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What was the original maximum data transfer rate of the first ethernet developed by xerox?

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Term
How long is a MAC address?
 Definition
12 hexadecimal characters
Term
A MAC address is composed of which two parts?
 Definition
The organizationally unique identifier and the unique device ID of the NIC
Term
What must match in the communications between all NICs on a network?
 Definition
Term
What is the length of the typical frame?
 Definition
Term
What happens to frames when the hub sends them to the NICs on the network?
 Definition
The frames are recieved by every NIC, but only the NIC with the matching MAC address procces the frame
Term
Where does the CRC come from in a network frame?
 Definition
The sending NIC attaches it
Term
 Definition
A unique dotted decimal number assigned to every netwrk node
Term
Which layer of the OSI model uses routers and IP addresses to ensure that packets arrive at the correct system?
 Definition
Term
Which layer of the OSI model adds source and destination MAC addresses to frames?
 Definition
Term
In some networks, data moves over radio waves. Which layer of the OSI model does this fall into?
 Definition
Term
Describe Logical Link Control (LLC).
 Definition
It is a sublayer of the Data Link layer
Term
Anything that moves data from one system to another is part of what layer of the OSI model?
 Definition
Term
Which layer of the OSI model is the only layer divided into two sublayers?
 Definition
Term
What device do you need to split a large network into smaller ones?
 Definition
Term
How does the receiving system on a network use the CRC to verify that it recieved accurate data?
 Definition
It uses the same divisor as the sending system to find the same remainder
Term
What is the Network layer unique identifier assigned to each device on a TCP/IP network?
 Definition
Term
Routers function at which layer of the OSI model?
 Definition
Term
What is the minimum category rating of UTP cabling you would need for a network that runs at 1000 Mbps?
 Definition
Term
What two topologies provide no fault tolerance?
 Definition
Term
What organization provides a variety of industry wide cabling standards, such as those for serial, parrallel, and FireWire?
 Definition
Term
What rating defines how much a cable resists the flow of electricity?
 Definition
Term
Which cable type does NOT use copper wires?
 Definition
Term
What type of fiber-optic cable uses lasers to send signals?
 Definition
Term
What is the fastest category of UTP cabling?
 Definition
Term
Which IEEE subcommittee sets the standards for Wireless Lan networks?
 Definition
Term
How many cable fibers are normally required by almost all network technologies that use fiber-optic cable?
 Definition
Term
Which kind of cable works best for long distance transmissions?
 Definition
Term
Which kind of cable does not provide any protection against EMI?
 Definition
Term
What kind of cable is described as a central conductor wire, surrounded by insulating materials, placed inside a braided metal shield?
 Definition
Term
Which kind of cabling would you select when you need to cover distances that span kilometers?
 Definition
Term
What is the only important measure of coax cabling?
 Definition
Term
Which network topology offers the greatest level of fault tolerance?
 Definition
Term
At what layer of the OSI model does network cabling belong?
 Definition
Term
Which connector is used for UTP cabling on a network?
 Definition
Term
What distance can a signal travel on a fiber-optic cable?
 Definition
Term
What hybrid topology is the dominant wired network topology?
 Definition
Term
Most network technologies that use fiber-optics use which type of fiber-optic cables?
 Definition
Term
What does the term "capacitance" refer to?
 Definition
Bandwidth the cable can support
Term
With a star-bus network, where is the single point of failure that will bring down the entire network?
 Definition
Term
UTP category rating are based on what?
 Definition
Highest frequency and bandwidth that the cable can handle
Term
What is the most common use of coaxial cable in networking today?
 Definition
Connecting a cable modem to an Internet Service Provider (ISP)
Term
Which type of cabling does the 10BaseT standard specify?
 Definition
Term
What is the minimum size of an Ethernet frame?
 Definition
Term
What kind of cabling does the 10BaseFL standard specify?
 Definition
Term
What does it mean if a NIC runs in promiscuous mode?
 Definition
Term
Describe a preamble of an Ethernet frame.
 Definition
It includes 64 bits of alternating ones and zeros that end with 11 to notify the receiving NIC that a frame is starting
Term
What is the maximum speed at which 10BaseT Ethernet networks communicate?
 Definition
Term
How many wires does the 10BaseT specification require in the cabling used?
 Definition
Term
Which version of Ethernet was introduced in 1990?
 Definition
Term
Which companie was not involved in the 1979 introduction of the DIX Ethernet?
 Definition
Term
Describe the comparison of repeaters and bridges.
 Definition
Repeaters retransmit all packets, while bridges examine the destination MAC address to determine which packets to forward onto the next segment
Term
What is the original maximum data transfer rate of the first Ethernet developed by Xerox?
 Definition
Term
What is the meaning of the "10" in 10BaseT?
 Definition
Term
What is an acceptable maximum collision rate on a properly running Ethernet network?
 Definition
Term
When a collision occurs on a network relying on the CSMA/CD access method, what alerts the NICs?
 Definition
Term
How many pins does an RJ-45 connector have?
 Definition
Term
How many basic pieces of information does an Ethernet frame contain?
 Definition
Term
What events, characteristic to an Ethernet network using hubs, does using an Ethernet switch minimize or avoid?
 Definition
Term
What is the biggest differentiator among Ethernet hubs?
 Definition
Term
Which Ethernet cabling standard defines an Ethernet network that uses CAT3 or better UTP cabling, operating at 10Mbps?
 Definition
Term
What basis do bridges use to determine whether to forward traffic?
 Definition
Term
What is the maximum number of nodes that can be attached to a 10BaseT segment or hub?
 Definition
Term
How many pairs of pins in an RJ-45 connector does a 10BaseT device actually use?
 Definition
Term
Which standard specifies multimode cabling?
 Definition
Term
When a multispeed, auto-sensing 100BaseT NIC connects to a 10BaseT Ethernet hub, at what speed will the NIC function?
 Definition
10 Mbps sending and receiving
Term
Of all the 10-GbE standards described in the chapter, which one was most recently released?
 Definition
Term
The "W" in the standard 10GBaseSW stands for which type of signaling?
 Definition
Term
What term is used to refer to any of the several variations of Ethernet that operate at 100 Mbps?
 Definition
Term
Of all the Gigabit Ethernet standards detailed in chapter 5, what maintains a signal over the greatest distance?
 Definition
Term
What is the limit to the number of nodes in every version of Ethernet?
 Definition
Term
What wavelength is used on 10GBaseLW fiber-optic cabling?
 Definition
Term
Presently, where is 10-GbE equipment employed?
 Definition
High-bandwidth LANs and WANs
Term
For a network to function in full-duplex, which devices must support full duplex?
 Definition
Term
If you have a 100BaseT switched Ethernet network, what is the theoretical maximum bandwidth using full duplex NICs?
 Definition
Term
Which versions of Gigabit Ethernet are published under the 802.3z standard?
 Definition
1000BaseCX ,1000BaseLX, 1000BaseSX
Term
What type of fiber-optic cable is used in a 1000BaseLX network?
 Definition
Term
What is the solution manufactures devised to accomodate the need for switches to connect to a variety of 10-GbE connector types?
 Definition
Multisource agreements (MSAs)
Term
Which version of Gigabit Ethernet uses a unique cable known as twinaxial?
 Definition
Term
What type of fiber-optic cabling and connectors does a 100BaseFX network use?
 Definition
Multimode with ST or SC connectors
Term
Which version of Gigabit Ethernet is published under the 802.3ab standard?
 Definition
Term
What very high-speed fiber network was already in place before the IEEE developed the 10-GbE Ethernet standards?
 Definition
Term
What version of Gigabit Ethernet is being positioned as the Ethernet backbone of the future?
 Definition
Term
What is the maximum cable length for a 1000BaseT network?
 Definition
Term
The specification for 100BaseTX calls for UTP cabling using ________ or better rated cabling.
 Definition
Term
The "R" in the standard 10GBaseSR stands for which type of signaling?
 Definition
Term
What protocol (including version number) was adopted in 1994, and is now considered obsolete except for small, private WANs?
 Definition
Term

Which of the following could be a valid Autonomous System Number (ASN)?

0.0.0.0

1.33457

192.168.30.1

255

 Definition
Term
 Definition
Term
Which type of NAT is the most popular?
 Definition
Term
Who assigns Autonomous System Numbers (ASNs)?
 Definition
Term
Some manufacturers, such as Cisco, use this term to refer to either overloaded NAT or port forwarding?
 Definition
Port Address Translation (PAT)
Term
In a NAT router, what is the name for an arbitrary number generated by the sending computer?
 Definition
Term
What is the name of the proprietary cable designed by Cisco for connecting to their routers?
 Definition
Term
Local connections do not use this, although every routing table has a column for it an therefore, a value appears in this field for each route.
 Definition
Term
On a TCP/IP network, what information within a packet does a router use to determine where an incoming packet should go?
 Definition
Term
What is a valid Area ID? What would it look like?
 Definition
Term
What is the maximum number of hops allowed by RIP?
 Definition
Term
At which layer of the OSI model do routers work?
 Definition
Term
An administrator managing many routers should be using this type of tool in order to have an overall view of all the routers.
 Definition
Network Management System (NMS)
Term
What is the protocol developed by Cisco for enterprise-wide routing environments?
 Definition
Term
What is the term used for the passage of a packet through a router?
 Definition
Term
What is the range of numbers normally used for ephemeral ports?
 Definition
Term
Routers using the OSPF protocol are organized into these groups
 Definition
Term
What is the one protocol used on the Internet for communication between Autonomous Systems?
 Definition
Border Gateway Protocol (BGP-4)
Term
What are the link state dynamic routing protocols?
 Definition
Open Shortest Path First (OSPF) and IS-IS
Term
With this type of NAT, many computers can share a pool of routable IP addresses that number fewer than the computers.
 Definition
Term

Which of the following is not a distance vector protocol?

OSPF

RIPv1

RIPv2

BGP

 Definition
Term
When a NAT router uses the ________ in conjunction with IP addresses, it solves the two problems of security and limited IP addresses.
 Definition

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What was the original maximum data transfer rate of the first ethernet developed by xerox?

What was the original maximum data transfer rate of the first ethernet developed by xerox?

What was the original maximum data transfer rate of the first ethernet developed by xerox?

Crio Eth

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