FINAL EXAM NETCOM1 REVIEWER PDF

REVIEWER IN NETCOM1 FINALS What is the attenuation of a category 6 medium? 21.3 What is the Voltage Ratio of a -12 db or 0.250 It a hindrance to the signal because it restrict the flow of electricity known as Conductive resistance the characteristics is an electrical occurrence experien...

REVIEWER IN NETCOM1 FINALS What is the attenuation of a category 6 medium? 21.3 What is the Voltage Ratio of a -12 db or 0.250 It a hindrance to the signal because it restrict the flow of electricity known as Conductive resistance the characteristics is an electrical occurrence experienced when a cable has more than one and place together known as Mutual capacitance Is a combination of resistance capacitance and inductance and is express in ohms known as Impedance Minute changes in the diameter copper the thickness of the insulating layer or the centering of conductor it causes disturbing electric field known unbalanced. Cross talk are noise they are signal that are acoustically active Resistance unbalance occurs when the dimension of the two conductor are not identical What do you call the noise that the distance is @ the point of testing Near end cross talk What do you called the cross talk that is opposite of the point of testing Far End Cross talk What do you call the cross talk coupling between cabling pairs measured at the end of the cable opposite to the end of the signal source. ELFEXT It is a method of measuring end to end cross talk pair to pair It also applies to both NEXT and FEXT and must always taken consideration for cables that will support technologies using more than one wire pair at the same time Power sum crosstalk It is a type of cross talk occurs when the signal being carried in one cable interferes with the signal being carried in another cable alien cross talk What is the term use for this type of cross talk that occurs between different cables in a bundle rather that between individual wire pairs within a cable alien It can be minimized by avoiding configuration in which cable are tightly bundled together or run parallel to one another in close proximity for long distance AXT Is an indication of how much larger the received signal is when compared to the NEXT on the same pair Attenuation to resistance In a Network Setup Cross talk must be considered even its minimum and maximum values are present Cross talk are not general form of noise that correspond to electrical Noise Noise Consideration of the difference of crosstalk (noise) and attenuation is important because the signal is just the same. is the measurement of the performance values of actual ACR Headroom Attenuation is a signal called none of the above What is the value of -15db voltage ration none of the above What is the value in db of the voltage ratio 0.398 None of the above what is the value in db of the voltage 0.447. None of the above  It is a network device that’s handles the routing of data packets of each port known as Router It is a network device that switches data packets whenever is needed by the device known as Switch It is a device that always send data packets to each port, even though the PC attach to it is off known as HUB It is a type of router that all function and setting are configurable and usually has CLI known as Main Router It is a type of router that has the main instruction of the entire Network known as Main Router The role of this router is to distribute the instruction from the core router known as Distribution Routers This type of routers is usually at the perimeter of the network Infrastructure known as Edge Router This type of router only repeats the signal that it was receive and it doesn’t extend the signal known as. Repeater Router This type of router is use for extending the no. of ports in the LAN known as Extension Router A type of router that is use for accessing the network thru user name and password known as Access point A type of router that amplifies the signal that it receives known as Wifi Extender The Router will provide Ip Address to the connecting device present in the Connection The is Switch a device that switch the data packets where it is needed most but will never give an ip address to the device who is connected The HUB is one of the “Dumb” device that must be remove from the Network Noise is un wanted signal that is in general form It is always present it cannot be destroy but it can only minimized and control is known as Noise It is always consider as a signal loss known as Attenuation It is a called the blocking the signal path Interference It is called the jumping of leaked signal from one path to other path Crosstalk. attenuation is a type of noise that generates a lot of signal Noise is not an exact measured system it can not be represented to exact value SNR stands for Signal level to Noise Ratio In every 3db of signal loss translate into 50 percent of the signal power is loss In every 50db decibel value what is the corresponding actual increase in measured parameter is 100,000 What is the attenuation of a category 5e Medium is 24