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14
votes
1
GATE IT 2008 | Question: 5
Which of the following regular expressions describes the language over$\{0, 1\}$ consisting of strings that contain exactly two $1$'s? $(0 + 1)^ * \ 11(0 + 1) ^*$ $0 ^* \ 110 ^*$ $0 ^* 10 ^* 10 ^*$ $(0 + 1) ^* 1(0 + 1) ^* 1 (0 + 1) ^*$
answered
in
Theory of Computation
Mar 7, 2017
8.5k
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gateit-2008
theory-of-computation
regular-expression
easy
0
votes
2
GATE CSE 1992 | Question: 02,xvii
Which of the following regular expression identities is/are TRUE? $r^{(^\ast)} =r^\ast$ $(r^\ast s^\ast)=(r+s)^\ast$ $(r+s)^\ast = r^\ast + s^\ast$ $r^\ast s^\ast = r^\ast+s^\ast$
answered
in
Theory of Computation
Mar 7, 2017
14.5k
views
gate1992
theory-of-computation
regular-expression
easy
multiple-selects
3
votes
3
How to find CSL or not?
How to find that wether the perticular given grammar is CSL or not... what is the basic method used for that... like any language given and it is asked wether its cfl, csl or dcfl... how to check for CSL?? please provide proper explaination and example for that.
answered
in
Theory of Computation
Dec 3, 2016
904
views
1
vote
4
IP addressing
In class C , if subnet mask is 255.255.255.224 then calculates number of subnet?
answered
in
Computer Networks
Aug 31, 2016
3.1k
views
12
votes
5
GATE CSE 2016 Set 1 | Question: 55
A sender uses the Stop-and-Wait $\text{ARQ}$ protocol for reliable transmission of frames. Frames are of size $1000$ ... $100$ milliseconds. Assuming no frame is lost, the sender throughput is ________ bytes/ second.
answered
in
Computer Networks
Apr 8, 2016
26.3k
views
gatecse-2016-set1
computer-networks
stop-and-wait
normal
numerical-answers
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