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23 Cards in this Set
- Front
- Back
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A ________ network is a sub-network in which a dedicated circuit is established between sender and receiver, and all data passes over this circuit |
Circuit-switched |
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In a ________ packet-switched network, all packets that belong to a logical connection can follow the same path through the network. |
Virtual circuit |
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_______ is a high-bandwidth WAN signaling technique that specifies framing and multiplexing techniques at the Physical layer of the OSI model. |
SONET |
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A _______ uses time division multiplexing over two wires to divide a single channel into multiple channels |
T carrier |
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________ is an analog, packet-switched technology optimized for reliable, long-distance data transmission |
X.25 |
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________ is an updated version of X.25; it relies on packet switching to carry digital signals. It does not analyze frames to check for errors and offers a maximum of 45-Mbps |
Frame relay |
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________ is a Data Link layer standard that relies on fixed packets, called cells, consisting of 48 bytes of data plus a 5-byte header. This connection-oriented technology based on virtual circuits provides throughputs up to 622 Mbps |
Asynchronous Transfer Mode (ATM) |
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________ contain WAN sites that are connected in star or ring formations are interconnected at different levels, with the interconnection points being organized into layers to form hierarchical groupings. |
Tiered topology WAN |
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________ contains a single site acting as the central connection point for several other points. |
Star topology WAN |
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________ occurs when downstream throughput is higher than upstream throughput. |
Asymmetrical communications |
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________ occurs when each WAN site is directly connected to no more than two other sites in a serial fashion. |
Bus topology WAN |
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________ provides an equal capacity for data traveling both upstream and downstream. |
Symmetrical technology |
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________ incorporates many directly interconnected WAN sites |
Mesh topology WAN |
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What is the 5-4-3 rule of networking? |
5 networking segments - 500 meters 4 repeating devices 3 populated segments maximum |
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What is a computer with onboard peripherals? |
The drivers are already installed. To add an expansion card to the computer, enter BIOS-CMOS to disable onboard NIC, must install native drivers. |
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Which switching method works like this: It reads the frame's header, forwards before reading the entire packet, uses frame header, cannot verify data integrity, can detect erroneously short packets, cannot detect corrupted packets. It is fast but floods the switch with additional traffic. |
Cut-through mode |
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What connectivity device can be used to connect two sub networks, keeps track of MAC addresses to keep track of where different tracking is coming from, isolates traffic to different subnets, can be used to extend the length of networks, and gets updated as traffic goes through it? |
Bridge |
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Which switching method works like this: it reads the entire data frame into memory, checks for accuracy before transmitting data, transmits data more accurately than other modes, can transfer data between segments running different transmission speeds, but is slower than other modes |
Store-and-forward mode |
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What are three types of routers? When are they used? |
Interior, internal, exterior. Interior are used within the network to connect to outside networks. Internal routers are connected to switches, exterior routers connect to different networks. |
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What are the two protocols under distance-vector routing protocols? |
Routing Information Protocol (RIP) and Border Gateway Protocol (BGP) |
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What is the limit for Routing Information Protocol? |
Only allows for 15 hops. For internal networks. |
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What is Border Gateway Protocol used for? |
It is used between external routers. |
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What topology has every site connected to every other site, is expensive, has alternate pathways if one is lost, is flexible, and has dynamic routing tables updated if one router goes down? |
WAN mesh topology |
