Consider the following snapshot of a system:                        Allocation             Max              Available                         A B C D            A B C D            A B C D T0                3 1 4 1              6 4 7 3              2 2 2 4 T1                2 1 0 2              4 2 3 2 T2                2 4 1 3              2 5 3 3 T3                4 1 1 0              6 3 3 2 T4                2 2 2 1              5 6 7 5   Answer the following questions using the banker’s algorithm: Illustrate that the system is in a safe state by demonstrating an order in which the threads may complete.   If a request from thread T4 arrives for (2, 2, 2, 4), can the request be granted immediately?   If a request from thread T2 arrives for (0, 1, 1, 0), can the request be granted immediately?   If a request from thread T3 arrives for (2, 2, 1, 2), can the request be granted immediately?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
Question
100%

Consider the following snapshot of a system:


                       Allocation             Max              Available
                        A B C D            A B C D            A B C D


T0                3 1 4 1              6 4 7 3              2 2 2 4
T1                2 1 0 2              4 2 3 2
T2                2 4 1 3              2 5 3 3
T3                4 1 1 0              6 3 3 2
T4                2 2 2 1              5 6 7 5

 

Answer the following questions using the banker’s algorithm:

  1. Illustrate that the system is in a safe state by demonstrating an
    order in which the threads may complete.

 

  1. If a request from thread T4 arrives for (2, 2, 2, 4), can the request be
    granted immediately?

 

  1. If a request from thread T2 arrives for (0, 1, 1, 0), can the request be
    granted immediately?

 

  1. If a request from thread T3 arrives for (2, 2, 1, 2), can the request be
    granted immediately?

 

 

 

 

 

 

 

 

Given six memory partitions of 100 MB, 170 MB, 40 MB, 205 MB, 300 MB,

and 185 MB (in order), how would the first-fit, best-fit, and worst-fit algorithms place processes of size 200 MB, 15 MB, 185 MB, 75 MB, 175 MB, and 80 MB (in order)? Indicate which—if any—requests cannot be satisfied. Comment on how efficiently each of the algorithms manages memory.

 

 

Compare the memory organization schemes of contiguous memory allocation and paging with respect to the following issues:

 

  1. External fragmentation
  2. Internal fragmentation
  3. Ability to share code across processes

 

 

 

Apply the (1) FIFO, (2) LRU, and (3) optimal (OPT) replacement algorithms for the following page-reference strings:

 

  • 2, 6, 9, 2, 4, 2, 1, 7, 3, 0, 5, 2, 1, 2, 9, 5, 7, 3, 8, 5

        

  • 0, 6, 3, 0, 2, 6, 3, 5, 2, 4, 1, 3, 0, 6, 1, 4, 2, 3, 5, 7

 

  • 3, 1, 4, 2, 5, 4, 1, 3, 5, 2, 0, 1, 1, 0, 2, 3, 4, 5, 0, 1

 

  • 4, 2, 1, 7, 9, 8, 3, 5, 2, 6, 8, 1, 0, 7, 2, 4, 1, 3, 5, 8

 

  • 0, 1, 2, 3, 4, 4, 3, 2, 1, 0, 0, 1, 2, 3, 4, 4, 3, 2, 1, 0

 

Indicate the number of page faults for each algorithm assuming demand paging with three frames.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Encryption and decryption
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education

Expert Answers to Latest Homework Questions

Q: Refer to page 3 for replication strategies in HDFS. Instructions: 1. Analyze the link to understand…
Q: Refer to page 2 for an introduction to TCP/IP protocols. Instructions: 1. 2. 3. Analyze the link to…
Q: Refer to page 1 for an overview of HDFS architecture. Instructions: 1. Analyze the basic HDFS…
Q: Refer to page 515 for load balancing algorithms. Instructions: 1. Analyze the link to understand…
Q: Networking: Load Balancers Refer to page 515 for load balancing algorithms. Instructions: 1. Analyze…
Q: Big Data: Scalability Refer to page 514 for scaling HDFS clusters. Instructions: 1. Analyze the…
Q: Networking: DHCP Analysis Refer to page 513 for DHCP traffic inspection. Instructions: 1. 2. 3.…
Q: 15 Big Data: Metadata Management Refer to page 512 for HDFS metadata storage. Instructions: 1.…
Q: Networking: NAT and Port Forwarding Refer to page 511 for NAT configuration details. Instructions:…
Q: 1 Big Data: Data Tiering Refer to page 510 for HDFS data tiering strategies. Instructions: 1.…
Q: 1 2 Networking: QoS Analysis Refer to page 509 for Quality of Service (QoS) in networks.…
Q: Big Data: Access Patterns Refer to page 508 for analyzing HDFS access patterns. Instructions: 1.…
Q: Networking: IPv6 Features Refer to page 507 for IPv6 packet analysis. Instructions: 1. 2. Analyze…
Q: Big Data: Fault Tolerance Refer to page 506 for recovery mechanisms in HDFS. Instructions: 1.…
Q: Networking: DNS Analysis Refer to page 505 for DNS queries and responses. Instructions: 1. 2. 3. B…
Q: 7 Big Big Data: Data Balancing Refer to page 504 for load balancing in HDFS. Instructions: 1.…
Q: Networking: Secure Protocols Refer to page 501 for SSL/TLS configurations. Instructions: 1. Analyze…
Q: Big Data: File System Security Refer to page 500 for securing HDFS configurations. Instructions: 1.…
Q: Refer to page 393 for sample SQL queries and execution plans. Instructions: • Analyze the query…
Q: Refer to page 394 for a description of a cryptographic protocol. Instructions: • Examine the…
Q: Refer to page 395 for a distributed system setup and failure scenarios. Instructions: • • Evaluate…