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2. (20 POINTS) Given two schedules Si and S2 as follows: time begin transaction read(bal write(bal)...
2. Consider the following two transactions: (10 points) T13: read(A); read(B); if A = 1 then...
2. Consider the following two transactions: (10 points) T13: read(A); read(B); if A = 1 then B := B - 1; write(B). T14: read(B); read(A); if B = 1 then A := A - 1; write(A). Let the consistency requirement be A = 1 or B = 1, with A = 1 and B = 1 as the initial values. a. Show that every serial execution involving these two transactions preserves the consistency of the database. b. Show a concurrent...
1. What is the difference between Two-Phase Locking (2PL) and Strict Two-Phase Locking? What condition to Strict 2PL prevent that 2PL does not prevent? 2. What are deadlocks? What are two techniques...
1. What is the difference between Two-Phase Locking (2PL) and Strict Two-Phase Locking? What condition to Strict 2PL prevent that 2PL does not prevent? 2. What are deadlocks? What are two techniques for detecting and resolving deadlocks? 3. In the figure below, R(X, y) means read database item X into variable y and W(X, y) means write variable y into database item y. Column T1 shows transaction T1's operations and column T2 shows T2's operations. Columns Aand_B show the values...
Question (2): (5 Marks) x-1-3-y x-1-6-y:+2 are (A) Determine intersecting or skew. If they intersect, find the point of intersection Given SI: x2-2y2 = 4z2-252 &s2: (0 Show that the tangent p...
Question (2): (5 Marks) x-1-3-y x-1-6-y:+2 are (A) Determine intersecting or skew. If they intersect, find the point of intersection Given SI: x2-2y2 = 4z2-252 &s2: (0 Show that the tangent planes to the two surfaces at P(2,0,-8) are perpendicular. whether the lines parallel, 2-z & 12 Marks] 4x2 +9y2-24. (B) Find the points on Si at which the tangent plane is parallel to the plane x+y+32-5 3 Marks]
Question (2): (5 Marks) x-1-3-y x-1-6-y:+2 are (A) Determine intersecting or...
Q2) (20 points) The joint pdf of a two continuous random variables is given as follows:...
Q2) (20 points) The joint pdf of a two continuous random variables is given as follows: < x < 2,0 < y<1 (cxy0 fxy(x, y) = } ( 0 otherwise 1) Find c. 2) Find the marginal PDFs of X and Y. Make sure to write the ranges. Are these random variables independent? 3) Find P(0 < X < 110 <Y < 1) 4) What is fxy(x\y). Make sure to write the range of X.
Problem2. (20 points) A. Find the y-parameters for the two-port network given below. (16 points) 31...
Problem2. (20 points) A. Find the y-parameters for the two-port network given below. (16 points) 31 A 40 VI V2 B. Find the z-parameter z" and z12 in Ω for the circuit below and circle the correct answer: Show your work) (4 points) + I 1S2 3Ω -12 Vi 252 a) 2 b 3. 3.- 2. 3.2f. g 3,3
Examination #2 100 points CS248 Theory of Computation 1. Please read all instructions (including these) carefully....
Examination #2 100 points CS248 Theory of Computation 1. Please read all instructions (including these) carefully. You should look through the entire exam before strategy. You have 50 minutes to complete the exam. This exam is closed books and closed notes. 2. Please write your solutions in the spaces provided on the exam. Make sure your solutions are neat and the exam pages as scratch paper. (Last 4 digits o NAME: (Print) First Last In accordance with both the letter...
Practice Problem [no points]: You should read and understand Fibonacci algorithm, write a code in a...
Practice Problem [no points]: You should read and understand Fibonacci algorithm, write a code in a high level language of your choice and in Assembly to find a Fibonacci number and check your result. At the end of this assignment a possible solution to this problem is given both in Python and MIPS assembler. Note that it would have been possible to write the Python differently to achieve the same function. . [20 points] Write and debug a MIPS program...
Write a program to process a weighted undirected graph as follows. (a) Read in the number...
Write a program to process a weighted undirected graph as follows. (a) Read in the number of vertices V and the number of edges E of the graph followed by its E edges, each in the form u, v, w where 1 <= u, v <= V & w > 0 representing an edge uv with weight w. (b) Set up and print the adjacency matrix representation of the Graph. (c) Determine whether the graph is connected. ...
C++ -- Event processing simulation using a transaction queue Hi! it is queue simulation please read...
C++ -- Event processing simulation using a transaction queue Hi! it is queue simulation please read the instructions, write codes, and explain the code with comments. Thank you Transactions enter the system and are stored in a queue. Each transaction represents some work that needs to be accomplished. Servers exist which process transactions. Servers take transactions off the queue and process them. you’re building the simulation framework. The idea is that somebody would take your framework, and add the specifics...
The work shift at the ABC Company runs fr lunch from 11:30 to 12:15 p.m. that does not count as part of the work shift (workers are not paid for this time). The company provides two 12-minute res...
The work shift at the ABC Company runs fr lunch from 11:30 to 12:15 p.m. that does not count as part of the work shift (workers are not paid for this time). The company provides two 12-minute rest breaks during working hours (paid time), one in the morning and one in the afternoon. The com m. to 4:15 p.m. with a 45 minute break for pany also allows 25 minute day for personal needs (paid time). In addition, a work...
1. What is the difference between Two-Phase Locking (2PL) and Strict Two-Phase Locking? What condition to Strict 2PL prevent that 2PL does not prevent? 2. What are deadlocks? What are two techniques for detecting and resolving deadlocks? 3. In the figure below, R(X, y) means read database item X into variable y and W(X, y) means write variable y into database item y. Column T1 shows transaction T1's operations and column T2 shows T2's operations. Columns Aand_B show the values...
Question (2): (5 Marks) x-1-3-y x-1-6-y:+2 are (A) Determine intersecting or skew. If they intersect, find the point of intersection Given SI: x2-2y2 = 4z2-252 &s2: (0 Show that the tangent planes to the two surfaces at P(2,0,-8) are perpendicular. whether the lines parallel, 2-z & 12 Marks] 4x2 +9y2-24. (B) Find the points on Si at which the tangent plane is parallel to the plane x+y+32-5 3 Marks]
Question (2): (5 Marks) x-1-3-y x-1-6-y:+2 are (A) Determine intersecting or...
Q2) (20 points) The joint pdf of a two continuous random variables is given as follows: < x < 2,0 < y<1 (cxy0 fxy(x, y) = } ( 0 otherwise 1) Find c. 2) Find the marginal PDFs of X and Y. Make sure to write the ranges. Are these random variables independent? 3) Find P(0 < X < 110 <Y < 1) 4) What is fxy(x\y). Make sure to write the range of X.
Problem2. (20 points) A. Find the y-parameters for the two-port network given below. (16 points) 31 A 40 VI V2 B. Find the z-parameter z" and z12 in Ω for the circuit below and circle the correct answer: Show your work) (4 points) + I 1S2 3Ω -12 Vi 252 a) 2 b 3. 3.- 2. 3.2f. g 3,3
Examination #2 100 points CS248 Theory of Computation 1. Please read all instructions (including these) carefully. You should look through the entire exam before strategy. You have 50 minutes to complete the exam. This exam is closed books and closed notes. 2. Please write your solutions in the spaces provided on the exam. Make sure your solutions are neat and the exam pages as scratch paper. (Last 4 digits o NAME: (Print) First Last In accordance with both the letter...
Practice Problem [no points]: You should read and understand Fibonacci algorithm, write a code in a high level language of your choice and in Assembly to find a Fibonacci number and check your result. At the end of this assignment a possible solution to this problem is given both in Python and MIPS assembler. Note that it would have been possible to write the Python differently to achieve the same function. . [20 points] Write and debug a MIPS program...
The work shift at the ABC Company runs fr lunch from 11:30 to 12:15 p.m. that does not count as part of the work shift (workers are not paid for this time). The company provides two 12-minute rest breaks during working hours (paid time), one in the morning and one in the afternoon. The com m. to 4:15 p.m. with a 45 minute break for pany also allows 25 minute day for personal needs (paid time). In addition, a work...
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