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90 Cards in this Set
- Front
- Back
Where does a hub send data?
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To all the systems connected to the hub
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What uniquely identifies every NIC?
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Media Access Control Address
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What Windows utility do you use to find the MAC address for a system?
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IPCONFIG
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A MAC address is know as a(n) _________ address.
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Physical
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A NIC sends data in discrete chunks called ____________________.
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Frames
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Which MAC address begins a frame?
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Receiving system
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A frame ends with a special bit called the cyclic redundancy check (CRC). What does the CRC do?
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Verifies that the data arrived correctly
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Which of the following is an example of a MAC address?
A) 0 – 255 B) 00-50-56-A3-04-OC C) SBY3M7 D) 192.168.4.13 |
B) 00-50-56-A3-04-OC
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Which layer of the OSI seven-layer model controls the assembly and disassembly of data?
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Transport Layer
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Which layer of the OSI seven-layer model keeps track of a system’s connections to send the right response to the right computer?
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Session Layer
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The term “unshielded twisted pair” describes what network component?
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Cable
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Which of the following is most likely to be a MAC address assigned to a NIC?
A) 24.17.232.7B B) 23.4F.17.8A.4C.10 C) 192.168.1.121 D) 713.555.1212 |
B) 23.4F.17.8A.4C.10
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Which of the following OSI layers converts the ones and zeroes to electrical signals?
A) Network layer B) Transport layer C) Data Link layer D) Physical layer |
D) Physical layer
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What handles the initial connection between two computers to verify that the receiving system can handle the network request of the sending system?
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Session software
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Which of the following best describes an IP address?
A) A unique dotted decimal notation burned into every NIC B) A 48-bit identifying number assigned to a NIC by software C) A unique 48-bit identifying number burned into every NIC D) A dotted decimal notation assigned to a NIC by software |
D) A dotted decimal notation assigned to a NIC by software
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Which components work at Layer 1 of the OSI seven-layer model? (Select two.)
A) Hub B) Session software C) Cables D) Network protocol |
A) Hub
C) Cables |
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Describe the contents of a typical network frame.
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Recipient’s MAC address, sender’s MAC address, data, CRC
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The IEEE assigns what to manufacturers?
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The first 24 bits
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What enables you to connect a PC via modem to an IP network?
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Router
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If a sending system does not know the MAC address of the intended recipient system, it sends a broadcast frame with what MAC address?
A) FF-FF-FF-FF-FF-FF B) 11-11-11-11-11-11 C) 192.168.0.0 D) 00-00-00-00-00-00 |
A) FF-FF-FF-FF-FF-FF
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Which topologie requires termination?
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Bus
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Star-bus is an example of a __________________ topology.
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Hybrid
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What is the most fault tolerant topology?
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Star
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What term is used to describe the interconnectivity of network components?
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Topology
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Coaxial cables all have what type of rating?
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Ohm
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Which of the following is a type of coaxial cable?
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RG-59
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Which network topology connects nodes with a central ring of cable?
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Ring
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Which network topology is most likely seen only in wireless networks?
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Mesh
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Which of the following is a duplex fiber-optic connection?
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LC
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What is the most common category of UTP used in new cabling installations?
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CAT 5e
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The term “unshielded twisted pair” describes what network component?
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Cable
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Which of the following is most likely to be a MAC address assigned to a NIC?
A) 24.17.232.7B B) 23.4F.17.8A.4C.10 C) 192.168.1.121 D) 713.555.1212 |
B) 23.4F.17.8A.4C.10
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Which OSI layers converts the ones and zeroes to electrical signals?
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Physical layer
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What handles the initial connection between two computers to verify that the receiving system can handle the network request of the sending system?
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Session software
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What best describes an IP address?
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A dotted decimal notation assigned to a NIC by software
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Which components work at Layer 1 of the OSI seven-layer model? (Select two.)
A) Hub B) Session software C) Cables D) Network protocol |
A) Hub
C) Cables |
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What best describes the contents of a typical network frame.
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Recipient’s MAC address, sender’s MAC address, data, CRC
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The IEEE assigns what to manufacturers?
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The first 24 bits to manufacturers
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What enables you to connect a PC via modem to an IP network?
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Router
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If a sending system does not know the MAC address of the intended recipient system, it sends a broadcast frame with what MAC address?
A) FF-FF-FF-FF-FF-FF B) 11-11-11-11-11-11 C) 192.168.0.0 D) 00-00-00-00-00-00 |
A) FF-FF-FF-FF-FF-FF
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What are the three main components of fiber-optic cabling?
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Fiber
Insulating jacket Cladding |
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Which of the following is not a limitation on 10BaseFL cable?
A) Maximum speed of 10 Mbps B) Maximum distance between hub and node of 2000 meters C) Minimum CAT 3 or better UTP with RJ-45 connectors D) Maximum of 1024 nodes per hub |
C) Minimum CAT 3 or better UTP with RJ-45 connectors
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How are the connectors wired on a crossover cable?
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One end is TIA/EIA 568A; the other end is TIA/EIA 568B.
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Where are you most likely to encounter a mesh network?
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On wireless networks
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Which of the following are standard network topologies? (Select three.)
A) Ring B) Dual-ring C) Star D) Bus |
A) Ring
C) Star D) Bus |
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Which of the following is not a limitation on 10BaseT cable?
A) Maximum of 1024 nodes per hub B) Minimum CAT 3 or better UTP with RJ-45 connectors C) Maximum distance between hub and node of 100 feet D) Maximum speed of 10 Mbps |
C) Maximum distance between hub and node of 100 feet
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For what purpose is a crimping tool used?
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To attach an RJ-45 connector to a UTP cable.
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What organization is responsible for establishing and promoting networking standards?
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Institute of Electrical and Electronics Engineers (IEEE)
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What happens when two computers transmit through a hub simultaneously?
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A collision occurs.
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What are three aspects of network cabling the IEEE committee establishes?
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Speed
Cable types Frame size |
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Ethernet hubs take an incoming packet and ____________ it out to the other connected ports.
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Repeat
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What begins an Ethernet frame?
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Preamble
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What type of bus does 10BaseT use?
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Star Bus
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What is the maximum distance that can separate a 10BaseT node from its hub?
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100 meters
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When used for Ethernet, unshielded twisted pair uses what type of connector?
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RJ-45
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What is the maximum number of nodes that can be connected to a 10BaseT hub?
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1024
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Which of the following is not true of crossover cables?
A) They are a type of twisted-pair cabling B) They reverse the sending and receiving wire pairs C) They are used to connect hubs D) Both ends of a crossover cable are wired according to the TIA/EIA 568B standard |
D) Both ends of a crossover cable are wired according to the TIA/EIA 568B standard
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Which of the following connectors are used by 10BaseFL cable?
A) SC B) RJ-45 C) RJ-11 D) ST |
A) SC
D) ST |
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Which networking device can use the Spanning Tree Protocol (STP)?
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Switches
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What device filters and forwards traffic based on MAC addresses?
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Bridge
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When a network device can only send data or receive data, but not both at the same time, it is operating in what mode?
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Half-duplex
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All of the following are fiber connector types EXCEPT:
A) MT-RJ B) LS C) ST D) LC |
B) LS
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What is generated by every piece of UTP cable in existence?
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Crosstalk
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Which standard defines Fast Ethernet using fiber cabling?
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100BaseFX
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All of the following are 100BaseT cable types EXCEPT:
A) CAT 3 B) 10BaseFL C) CAT 5 D) CAT 5e |
B) 10BaseFL
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Which NIC type offers the most versatility?
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10/100/1000
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What important backbone technology is also known as Gigabit Ethernet?
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1000BaseT
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Which statement about structured cable is correct?
A) A demarc is used for fiber cabling while a network interface unit is used for UTP. B) The term “demarc” refers to a piece of equipment provided by an ISP while the phrase “network interface unit” refers to a piece of equipment provided by the customer. C) The term “demarc” refers to a physical location while the phrase “network interface unit” refers to a piece of equipment provided by an ISP. D) The terms “demarc” and “network interface unit” refer to pieces of equipment provided by an ISP. |
B) The term “demarc” refers to a piece of equipment provided by an ISP while the phrase “network interface unit” refers to a piece of equipment provided by the customer.
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Why would network techs use stranded core cabling from a patch panel’s ports to a switch?
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Flexibility
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Jenny’s office building recently had sections renovated, and now some users are complaining that they can’t see the network. She suspects that the workers might have inadvertently broken wires when they did ceiling work. George suggests she use a toner to figure out which wires go to the complaining users. Erin disagrees, saying that Jenny should use a Fox and Hound. Who’s right?
A) Only George is right. B) Neither George nor Erin is right. C) Only Erin is right. D) Both George and Erin are right. |
D) Both George and Erin are right.
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With 100BaseT, what is the maximum distance between the hub (or switch) and the node?
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100 meters
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What type of cable and connector does 100BaseFX use?
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Multimode fiber with ST or SC connectors
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How many pairs of wires do 10BaseT and 100BaseT use?
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2
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What standard does IEEE 802.3ab describe?
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1000BaseT
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What is the big physical difference between 1000BaseSX and 100 BaseFX?
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1000BaseSX is single mode where 100BaseFX is multimode
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What is the maximum distance for 1000BaseLX without repeaters?
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5000 meters
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What is a big advantage to using fiber-optic cable?
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Fiber is not affected by the EMI interference
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How many wire pairs does 1000BaseT use?
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4
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What is the standard connector for the 10-Gbe fiber standard?
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There's no standard
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What is the maximum cable length of 10GBaseT on CAT 6?
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55 meters
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What cable should never be used in a structured cabling installation?
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Coax
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What enables you to use multiple NICs together in a computer to achieve a much faster network speed?
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Bonding
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The CAT 5e rating defines how many pairs of wires in the cable?
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4
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What organizes and protects the horizontal cabling in the telecommunications room.
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Patch Panel
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Which of the following would never be seen in an equipment rack?
A) Patch Panel B) UPS C) PC D) All of the above may be seen in an equipment rack. |
D) All of the above may be seen in an equipment rack.
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What are patch cables used for?
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To connect the patch panel to the hub
To connect PCs to outlet boxes |
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Which of the following network technologies use UTP cabling in a star topology? (Select two)
A) 10Base2 B) Fiber-optics C) 10BaseT D) 100BaseT |
C) 10BaseT
D) 100BaseT |
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Jane needs to increase network throughput on a 10BaseT network that consists of 1 hub and 30 users. Which of the following hardware solutions would achieve this most inexpensively?
A) Add a fiber backbone B) Upgrade the network to 100BaseT C) Replace the hub with a switch D) Add a router |
C) Replace the hub with a switch
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What two devices together enable you to pick a single cable out of a stack of cables?
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Tone generator
Tone probe |
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Rack-mounted equipment has height measured in what units?
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U
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