Homework Answers
Ans:
- R4------- Natural JOIN of R1 and R2
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- R5 ----------------------- CARTESIAN PRODUCT of R2 and R3
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Database question:
Assume we have an instance of R(A, B, C) as given in the following...
(9.1.35) Consider the following relations on ℝ: R1 = {(a, b) ∈ ℝ2 | a >...
(9.1.35) Consider the following relations on ℝ: R1 = {(a, b) ∈ ℝ2 | a > b}, the “greater than” relation, R2 = {(a, b) ∈ ℝ2 | a ≥ b}, the “greater than or equal to” relation, R3 = {(a, b) ∈ ℝ2 | a < b}, the “less than” relation, R4 = {(a, b) ∈ ℝ2 | a ≤ b}, the “less than or equal to” relation, R5 = {(a, b) ∈ ℝ2 | a = b}, the...
Please apply the Lossless Join Testing algorithm to see if the decomposition D is a lossless...
Please apply the Lossless Join Testing algorithm to see if the decomposition D is a lossless join decomposition. Please provide testing details step by step when you apply the set of functional dependency for testing. Given 1. The universal relation schema Q(CTHRSG), where C = course, T = teacher, H = hour, R = room, S= student, and G = grade. 2. The minimal set of functional dependencies F are assumed: C -> T each course has one...
This question is from the subject: Database Systems QUESTION 8 Consider the relation R(A,B,C,D,E,F) with FDs...
This question is from the
subject: Database Systems
QUESTION 8 Consider the relation R(A,B,C,D,E,F) with FDs A -> C,B->D, C-> E, D -> F. Consider the BCNF status of R. Which of the following could be correct given the information above? 1. Ris in BCNF already. 2. Ris not in BCNF. It must be divided into R1(A,C,E) with FDs A->C, C-> E, and R2(B,D,F) with FDs B -> D, D -> F. 3. R is not in BCNF. It must...
Please answer clearly Question 2 The amplifier shown in Figure 2 has the following parameters: Kn(W/L)-1 mA/V2, V-1 V Determine a) Voltage gain (Vo/vi) b) Input resistance (R) c) Output resistance (R...
Please answer clearly
Question 2 The amplifier shown in Figure 2 has the following parameters: Kn(W/L)-1 mA/V2, V-1 V Determine a) Voltage gain (Vo/vi) b) Input resistance (R) c) Output resistance (Ro) d) Maximum output voltage swing so as the amplifier stays in saturation mode. Assume VDD-20 V, R1-2.5 ΚΩ, R2-1KQ, R3-0.5 ΚΩ, R4-5 MQ, R5_1ΜΩ. R4 R1 R5 R2 Ro R3
Question 2 The amplifier shown in Figure 2 has the following parameters: Kn(W/L)-1 mA/V2, V-1 V Determine a)...
Please answer full question thoroughly (A & B) showing detailed work. Double check answer and work...
Please answer full question thoroughly (A & B)
showing detailed work. Double check answer and work to ensure it is
correct for thumbs up
Part A
Part B
Consider the following circuit of five resistors connected to a DC power supply set to 1.0V R1 R2 R3 V1 U 1V R4 R5 R1 0.05 ohms, R2 0.2 ohms, R3 99 ohms and R5 0.15 ohms. The voltage drop across R4 is 6 mV. Answer the following: What is the current...
Find the decopmosition of R into R1(A, B, C), R2(B, C,D ) and R3(C, D, E)...
Find the decopmosition of R into R1(A, B, C), R2(B, C,D ) and
R3(C, D, E)
Let R(A,B,C,D,E) be a relation with FDs F = {AB-CDAE, C-D, D-E} The decomposition of R into R1(A, B, C), R2(B, C, D) and RP(C, D, E) is (2 Points) Select one: Lossy and Not Dependency Preserving. Lossless and Not Dependency Preserving. Lossy and Dependency Preserving. Lossless and Dependency Preserving.
a) Determine the total resistance, RT. (4 points) b) Find the source current Is. (2 points)...
a) Determine the total resistance, RT. (4 points) b) Find the source current Is. (2 points) c) Find voltages and currents for each resistor and fill in Table 1. (14 points) R2 R3 1.5k 1k R4 3.3k R 1 2k R7 4.7k 10V R5 8.2k R6 5.6k Figure 1 Table 1 VR4 IR4 R3 R3 IR1 R2 R2 R1 Table 1 Cont'd V R7 R7 R6 R6 V R5 R5
Consider the following operations: A B- C The corresponding assembly code instruction list generated by a compiler are 1 load [%r0 +4], %r1 2 load [%r0 + 8], %r2 3 sub %r1, %r2,%r3 4 load [ZrO + 1...
Consider the following operations: A B- C The corresponding assembly code instruction list generated by a compiler are 1 load [%r0 +4], %r1 2 load [%r0 + 8], %r2 3 sub %r1, %r2,%r3 4 load [ZrO + 12], %r4 5 add %r3, %r4 , %r5 6 store %r3, [%r0 + 16] 7 store %r5, [%r0 + 20] a) Identify the potential pipeline hazards. (10 points) b) State if the found hazards can be eliminated and if so propose a scheme...
You are given that the equivalent resistance between A and B is Req Find the value...
You are given that the equivalent resistance between A and B is Req Find the value of R3. 2 R. 5 R6 Given Variables: Req 6 ohm R1:6 ohm R2:4 ohm R4: 40 ohm R5 10 ohm R6:62 ohm R7:4 ohnm Determine the following: R3 (ohm)
7. Assume that we have a file with six records at the following physical storage locations: R1: 3...
7. Assume that we have a file with six records at the following physical storage locations: R1: 3; R2: 7; R3: 8; R4: 12; R5:15; R6: 16 a. Show the directory and linked record structure for this file assuming noncontiguous file storage with linking b. Show the directory for this file assuming noncontiguous storage with linking taking place at the directory level
This question is from the
subject: Database Systems
QUESTION 8 Consider the relation R(A,B,C,D,E,F) with FDs A -> C,B->D, C-> E, D -> F. Consider the BCNF status of R. Which of the following could be correct given the information above? 1. Ris in BCNF already. 2. Ris not in BCNF. It must be divided into R1(A,C,E) with FDs A->C, C-> E, and R2(B,D,F) with FDs B -> D, D -> F. 3. R is not in BCNF. It must...
Please answer clearly
Question 2 The amplifier shown in Figure 2 has the following parameters: Kn(W/L)-1 mA/V2, V-1 V Determine a) Voltage gain (Vo/vi) b) Input resistance (R) c) Output resistance (Ro) d) Maximum output voltage swing so as the amplifier stays in saturation mode. Assume VDD-20 V, R1-2.5 ΚΩ, R2-1KQ, R3-0.5 ΚΩ, R4-5 MQ, R5_1ΜΩ. R4 R1 R5 R2 Ro R3
Question 2 The amplifier shown in Figure 2 has the following parameters: Kn(W/L)-1 mA/V2, V-1 V Determine a)...
Please answer full question thoroughly (A & B)
showing detailed work. Double check answer and work to ensure it is
correct for thumbs up
Part A
Part B
Consider the following circuit of five resistors connected to a DC power supply set to 1.0V R1 R2 R3 V1 U 1V R4 R5 R1 0.05 ohms, R2 0.2 ohms, R3 99 ohms and R5 0.15 ohms. The voltage drop across R4 is 6 mV. Answer the following: What is the current...
Find the decopmosition of R into R1(A, B, C), R2(B, C,D ) and
R3(C, D, E)
Let R(A,B,C,D,E) be a relation with FDs F = {AB-CDAE, C-D, D-E} The decomposition of R into R1(A, B, C), R2(B, C, D) and RP(C, D, E) is (2 Points) Select one: Lossy and Not Dependency Preserving. Lossless and Not Dependency Preserving. Lossy and Dependency Preserving. Lossless and Dependency Preserving.
a) Determine the total resistance, RT. (4 points) b) Find the source current Is. (2 points) c) Find voltages and currents for each resistor and fill in Table 1. (14 points) R2 R3 1.5k 1k R4 3.3k R 1 2k R7 4.7k 10V R5 8.2k R6 5.6k Figure 1 Table 1 VR4 IR4 R3 R3 IR1 R2 R2 R1 Table 1 Cont'd V R7 R7 R6 R6 V R5 R5
Consider the following operations: A B- C The corresponding assembly code instruction list generated by a compiler are 1 load [%r0 +4], %r1 2 load [%r0 + 8], %r2 3 sub %r1, %r2,%r3 4 load [ZrO + 12], %r4 5 add %r3, %r4 , %r5 6 store %r3, [%r0 + 16] 7 store %r5, [%r0 + 20] a) Identify the potential pipeline hazards. (10 points) b) State if the found hazards can be eliminated and if so propose a scheme...
You are given that the equivalent resistance between A and B is Req Find the value of R3. 2 R. 5 R6 Given Variables: Req 6 ohm R1:6 ohm R2:4 ohm R4: 40 ohm R5 10 ohm R6:62 ohm R7:4 ohnm Determine the following: R3 (ohm)
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