1 How is a MAC address represented? four groups of eight binary digits separated by a decimal point four Base10 digits separated by a decimal point six hexadecimal digits X twelve hexadecimal digits twenty-four Base10 digits 2 Which of the following are specified by IEEE standards as sublayers of the OSI data link layer? (Choose two.) X Logical Link Control Logical Layer Control X Media Access Control Logical Link Communication Media Access Communication Physical Access Communication 3 Which of the following are features of a Token Ring network? (Choose two.) X collisionless environment non-deterministic X deterministic uses CSMA/CD prone to collisions 4 Which ports on a hub forward traffic? only to the port where the destination host resides to the ports in all other collision domains X all ports except the originating port all ports 5 Which characteristics of Ethernet contribute to its widespread use? (Choose three.) X ease of maintenance collision free technology X scalability X low cost of installation compatibility with 802.5 standard collision avoidance capabilities 6 Ethernet standard specifications limit network service interruption. Select the items that describe the standards. (Choose three.) minimum segment length X maximum segment length minimum number of stations per segment X maximum number of stations per segment minimum number of repeaters between segments X maximum number of repeaters between segments 7 What is the name of the Layer 2 Protocol Data Unit(PDU)? packet X frame bit data segment 8 What is the length of a MAC address? 8 bits 8 bytes 24 bits 24 bytes X 48 bits 48 bytes 9 Which of the following are the functions of CSMA/CD? (Choose three.) X transmitting and receiving data packets releasing a token when the network is clear X detecting errors within data packets or on the network passing a token to each station on the network X decoding data packets and checking them for valid addresses before passing them to the upper layers of the OSI model 10 In which two layers of the OSI model does Ethernet function? (Choose two.) application session transport network X data link X physical 11 Which statements below are true about Ethernet? (Choose three.) addresses the needs of Layer 2 and Layer 3 of the OSI model first released as a Xerox proprietary standard X essentially the same as 802.3 standards X bandwidth can be increased without changing the underlying technology essentially the same as 802.2 standards X original idea developed at the University of Hawaii 12 Which options below are field names of a generic frame? (Choose three.) IP header voltage reference X data description X length X frame check sequence 13 What does the word "Base" indicate in 10Base2? The number standard used. X Baseband signaling is used. Only a portion of the transmission medium is used. Broadband signaling is used. 14 What happens on an Ethernet network after a collision occurs? (Choose three.) X A backoff algorithm is invoked and transmission is stopped. Devices involved in the collision have a random period of time for priority retransmission of the damaged packet. The devices involved in the collision release a token indicating the time each station may begin retransmitting. X The devices involved in the collision do not have priority to transmit data. X The devices with data to transmit return to a listen-before-transmit mode. Transmit work will restart with the reissuance of all data. 15 After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data? the device involved in the collision with the lowest MAC address the device involved in the collision with the lowest IP address X any device in the collision domain whose backoff timer expires first those that began transmitting at the same time 16 Where does the MAC address originate? DHCP server database configured by the administrator X burned into ROM on the NIC card network configuration on the computer included in the creation of the processor chip 17 Which features describe the concept of Carrier Sense Multiple Access with Collision Detection? (Choose two.) collisionless environment X non-deterministic deterministic X uses first-come, first-served approach uses a token to transmit data 18 Which of the following is included in the frame address field? (Choose two.) source IP address destination IP address destination subnet mask X source MAC address X destination MAC address 1 Which media types can be used in an implementation of a 10BASE-T network? (Choose three.) Category 5 UTP * Category 5e UTP * Category 3 UTP * coaxial cable multi-mode fiber single mode fiber 2 Why would an organization choose to implement twisted pair cabling over coaxial cabling? (Choose two.) cheaper * easier to install * proprietary used in most older networks easy to make wiring errors no limitations to the length of each segment 3 What is the maximum distance that 10BASE-T will transmit data before signal attenuation affects the data delivery? 100 meters * 185 meters 300 meters 500 meters 4 Which of the following describe the Gigabit Ethernet bit patterns created at the physical layer? pulses triads frames symbols * icons 5 To make sure timing limitations are not violated when implementing a 10 Mbps Ethernet network involving hubs or repeaters, a technician should adhere to which rule? the 4-5-3 rule the 6-4-2 rule the 3-4-5 rule the 5-4-3 rule * 6 Which of the following has limited the bandwidth of fiber based Ethernet? (Choose three.) emitter technology * absolute fiber light-carrying capacities theoretical limits of fiber capacity fiber manufacturing processes * detector technology * angles and curves in the fiber run 7 Which of the following Ethernet technologies share the same timing parameters? (Choose three.) 10BASE2 * 10BASE5 * 10BASE-T * 100BASE-TX 100BASE-FX 100BASE-RX 8 Which of the following best describes how the Gigabit Ethernet, Media Access Control method views the link? ring shared bus point-to-point * star extended star 9 Which of the following are common to all versions of Gigabit Ethernet? (Choose three.) packet size frame format * medium timing * transmission * wavelength 10 100BASE-TX operates in which transmission modes? (Choose two.) reverse simplex full-duplex * half-duplex * full-biplex single phase biplex 11 Which class of repeater changes between one Ethernet implementation and another? Class I * Class II Class III Class IV Class V 12 Which of the following common networking problems is eliminated when an Ethernet network uses separate transmit and receive wire pairs and a switched topology? collisions on the physical bus * single segment distance limitations the maximum bandwidth available on CAT 3 wiring Multi-port bridge replication errors CSCD/MA maximum repeater rules 13 Which of the following are Fast Ethernet technologies? (Choose two.) 100BASE-5 100BASE2 1000BASE-F 100BASE-FX * 100BASE-TX * 14 How does 1000BASE-T use the UTP wire pairs to accomplish transmission? two pairs are used to transmit and two pairs are used to receive one pair is used to transmit, one pair is used to receive, one pair is used for clocking, and one pair is used for error correction all four pairs are used in parallel by both hosts to transmit and receive simultaneously * two pairs of wires are used as in 10BASE-T and 100BASE-TX 15 Which of the following Ethernet technologies are considered legacy Ethernet? (Choose three.) 10BASE2 * 10BASE5 * 10BASE-T * 100BASE-T 100BASE-FX 100BASE-TX 16 What is the most important aspect to consider when designing a 10BASE-T architecture? specifying the correct category of cable in the design minimizing the number of switches in the design maximizing the use of hubs minimizing the delay between distant stations * 17 For a network manager planning the installation of a new network, which of the following will be needed to implement a typical 10BASE-T network installation? (Choose three.) RJ-11 BNC connectors RJ-48 patch cables RJ-45 connectors * Category 5 UTP cables * hubs or switches *