...NT1230 Unit 2 Disk Redundancy 1. RAID stands for Redundant Array of Independent Disks. A way of logically putting multiple disks together into a single array, getting more reliability and faster capabilities. 2. Use RAID if redundancy and reliability are important. If there are problems with your computer RAID will give you more throughputs enabling you to read and write data from multiple drives instead of one. 3. A. RAID 0: Known as stripping. Where data is stored across any number of disks. You can have from two (2) to thirty two (32) physical disks. If one disk fails, all information is lost. There is no redundancy. B. RAID 1: Known as mirroring. Data is written identically across all drives in the array. Used mainly for redundancy. No data will be lost if a drive fails. You must have two (2) disks. C. RAID 5: Data is split over three or more discs, in a way that protects the data if any of the discs fail. Parity is stored on all of the discs in the drive array, which means that if one disc fails, you won't lose all of your information. Reading is faster since the data has more drives to read from. Writing is a downfall due to the fact that the data has to be compared and processed in order to create the parity. Must have 3 disk minimum and from 8 to 16 maximum. D. RAID 6: Is like RAID 5 with the stripping and parity across the array of disks but adds a second set of parity information for each block of data. Level-6 requires a minimum of four drives...
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...1. What does RAID stand for? Redundant Array of Inexpensive Disks 2. When would we use RAID? RAID allows you to survive a drive loss without data loss and in many cases without any downtime. RAID is also useful if you are having disk IO issues, where applications are waiting on the disk to perform tasks. Going with RAID will provide you additional throughput by allowing you to read and write data from multiple drives instead of a single drive. 3. Define the following types of RAID: RAID 0: Striped Set -- Setup splits data evenly across two or more disks. It is important to note that RAID 0 was not one of the original RAID levels, and is not redundant. If one drive goes down your server will need to be restored from backup. RAID 1: Mirrored Set -- Setup creates an exact copy (or mirror) of data on two or more disks. A typical setup just has two drives that are setup to mirror data. If one drive goes down your server will still be functional until a scheduled drive replacement can be installed. RAID 5: Striped Set with Parity -- Setup uses block-level striping with parity data distributed across all disks in the RAID Array. This means you can have one drive fail and your server will remain functional until a scheduled drive replacement can be installed. RAID 5 also increases read/write speeds while using the available disk space efficiently. RAID 6: Second parity stripe -- The purpose of doing all of the extra math to support this dual parity is that the...
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...------------------------------------------------- NT1230 ------------------------------------------------- Client-Server Networking I ------------------------------------------------- Homework Assignments Name: Ernani Narag Week 6 Homework: Due Week 7 Assignment 1: Ticket Escalation Assignment Requirements Respond to the following email, making recommended solutions and explaining the rationale for your recommendations: ---- FROM: Manager TO: Systems Administrator RE: Support Prioritization I am receiving complaints from department supervisors that their support issues are not being addressed in a timely manner. We need a ticket escalation policy to ensure business priorities are met, while managing end-user expectations. Please draft a policy describing how support requests will be prioritized. In addition to normal troubleshooting prioritization, please address the following departments: customer service, sales, accounting and marketing, prioritized in that order. How can we better manage these business requirements? ---- Submission Requirements Address all of the concerns of the manager and provide a recommendation. Microsoft Word. 1-2 pages. Self-Assessment Checklist I made recommendations to address all of the concerns in the email. | * | I explained my reasoning. | * | I composed a professional response. | * | I used critical thinking. | * | I have followed the submission requirements:File Format: Microsoft...
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...ITT Technical Institute NT1230 Client-Server Networking I Onsite Course SYLLABUS Credit hours: 4.5 Contact/Instructional hours: 56 (34 Theory Hours, 22 Lab Hours) Prerequisite(s) and/or Corequisite(s): Prerequisite or Corerequisite: NT1210 Introduction to Networking or equivalent Course Description: This course introduces operating principles for the client-server based networking systems. Students will examine processes and procedures involving the installation, configuration, maintanence, troublshooting and routine adminstrative tasks of popular desktop operating system(s) for standalone and network client computers, and related aspects of typical network server functions. Client-Server Networking I Syllabus Where Does This Course Belong? 1st QTR GS1140 NT1110 GS1145 Problem Solving Theory Computer Structure and Logic Strategies for the Technical Professional 2nd QTR NT1210 Introduction to Networking NT1230 Client-Server Networking I MA1210 College Mathematics I 3rd QTR NT1310 NT1330 MA1310 4th QTR PT1420 NT1430 EN1320 5th QTR PT2520 NT2580 EN1420 6th QTR NT2640 NT2670 CO2520 7th QTR NT2799 SP2750 Physical Networking Client-Server Networking II College Mathematics II Introduction to Programming Linux Networking Composition I Database Concepts Introduction to Information Security Composition II IP Networking Email and Web Services Communications Network Systems Administration Capstone Project Group Theory The follow diagram indicates how this course...
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...Kenneth D.Roop NT1230 Client-Server Unit 7 Assignment 1: Client Server Configuration The Acme Engineering Company is setting up a new soil analysis office in Figmont, Nebraska. This office will employ about 20 people. They will be doing soil analysis and mapping the information to a Geographical Information System database. What kind of Client-Server configuration would you recommend and why? What functions or services would this server supply? The Soil Survey Geographic (SSURGO) database portrays data about the sorts of soils and appropriation of soils on the scene. This information set is a computerized soil review and by and large is the most itemized level of soil geographic information accessible. It comprises of a referenced advanced...
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...the Windows environment. Windows Security Syllabus Where Does This Course Belong? This course is required for the Bachelor of Science in Information Systems Security program. This program covers the following core areas: Foundational Courses Technical Courses BSISS Project The following diagram demonstrates how this course fits in the program: IS4799 NT2799 IS4670 ISC Capstone Project Capstone ProjectCybercrime Forensics NSA NT2580 NT2670 Introduction to Information Security IS4680 IS4560 NT2580 NT2670 Email and Web Services Hacking and Introduction to Security Auditing for Compliance Countermeasures Information Security Email and Web Services NT1230 NT1330 Client-Server Client-Server Networking I Networking II IS3230 IS3350 NT1230 NT1330 Issues Client-Server Client-Server SecurityContext in Legal Access Security Networking I Networking II NT1110 NT1210 Structure and Introduction to ComputerLogic Networking IS3120 IS3110 NT1210 Network Risk Management in Introduction to General Education / General Studies NT2580 NT2799 Communications Information Technology Introduction to Information Security NSANetworking Capstone Project IS4550 NT2640 Security Policies and Implementation IP NT2640 Networking IP Networking PT2520...
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...NT1230 Unit 3. Assignment 1. Ipv6 Addressing 1. A. American Registry for Internet Numbers (ARIN)- Provides services involving technical coordination and management of internet number resources. They support the internet through the management of internet number resources and coordinates the development of policies for the management of IP number resources. They also provide services for technical coordination and management of internet number resources in its respective services region. The services include IP address space allocation and ASN allocation, transfer and record maintenance. B. Internet Assigned Numbers Authority (IANA)- Responsible for the allocation of globally unique names and numbers that are used in Internet protocols that are published as RFC documents and for coordinating some of the key components that keep the internet running efficiently. They allocate and maintain unique codes and numbering systems that are used in the technical standards/protocols that drive the internet. Among such protocols are the domain names, number resources and Protocol assignments. C. Asia-Pacific Network Information Center (APNIC)- An organization that manages the internet number resources within Asia. They provide the number resource allocation and registration services that support the global operation of the internet. 2. An Ipv4 uses 32 bit IP addresses. The max number of of IPv4 addresses is about 4 billion. 3.The max number of Ipv6 addresses is about 48 billion...
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...Unit 3 Assignment: IPv6 Addressing Cuneo, Thomas / NT1230 4-5-13 Research the following organizations and explain their involvement with the internet public IP addresses. a. American Registry for Internet Numbers (ARIN): The non-profit corporation responsible for managing internet number resources (IPv4 and IPv6 addresses). The need for this organization is due to the internet addresses being unique and limited there is a need for some control and allocate address number blocks. b. Internet Assigned Numbers Authority (IANA): This entity oversees global IP address location, autonomous system number location, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol related symbols and numbers. This department is also operated by the Internet Corporation for Assigned Names and Numbers (ICANN). c. Asia Pacific Network Information Center (APNIC): Organization that manages the assignment of the Internet number resources within the Asian continent. They also set the rules and regulations/standards that all designated organizations must abide by and implement. One of their purposes is to provide standard-based inter-networking methods for IPv4 and IPv6 across such networks as Ethernet and so forth. 1. How many IPv4 addresses are possible? There are approx. 4,294,967,295 (4.3 billion) 2. How many IPv6 addresses are possible? There are about 3.4x10^38 (18 quintillion) 3. Why do you think the world is running out of IPv4 addresses? Because...
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...NT1230 Unit 2. Assignment 1 Disk Redundancy Research 1. What does RAID stand for? Redundant Array of Inexpensive Disk 2. When would we use RAID? When you have a vast amount of data to need to be backup or to improve speed of the system. 3. Define the following types of RAID: a. RAID 0: Splits data evenly across two or more disks (striped) without parity information for speed. RAID 0 was not one of the original RAID levels and provides no data redundancy. RAID 0 is normally used to increase performance, although it can also be used as a way to create a large logical disk out of two or more physical ones. b. RAID 1: An exact copy (or mirror) of a set of data on two disks. This is useful when read performance or reliability is more important than data storage capacity. Such an array can only be as big as the smallest member disk. c. RAID 5: Comprises block-level striping with distributed parity. Unlike in RAID 4, parity information is distributed among the drives. It requires that all drives but one be present to operate. Upon failure of a single drive, subsequent reads can be calculated from the distributed parity such that no data is lost. RAID 5 requires at least three disks. d. RAID 6: Extends RAID 5 by adding an additional parity block; thus it uses block-level striping with two parity blocks distributed across all member disks. 4. Why is RAID 0 of any use if it offers no redundancy? It splits data evenly across two or more disks (striped) without parity information...
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...NT1230 Unit 2. Assignment 1. Disk Redundancy Research 1. What does RAID stand for? Redundant Array of Independent Disk 2. When would we use Raid? To divide and replicate data into physical drives. 3. Define the following types of RAID: a. RAID 0-is simply data striped over several disks. This gives a performance advantage, as it is possible to read parts of a file in parallel. However not only is there no data protection, it is actually less reliable than a single disk, as all the data is lost if a single disk in the array stripe fails. b. RAID 1-is data mirroring. Two copies of the data are held on two physical disks, and the data is always identical. RAID1 has a performance advantage, as reads can come from either disk, and is simple to implement. However, it is expensive, as twice as many disks are needed to store the data. c. RAID 5-data is written in blocks onto data disks, and parity is generated and rotated around the data disks. Good general performance, and reasonably cheap to implement. Used extensively for general data. d. RAID 6-is growing in popularity as it is seen as the best way to guarantee data integrity as it uses double parity. It was originally used in SUN V2X devices, where there are a lot of disks in a RAID array, and so a higher chance of multiple failures. RAID6 as implemented by SUN does not have a write overhead, as the data is always written out to a different block. 4. Why is RAID 0 of any use if it offers no redundancy? Fast performs and...
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...Stephanie McFadden NT1230 Unit 8 Assignment 1 The Just Legal Company in Figmont, Nebraska has acquired a new internet address - www.justafigmont.com. They want to set up a DNS server. What would a basic DNS file look like? Describe the file. The DNS or (Domain Name System) names the number mappings on your computer. For example www.justfigmont.com could be the number 160.92.3.6. This is achieved through the DNS. The DNS is a hierarchy. There are a small number of root domain name servers that are responsible for tracking the top level domains and who are under them. The root domain servers between them know about all the people who have name servers that are authoritative for domains under the root. A basic DNS file may look like this: C:\>nslookup Default Server: vnsc-bak.sys.gtei.net Address: 4.2.2.2 > set type=mx > bellcs.com Server: vnsc-bak.sys.gtei.net Address: 4.2.2.2 Non-authoritative answer: bellcs.com MX preference = 0, mail exchanger = bellcs.com bellcs.com nameserver = ns2.server766.net bellcs.com nameserver = ns.server766.net bellcs.com internet address = 66.78.26.7 "Setting up a Basic DNS Server for a Domain." Setting up a Basic DNS Server for a Domain. N.p., n.d. Web. 07 Aug. 2015. "Learn Exchange Server 2000: Setting Up DNS for Internet Access." RSS. N.p., n.d. Web. 07 Aug. 2015. Unit 8 Assignment 2 What benefits do you see in moving an organization to an Active Directory environment? Four Benefits of Moving...
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...NT1230 cLIENT-sERVER NETWORKING 1 | UNIT 2 ASSIGNMENT 1 | DISK REDUNDANCY RESEARCH | | Joseph Balcazar (13383477) | 6/27/2015 | Using the internet and the ITT-Tech Library, research the following questions and provide your thoughts on each one . Submit your answers in a Word Document and cite any resources in A.P.A format | 1.What does R.A.I.D stand for? R.A.I.D stands for Redundant Array of Inexpensive Disks 2.When would we use RAID? We would use RAID in file server and data storage where access speed with a minimal lost of data and reliability is crucial for example a web store 3.Define the following types of RAID: a. RAID0 Disk Striping offering no redundancy and is written across multiple drives increasing drive performance b. RAID1 duplicates entire contents of drive1 on a second drive so if the primary drive fails there’s a backup of the primary on a secondary disk minimizing downtime of drive c. RAID5 Spreads data across multiple drives evenly giving server or website higher drive data reliability and higher drive storage capacity d.RAID6 RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID set before any data is lost. 4.Why is RAID0 of any use if it doesn’t offer any redundancy ? RAID0 is usedwhere drive performance is more important that security of data for example a gaming computer. 5 Why do u think RAID1 can be the most expensive? Why would people utilize it if so costly? RAID1...
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...Student Name: Justin Hennings Date Due: November 24, 2013 Date Submitted: November 24, 2013 Instructor: L. Chretien Subject: NT1230 Unit 10 Exercise 1 – Backup Plan How Grade: One hundred points total. Submission Requirements * Write a response to the email below by recommending solutions and explaining the rationale for your recommendations. * This is not a group project. All rules of plagiarism apply. * Cite your sources and references. * Include introductory and concluding paragraphs. Assignment Requirements Respond to the following email: -- FROM: Rebop Pakulah, Acme Engineering Company RE: Burning Smell in the server room in the US office. Hello most esteemed US computer guru, While visiting the US Office I noticed that there was a somewhat disconcerting smell in the server room. It reminded me of my uncle's cooking – somewhat burnt. I am concerned that the employees are not being responsible and having too many of their barbecue parties since we turned off their streaming Internet music to their cubicles. They swear by the Curley's barbecue sauce but I am not a fan. We are using tape backup in the server room. Could the barbecue smoke affect the tapes? I am concerned because all of our backup tapes are kept in that room. What would you suggest to take make sure the tapes are not affected by the smoke? Thank you again for you kind attention to this matter. Yours truly, Rebop Pakulah ---- Self-Assessment Checklist ...
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...NT1230 1/1/16 Unit 2 Assignment 1 Disk Redundancy Research RAID stands for redundant array of independent disks and is a data storage virtualization technology that combines multiple physical drives into a single logical unit for the purpose of backing up vital data, improving system performance, or both. It’s most useful for businesses because they usually network terminals that all pull from a central server with everything stored on it. RAID is used to allow for a seamless replacement of defective drives or swapping full drives for empty ones without hassle of having to reboot. There are four types of raid that are going to be discussed and there is also a difference between hardware RAID and software RAID. Software RAID is just software that runs on your operating system, hardware RAID uses a modified chip as a controller and assists the software for operating systems that software RAID is incompatible with. RAID 0 consists of striping, without mirroring or parity. The capacity of a RAID 0 volume is the sum of the capacities of the disks in the set, the same as with a spanned volume. There is no added redundancy for handling disk failures, just as with a spanned volume. Thus, failure of one disk causes the loss of the entire volume, with reduced possibilities of data recovery when compared to a broken spanned volume. Striping distributes the contents of files roughly equally among all disks in the set, which makes concurrent read or write operations on the multiple disks...
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...STUDENT COPY The following sections contain student copies of the assignments that must be distributed to students at least two weeks prior to the due dates for those assignments. Online students will have access to those documents in PDF format available for downloading at any time during the course. ------------------------------------------------- Graded Assignment Requirements Assignment Requirements documents provided below must be printed and distributed to students as the guidance for completing the assignments and submitting them for grading. Instructors must remind students to retain all handouts and assignment documents issued in every unit, as well as student-prepared documentation and graded deliverables. Some or all these documents will be used repeatedly across different units. Unit 1. Lab 1. Preparing a Virtual Workstation Image Windows 7 Virtual Machine “Keyless” Installation and Re-arm Process Purpose: This section describes the reason for and the procedure to use the “keyless” installation for Windows 7 Professional applicable to our lab environment for IT109/NT1230, and to use the “Re-arm” procedure to extend the trial period to meet our curriculum needs. Background: In installing Windows 7 Professional into a virtual machine in the VMware Player for the labs in our lab environment, if the Product Key for Windows 7 Professional is applied and activated during or at the end of the installation, the installed virtual machine will be authorized...
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