Lab 7.1.1
Why is it impractical for an organization to own the entirety of a WAN?
There are no limitations on WANs so they can be custom built for the size of the organization.
Why is it favorable for an organization to maintain ownership of the entirety of the LAN?
Because the purpose of organizational expansion.
Table 7-1 WAN Physical Media
Media Infrastructure Summary
UTP Phone lines The quality of UTP may vary from telephone-grade wire to extremely high-speed cable. The cable has four pairs of wires inside the jacket. Each pair is twisted with a different number of twists per inch to help eliminate interference from adjacent pairs and other electrical devices.
Coaxial Television cable Coaxial cabling is difficult to install, it is highly resistant to signal interference. In addition, it can support greater cable lengths between network devices than twisted pair cable.
Fiber-optic Connecting networks between buildings. Uses a customized infrastructure to run dedicated connections; this is a costly option.
Electric power lines The bulk transfer of electrical energy. This type of media can be used with broadband over power lines (BPL), making use of the extensive infrastructure in place already.
Lab 7.1 Review
1. How can cables like UTP and coaxial cable be used for long-distance communication in a WAN infrastructure? Where are these cables used most often?
The quality of UTP may vary from telephone-grade wire to extremely high-speed cable. It uses most popular in school network. Coaxial can support great cable lengths between network devices. Coaxial cable has been popular in school networks, especially linear bus networks.
Lab 7.2.1
What are the benefits of using a dedicated leased line? What are the limitations of using a dedicated leased line?
Leased line have many advantages such as high speeds, fast uploads, good reliability, and better support. The limitations are the cost of using leased line and keep the line in good working order.
Lab 7.2 Review
Point to Point Protocol (PPP) is a data link protocol commonly used in establishing a direct connection between two networking nodes. It can provide connection authentication, transmission encryption and compression.
You May Also Find These Documents Helpful
-
UTP is less expensive than dedicated coax or fiber, Color-coded cabling, physically smaller than coax, easiest media to install and reconfigure, UTP is extremely easy to terminate. TP cable is less expensive per foot than traditional RG59 coaxial cable…
- 315 Words
- 2 Pages
Satisfactory Essays -
2. Backbone Cable : Backbone cabling is the inter-building and intra-building cable connections in structured cabling between entrance facilities, equipment rooms and telecommunications closets. Backbone cabling consists of the transmission media, main and intermediate cross-connects and terminations at these locations. This system is mostly used in data centers.…
- 932 Words
- 4 Pages
Good Essays -
NT1210 Mid-Term Exam Study Sheet Chapter 1 1.Kilobye (KB), Megabyte(MB),Gigabyte(GB), Terabyte (TB) –Approx. number of bytes in each 2.Capacitor charge to represent 0 or1 3. Convert binary to decimal 4.Hexadecimal 5.Disk drive – platters, tracks, sectors Chapter 2 6.Digital voice calls 7.Video compression 8.Web address – identify protocol, server, web page 9.Internet core 10.Device drivers 11.Network topologies Chapter 3 12.Networking standards 13.De Facto standard 14.TCP/IP model 15.OSI model 16.Routers role in network 17.…
- 720 Words
- 7 Pages
Satisfactory Essays -
Microphones, PA systems, Audio cables, Power cables, and RG-6 Cables used for television. There are three reasons, that I can think of, to use shielded cable instead of unshielded. Radio Frequency Interference (RFI) was the earliest interference engineers had to deal with. Early radio signals easily found their way into devices. Coaxial cables and shielded twisted pairs using copper can eliminate…
- 2211 Words
- 6 Pages
Satisfactory Essays -
Twisted pair comes in two varieties, shield (STP) and unshielded (UTP). The name describes the cabling completely, there are two pairs of cables twisted together in order to reduce cross talk between the wires. Phone line in houses and businesses still use USP for analog telephone and fax machines to this day. UTP comes in many varieties and is constantly being built upon. Cat5e, Cat6, Cat7, and now Cat 8 cables are available to businesses and end users today. With this standard pushing 40 Gigabytes per second the only question remains is what are the full limitations of copper? STP is nothing more than adding extra shielding to reduce crosstalk in the UTP standards. These are extremely cost effective networking cables and are easier to install than coax. Twisted pair is more…
- 1357 Words
- 6 Pages
Better Essays -
1. The quality of UTP cables can vary from telephone-grade wire to extremely high-speed cable. They more prevalent in school networks. Coaxial can support great cable lengths between network devices. Coaxial cable has been popular in school networks, especially linear bus networks.…
- 420 Words
- 3 Pages
Satisfactory Essays -
Coaxial cable conducts electrical signal using an inner conductor (usually a solid copper, stranded copper or copper plated steel wire) surrounded by an insulating layer and all enclosed by a shield, typically one to four layers of woven metallic braid and metallic tape. The cable is protected by an outer insulating jacket. Normally, the shield is kept at ground potential and a voltage is applied to the center conductor to carry electrical signals.…
- 607 Words
- 3 Pages
Satisfactory Essays -
a. Near end cross talk, Far end Cross Talk, Equal Level Far end cross talk. Alien cross talk…
- 1089 Words
- 6 Pages
Satisfactory Essays -
These fibre optic cables carry DWDM (http://en.wikipedia.org/wiki/Wav...) laser signals ( TCP/IP packets etc. ) at a rate of terabytes per second. They use optical repeaters to strengthen the signal which attenuates over long distances. These are powered by copper cables shown above.…
- 1092 Words
- 5 Pages
Good Essays -
5. When using a cable modem to connect to the Internet, the data transmission shares the cabling with what other technology?…
- 1262 Words
- 6 Pages
Powerful Essays -
You can think of a protocol's capacity to be the cross sectional of a pipe.…
- 1174 Words
- 5 Pages
Powerful Essays -
Copper cabling has been around ever since electricity was discovered and utilized in a day-to-day fashion. It was used mainly for telephone lines in the beginning of its “birth”. Copper cabling comes in many forms such as coaxial, CAT5e, CAT6, UTP (Unshielded Twisted Pair), and STP (Shielded Twisted Pair) to just name a few. Coaxial has been in use for the longest period of time and one of the first types used in networking. CAT5e is the most common used today in networking with the bandwidth it supports and is available in UTP or STP. CAT6 can support any application that “lower” cables can and also has a higher bandwidth and is available in UTP and STP as well. UTP is unshielded twisted pair, which means that the cables twisted together do not have any extra protection again EMI (Electromagnetic Interference). STP shielded twisted pair, which means that the cables twisted together have and extra metallic foil or multi-wire screen mesh that is used to reduce EMI. Copper cabling is much more cost effective than fiber, easy to install, and the components/equipment are cheaper than what fiber requires, but there are many more down falls with copper when it comes to comparison with fiber cabling. Copper has a maximum distance of 90 meters if you exceed the 90m meter limit you will start getting attenuation problems which means you will start losing signal strengths.…
- 510 Words
- 3 Pages
Satisfactory Essays -
DSL enables the user to access the phone line and the internet at the same time. It works faster than the dial-up and provides the user with the ability to choose different connection speeds at a cost. The disadvantage of DSL is that the receiving speed of data is faster that the sending speeds. DSL may not be available in remote areas inconveniencing users from these locations. Users far from the provider’s central location experience slow transmission speeds.…
- 351 Words
- 2 Pages
Satisfactory Essays -
-Twisted pair cabling is a type of wiring where two conductors are twisted together in order to cancel out electromagnetic interference from external sources. This type of cabling was invented by Alexander Graham Bell, the inventor of the telephone.One of the types of twisted pair cabling is UTP, or unshielded twisted pair. It is normally used in Ethernet and telephone systems…
- 4494 Words
- 18 Pages
Powerful Essays -
Coaxial cable: is an electrical cable consisting of a round conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, usually surrounded by a final insulating layer. It is used as a high-frequency transmission line to carry a high-frequency or broadband signal. Sometimes DC power (called bias) is added to the signal to supply the equipment at the other end, as in direct broadcast satellite receivers. Because the electromagnetic field carrying the signal exists (ideally) only in the space between the inner and outer conductors, it cannot interfere with or suffer interference from external electromagnetic fields.…
- 1091 Words
- 5 Pages
Good Essays