Your supervisor wants you to set up a class C subnetting scheme for private IPv4
ID: 3853086 • Letter: Y
Question
Your supervisor wants you to set up a class C subnetting scheme for private IPv4 addresses that will allow for eight subnets and thirsty hosts per subnet. What will be the subnet mask for each subnet? How many bits would be reserved for the host portion of the address? If a personal computer in one of those subnets wishes to establish a connection to a server whi9ch has a public IPv4 address, what type of service needs to be configured on the gateway router servicing the personal computer? Management has requested an explanation why the network administration team has recommended changing the pre-existing unshielded twisted-pair(UTP) cabling with multimode fiber cabling. As a member of network administration team you have been given the responsibility to provide a written explanation outlining the issues with the pre-existing UTP cabling and the advantages multimode fiber cabling. What would you include in the written explanation?Explanation / Answer
no of host required per subnet= 30 host
prefix value will be 27
subnet mask =255.255.255.224
block size=8
networks id for 8 subnet will be=
192.168.0.0
192.168.0.32
192.168.0.64
192.168.0.96
192.168.0.128
192.168.0.160
192.168.0.192
192.168.0.224
broadcast id for these network will be
192.168.0.31
192.168.0.63
192.168.0.95
192.168.0.127
192.168.0.159
192.168.0.191
192.168.0.223
192.168.1.31
Multimode fiber optic cable and components are less expensive and easier to work with than their singlemode counterparts. This is due largely to the fact that the multimode fiber core is larger, and alignment tolerances are much less critical than they are for singlemode fiber. Standard multimode cable is made of glass fibers, usually 50-to-100 micron in diameter. Multimode cable is also available as low-cost Plastic Optical Fiber, which offers performance similar to glass cable for very short runs. These fibers enable the cable to carry light of multiple wavelengths. Because they do not require light of a specific wavelength, they can use a light-emitting diode as a light source.
UTP cables are capable to radio frequency interference and electromagnetic interference such as is caused from the microwave, and they are more prone to electronic noise and interference than other forms of cable. For this reason, they should be kept out of the wave range of electric motors and fluorescent lighting.Unshielded twisted-pair cable does not rely on physical shielding to block interference. It relies instead on balancing and filtering techniques using media filters, baluns or both. Noise is induced equally on two conductors and is canceled out at the receiver.
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