Similar to Figure 5-24 on page 380, if the new requests come in for cylinders 20, 33, 8, and 13 while the seek to cylinder 11 is in progress, what are the tot cylinders the disk arm should move to fulfill all the requests based on the SSF (Shortest Seek First) algorithm? (Chapter 5) 46 36 O 26 O56 ONone of the other answers

Similar to Figure 5-24 on page 380, if the new requests come in for cylinders 20, 33, 8, and 13 while the seek to cylinder 11 is in progress, what are the tot cylinders the disk arm should move to fulfill all the requests based on the SSF (Shortest Seek First) algorithm? (Chapter 5) 46 36 O 26 O56 ONone of the other answers

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

See similar textbooks

Related questions

Q: Suppose that a disk drive has 5,000 cylinders, numbered 0 to 4,999. The drive is currently serving…

A: Solution: The queue of pending requests, in FIFO order, is: 2,069 1,212 2,296 2,800 544 1,618 356…

Q: A processor has a 32 byte memory and an 8 byte direct-mapped cache. Table 0 shows the current state…

A: Our guidelines is answer the first question and remaining question submit the in the next question.…

Q: Write down the difference between external and internal fragmentation. Given memory partitions of…

A: Note: There are multiple questions are given in one question. According to the rule, you will get…

Q: Consider a disk sequence with 100 cylinders. The request to access the cylinder occur in the…

A: Given: To solve disk scheduling problem.

Q: Under a modified version of the timestamp protocol, we require that a commit bit be tested to see…

A: Utilizing the commit bit, the read request is created to wait when the transaction that wrote the…

Q: nsider the following scenario: ere are outstanding I/0 requests for blocks on the following…

A: In SCAN algorithm, all the request will be satisfied which are in direction of movement of head.…

Q: The parity function is a very simple hash function producing a one-bit digest, which is 0 if the…

A: Hamming code is a bunch of error detection codes that can be utilized to distinguish and address the…

Q: (e) A file is protected by a random password consisting of n binary bits. All password combinations…

A: Answer: We need to write the what how many bits should be specified so we will see in the more…

Q: For the SIC/XE dump A=000000 X=000005 L=000000 B=000005 S=FFFFFF T=FFFFFF P=00000D CC=LT 01A0…

A: Answer: Our instruction is answer the first three part from the first part and . I have given…

Q: For Heap File with a page directory, assume that a page can contain up to 100 directory entries and…

A: Given Statement: In this question firstly we will find out what is already given in our question.…

Q: For the following buffer pool, using the LRU replacement heuristic, show the disk block ID of the…

A: According to the information given:- We have to following buffer pool, using the LRU replacement…

Q: Calculate the number of disk tracks traversed using the SSTF algorithms for the series of disk track…

A: Given: Calculate the number of disk tracks traversed using the SSTF algorithms for the series of…

Question

Similar to Figure 5-24 on page 380, if the new requests come in for cylinders 5,
20, 33, 8, and 13 while the seek to cylinder 11 is in progress, what are the total
cylinders the disk arm should move to fulfill all the requests based on the SSF
(Shortest Seek First) algorithm? (Chapter 5)
46
36
O26
56
None of the other answers

To allow a process to request and then to hold a single resource at a time is one of
the strategies in (Chapter 6)
O deadlock avoidance
deadlock prevention
deadlock detection
deadlock recovery

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Calculate the number of disk tracks traversed using the FCFS algorithms for the series of disk track service requests given as 54,36,21,74,46,35,26,67. At the time the first request arrives in the disk request queue, the read/write head is at track 50, moving toward the outer (lower-numbered)tracks. Draw the graph of the movement. Assume that the disk has 100 tracks from 0 to 99.
Suppose that a disk drive has 200 cylinders, numbered 0 to 199. The drive is currently serving a request at cylinder 53. The queue of request is kept in the FIFO order: 98, 183, 37, 122, 14, 124, 65, and 67 What is the total number of head movements needed to satisfy these requests for the following SSTF disk-scheduling algorithm? O a. 640 O b. 720 OC. 540 O d. 236
Perl Programming Find thenumber of files with their names with size greater than 2 Kbytes for two directories.
Suppose that we want to schedule disk requests on a disk containing 200 cylinders numbered from 0 to 199. The Disk requests to be addressed are 82,170,43,140,24,16,189. And the Read/Write arm is at 48, and it is also given that the disk arm should move "towards the larger value". Q₁- Illustrate on a graph the total read/write head movement for the SCAN Disk scheduling algorithm. Q2- Calculate the total overhead movement (total distance covered by the disk arm).
Devise an efficient divide-and-conquer algorithm for the Towers of Hanoi problem when the disks are colored alternately red and blue, and we add the extra rule that no disk may be placed on any other disk of the same color.
Describe the working of recursive and iterative queries in DNS. Use figures for the description. A file of F = 3 x 105 bits is distributed to N peers. The server has an upload rate of us = 1 x 105 bps. Each peer has a download rate of di = 1 x 105 bps and an upload rate of u = 30,000 bps. For N = 1 to 10, and for both client-server and P2P architectures, plot a single graph with minimum distribution time on the y-axis and N on the x-axis. Use a table to show all the values for N = 1 to 10 and use the values to plot the graph. Clearly show the calculation only for N = 1, 2, and 3. Explain at least one P2P application (BitTorrent or DHT) in detail.
Consider a disk subjected to I/O requests arriving (following Poisson distribution) at an average rate of requests/second. Assume that on average, there were 5 requests waiting for service in the queue and that each request waits in the queue for about 10 milliseconds, on average. What is the effective arrival rate for this disk?
Requests are not usually uniformly distributed. For example, a cylinder containing the file system FAT or inodes can be expected to be accessed more frequently than a cylinder that only contains files. Suppose you know that 50 percent of the requests are for a small, fixed number of cylinders. a. Would any of the scheduling algorithms discussed in this chapter be particularly good for this case? Explain your answer. b. Propose a disk-scheduling algorithm that gives even better performance by taking advantage of this "hot spot" on the disk. c. File systems typically find data blocks via an indirection table, such as a FAT in DOS or inodes in UNIX. Describe one or more ways to take advantage of this indirection to improve the disk performance.