NT 1310 PHYSICAL NETWORKING UNIT 7 DEFINITIONS KENDAL JEFFERSON 1. CROSSTALK: The coupling or transfer of unwanted signals from one pair within a cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels. 2. WAVEGUIDES: A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide. 3. FTTH: :
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Which two of the following are Layer 2 protocols commonly used in WANs? PPP and HDLC Which of the following describes a collision domain? Devices connected to an Ethernet hub Which of the following protocol operates at the OSI model Transport Layer? UDP What process is used by a DNS server to add a UDP header to the contents of a DNS query response‚ followed by adding an IP header‚ and then adding a data link header and trailer is an example of what? Data Encapsulation The term autonomous
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NT 1310 Physical Networking Unit 9 Assignment 1 : Transmitters. Exercise 1 : Light Sources and Companents LAB 1 : New Building – Optical – Network Amir R. Ghattas The differences between LED and Laser Transmitters LED LED (Light-Emitting Diode) is a two-lead semiconductor light source. It resembles a basic p-n junction diode (is a boundary or interface between two types of semiconductor material‚ p-type and n-type‚ inside a single crystal of semiconductor.‚ which emits light when activated.
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HOSTS SETUP 1: Turn off all internet access. 2: You need to find your existing hosts file so navigate to here (hidden files and folders need to be shown); Windows 7/Vista/XP Windows 2K = = C:\WINDOWS\SYSTEM32\DRIVERS\ETC C:\WINNT\SYSTEM32\DRIVERS\ETC 3: In the ETC folder is a file called hosts‚ open this file with notepad (double click then open with notepad)‚ in notepad the file will look like this; 4: If you have any information after the; # ::1 localhost Then copy all of
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Information Server Question 1: What URL would you use in your computer’s browser to test the functionality of the intranet Web site you just created? 127.0.0.1 Question 2: What is the result‚ and what does the result indicate? The IIS 7 Web Page loads and it indicates that the intranet web site is working correctly. Question 3: What is the result‚ and what does it indicate? Success Intranet website can be accessed in both ways http://localhost/ or http:/127.0.0.1/ Question
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1. Which tool is better at performing protocol captures and which tool is better at performing protocol analysis? Net witness Investigator is best at performing protocol captures and Wireshark is better at performing protocol analysis. 2. What is promiscuous mode and how does this allow tcpdump‚ Wireshark‚ and Netwitness Investigator to perform protocol capture off a live network? “Promiscuous mode is a mode for a wired network interface controller (NIC) that causes the controller to pass all
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NT 1230 FINAL EXAM REVIEW 1. Library in windows 7 what is under there? my documents‚ pictures‚ music‚ videos. 2. What is used to run command lines in windows 7. powershell 3. which editions of windows 7 can be added to a domain? home starter basic and premium cannot be added. 4. what replaced the MS Dos boot disk? hint… pre installation environment Windows PE 5. a ______ is a series of folders. User Profile 6. what do you use to determine if your machine can be upgraded? Windows Upgrade
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Unit 7 Lab 7: Performing a Business Impact Analysis for an IT Infrastructure IS 3110 Debra Williams 1. What is the goal and purpose of a BIA? a. The purpose of a business impact analysis (BIA) report is to describe the potential risks specific to the organization studied. One of the basic assumptions behind BIA is that every component of the organization is reliant upon the continued functioning of every other component‚ but that some are more crucial than others and require a greater allocation
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Windows NT vs Unix As An Operating System In the late 1960s a combined project between researchers at MIT‚ Bell Labs and General Electric led to the design of a third generation of computer operating system known as MULTICS (MULTiplexed Information and Computing Service). It was envisaged as a computer utility‚ a machine that would support hundreds of simultaneous timesharing users. They envisaged one huge machine providing computing power for everyone in Boston. The idea that machines as powerful
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Lab 7: Catalysts Introduction Pre-Lab Questions 1. What is a catalyst? An enzyme is a biological catalyst that speeds up chemical reactions in the body. 2. If you continue to add more catalyst will the speed of a reaction always continue to increase? Explain your answer. It will continue to speed up the reaction until there is more catalyst than the limiting reactant. 3. In this lab you will produce oxygen and water from hydrogen peroxide (H2O2). Write a balanced reaction equation for this reaction
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