Consider a distributed system with two sites, A and B. Can site Adistinguish among the following?B goes down.The link between A and B goes down.B is extremely overloaded and response time is 100 timeslonger than normal.What implications does your answer have for recovery indistributed systems?

Answered: Image /qna-images/answer/8255b524-2335-4061-b71b-f35beeaf5f3d.jpg

Consider a distributed system with two sites, A and B. Can site A distinguish among the following? B goes down. The link between A and B goes B is extremely overloaded and response time is 100 times longer than normal. down.

Consider a distributed system with two sites, A and B. Can site A distinguish among the following? B goes down. The link between A and B goes B is extremely overloaded and response time is 100 times longer than normal. down.

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

See similar textbooks

Related questions

Q: Since the late 1990s, machine learning (ML) has been applied to automate the process of building…

A: Machine Learning: It's a branch of AI focused on the premise that computers can analyze data,…

Q: Given a system where the login password is made in the form + . And a computer that can test 1000…

A: Brute force is a cryptographic hack that depends on speculating potential blends of a focused…

Q: computer system with three users: Alice, Bob, and Cindy. Alice owns file X, and Bob and Cindy can…

A: The question is asking to:Create an Access Control Matrix (ACM) for a computer system with three…

Q: Develop a performance-testing client that takes an int value T from the command line and performs T…

A: To develop the performance-testing client, you can use the following steps: Parse the command-line…

Q: 5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network below, and suppose…

A: Bellman Ford Algorithm is a distance-vector routing algorithm that works by distributing the…

Q: 3. Consider the M/M/1 queue discussed in class. Assume that packets arrive to a queue with average…

A: The anwer is given below:-

Q: Let’s consider the operation of a learning switch in the context of a network in which 6 nodes…

A: The answer is in step 2:

Q: Simulate any rounting algorithm for MANET.

A: ANSWER: Routing Algorithm for MANET TORA is a steering calculation and is predominantly utilized in…

Q: Considering two processes Pi and Pj , there can be two cases: Case 1: Pi and Pj are not concurrently…

A: The Algorithm• Initial local state for process Pi- int My_Sequence_Numberi=0- array of boolean…

Q: Consider a distributed system with two sites, A and B. Consider whether site A can distinguish among…

Q: uppose that a networked application distributes autonomous synthetic players to the participating…

Q: In a LSTM network, there are three gates: forget, input and output. Suppose, you are try to forecast…

A: Sol: Given three gates forget, input and output In LSTM first layer called input and first to next…

Q: Suppose you were allowed to add a single edge to the given network, connecting one of nodes c or d…

A: Answer:)

Q: Exercise 2: We have two lists of the same length representing sensors data. The second sensor is…

A: CODE: # list 1 datasensor1_list=[]# list 2 datasensor2_list=[] no=int(input("Enter how many values…

Q: You are given a 3 process (p0, p1, and p2) distributed system that uses Ricart and Agrawala's…

A: Ricart Agarwala algorithm: This algorithm follows permission based approach to ensure mutual…

Q: Consider a network that is a rooted tree, with the root as its source, the leaves as its sinks, and…

A: For this question, We will take benefit of Recursive Structure of a rooted tree, an efficient…

Q: Consider a world on which each individual belongs to a family of six, each family resides in its own…

A: Ask: Would the postal service ever have to open the envelope and inspect the letter and include the…

Q: System Analysis and Design BRACU-Crawler is a pilot project designed to crawl BD sites only. First,…

A: The structure chart is defined as the theory or the organizational chart for the particular system…

Q: this is python programming, can you guys add comments in every line so I can understand it. 2…

A: Complete Well Commented Python Program is given below:

Q: 9. Find out what performance monitoring facilities are available on the com- puter system that you…

A: In questions with many questions, we must solve the first one.

Q: (a) Suppose a server S and client C are connected over the Internet. The one-way prop- agation delay…

A: Here is the solution with an explanation:-

Q: Collision A B

A: The problem describes is that the signals transmitted from stations A and C sent separately to…

Q: Can someone help me with the following, it's revision for an exam I'm doing. If your explaining it…

A: So here we have to calculate median time between request and here we are using Weibull…

Q: We are training a fully connected network with two hidden layers to predict housing prices. Inputs…

A: Given - Inputs-100 dimensional First hidden layer =1000 activations. Second hidden layer =10…

Q: Consider a distributed system in which A is a TOP SECRET process running on machine Alice and B is a…

A: Answer: I have given answered in the brief explanation

Q: Use UML to model the following scenario: A water purification plant is identified by its name and…

A: The name of the plant can change but its ID cannot. Each plant purifies water but has a number of…

Q: It is a commmon understanding that waiting lines can be of different types. For example, one such…

A: Dear Student, We know that SQMS is superior to MQMS . Also the average waiting time in single…

Q: On a toll road, there are 5 lanes for drivers to pay their toll. Customer arrival times are random,…

A: Solution:: The customer arrival times are random, with a general independent distribution, so the…

Q: Suppose we have n+m servers, of which nn have Intel CPUs and mm have AMD CPUs. Suppose also that…

A: Explanation: The total server we have is (n+m)X: The server will crash after ping P[x]=nn+mP[…

Q: You develop a system composed of many components and would like to minimise the average distance in…

A: Introduction: A regular network is defined as a random network where each of the nodes is a…

Q: Consider a world on which each individual belongs to a family of six, each family resides in its own…

A: This question from the subject of Computer networks and gives an idea that how we develop a protocol…

Q: What is a Deadlock? How it is detected? What are the necessary conditions for a deadlock to occur?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: To balance the burden, suppose a networked application distributes autonomous synthetic players to…

A: Introduction: The use of autonomous synthetic players in a networked application can help balance…

Q: 5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network below, and suppose…

A: Bellman Ford Algorithm is a distance-vector routing algorithm that works by distributing the…

Q: Give the configuration after applying the appropriate transition function, using the symbols a, b,…

A: The answer is given below:

Q: Consider a disk queue with requests for I/O to blocks on cylinders 47, 38, 121, 191, 87, 11, 92, 10.…

A: Given that blocks on cylinders 47, 38, 121, 191, 87, 11, 92, 10. And initial cylinder number is 63.

Q: 3. Consider the M/M/1 queue discussed in class. Assume that packets arrive to a queue with average…

A: As per guidlines we are allowed to answer only first question.For more answer please post them…

Q: Suppose we have four machines that are using the Berkeley algorithm for clock synchronization. The…

A: Solution:-- 1)The given question is an type of the multiple choice question as 4 options have been…

Q: Describe how Lamport's approach, when used in distributed systems, keeps a global state under check.

A: An approach known as Lamport's algorithm will demonstrate that obtaining a distributed snapshot from…

Q: Describe the Split-Horison and Split-Horison with Poison Reverse heuristics used by RIP. Explain how…

A: Split Horizon is a technique integrated into most remote vector routing protocols that prevents…

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

Consider a distributed system with two sites, A and B. Can site A
distinguish among the following?
B goes down.
The link between A and B goes down.
B is extremely overloaded and response time is 100 times
longer than normal.
What implications does your answer have for recovery in
distributed systems?

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

Define a fully connected network with two hidden layers with Nh1 and Nh2 features, respectively. The hidden layers should use relu activation and the final layer should not have any activation. a linear network with no hidden layer. We will use this network to study the benefit of depth, or equivalently using a non-linear network instead of a linear network. The final layer should not have any activation class NeuralNet(N.Module): # YOUR CODE HERE class LinearNet(N.Module): #YOUR CODE HERE
Shown below is a network with cycles in it. The bridges run the distributed spanning tree algorithm. For all of the labeled ports, indicate the final state, assuming that B1 is the root bridge. Recall that RP = "Root Port," DP = "Designated Port," and BP = "Blocked Port." Carefully note the port numbers for each bridge when entering your answers! 1 B3 B8 2 2 E В K B1 T B4 B6 2 2 C 1 B5 1 3, B7 B2 2 W Bridge Port 1 Port 2 Port 3 B2 [ Select ] [ Select ] B3 [ Select ] [ Select ]
There are many sensors on a wind turbine, based on each sensor's reading many alerts are generated as (start, end). For easier monitoring, our customer is asking to raise alerts on the turbine level instead of on each sensor. If any sensor is having an alert, there should be an alert for the entire wind turbine. Suppose the alerts created with two sensors readings are [(0,3),(5,10),(1,4),(10,15)], then the turbine level alert should be [(0,4),(5,15)]. Return the alerts sorted by the start timestamp. If there is no alert from the sensor level, return an empty array []. Code needs to be in Python?
Write on paper and submit a picture. Remember arrow directions are read when the point at a subject and write when they point at the object. 1. Alice and Bob are two users. Exam.docx and Solution.dox are two files with the given access rights. {Exam.docx, (Bob, ), (Alice, )} {Solution.docx, (Bob, ), (Alice, ) Based on this specification, draw an Information flow graph.
V1 Implement a multilayer perceptron based neural network (two hidden layers) for 3-class classification. Both holdout (70, 10, and 20%) and 5-fold cross-validation can be used to evaluate the accuracy (both overall and individual accuracy). You can select the number of hidden neurons of each hidden layer and other MLP parameters using grid-search method. The dataset (use any input file, or I can send separately) contains 7 features and the last column is the output (class labels). Packages such as tensorflow, keras, Scikitlearn etc are not allowed
A Communication network has the configuration shown below: The component reliabilities are as follows: R1 = R2 = R3 = R4 = R5 = R7 = 0.9 (R6 is unknown). It is required that the System Reliability be 0.8. Question: Determine the minimum reliability that component 6 must have such that it satisfies the System Reliability Requirement.
Consider the paths in the image below. There are many paths through this network – which one is the longest?
Suppose we have two industrial control systems S1 and S2 that are workingconcurrently. We need to forbid some sequence of actions from taking placebetween the two systems. One such action is allowing S1 and S2 to be onat the same time. Consider the alphabet:Σ = {On(S1), On(S2), Off(S1), Off(S2)}A sequence of actions is a word over Σ∗.i. Convert the property on sequences given above into a language, andthen define an NFA that accepts it.ii. A second property is that S2 must power off after S1, but S2 mustpower on before S1. Define a language which captures this property(and this property only), and then define a NFA that accepts it.
IN PYTHON Given the following six-node wide area network for which the numbers attached to the links are a measure of the “delay” in using that link (e.g., some lines could be more heavily used than others and therefore have a longer wait time), answer the following question. What is the shortest path from node A to node D, where shortest path is defined as the path with the smallest sum of the delays on each individual link? Explain exactly how you went about finding that path.
The following figure is a diagram of a small convolutional neural network that converts a 16x16 image into 4 output values (16x16 - 4x12x12 → 4x6x6 6x1). The network has the following layers/operations from input to output: convolution with 4 filters, max pooling, ReLu (after pooling), and finally a fully-connected layer (with no hidden layer). For this network we will not be using any bias/offset parameters. Please answer the following questions about this network. 16x16 Convolution 4 filters 5x5 Stride 1 4@12x12 max pooling 2x2 Stride 2 4@6x6 6x1 fully- connected
Given the following PDA M, the correct statements are: 1 ɛ/ɛ/a L(M) = {a}. ɛ/ɛ/a L(M) = {w: w contains the substring a}. 2 a/a/ɛ For w = aa, there are 2 rejecting paths. For w = aaa, there is an infinite number of rejecting paths. 3
Wireless sensor networks are a special kind of network that may transmit data. For data transmission between nodes and the base station, WSNs rely on sensor nodes. The computing resources and storage space of a sensor node are limited. In this thought experiment, we will consider a decomposable algorithm. To solve these subproblems at separate sensor nodes, would you prefer use divide and conquer or dynamic programming? Use succinct language.