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Answers by kvkumar

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1
answered Nov 7, 2017 in Algorithms 402 views
7 votes
2
Which of the following statements about synchronous and asynchronous I/O is NOT true? An ISR is invoked on completion of I/O in synchronous I/O but not in asynchronous I/O In both synchronous and asynchronous I/O, an ISR (Interrupt Service Routine) is invoked after completion of ... /O, the process waiting for the completion of I/O is woken up by the ISR that is invoked after the completion of I/O
answered Dec 24, 2016 in CO and Architecture 8.4k views
1 vote
3
The hands of a clock are observed continuously from 12:45 p.m. onwards. They will be observed to point in the same direction some time between (A) 1:03 p.m. and 1:04 p.m. ; (B) 1:04 p.m. and 1:05 p.m. ; (C) 1:05 p.m. and 1:06 p.m. ; (D) 1:06 p.m. and 1:07 p.m.
answered Jul 14, 2016 in Unknown Category 516 views
4 votes
4
Repeated execution of simple computation may cause compounding of round-off errors syntax errors run-time errors logic errors
answered Jul 1, 2016 in Digital Logic 2k views
1 vote
5
Overlaying requires use of a loader allows larger programs, but requires more effort is most used on large computers is transparent to the user
answered Jul 1, 2016 in Operating System 2.2k views
1 vote
6
Relative to the program translated by a compiler, the same program when interpreted runs Faster Slower At the same speed May be faster or slower
answered Jul 1, 2016 in Compiler Design 2.3k views
2 votes
7
An interrupt in which the external device supplies its address as well as the interrupt requests is known as vectored interrupt maskable interrupt non maskable interrupt designated interrupt
answered Jul 1, 2016 in CO and Architecture 2.7k views
3 votes
8
If a square matrix A satisfies $A^TA=I$, then the matrix $A$ is Idempotent Symmetric Orthogonal Hermitian
answered Jul 1, 2016 in Linear Algebra 1.9k views
3 votes
9
The join operation can be defined as a cartesian product of two relations followed by a selection a cartesian product of two relations a union of two relations followed by cartesian product of the two relations a union of two relations
answered Jul 1, 2016 in Databases 1.8k views
1 vote
10
2 votes
11
The term Phong associated with Ray tracing shading Hiddenline removal a game
answered Jul 1, 2016 in Computer Graphics 2k views
4 votes
12
Range of IP Address from 224.0.0.0 to 239.255.255.255 are Reserved for loopback Reserved for broadcast Used for multicast packets Reserved for future addressing
answered Jul 1, 2016 in Computer Networks 2.1k views
9 votes
13
IEEE 802.11 is standard for Ethernet Bluetooth Broadband Wireless Wireless LANs
answered Jul 1, 2016 in Computer Networks 1.7k views
3 votes
14
In UML diagram of a class state of object cannot be represented state is irrelevant state is represented as an attribute state is represented as a result of an operation
answered Jul 1, 2016 in IS&Software Engineering 2.6k views
1 vote
15
A task in a blocked state is executable is running must still be placed in the run queues is waiting for some temporarily unavailable resources
answered Jul 1, 2016 in Operating System 1.6k views
2 votes
16
Ring counter is analogous to Toggle Switch Latch Stepping Switch S-R flip flop
answered Jul 1, 2016 in Digital Logic 2.5k views
3 votes
18
Virtual memory is Part of Main Memory only used for swapping A technique to allow a program, of size more than the size of main memory, to run Part of secondary storage used in program execution None of these
answered Jul 1, 2016 in Operating System 1.9k views
6 votes
19
What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them? Partitioning Multi-tasking Windowing Paging
answered Jul 1, 2016 in Operating System 1.9k views
2 votes
20
Phase transition for each bit are used in Amplitude modulation Carrier modulation Manchester encoding NRZ encoding
answered Jul 1, 2016 in Computer Networks 2.5k views
1 vote
21
An Ethernet hub functions as a repeater connects to a digital PBX connects to a token-ring network functions as a gateway
answered Jul 1, 2016 in Computer Networks 2.3k views
5 votes
22
The principal of the locality of reference justifies the use of virtual memory interrupts main memory cache memory
answered Jul 1, 2016 in CO and Architecture 4.6k views
3 votes
23
The term ‘aging’ refers to booting up the priority of the process in multi-level of queue without feedback. gradually increasing the priority of jobs that wait in the system for a long time to remedy infinite blocking keeping track of the following a ... letting job reside in memory for a certain amount of time so that the number of pages required can be estimated accurately.
answered Jul 1, 2016 in Operating System 2.6k views
2 votes
24
What is routing algorithm used by OSPF routing protocol? Distance vector Flooding Path vector Link state
answered Jun 30, 2016 in Computer Networks 2.1k views
4 votes
25
How many states are there in a minimum state deterministic finite automaton accepting the language $L = \{w \mid w \in \{0,1\}^*,$ number of 0's is divisible by 2 and number of 1's is divisible by 5, respectively $\}$? 7 9 10 11
answered Jun 30, 2016 in Theory of Computation 3k views
17 votes
26
What is the output of the following C program? #include<stdio.h> #define SQR(x) (x*x) int main() { int a; int b=4; a=SQR(b+2); printf("%d\n",a); return 0; } 14 36 18 20
answered Jun 30, 2016 in Programming 3.2k views
19 votes
27
An aggregation association is drawn using which symbol? A line which loops back on to the same table A small open diamond at the end of a line connecting two tables A small closed diamond at the end of a line connecting two tables A small closed triangle at the end of a line connecting two tables
answered Jun 30, 2016 in Databases 3.4k views
1 vote
28
A priority queue  Q is used to implement a stack S that stores characters .PUSH(C) is implemented as Insert(Q,C,K)  where K is an appropriate integer key chosen by the implementation .POP is implementd as DELETEMIN(Q) . For a sequence of PUSH operations, the keys chosen are in ... first in any case , while this element would be at the bottom of the stack so then how will I be able to do this ?
answered Jun 30, 2016 in DS 1.6k views
0 votes
29
how to implement multiple stack in array using c
answered Jun 30, 2016 in Unknown Category 91 views
3 votes
30
IEEE 1394 is related to $RS-232$ $USB$ Firewire PCI
answered Jun 29, 2016 in Computer Peripherals 2.3k views
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