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Recent questions tagged gate2006

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GATE 2006 questions from Computer Science & Engineering

Recent questions tagged gate2006

17 votes
2 answers
1
GATE2006-77
Statement for Linked Answer Questions 76 & 77: A $3$-ary max heap is like a binary max heap, but instead of $2$ children, nodes have $3$ children. A $3$-ary heap can be represented by an array as follows: The root is stored in the first location, $a[0]$, nodes in the next level, from left to right, is ... $10, 9, 4, 5, 7, 6, 8, 2, 1, 3$ $10, 8, 6, 9, 7, 2, 3, 4, 1, 5$
Statement for Linked Answer Questions 76 & 77: A $3$-ary max heap is like a binary max heap, but instead of $2$ children, nodes have $3$ children. A $3$-ary heap can be represented by an array as follows: The root is stored in the first location, $a[0]$ ... $10, 9, 4, 5, 7, 6, 8, 2, 1, 3$ $10, 8, 6, 9, 7, 2, 3, 4, 1, 5$
asked Nov 27, 2016 in DS Arjun 2.4k views
14 votes
6 answers
2
GATE2006-85
The grammar $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid \epsilon$ $A\rightarrow aA\mid a$ $B\rightarrow Bb\mid b$ generates the language $ L=\left \{ a^{i}b^{j}\mid i\neq j \right \}$. In this grammar what is the length of the derivation (number of steps starting from $S$) to generate the string $a^{l}b^{m}$ with $l\neq m$ $\max (l,m) + 2$ $l + m + 2$ $l + m + 3$ $\max (l,m) + 3$
The grammar $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid \epsilon$ $A\rightarrow aA\mid a$ $B\rightarrow Bb\mid b$ generates the language $ L=\left \{ a^{i}b^{j}\mid i\neq j \right \}$. In this grammar what is the length of the derivation (number of steps starting from $S$) to generate the string $a^{l}b^{m}$ with $l\neq m$ $\max (l,m) + 2$ $l + m + 2$ $l + m + 3$ $\max (l,m) + 3$
asked Nov 7, 2016 in Compiler Design jothee 2.1k views
13 votes
1 answer
3
GATE2006-83
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. ...
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. Next, the root ...
asked Nov 7, 2016 in Computer Networks jothee 3.2k views
29 votes
5 answers
4
GATE2006-73
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The number of connected components in $G$ is: $n$ $n + 2$ $2^{\frac{n}{2}}$ $\frac{2^{n}}{n}$
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The number of connected components in $G$ is: $n$ $n + 2$ $2^{\frac{n}{2}}$ $\frac{2^{n}}{n}$
asked Apr 24, 2016 in Graph Theory jothee 3.6k views
56 votes
4 answers
5
GATE2006-72
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The maximum degree of a vertex in $G$ is: $\binom{\frac{n}{2}}{2}.2^{\frac{n}{2}}$ $2^{n-2}$ $2^{n-3}\times 3$ $2^{n-1}$
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The maximum degree of a vertex in $G$ is: $\binom{\frac{n}{2}}{2}.2^{\frac{n}{2}}$ $2^{n-2}$ $2^{n-3}\times 3$ $2^{n-1}$
asked Apr 24, 2016 in Graph Theory jothee 6.9k views
24 votes
4 answers
6
GATE2006-75
Consider two cache organizations. First one is $32$ $kB$ $2$-way set associative with $32$ $byte$ block size, the second is of same size but direct mapped. The size of an address is $32$ $bits$ in both cases . A $2$-to-$1$ multiplexer has latency of $0.6 ns$ while a $k-$bit comparator ... that of direct mapped is $h_2$. The value of $h_2$ is: $2.4$ $ns$ $2.3$ $ns$ $1.8$ $ns$ $1.7$ $ns$
Consider two cache organizations. First one is $32$ $kB$ $2$-way set associative with $32$ $byte$ block size, the second is of same size but direct mapped. The size of an address is $32$ $bits$ in both cases . A $2$-to-$1$ multiplexer has latency of $0.6 ns$ while a $k-$bit comparator has ... while that of direct mapped is $h_2$. The value of $h_2$ is: $2.4$ $ns$ $2.3$ $ns$ $1.8$ $ns$ $1.7$ $ns$
asked Apr 24, 2016 in CO and Architecture jothee 4.9k views
29 votes
4 answers
7
GATE2006-79
Barrier is a synchronization construct where a set of processes synchronizes globally i.e., each process in the set arrives at the barrier and waits for all others to arrive and then all processes leave the barrier. Let the number of processes in the set ... is disabled at the beginning of the barrier and re-enabled at the end. The variable process_left is made private instead of shared
Barrier is a synchronization construct where a set of processes synchronizes globally i.e., each process in the set arrives at the barrier and waits for all others to arrive and then all processes leave the barrier. Let the number of processes in the set be ... switch is disabled at the beginning of the barrier and re-enabled at the end. The variable process_left is made private instead of shared
asked Apr 24, 2016 in Operating System jothee 3.9k views
24 votes
5 answers
8
GATE2006-81
A CPU has a $32$ $KB$ direct mapped cache with $128$ byte-block size. Suppose $A$ is two dimensional array of size $512 \times512$ with elements that occupy $8-bytes$ each. Consider the following two $C$ code segments, $P1$ and $P2$. $P1$: for (i=0; i<512; i++) { for (j=0; j< ... for $P2$ be $M2$. The value of the ratio $\frac{M_{1}}{M_{2}}$: $0$ $\frac{1}{16}$ $\frac{1}{8}$ $16$
A CPU has a $32$ $KB$ direct mapped cache with $128$ byte-block size. Suppose $A$ is two dimensional array of size $512 \times512$ with elements that occupy $8-bytes$ each. Consider the following two $C$ code segments, $P1$ and $P2$. $P1$: for (i=0; i<512; i++) { for (j=0; j<512; j++) ... and that for $P2$ be $M2$. The value of the ratio $\frac{M_{1}}{M_{2}}$: $0$ $\frac{1}{16}$ $\frac{1}{8}$ $16$
asked Apr 23, 2016 in CO and Architecture jothee 4k views
33 votes
4 answers
9
GATE2006-84
Which one of the following grammars generates the language $ L=\left \{ a^{i}b^{j}\mid i\neq j \right \}$? $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid a\mid b$ $A\rightarrow aA\mid \varepsilon$ $B\rightarrow Bb\mid \varepsilon$ ... $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid \varepsilon$ $A\rightarrow aA\mid a$ $B\rightarrow Bb\mid b$
Which one of the following grammars generates the language $ L=\left \{ a^{i}b^{j}\mid i\neq j \right \}$? $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid a\mid b$ $A\rightarrow aA\mid \varepsilon$ $B\rightarrow Bb\mid \varepsilon$ ... $S\rightarrow AC\mid CB$ $C\rightarrow aCb\mid \varepsilon$ $A\rightarrow aA\mid a$ $B\rightarrow Bb\mid b$
asked Sep 26, 2014 in Compiler Design Rucha Shelke 4.9k views
36 votes
4 answers
10
GATE2006-82
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. Next, the root ... $\text{B1, B5, B2, B3, B4}$ $\text{B1, B3, B4, B5, B2}$
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. Next, the root sends out ... $\text{B1, B5, B2, B3, B4}$ $\text{B1, B3, B4, B5, B2}$
asked Sep 26, 2014 in Computer Networks Rucha Shelke 10.5k views
33 votes
8 answers
11
GATE2006-80
A CPU has a $32 KB$ direct mapped cache with $128$ byte-block size. Suppose A is two dimensional array of size $512 \times512$ with elements that occupy $8$-bytes each. Consider the following two C code segments, $P1$ and $P2$. P1: for (i=0; i<512; i++) { for (j=0; j<512 ... by $P1$ be $M_{1}$and that for $P2$ be $M_{2}$. The value of $M_{1}$ is: $0$ $2048$ $16384$ $262144$
A CPU has a $32 KB$ direct mapped cache with $128$ byte-block size. Suppose A is two dimensional array of size $512 \times512$ with elements that occupy $8$-bytes each. Consider the following two C code segments, $P1$ and $P2$. P1: for (i=0; i<512; i++) { for (j=0; j<512; j++ ... misses experienced by $P1$ be $M_{1}$and that for $P2$ be $M_{2}$. The value of $M_{1}$ is: $0$ $2048$ $16384$ $262144$
asked Sep 26, 2014 in CO and Architecture Rucha Shelke 7k views
52 votes
3 answers
12
GATE2006-78
Barrier is a synchronization construct where a set of processes synchronizes globally i.e., each process in the set arrives at the barrier and waits for all others to arrive and then all processes leave the barrier. Let the number of processes in the set ... $10$ need not be inside a critical section The barrier implementation is correct if there are only two processes instead of three.
Barrier is a synchronization construct where a set of processes synchronizes globally i.e., each process in the set arrives at the barrier and waits for all others to arrive and then all processes leave the barrier. Let the number of processes in the set be ... to $10$ need not be inside a critical section The barrier implementation is correct if there are only two processes instead of three.
asked Sep 26, 2014 in Operating System Rucha Shelke 8.8k views
19 votes
2 answers
13
GATE2006-76
Statement for Linked Answer Questions 76 & 77: A $3$-ary max heap is like a binary max heap, but instead of $2$ children, nodes have $3$ children. A $3$-ary heap can be represented by an array as follows: The root is stored in the first location, $a[0]$, nodes in the next level, from left to right, is stored ... $9, 6, 3, 1, 8, 5$ $9, 3, 6, 8, 5, 1$ $9, 5, 6, 8, 3, 1$
Statement for Linked Answer Questions 76 & 77: A $3$-ary max heap is like a binary max heap, but instead of $2$ children, nodes have $3$ children. A $3$-ary heap can be represented by an array as follows: The root is stored in the first location, $a[0]$ ... $1, 3, 5, 6, 8, 9$ $9, 6, 3, 1, 8, 5$ $9, 3, 6, 8, 5, 1$ $9, 5, 6, 8, 3, 1$
asked Sep 26, 2014 in DS Rucha Shelke 2.1k views
42 votes
4 answers
14
GATE2006-74
Consider two cache organizations. First one is $32 \hspace{0.2cm} KB$ $2-way$ set associative with $32 \hspace{0.2cm} byte$ block size, the second is of same size but direct mapped. The size of an address is $32 \hspace{0.2cm} bits$ in both cases . A $2-to-1$ ... . The value of $h_1$ is: $2.4 \text{ ns} $ $2.3 \text{ ns}$ $1.8 \text{ ns}$ $1.7 \text{ ns}$
Consider two cache organizations. First one is $32 \hspace{0.2cm} KB$ $2-way$ set associative with $32 \hspace{0.2cm} byte$ block size, the second is of same size but direct mapped. The size of an address is $32 \hspace{0.2cm} bits$ in both cases . A $2-to-1$ ... $h_1$ is: $2.4 \text{ ns} $ $2.3 \text{ ns}$ $1.8 \text{ ns}$ $1.7 \text{ ns}$
asked Sep 26, 2014 in CO and Architecture Rucha Shelke 12.4k views
42 votes
4 answers
15
GATE2006-71
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The number of vertices of degree zero in $G$ is: $1$ $n$ $n + 1$ $2^n$
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The number of vertices of degree zero in $G$ is: $1$ $n$ $n + 1$ $2^n$
asked Sep 26, 2014 in Graph Theory Rucha Shelke 7.2k views
21 votes
2 answers
16
GATE2006-70
The following functional dependencies are given: $ AB\rightarrow CD,AF\rightarrow D,DE\rightarrow F,$C\rightarrow G,F\rightarrow E,G\rightarrow A $ Which one of the following options is false? $ \left \{ CF \right \}^{*}=\left \{ ACDEFG \right \}$ $ \left \{ BG \right \}^{*}=\left \ ... $ \left \{ AB \right \}^{*}=\left \{ ABCDG \right \}$
The following functional dependencies are given: $ AB\rightarrow CD,AF\rightarrow D,DE\rightarrow F,$C\rightarrow G,F\rightarrow E,G\rightarrow A $ Which one of the following options is false? $ \left \{ CF \right \}^{*}=\left \{ ACDEFG \right \}$ $ \left \{ BG \right \}^{*}=\left \{ ABCDG ... $ \left \{ AB \right \}^{*}=\left \{ ABCDG \right \}$
asked Sep 26, 2014 in Databases Rucha Shelke 4.3k views
30 votes
7 answers
17
GATE2006-69
Consider the relation enrolled (student, course) in which (student, course) is the primary key, and the relation paid (student, amount) where student is the primary key. Assume no null values and no foreign keys or integrity constraints. Assume that amounts 6000, ... Plan 1 executes faster than Plan 2 for all databases For x = 9000, Plan I executes slower than Plan 2 for all databases
Consider the relation enrolled (student, course) in which (student, course) is the primary key, and the relation paid (student, amount) where student is the primary key. Assume no null values and no foreign keys or integrity constraints. Assume that amounts 6000, 7000, 8000 ... , Plan 1 executes faster than Plan 2 for all databases For x = 9000, Plan I executes slower than Plan 2 for all databases
asked Sep 26, 2014 in Databases Rucha Shelke 5.3k views
44 votes
5 answers
18
GATE2006-68
Consider the relation enrolled (student, course) in which (student, course) is the primary key, and the relation paid (student, amount) where student is the primary key. Assume no null values and no foreign keys or integrity constraints. ... for which Query3 returns strictly fewer rows than Query2 There exist databases for which Query4 will encounter an integrity violation at runtime
Consider the relation enrolled (student, course) in which (student, course) is the primary key, and the relation paid (student, amount) where student is the primary key. Assume no null values and no foreign keys or integrity constraints. Given the ... for which Query3 returns strictly fewer rows than Query2 There exist databases for which Query4 will encounter an integrity violation at runtime
asked Sep 26, 2014 in Databases Rucha Shelke 8k views
63 votes
6 answers
19
GATE2006-67
Consider the relation account (customer, balance) where the customer is a primary key and there are no null values. We would like to rank customers according to decreasing balance. The customer with the largest balance gets rank 1. Ties are not broke but ranks are skipped: if ... assigning ranks using ODBC. Which two of the above statements are correct? 2 and 5 1 and 3 1 and 4 3 and 5
Consider the relation account (customer, balance) where the customer is a primary key and there are no null values. We would like to rank customers according to decreasing balance. The customer with the largest balance gets rank 1. Ties are not broke but ranks are skipped: if ... order assigning ranks using ODBC. Which two of the above statements are correct? 2 and 5 1 and 3 1 and 4 3 and 5
asked Sep 26, 2014 in Databases Rucha Shelke 9.3k views
44 votes
1 answer
20
GATE2006-66
Consider the following snapshot of a system running $n$ processes. Process $i$ is holding $x_i$ instances of a resource $R$, $ 1\leq i\leq n$ . Currently, all instances of $R$ are occupied. Further, for all $i$, process $i$ has placed a request for an additional $y_i$ ... $ \max(x_{p},x_{q})>1$ $ \min(x_{p},x_{q})>1$
Consider the following snapshot of a system running $n$ processes. Process $i$ is holding $x_i$ instances of a resource $R$, $ 1\leq i\leq n$ . Currently, all instances of $R$ are occupied. Further, for all $i$, process $i$ has placed a request for an additional $y_i$ instances while holding the $x_i$ ... $ \max(x_{p},x_{q})>1$ $ \min(x_{p},x_{q})>1$
asked Sep 26, 2014 in Operating System Rucha Shelke 7.6k views
31 votes
7 answers
21
GATE2006-65
Consider three processes, all arriving at time zero, with total execution time of $10$, $20$ and $30$ units, respectively. Each process spends the first $\text{20%}$ of execution time doing I/O, the next $\text{70%}$ of time doing computation, and the last $\text{10%}$ of ... For what percentage of time does the CPU remain idle? $\text{0%}$ $\text{10.6%}$ $\text{30.0%}$ $\text{89.4%}$
Consider three processes, all arriving at time zero, with total execution time of $10$, $20$ and $30$ units, respectively. Each process spends the first $\text{20%}$ of execution time doing I/O, the next $\text{70%}$ of time doing computation, and the last $\text{10%}$ of time doing ... . For what percentage of time does the CPU remain idle? $\text{0%}$ $\text{10.6%}$ $\text{30.0%}$ $\text{89.4%}$
asked Sep 26, 2014 in Operating System Rucha Shelke 8.5k views
26 votes
4 answers
22
GATE2006-64
Consider three processes (process id $0$, $1$, $2$ respectively) with compute time bursts $2$, $4$ and $8$ time units. All processes arrive at time zero. Consider the longest remaining time first (LRTF) scheduling algorithm. In LRTF ties are broken by giving priority to the process with the lowest process id. The average turn around time is: $13$ units $14$ units $15$ units $16$ units
Consider three processes (process id $0$, $1$, $2$ respectively) with compute time bursts $2$, $4$ and $8$ time units. All processes arrive at time zero. Consider the longest remaining time first (LRTF) scheduling algorithm. In LRTF ties are broken by giving priority to the process with the lowest process id. The average turn around time is: $13$ units $14$ units $15$ units $16$ units
asked Sep 26, 2014 in Operating System Rucha Shelke 5.3k views
47 votes
5 answers
23
GATE2006-63, UGCNET-June2012-III: 45
A computer system supports $32$-bit virtual addresses as well as $32$-bit physical addresses. Since the virtual address space is of the same size as the physical address space, the operating system designers decide to get rid of ... made more efficient now Hardware support for memory management is no longer needed CPU scheduling can be made more efficient now
A computer system supports $32$-bit virtual addresses as well as $32$-bit physical addresses. Since the virtual address space is of the same size as the physical address space, the operating system designers decide to get rid of the virtual memory entirely. ... can be made more efficient now Hardware support for memory management is no longer needed CPU scheduling can be made more efficient now
asked Sep 26, 2014 in Operating System Rucha Shelke 10.6k views
34 votes
1 answer
24
GATE2006-62, ISRO2016-50
A CPU generates $32$-bit virtual addresses. The page size is $4$ KB. The processor has a translation look-aside buffer (TLB) which can hold a total of $128$ page table entries and is $4$-way set associative. The minimum size of the TLB tag is: $\text{11 bits}$ $\text{13 bits}$ $\text{15 bits}$ $\text{20 bits}$
A CPU generates $32$-bit virtual addresses. The page size is $4$ KB. The processor has a translation look-aside buffer (TLB) which can hold a total of $128$ page table entries and is $4$-way set associative. The minimum size of the TLB tag is: $\text{11 bits}$ $\text{13 bits}$ $\text{15 bits}$ $\text{20 bits}$
asked Sep 26, 2014 in Operating System Rucha Shelke 12.8k views
74 votes
6 answers
25
GATE2006-61
The atomic fetch-and-set $x, y$ instruction unconditionally sets the memory location $x$ to $1$ and fetches the old value of $x$ in $y$ without allowing any intervening access to the memory location $x$. Consider the following implementation of $P$ and $V$ ... -set, a pair of normal load/store can be used The implementation of $V$ is wrong The code does not implement a binary semaphore
The atomic fetch-and-set $x, y$ instruction unconditionally sets the memory location $x$ to $1$ and fetches the old value of $x$ in $y$ without allowing any intervening access to the memory location $x$. Consider the following implementation of $P$ and $V$ functions ... -set, a pair of normal load/store can be used The implementation of $V$ is wrong The code does not implement a binary semaphore
asked Sep 26, 2014 in Operating System Rucha Shelke 12.7k views
13 votes
1 answer
26
GATE2006-60
Consider the following C code segment. for (i = 0, i < n; i++) { for (j = 0; j < n; j++) { if (i%2) { x += (4*j + 5*i); y += (7 + 4*j); } } } Which one of the following is false? The code ... invariant computation There is scope of common sub-expression elimination in this code There is scope of strength reduction in this code There is scope of dead code elimination in this code
Consider the following C code segment. for (i = 0, i < n; i++) { for (j = 0; j < n; j++) { if (i%2) { x += (4*j + 5*i); y += (7 + 4*j); } } } Which one of the following is false? The code contains loop invariant computation There is scope of common sub-expression elimination in this code There is scope of strength reduction in this code There is scope of dead code elimination in this code
asked Sep 26, 2014 in Compiler Design Rucha Shelke 3.3k views
24 votes
3 answers
27
GATE2006-59
Consider the following translation scheme. $ S\rightarrow ER$ $ R\rightarrow ^{*}E\left \{ print('*'); \right \} R\mid \varepsilon $ $ E\rightarrow F+E\left \{ print('+'); \right \}\mid F $ $ F\rightarrow (S)\mid id \left \{ print(id.value); \right \} $ Here id is a token that represents ... $2 * 3 + 4$ $2 * +3 \ 4$ $2 \ 3 * 4 +$ $2 \ 3 \ 4+*$
Consider the following translation scheme. $ S\rightarrow ER$ $ R\rightarrow ^{*}E\left \{ print('*'); \right \} R\mid \varepsilon $ $ E\rightarrow F+E\left \{ print('+'); \right \}\mid F $ $ F\rightarrow (S)\mid id \left \{ print(id.value); \right \} $ Here id is a token that represents an ... $2 * 3 + 4$', this translation scheme prints $2 * 3 + 4$ $2 * +3 \ 4$ $2 \ 3 * 4 +$ $2 \ 3 \ 4+*$
asked Sep 26, 2014 in Compiler Design Rucha Shelke 4.2k views
15 votes
3 answers
28
GATE2006-58
Consider the following grammar: $S\rightarrow FR$ $ R\rightarrow * S\mid \varepsilon $ $ F\rightarrow id $ In the predictive parser table, M, of the grammar the entries M[S,id] and M[R,\$] respectively are $ \left \{ S\rightarrow FR \right \} $ and $ \left \{ R\ ... $ \left \{ F\rightarrow id \right \} $ and $ \left \{ R\rightarrow \varepsilon \right \} $
Consider the following grammar: $S\rightarrow FR$ $ R\rightarrow * S\mid \varepsilon $ $ F\rightarrow id $ In the predictive parser table, M, of the grammar the entries M[S,id] and M[R,\$] respectively are $ \left \{ S\rightarrow FR \right \} $ and $ \left \{ R\rightarrow \ ... $ \left \{ F\rightarrow id \right \} $ and $ \left \{ R\rightarrow \varepsilon \right \} $
asked Sep 26, 2014 in Compiler Design Rucha Shelke 3k views
47 votes
4 answers
29
GATE2006-57
Consider this C code to swap two integers and these five statements: the code void swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; } S1: will generate a compilation error S2: may generate a segmentation fault ... swap procedure correctly for some but not all valid input pointers S5: may add or subtract integers and pointers S1 S2 and S3 S2 and S4 S2 and S5
Consider this C code to swap two integers and these five statements: the code void swap (int *px, int *py) { *px = *px - *py; *py = *px + *py; *px = *py - *px; } S1: will generate a compilation error S2: may generate a segmentation fault at ... the swap procedure correctly for some but not all valid input pointers S5: may add or subtract integers and pointers S1 S2 and S3 S2 and S4 S2 and S5
asked Sep 26, 2014 in Programming Rucha Shelke 8.1k views
10 votes
3 answers
30
GATE2006-56, ISRO2009-58
Consider the following code written in a pass-by-reference language like FORTRAN and these statements about the code. subroutine swap(ix,iy) it = ix L1 : ix = iy L2 : iy = it end ia = 3 ib = 8 call swap (ia, ib+5) print *, ia, ib end S1: The ... 8 S5: The program will print 13 and -2 Exactly the following set of statement(s) is correct: S1 and S2 S1 and S4 S3 S1 and S5
Consider the following code written in a pass-by-reference language like FORTRAN and these statements about the code. subroutine swap(ix,iy) it = ix L1 : ix = iy L2 : iy = it end ia = 3 ib = 8 call swap (ia, ib+5) print *, ia, ib end S1: The compiler will generate ... and 8 S5: The program will print 13 and -2 Exactly the following set of statement(s) is correct: S1 and S2 S1 and S4 S3 S1 and S5
asked Sep 26, 2014 in Programming Rucha Shelke 3.8k views
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