Network + Ch 4 RQ – Flashcards
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Which of the following cabling types is not recognized by the TIA/EIA for horizontal wiring?
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TIA/EIA recognizes UTP, STP, and Fiber-optics, they do not recognize coaxial.
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What kind of networking device on today's racks does nothing to do with data transmitted on a line other then pass it along through the connection?
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Patch panel
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In which layers of the OSI model do NICs operate?
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Layers 1 and 2
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What are the primary standard widths for rack systems?
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19 inches and 23 inches
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What device provides a central control portal for all devices on a rack?
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KVM (Keyboard, video, and mouse) switch
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what device protects computer from a momentary increase in voltage due to lighting strikes, solar flares, or electrical problems.
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Surge protector
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Providing a backup power source is called________.
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Power redundancy
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What generator component converts DC power from the generator to AC power that the electrical infrastructure in data center can use?
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Inverter
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Which type of Ethernet frames do today's networks use?
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Ethernet II frame
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What is the very beginning of an Ethernet frame called?
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Preamble
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Why is it important to use a structured cabling standard when installing and managing cabling systems?
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To maximize performance and minimize upkeep.
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what is the first point of interconnection between an organization's LAN or WAN and a service provider's facility, and what components are generally included at this location?
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MDF (Main distribution frame)
and Demarc.
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Why is it important to use plenum-rated cabling in the area above the ceiling tile?
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is coated with a flame-resistant jacket that produces less smoke.
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What are the three methods by which a NIC can interface with a computer's motherboard?
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1. integrated into the motherboard
2. installed in an expansion slot on the motherboard.
3. installed as a peripheral device
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What does a loopback plug do?
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It allows you to test the NIC to see if it will pass a physical component test.
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What is the unit of measurement that defines the space available in a rack? How tall standard racks?
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RU (Rack Unit)
42U or 6 feet
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What are the two general categories of UPSs?
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Offline UPS and Online UPS
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What are some elements that are typically included in network diagrams?
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Physical topology
Access method
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What is the GUI version of Nmap for Windows?
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a command-line utility originally designed for Linux
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What is a wiring schematic?
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A graphical representation of a network's wired infrastructure.
