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Consider a hard disk with 16 recording surfaces (0-15) having 16384 cylinders (0-16383) and each cylinder contains 64 sectors (0-63). Data storage capacity in each sector is 512 bytes. Data are organized cylinder-wise and the addressing format is . A file of size 42797 KB is stored in the disk and the starting disk location of the file is <1200, 9, 40>. What is the cylinder number of the last sector of the file, if it is stored in a contiguous manner?
Consider a hard disk with 16 recording surfaces (0-15) having 16384 cylinders (0-16383) and each cylinder contains 64 sectors(0-63). Data storage capacity in each sector is 512 bytes. Data are organized cyclinder-wise and the addressing format is . A file of size 42797KB is stored in the disk and the starting disk location of the file is <1200,9,40>. What is cylinder number of the last sector of the file, if it is stored in a contiguous manner?
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested course of action logically follow (s) for pursuing. Statement: The India Risk Survey 2017 report ranks 'Information & Cyber Insecurity' as the biggest risk facing Indian companies. Indian organizations, both public and private, had witnessed over 27,000 incidents of security threat, from January 2017 till June 2017 alone. Phishing, scanning/probing, website intrusions and defacements, virus/malicious code, ransomware, Denial of Service attacks, and data breaches are some ways in which hackers attack business websites, which can cause operational disruptions and potentially steal sensitive information. Small and medium businesses (SMBs), unfortunately, have been seeing rising incidences of cybercrime. In fact, 70 percent of cyberattacks occur at organizations with lesser than 100 employees  Courses of action: I. Mandate basic security practices and policies for all employees, such as 2-factor authentication, internet use guidelines and create and enforce rules on handling and protecting sensitive data. Conduct frequent training to sensitize employees about opening suspicious emails, encrypting their data, using strong passwords on their devices, installing security apps, and limiting activity over public Wi-Fi. Implement and enforce incident reporting to help ensure that even the smallest breach is report to management as well as the IT teams. II. Basics still matter and are some of the best defenses against viruses, malware, and other online threats. Assess the assets that are most at risk - data, servers, network - and ensure that the systems are updated with the latest security software, web browser, and operating system. Implement firewall security and run antivirus software after each update.  III. Ensure regular backup of all critical data - whether stored in-house or on the cloud. Run scheduled attack drills and stress tests to identify vulnerabilities and ensure that data restoration and business continuity are executed as planned.
The disk system consists of which of the following? i. Disk ii. Disk drive iii. Disk controller
In a RAKE receiver, if the output from one correlator is corrupted by fading, all the other correlator’s output are also corrupted.
Study the following information carefully and answer the questions that follows. 5 persons Anil, Bhagat, Ishan, Deepak and Parmish use 5 different apps namely, WhatsApp, Instagram, Twitter, Facebook and LinkedIn. They all wear different brands of shoes namely, Adidas, Reebok, Nike, Puma and Vans. The person who wears Puma shoes does not uses Facebook. Parmish wear Nike shoes and uses LinkedIn app. Anil who wear Adidas shoes but neither uses Facebook nor Twitter. Ishan neither wear Vans nor Puma shoes but he uses Twitter app. The person who uses WhatsApp doesn’t wear Adidas shoes. Bhagat uses Facebook app. Deepak wear which shoes brand, and also determine who uses Instagram?
Consider the following statements: 1. Integral controller improves steady state response 2. By use of proportional controller, maximum peak overshoot decreases 3. Type and order of system reduces by one for derivative controller 4. Integral controller makes the system less stable in transient state due to oscillations Select the correct answer using the codes given below:
The process of dividing a disk into sectors that the disk controller can read and write, before a disk can store data is known as ____________
You are the administrator of Windows 2000 Server computer. Your computer has a span volume that consists of areas on three physical hard disks on the server. The three disks support hot swapping. You regularly backup the span volume by using windows backup. One of the disk fail, you replace the disk with a new un-partitioned disk. You want to recover the span volume and disk data as soon as possible. What should you do?
On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.     Initialize the address register     Initialize the count to 500 LOOP: Load a byte from device     Store in memory at address given by address register     Increment the address register     Decrement the count     If count! = 0 go to LOOP Assume that each statement in this program is equivalent to a machine instruction which takes one clock cycle to execute if it is a non-load/store instruction. The load-store instructions take two clock cycles to execute. The designer of the system also has an alternate approach of using the DMA controller to implement the same transfer. The DMA controller requires 20 clock cycles for initialization and other overheads. Each DMA transfer cycle takes two clock cycles to transfer one byte of data from the device to the memory. What is the approximate speedup when the DMA controller based design is used in place of the interrupt driven program based input-output?