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Recent questions tagged nielit-2018

3 votes
3 answers
31
NIELIT 2018-31
Identify the subnet mask for the given direct broadcast address of subnet is $201.15.16.31$ $255.255.192.192$ $255.255.255.198$ $255.255.255.240$ $255.255.257.240$
Identify the subnet mask for the given direct broadcast address of subnet is $201.15.16.31$$255.255.192.192$$255.255.255.198$$255.255.255.240$$255.255.257.240$
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1 votes
3 answers
32
NIELIT 2018-32
The context free grammar $S \rightarrow aSb \mid bSa \mid \epsilon$ generates: Equal number of a’s and b’s Unequal number of a’s and b’s Any number of a’s followed by any number of b’s Any number of b’s followed by any number of a’s
The context free grammar $S \rightarrow aSb \mid bSa \mid \epsilon$ generates:Equal number of a’s and b’sUnequal number of a’s and b’sAny number of a’s followed...
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1 votes
3 answers
33
NIELIT 2018-33
The language $\{ W^a X^b Y^{a+b} \mid a, b, >1\}$ is Regular Context-free but not regular Context sensitive but not context free Type$=0$ but not context sensitive
The language $\{ W^a X^b Y^{a+b} \mid a, b, >1\}$ isRegularContext-free but not regularContext sensitive but not context freeType$=0$ but not context sensitive
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0 votes
2 answers
35
NIELIT 2018-35
Baud rate measures the number of ____ transmitted per second Symbols Bits Byte None of these
Baud rate measures the number of ____ transmitted per secondSymbolsBitsByteNone of these
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2 votes
3 answers
36
NIELIT 2018-36
______ is NOT a part of the ACID properties Inconsistency Consistency Atomicity Isolation
______ is NOT a part of the ACID propertiesInconsistencyConsistencyAtomicityIsolation
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1 votes
3 answers
37
NIELIT 2018-37
The smallest element that can be found in time ____ in a binary max heap. $O(n \log n)$ $O( \log n)$ $O(n)$ $O(n^2)$
The smallest element that can be found in time ____ in a binary max heap.$O(n \log n)$$O( \log n)$$O(n)$$O(n^2)$
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0 votes
1 answer
38
NIELIT 2018-38
Find the effective access time for the memory for the given data. Page fault service time $=8$ ms Average memory access time $=20$ ns One page fault is generated for every memory access $=10^6$ $29$ ns $33$ ns $28$ ns $30$ ns
Find the effective access time for the memory for the given data.Page fault service time $=8$ msAverage memory access time $=20$ nsOne page fault is generated for every m...
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1 votes
3 answers
39
NIELIT 2018-39
A RAM chip has a capacity of $1024$ words of $8$ bits each $(1K \times 8)$. The number of $2 \times 4$ decoders with enable line needed to construct a $32 K \times 8$ RAM from $1K \times 8$ RAM is $4$ $5$ $6$ $7$
A RAM chip has a capacity of $1024$ words of $8$ bits each $(1K \times 8)$. The number of $2 \times 4$ decoders with enable line needed to construct a $32 K \times 8$ RAM...
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0 votes
3 answers
40
NIELIT 2018-40
Consider the following Finite State Automaton. The language accepted by the automaton is given by the regular expression. $ab^*b^*$ $a^*b^*$ $b^*b$ $b^*ab^*$
Consider the following Finite State Automaton. The language accepted by the automaton is given by the regular expression.$ab^*b^*$$a^*b^*$$b^*b$$b^*ab^*$
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1 votes
1 answer
41
NIELIT 2018-41
____ is used to convert from recursive to iterative implementation of an algorithm Array Tree Stack Queue
____ is used to convert from recursive to iterative implementation of an algorithmArrayTreeStackQueue
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1 votes
2 answers
42
NIELIT 2018-42
____ symbol is used to denote derived attributes in ER model Dashed ellipse Squared ellipse Ellipse with attribute name underlined Rectangular Box
____ symbol is used to denote derived attributes in ER modelDashed ellipseSquared ellipseEllipse with attribute name underlinedRectangular Box
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1 votes
3 answers
44
NIELIT 2018-44
Time to Live(TTL) field in the IP datagram is used ______ to optimize throughput to prevent packet looping to reduce delays to prioritize packets
Time to Live(TTL) field in the IP datagram is used ______to optimize throughputto prevent packet loopingto reduce delaysto prioritize packets
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2 votes
3 answers
45
NIELIT 2018-45
______ transport layer protocol is used to support electronic mail SNMP IP SMTP TCP
______ transport layer protocol is used to support electronic mailSNMPIPSMTPTCP
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1 votes
1 answer
46
NIELIT 2018-46
The hexadecimal representation of $(632)_8$ is $19A$ $198$ $29A$ $291$
The hexadecimal representation of $(632)_8$ is$19A$$198$$29A$$291$
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1 votes
1 answer
47
NIELIT 2018-47
______ sorting algorithms has the lowest worst-case complexity. Selection Sort Bubble Sort Merge Sort Quick Sort
______ sorting algorithms has the lowest worst-case complexity.Selection SortBubble SortMerge SortQuick Sort
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0 votes
2 answers
48
NIELIT 2018-48
Decreasing the RAM causes fewer page faults more page faults virtual memory gets increased virtual memory gets decreased
Decreasing the RAM causesfewer page faultsmore page faultsvirtual memory gets increasedvirtual memory gets decreased
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5 votes
3 answers
49
NIELIT 2018-49
The following table has two attributes $X$ and $Y$ where $X$ is the primary key and $Y$ is the foreign key referencing $X$ ... $(4,3)$ and $(6,4)$ $(2,4)$ and $(7,2)$ $(3,2)$ and $(9,5)$ $(3,4), (4,5)$ and $(6,4)$
The following table has two attributes $X$ and $Y$ where $X$ is the primary key and $Y$ is the foreign key referencing $X$ with on-delete cascade.$\begin{array}{|c|c|} \h...
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0 votes
1 answer
50
NIELIT 2018-50
The process executes the following code and after execution ______ number of child process get created fork(); fork(); fork(); fork(); $4$ $1$ $15$ $16$
The process executes the following code and after execution ______ number of child process get createdfork(); fork(); fork(); fork();$4$$1$$15$$16$
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0 votes
2 answers
51
NIELIT 2018-51
_____ is holding an entry for each terminal symbol and is acting as permanent database. Variable Table Terminal Table Keyword Table Identifier Table
_____ is holding an entry for each terminal symbol and is acting as permanent database.Variable TableTerminal TableKeyword TableIdentifier Table
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0 votes
2 answers
52
NIELIT 2018-52
In the disk, swap space is used to _______. save XML files save process data save drivers save HTML files
In the disk, swap space is used to _______.save XML filessave process datasave driverssave HTML files
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5 votes
5 answers
54
NIELIT 2018-54
______ to evaluate an expression without any embedded function calls. Two stacks are required one stack is needed Three stacks are required More than three stacks are required
______ to evaluate an expression without any embedded function calls.Two stacks are requiredone stack is neededThree stacks are requiredMore than three stacks are require...
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1 votes
3 answers
55
NIELIT 2018-55
Maximum number of superkeys for the relation schema $R(X,Y,Z,W)$ with $X$ as the key is $6$ $8$ $9$ $12$
Maximum number of superkeys for the relation schema $R(X,Y,Z,W)$ with $X$ as the key is$6$$8$$9$$12$
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0 votes
4 answers
56
NIELIT 2018-56
Identify the total number of tokens in the given statement printf("A%B=",&i); $7$ $8$ $9$ $13$
Identify the total number of tokens in the given statementprintf("A%B=",&i);$7$$8$$9$$13$
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0 votes
1 answer
57
NIELIT 2018-57
In a system, counting semaphore was initialized to $10$, then $6P$(wait) operations and $4V$ (signal) operations were completed on this semaphore. So _____ is the final value of the semaphore. $7$ $8$ $13$ $12$
In a system, counting semaphore was initialized to $10$, then $6P$(wait) operations and $4V$ (signal) operations were completed on this semaphore. So _____ is the final v...
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1 votes
3 answers
58
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 $3$ NF BCNF None of the above
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) ...
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2 votes
2 answers
59
NIELIT 2018-59
$(A+C’)(B’+C’)$ simplifies to $AC’+B’$ $C(A’+B’)$ $BC’+A$ $AB’+C’$
$(A+C’)(B’+C’)$ simplifies to$AC’+B’$$C(A’+B’)$$BC’+A$$AB’+C’$
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1 votes
1 answer
60
NIELIT 2018-60
If the period of a signal is $100$ ms. Then its frequency in Hertz is ______ $10$ $100$ $1000$ $10000$
If the period of a signal is $100$ ms. Then its frequency in Hertz is ______$10$$100$$1000$$10000$
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