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45 Cards in this Set
- Front
- Back
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What does ISP stand for?
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Internet Service Provider
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What is the typical broadband download speed worldwide?
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9 Mbps
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What is the typical broadband upload speed?
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2.5Mbps
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What is bandwidth?
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Bandwidth measures how many bits per second can be transmitted.
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What is throughput
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Throughput measures the amount of bits per second that can be transmitted
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What are the two measures of the network speed?
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Bandwith, Latency
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What are the three measures of network speed
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Download bandwidth, upload bandwidth, and latency
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What is latency
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Latency is the delay between a packet being sent and received.
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What does demarc stand for?
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Demarcation Point
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Why is demarc important
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The ISP is responsible for everything outside the demarc. you are responsible for everything inside the demarc.
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What does modem stand for
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Modulator/Demodulator
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What does a modem do?
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It converts between logical bits and physical waves.
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What does WAN stand for?
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Wide Area Network
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What does UTP stand for?
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unshielded twisted pair
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What does UTP do?
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It is a physical cable for carrying bits between devices within a local area network.
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What does Cat 5 stand for?
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Category 5
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Which is better quality, cat 5 or cat 6?
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Cat 6
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What is troubleshooting?
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When you have trouble, you try to figure out the cause and how to fix it.
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What two times should you connect your computer directly to a modem?
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When it's the only computer on your home network, or when you are troubleshooting the network.
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What five services does a typical home router provide?
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Firewall, gateway, DHCP, NAT, and Wi-Fi
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What does a firewall do?
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It stops uninvited packets from reaching your computer
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What does a gateway do?
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It provides a path from your computer to the internet.
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What does DHCP do?
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It provides network configuration information to your computer when you connect to the network.
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What does NAT do?
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normally, it translates non-rotatable IP addresses into rotatable ones.
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What does Wi-Fi do?
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It provides wireless connections between laptops and the local area network.
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What does WAP stand for?
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Wireless Access Point
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What does WLAN stand for?
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Wireless local area network
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How fast is Wi-Fi?
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54Mbps, shared, is common
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How many connections can a Wi-Fi access point handle?
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Hundreds.
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How fast is a wired connection?
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100 or 1000 Mbps in each direction per connection is common.
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What is duplex?
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Duplex tells whether you have two paths, in and out, that can operate at the same time.
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What is Half-Duplex?
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You can send and recieve, but not both at the same time. Wi-Fi is typically half duplex.
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What is Full Duplex?
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You can send and recieve both at the same time. Wired connections are typically full duplex.
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What benefit does a switch provide?
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It provides more wired ports for your LAN.
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Name five components of a Home internet system.
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ISP, Modem, router, WAP, Computers
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Name five categories of ISP.
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Cable, Telephone (DSL) Wireless, satellite, Power line, Fiber Optic
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What does UPS stand for?
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Uninterupptible power supply
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What is a hotspot?
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Also called a Wi-Fi hotspot, it is another name for Wireless Access Point.
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What does default mean?
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Default is the choice or action that twill happen if you do not specify something else
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What defaults should I not keep?
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passwords
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What passwords does a home router normally have?
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An administrative password and a Wi-Fi password. Save all your settings.
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What is a Global Broadcast Ping?
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It is a ping to every device you can reach.
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How do you do a Global Broadcast Ping?
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ping 255.255.255.255
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With Global Broadcast Ping, who is the first responder?
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Normally the device sending the ping is the first to respond.
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With Global Broadcast Ping, who is the second responder?
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Normally the router (gateway) connecting you to the rest of the internet is the second device to respond.
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