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Recent questions tagged data-dependency

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GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 49
Consider the following code fragment:Identify all data dependencies (potential data hazards) in the given code snippet within one loop iteration. Let the number of true data dependencies ... .What is $\mathrm{X}+2 \mathrm{Y}+3 \mathrm{Z}?$
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Operand Forwarding [ Self Doubt }
I have a Self doubt question on Operand Forwarding . The data forwarded should be done in EX-EX stage or Mem-EX ? Which one to follow and when ?Using EX-EX we require less no. of cycles.
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GO Classes Test Series 2023 | CO and Architecture | Test 2 | Question: 8
Consider the following instruction sequence: ... $\mathrm{A}=4$\mathrm{A}=2$\mathrm{C}=2$
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#DBMS #dependency
What is the number of redundent FD’s possible for given set of FD , A->B, B->C,C->D for relation R(ABCD)?? please explain in detail.
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UGC NET CSE | October 2020 | Part 2 | Question: 14
Consider a relational schema $S=(U,V,W,X,Y,Z)$ ... $UY, VY, XY$UYZ, VYZ, VWZ$UYZ, VYZ, XYZ$
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NIELIT 2016 MAR Scientist C - Section C: 4
A functional dependency of the form $x\to y$ is trivial if$y\subseteq x$y\subset x$x\subseteq y$x\subset y\:\text{and}\:y\subset x$
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NIELIT 2016 MAR Scientist C - Section C: 34
Given the following relation instance:$\begin{array}{ccc} X & Y & Z \\ \hline 1 & 4 & 2 \\ 1 & 5 & 3 \\ 1 & 6 & 3 \\ 3 & 2 & 2 \end{array}$ ... $XZ \rightarrow Y \text{ and } Y \rightarrow X$
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NIELIT 2016 MAR Scientist C - Section C: 35
Consider the schema $R=(\text{S T U V})$ and the dependencies $ S \rightarrow T, T \rightarrow U, U \rightarrow V$, and $V \rightarrow S.$ If $R=(R1 \text{ and } R2)$ ... $\text{2 NF}$in both $\text{2 NF}$ and $\text{3 NF}$
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NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 10
Which of the following is a desirable property of module?IndependencyLow cohesivenessHigh CouplingMultifunctional
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NIELIT 2017 OCT Scientific Assistant A (CS) - Section C: 5
Which of the following is a desirable property of module?IndependencyLow cohesivenessHigh CouplingMultifunctional
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UGC NET CSE | December 2006 | Part 2 | Question: 18
Which statement is false regarding data independence ?Hierarchical data model suffers from data independenceNetwork model suffers from data ... logical data independenceRelational model suffers only from physical data independence
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KPGCET-CSE-2019-27
The undesirable multivalued dependency in a relation arises if there exist Two one-to-many relationships between attributes of a relation One one-to-one ... of a relation One one-to-many relationship between attributes across relation
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Madeeasy- Types of Dependencies
Please clarify along with the names.
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Data forwarding in pipelining
Data forwarding is used to avoid which type of conflict??(1) RAW(2) WAR(3) WAW(4) RAR
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Avoiding pipeline Hazards
Please Confirm.
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NIELIT 2018-58
Consider the following functional dependencies in a database:$A \rightarrow B$B \rightarrow C$D \rightarrow E$E \rightarrow D$F \rightarrow G$F \rightarrow H$(E,F) \rightarrow I$The relation $(E,D,A,B)$ is$2$ NF$3$ NFBCNFNone of the above
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Data Hazards
Find the data hazards(RAW,WAW,WAR) in the given instructions
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Sum of Data dependencies
$I_1 : MUL \ \ \ \ \ R_1, R_2, R_3$ // $R_1 \leftarrow R_2 \times R_3$ ... R_6$I_4 : SUB \ \ \ \ \ R_4, R_4, R_1$ Sum of RAW, WAR and WAW dependencies is _____.
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Pipeline : Number of RAW dependencies
Consider the below instructions executed on a 5 stage(IF,ID,EX,MA,WB) RISC pipeline with operand forwarding.I1: ADD R0,R1,R2 (R0=R1+R2)I2: SUB R3,R0,R2I3:MUL R4,R3,R0I4:DIV R5,R4,R0How many RAW dependencies?
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Data dependancies
Anti- dependency will not ALWAYS create stall because we can use register renaming to remove stall.Please confirm below statement:Anti-dependency MAY create stall (True/False)
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please solve my Q
24. Consider the following instructions.I 1 : R 1 = 100I 2 : R 1 = R 2 + R 4I 3 : R 2 = R 4 + 25I 4 : R 4 = R 1 + R 313I 5 : R 1 = R 1 + 30Calculate sum of (WAR, RAW and WAW) dependencies the above instructions.(a) 10 (b) 12(c) 6 (d) 8
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MadeEasy Test Series: CO & Architecture - Data Dependency
I'm getting 6,1,2 but the answer given is 5,1,2
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RAW, WAR, WAW hazards
J1: R1 = 100J2: R1 = R2 + R4J3: R2 = R4 + 25J4: R4 = R1 + R3J5: R1 = R1 + 30Give the no of RAW, WAR and WAW hazards
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WAR amd WAW dependency
R4 <- R1 + R4R4 <- R2 + R4R4 <- R3 + R5Number of WAR and WAW dependencies?
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