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38 Cards in this Set
- Front
- Back
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Ethernet standard |
IEEE 802.3 |
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Wireless connection standard |
IEEE 802.11 |
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Unicast traffic |
Sent from one computer to one other computer |
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Broadcast traffic |
Sent from one computer to all other computers within that network/subnet |
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Multicast traffic |
Sent from one computer to a group of many other computers (all using a multicast group IP address) |
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IGMP |
Primary protocol used to transmit and process multicast traffic |
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NIC |
Network Interface Card |
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Cables |
Connect wired NICs with network devices such as hubs, switches, and/or routers |
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Router |
Connects different subnets or different networks |
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Collision domain |
A group of devices on the same segment that are subject to collisions |
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Broadcast domain |
A group of devices on a network that can receive braodcast traffic from each other |
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Switch |
Connects computers in a network/subnetwork; data from one port is sent only to the specified port(s) |
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Switches create separate __________ domains. |
Collision |
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Routers create separate __________ domains. |
Collision and broadcast |
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Hub |
Provides basic connectivity for devices in a network; data from one port is sent to all other ports |
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A network will perform better if you __________ the number of collisions. |
Reduce |
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Bridge |
Connects two or more network segments together (such as separate hubs, or dissimilar topologies such as a wireless network to a wired network) |
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Firewall |
Uses rules to keep malicious or unwanted traffic from flowing in or out of a network |
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Network-based firewall |
A combination of hardware/software often found b/w the Internet and an internal network |
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Host-based firewall |
Software that filters traffic passing in or out of a system |
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Common transmission media |
Twisted-pair, fiber-optic, and wireless |
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Straight-through cables connect __________ to __________. |
Computers / network devices (such as hubs, switches, or routers) |
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Crossover cables connect __________ to __________. |
Similar devices / each other (such as switch-switch, switch-hub, switch-router, or computer-computer) |
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Twisted pair cables are used for __________ distances, up to ______. |
Short / 100 meters |
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Fiber-optic cables are used for __________ distances, up to ______. |
Long / 2 kilometers (multimode) or 40 km (for single-mode). |
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T568B wiring standard (solid colors) |
Orange (2), blue (4), green (6), brown (8) |
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Protocols |
Provide the rules that computers and other devices use to communicate with other computers and devices on networks |
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Services |
Processes that run on a computer without any user interaction |
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IPv4 protocol standard |
RFC 791 |
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TCP/IP |
The primary protocol in use today |
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Automatic service |
Starts automatically when the computer boots; user interaction not available until all are completed |
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Automatic, delayed service |
Starts automatically after all automatic services have run; user is able to interact while these are running |
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Manual service |
Starts when required by other services, applications, or the user |
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Disabled service |
Cannot start until enabled by the user |
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Internet |
A massive network of computers connecting millions of smaller networks using the TCP/IP protocol suite |
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Intranet |
A private internal network using the TCP/IP protocol suite |
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Perimeter network /DMZ |
A network between the Internet and an intranet |
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Extranet |
A network with accessibility limited only to trusted entities to be able to access the Intranet |
