31. Short-term scheduling (CPU scheduler) selects from among the processes that are ready to execute and allocates the CPU to one of them. Answer: T F 32. The algorithm of SCAN may cause starvation when schedule the servicing of disk I/O requests. Answer: F 33. If a resource-allocation graph does not have a cycle, while the system also may be in a deadlocked state. Answer: F 34. The mount protocol establishes the initial logical connection between a server and a client. Answer: T F 35. Virtual Memory involves the separation of logical memory as perceived by users from physical memory. T F Answer:

31. Short-term scheduling (CPU scheduler) selects from among the processes that are ready to execute and allocates the CPU to one of them. Answer: T F 32. The algorithm of SCAN may cause starvation when schedule the servicing of disk I/O requests. Answer: F 33. If a resource-allocation graph does not have a cycle, while the system also may be in a deadlocked state. Answer: F 34. The mount protocol establishes the initial logical connection between a server and a client. Answer: T F 35. Virtual Memory involves the separation of logical memory as perceived by users from physical memory. T F Answer:

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

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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

31. Short-term scheduling (CPU scheduler) selects from among the processes that are ready to
execute and allocates the CPU to one of them.
Answer:
F
32. The algorithm of SCAN may cause starvation when schedule the servicing of disk I/O requests.
Answer:
T
33. If a resource-allocation graph does not have a cycle, while the system also may be in a deadlocked
state.
T
F
Answer:
34. The mount protocol establishes the initial logical connection between a server and a client.
Answer:
T
F
35. Virtual Memory involves the separation of logical memory as perceived by users from physical
T
F
memory.
Answer:

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A Pregel worker: a) Contacts the master for a set of vertices that have not yet been processed in a given superstep and calls the Compute() method on each vertex. b) Is responsible for a single vertex of a graph, calling the Compute() method on that vertex if it is active. c) Is allocated a single partition and runs a thread for each vertex of a graph that loops calling a Compute() method as long as the vertex is active. d) Runs a thread for each partition of a graph, with each thread calling a Compute() method as it iterates through each active vertex.
Subject: Operating Systems
Suppose we have a byte-addressable computer with a cache that holds 16 blocks of 4 bytes address has 8 bits, to which cache set would the hexadecimal address OxBE map if the computer mapping? each. Assuming that each memory uses 2-way set associative
In Round Robin scheduling, when three processes have to enter the ready-queue at the same instant, if one process (A) has just finished 1/o, the other (B) has been pre-empted from CPU due to expiration of its time quantum and the third (C) has just started, which one will be inserted last (i.e. with lowest priority)? O The process that has just finished I/O. O One of the three will be randomly selected. O The process that has been pre-empted from CPU due to expiration of its time quantum. O The process that has just started.
posting multiple times strict action else skip
Please give me correct solution.