Nt1310 Unit 7

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RAID 1 is only required for two minimum disk drives to implement the mirroring with each other. It has high availability but no data protection. For example, if you delete a file in a mistake, this file also immediately removed from both mirrored disk storage. The same thing also happens if you disk is running by a virus or software bugs, it also can be done in both mirrored copies at the same time. If hackers attack the disk and enter into the disk for stealing the data, they can do both disks. There is no data protection for RAID 1. Therefore, RAID 1 is not a substitute for a backup.
3. Explain the process of data recovery in case of a drive failure in RAID 5.
RAID 5 is using parity technology with at least three disk drives for implementation. The parity technology is to use a bitwise XOR operation to calculate the missing data values when the data is missing in one data disk. The parity disk is recording the sum of the element in each row in data disk. Once the data disk has some data change, the parity disk has to recalculate the sum of the data disk values. The process of data recovery by RAID 5 is like this: when a drive failure, RAID 5 parity disk will calculate out the missing values-, and then Recovery the missing values from other data disks through the calculated results by parity disk.
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What are the benefits of using RAID 3 in a backup application?
RAID 3 is required minimum of three disk drives which combines strip disks and parity disk. All strip disks access with parallel process, which will write or read all data in the disks completely. The parity disk is for the sum of element values. RAID 3 can help large sequential data backup with a good performance and data protection by parallel and parity technology. The RAID 3 cost is moderate as

Nt1310 Unit 7

1. How does iSCSI handle the process of authentication? Research the available options? iSCSI follows the Challenge Handshake Authentication Protocol initially the initiator sends the request to the system and checks whether to begin the session or not. If the system is preoccupied with the requests, then it denies the request and replies the system is busy or else it allocates the session. iSCSI uses the Challenge Handshake Authentication Protocol and the user can log in using the CHAP user name…

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Nt1310 Unit 7

Section 7.1 Question 3 What information is contained in a routing table? A router is a device which connects multiple networks and assists in data transfer between different devices. This communication is achieved by forwarding data packets to the destination port using the information on the routing table. A routing table essentially stores information on how data packets travel in the network. This information is often viewed in a table format. Routing table contains destination-IP address, Network…

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Nt1310 Unit 7

Nicole Webb: Questions 1 & 2 Learning Outcome 3: Perform bank reconciliations to ensure company and bank records are correct This research is about bank reconciliation and how Bed and Breakfast Inn this process to ensure records are correct. Accountingcoach.com (2016) defined bank reconciliation as, "the process of comparing the amounts in the cash account in the general ledger to the amounts appearing on the bank statement. The objective is to be certain that there is consistency between the…

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Nt1310 Unit 7

Maryrose Steier ATS 113 1/25/2017 Chapter 1: • Explain why television newscasts have weather segments but not climate segments. • Weather changes on a day to day or even an hourly basis. People want to know whether it will be raining, very hot, or sunny and clear skies on a particular day so that they are prepared. Climate however changes very slowly, if it does at all. A climate broadcast would be unnecessary because they would be repeating the same thing for many days and even years.…

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Nt1310 Unit 7

Assignment Unit 5 University of the People Crystal Cummings Operating System I CS 2301 – 17.05.2018 1. Provide screen shot of resulting page after running the Process Explorer utility 2. Comment of your physical memory usage and list or highlight on screen shot 3. Comment of your kernel memory usage and list or highlight on screen shot 4. Comment of your paging and list or highlight on screen shot 5. Describe how this usage pattern changes when you start the program…

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Nt1310 Unit 7 Rtp

RTP is the protocol that supports the transport layer services for real-time applications. Each RTP packet contains a RTP header and a RTP payload that contains a small sample of the voice conversation. The size of the voice sample encapsulated within the RTP packet will depend on the CODEC used. The following diagram shows the RTP stack. Fig. 2.2. RTP stack RTP uses UDP as its basic transport protocol to avoid the retransmission of lost or dropped packets. So that a user would not experiences…

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Nt1310 Unit 7 Study Guide

Seven (7) Signs You're Ready to be an Online Student 1. You have excellent time management & organizational skills a. Many distractions can arise when listening to a lecture or completing exams outside of the traditional classroom. b. You’ll need to be diligent about when assignments are due and setting aside ample time to complete them. 2. You have a strong sense of independence a. Being able to independently seek out answers is an important skill. b. It’s important to be an independent learner…

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Nt1310 Unit 7 Pestle Analysis

5. Configure to deliver In the organisation, all the hardware or software requires system or network hardening in order to be truly secured. This can be established by disabling non-required system services, to renaming access accounts and resetting passwords. Any organisation network without a properly configured IPS or firewall is an insecure network. In many instances wherein poorly implemented products have been disabled or ignored, after admins got tired of the false positive warnings. Understanding…

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Nt1310 Unit 7 Lab 1.5

6. FRC Connector. 11 7. RS232 header. 7. DC to DC Converter (29302WU IC). 8. ESD Protection enabled. 9. SIM900A stack on header. 10. Stub antenna with SMA connector. 11. General GPIO SIM90 1. Features: • Dual-Band GSM/GPRS 900/ 1800 MHz • RS232 interface for direct communication…

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Nt1310 Unit 7 Lab 7.1

• Lets for example assume a button in an activity which used to start another activity. A unit test would determine if the corresponding intent was issued, not if the second activity was started. The functional test would also check of the activity was correctly started. ¬ Integration Test • Integration tests are designed to test the way individual components work jointly. Modules that have been unit tested independently are now combined together to test the integration. • Usually web based activities…

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