1- A structured cabling installation connects a computer in a work area to a swi
ID: 3596287 • Letter: 1
Question
1- A structured cabling installation connects a computer in a work area to a switch in the telecommunications room. Put the components of the installation in order, starting from the switch and ending at the computer. 1 is closest to the switch and 5 is closest to the host.
_______ horizontal cabling
_______ patch cable in the telecommunications room
_______ patch cable in the work area
_______ patch panel
________ wall outlet
2- Assume you provide the tech support for your office, which uses a wired Ethernet. One user reports that his computer is working but he cannot access anything using the network. All other users have no problems.
a) Do you suspect that the problem is in one computer or a shared resource? Why?
b) List two possible failures that may cause this problem.
4- A switch and a NIC are negotiating a connection. The switch operates at 10Mbps, 100 Mbps, and 1000 Mbps. The switch supports both half-duplex and full-duplex connections. The NIC operates at 100 Mbps and 1000 Mbps. The NIC supports half-duplex connections. After the negotiation, what speed will the link operate at? Will it be full-duplex or half-duplex?
5- The standard wired Ethernet uses CSMA/CD but WiFi uses CSMA/CA. Why the difference?
6 - Contrast the following methods of WiFi Security: MAC address filtering, wireless authentication, and data encryption.
7 - Identify the medium used by each type of connection or protocol. The choices are unshielded twisted pair, coaxial cabling, fiber optics, and radio waves.
802.11 WiFi ______________
Cable modem ______________
OC-1 connection _______________
DSL ______________
FIOS _______________
Modern Ethernet (two answers) _______________ or
_______________
8- An Ethernet frame contains 900 bytes of payload data. You will need to look up the length of the header and trailer. Calculate the percentage of the frame that is overhead (do not include the preamble in the frame).
9 - Assume an Ethernet frame is to carry 30 bytes of payload data. What is the size of the frame in bytes? You will need to look up the length of the header and trailer. (do not include the preamble in the frame, but do include padding if necessary)
[ I NEED ANSWERS TO THESE QUESTIONS ASAP. This is for practice. ]
Explanation / Answer
Here are the answers, I've answered the first 4 questions as per chegg policy. Do comment if you have any doubts regarding this solution. Thumbs up if this helped you!
1. Based on standard component and hardware procedures :
Horizontal cabling - 3
Patch cable in telecommunications room - 1
patch cable in work area - 5
patch panel - 5
wall outlet - 4
2. The problem is not in the shared resource because no other computer is facing this problem. Thus, it the problem is either in his computer or the cable connecting his computer to the network.
3. CSMA/ CD stands for collision detection while CA stands for collision avoidance. Wired and wireless networks have different needs and thus CSMA / CD and CSMA /CA are used for transmitting and receiving data.
4. Mac address filtering basically filters based on a computer or a device's mac address, and thus data transfer can be prevented from specific blacklisted users. Wireless authentication is a standard framework used when a user is trying to a wireless or wired network. Data encryption enrypts the data, or moifies the data based ona key which can be accessed from the other end only if decrypted using the same key.
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