignaling requirements of the medium.•It places information in the frame allowing multiple Layer3 protocols to use the same network interface andmedia.■It defines software processes that provide services to thephysical layer.Explanation:The Logical Link Control (LLC) defines thesoftware processes that provide services to the networklayer protocols. The information is placed by LLC in theframe and identifies which network layer protocol is beingused for the frame. This information allows multiple Layer 3protocols, such as IPv4 and IPv6, to utilize the same networkinterface and media.6123. What are three ways that medinetworking? (Choose three.)is used inEthernet utilizes CSMA/CD.•Media access control provides placement of data framesonto the media.■Contention-based access is also known as deterministic.https://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html13/50
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Ethernet Concepts Exam Answers - Page 14 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers*802.11 utilizes CSMA/CD.■Data link layer protocols define the rules for access todifferent media.*Networks with controlled access have reduced performancedue to data collisions.Explanation:Wired Ethernet networks use CSMA/CD formedia access control. IEEE 802.11 wireless networks useCSMA/CA, a similar method. Media access control definesthe way data frames get placed on the media. The controlledaccess method is deterministic, not a contention-basedaccess to networks. Because each device has its own timeto use the medium, controlled access networks such aslegacy Token Ring do not have collisions.24. During the encapsulation process, what occurs at thedata link layer for a PC connected to an Ethernet network?•An IP address is added.•The logical address is added.•The physical address is added.•The process port number is added.Explanation:The Ethernet frame includes the source anddestination physical address. The trailer includes a CRCvalue in the Frame Check Sequence field to allow thereceiving device to determine if the frame has been changed(has errors) during the transmission.25. What three items are contained in an Ethernet header andtrailer? (Choose three.)*source IP addresshttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html14/50
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Ethernet Concepts Exam Answers - Page 15 preview image5/18/24, 5:27 AMCCNA 1 v7 Modules 4-7: Ethernet Concepts Exam Answers*source MAC address■destination IP address’destination MAC address*error-checking informationExplanation:Layer 2 headers contain the following:* Frame start and stop indicator flags at the beginningand end of a frame* Addressing - for Ethernet networks this part of theheader contains source and destination MAC addresses■Type field to indicate what Layer 3 protocol is beingused* Error detection to determine if the frame arrived withouterror26. What type of communication rule would best describeCSMA/CD?•access method*flow control*message encapsulation•message encodingExplanation:Carrier sense multiple access collisiondetection (CSMA/CD) is the access method used withEthernet. The access method rule of communication dictateshow a network device is able to place a signal on the carrier.CSMA/CD dictates those rules on an Ethernet network andCSMA/CA dictates those rules on an 802.11 wireless LAN.27. Which three basic parts are common to all frame typessupported by the data link layer? (’header•type field•MTU size’data■trailer*CRC valuehttps://itexamanswers.net/ccna-l-v7-modules-4-7-ethernet-concepts-exam-answers.html15/50
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