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121

Operating system binary semaphores
Find initial values of binary semaphores X and Y. P and V operation for counting semaphore b is defined as: P(b): b--; wait if b<0; V(b): b++; wakeup any waiting process in b if b<=0; Pa (wait) and Va (signal) are implemented as: P(b): Pa(Y); b--; if(b<0) { Va(Y); Pa(X); } else Va(Y); V(b): Pa(Y); b++; if(b<=0) { Va(Y); Va(X); }

Find initial values of binary semaphores X and Y. P and V operation for counting semaphore b is defined as:P(b): b ; wait if b<0;V(b): b++; wakeup any waiting process in ...

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jasper asked Oct 21, 2023

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122

Confusion on GATE CS vs DA
Hi Everyone, 2022 Grad here from Btech ECE, Currently Working in IT (Android Development) Preparing for Gate 2025 I have interest in AI & ML, but not sure about the carrer prespective on it. Should I take DA in gate and Prepare for it? Or ... CS Also what are the difference in course provided by college in them. Any resources to prepare for DA also will be helpful.

Hi Everyone,2022 Grad here from Btech ECE, Currently Working in IT (Android Development)Preparing for Gate 2025I have interest in AI & ML, but not sure about the carrer p...

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madvam asked Sep 11, 2023

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123

test series related
i am preparing for gate cs 2024 , my friend suggested me Go test series , is there any option for discount? because 1650 rupees is good amount for me.

i am preparing for gate cs 2024 , my friend suggested me Go test series , is there any option for discount? because 1650 rupees is good amount for me.

nikhil_rajput63

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nikhil_rajput63 asked Sep 6, 2023

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124

sir how i can buy bith test series of last year and recent year for gate

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chandrap asked Aug 25, 2023

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125

From where to prepare for tech part for BHEL CS branch

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mk_007 asked Aug 5, 2023

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126

UGC NET CSE | June 2023 | Part 2: 1
What is the output of following code? main () struct s1 { char * z; int i; struct s1 * p; } static struct s 1 a []}={ {"Nagpur", 1, a+1} {"Raipur', 2, a+2} {"Kanpur', 3, a} }; struct s 1* ptr =a ... %s\n", a[0].z. ptr $/rightarrow$ z, a [2]. p $/rightarrow$ z;) Nagpur Raipur Kanpur Nagpur Nagpur Nagpur Kanpur Kanpur Kanpur Error

What is the output of following code?main () struct s1 { char * z; int i; struct s1 * p; } static struct s 1 a []}={ {"Nagpur", 1, a+1} {"Raipur', 2, a+2} {"Kanpur', 3, a...

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admin asked Jul 28, 2023

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127

UGC NET CSE | June 2023 | Part 2: 2
Which of the following statement is correct? Ackermann's function is primitive recursive. $L=\left\{a^{n} b^{k} c^{n+k}: n \geq 0, k \geq 0\right\}$ is regular language. $L=\left\{a^{n} b^{J}: n=J^{2}\right\}$ ... language For every context sensitive language $L$ not including $\lambda$, there exists some linear bounded automata $M$ such that $L \neq L(M)$.

Which of the following statement is correct?Ackermann's function is primitive recursive.$L=\left\{a^{n} b^{k} c^{n+k}: n \geq 0, k \geq 0\right\}$ is regular language.$L=...

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admin asked Jul 28, 2023

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128

UGC NET CSE | June 2023 | Part 2: 3
There are $M$ points on one straight line $A B$ and $n$ points on another straight line $A C$ none of them being $A$. How many triangles can be formed with these points as vertices? $m n(m+n-2)$ $\frac{1}{2} m n(m+n-2)$ $\frac{1}{2} m n(m+n-1)$ $m n(m+n-1)$

There are $M$ points on one straight line $A B$ and $n$ points on another straight line $A C$ none of them being $A$. How many triangles can be formed with these points a...

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admin asked Jul 28, 2023

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129

UGC NET CSE | June 2023 | Part 2: 4
Consider the following statements. The identity is unique in any monoid. A monoid is a group if there exists inverse of each element of monoid. Semi group has closure, associative and identity properties. Quasi group has closure property. Choose the correct answer from the options given ... only $\text{A, B}$ and $\text{C}$ only $\text{A, C}$ and $\text{D}$ only

Consider the following statements.The identity is unique in any monoid.A monoid is a group if there exists inverse of each element of monoid.Semi group has closure, assoc...

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admin asked Jul 28, 2023

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130

UGC NET CSE | June 2023 | Part 2: 5
Which of the following scenario may lead to an irrecoverable error in a database system? A transaction writes a data item after it is read by an uncommitted transaction A transaction reads a data item after it is read by an uncommitted ... it is written by a committed transactions A transaction reads a data item after it is written by an uncommitted transaction.

Which of the following scenario may lead to an irrecoverable error in a database system?A transaction writes a data item after it is read by an uncommitted transactionA t...

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admin asked Jul 28, 2023

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131

UGC NET CSE | June 2023 | Part 2: 6
Consider the following statements C-Fuzzy means clustering is a supervised method of learning PCA is used for dimension reduction Apriori is not a supervised technique When a machine learning model becomes so specially tuned to its exact input data that it fails to generalize to other ... $\mathrm{C}$ $\text{C}$ and $\text{D}$ $\mathrm{D}$ and $\mathrm{A}$

Consider the following statementsC-Fuzzy means clustering is a supervised method of learningPCA is used for dimension reductionApriori is not a supervised techniqueWhen a...

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admin asked Jul 28, 2023

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132

UGC NET CSE | June 2023 | Part 2: 7
Which phase of compiler checks the grammar of programming? Code optimization Semantic analysis Code generators Syntax analysis

Which phase of compiler checks the grammar of programming? Code optimizationSemantic analysisCode generatorsSyntax analysis

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admin asked Jul 28, 2023

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133

UGC NET CSE | June 2023 | Part 2: 8
In a multiuser operating system, $20$ requests are made to use a particular resource per hour, on an average. The probability that no request is made in $45$ minutes is $\mathrm{e}^{-15}$ $\mathrm{e}^{-5}$ $1-\mathrm{e}^{-5}$ $1-\mathrm{e}^{-10}$

In a multiuser operating system, $20$ requests are made to use a particular resource per hour, on an average. The probability that no request is made in $45$ minutes is$\...

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admin asked Jul 28, 2023

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134

UGC NET CSE | June 2023 | Part 2: 10
A processor chip is used for application in which $30 \%$ of execution time is spent on floating point addition. For the new model of the processor, the design team has come up with redesign the floating point adder to make it twice as fast. What will be possible maximum speed up by this redesign? $2.0$ $1.06$ $1.18$ $2.5$

A processor chip is used for application in which $30 \%$ of execution time is spent on floating point addition. For the new model of the processor, the design team has c...

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admin asked Jul 28, 2023

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135

UGC NET CSE | June 2023 | Part 2: 11
________ is intended to show that a system both conforms to its specifications and meets the expectations of the system customer. Software specification Software design Software evaluation Software validation

________ is intended to show that a system both conforms to its specifications and meets the expectations of the system customer.Software specificationSoftware designSoft...

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admin asked Jul 28, 2023

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136

UGC NET CSE | June 2023 | Part 2: 12
Which is not a basic approach to the problem of conflict resolution in a production system? Assigning a preference based on the rule that matched Assigning a preference based the object that matched Assigning a preference based on the action that the matched rule would perform Assigning a preference based on the action that the matched object would perform

Which is not a basic approach to the problem of conflict resolution in a production system?Assigning a preference based on the rule that matchedAssigning a preference bas...

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admin asked Jul 28, 2023

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137

UGC NET CSE | June 2023 | Part 2: 13
Consider universe positive integer $X=\{1 \leq n \leq 8\}$, proposition $P=$ " $n$ is an even integers", $Q="(3 \leq n \leq 7) \wedge(n \neq 6)$ ". Then truth set of $P$ $\leftrightarrow \mathrm{Q}$ is $\{1,4\}$ $\{2,6\}$ $\{3,4,5\}$ $\{1\}$

Consider universe positive integer $X=\{1 \leq n \leq 8\}$, proposition $P=$ " $n$ is an even integers", $Q="(3 \leq n \leq 7) \wedge(n \neq 6)$ ". Then truth set of $P$ ...

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admin asked Jul 28, 2023

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138

UGC NET CSE | June 2023 | Part 2: 14
Consider a disk system with cylinders. The request to access the cylinders occurs in the following sequence: \[ 4,34,10,7,19,73,2,15,6,20 \] Assuming that the head is currently at cylinder $50$ ... time first policy is used? $119 \mathrm{~ms}$ $120 \mathrm{~ms}$ $142 \mathrm{~ms}$ $146 \mathrm{~ms}$

Consider a disk system with cylinders. The request to access the cylinders occurs in the following sequence:\[4,34,10,7,19,73,2,15,6,20\]Assuming that the head is current...

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admin asked Jul 28, 2023

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139

UGC NET CSE | June 2023 | Part 2: 15
In the standard Ethernet with transmission rate of $10 \mathrm{Mbps}$, asssume that the length of the medium is $2500 \mathrm{~m}$ and size of a frame is $512$ ... $50.12 \mu \mathrm{s}$ $12.5 \mu \mathrm{s}$ and $51.2 \mu \mathrm{s}$

In the standard Ethernet with transmission rate of $10 \mathrm{Mbps}$, asssume that the length of the medium is $2500 \mathrm{~m}$ and size of a frame is $512$ bytes. The...

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admin asked Jul 28, 2023

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140

UGC NET CSE | June 2023 | Part 2: 16
Consider two hosts $\text{P}$ and $\text{Q}$ that are connected through a router $\text{R}$. The maximum transfer unit $\text{(MTU)}$ value of the link between $\text{P}$ and $\text{R}$ is $1500$ bytes and between $\text{R}$ and $\text{Q}$ is $820$ bytes. A ... $\text{A}$ and $\text{C}$ only $\text{C}$ and $\text{D}$ only $\text{B}$ and $\text{D}$ only

Consider two hosts $\text{P}$ and $\text{Q}$ that are connected through a router $\text{R}$. The maximum transfer unit $\text{(MTU)}$ value of the link between $\text{P}$...

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admin asked Jul 28, 2023

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