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12661

Kenneth Rosen Edition 6th Exercise 6.4 Example 16 (Page No. 437)
Can't understand what they did here. How did they find out the value of xG(x)?Example 444. Chapter: Advanced Counting Techniques

MrPeppermint asked in Mathematical Logic Dec 9, 2017

by MrPeppermint

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12662

solve : reflexive relation
R = { (x,y) ∈ z X z : x-y is even integer } is this reflexive how to prove and what this set is representing , z= set of integers

sumit goyal 1 asked in Programming in C Dec 9, 2017

by sumit goyal 1

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7 votes

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12663

Access link vs Control Link
Access Link : 1) An access link from record A points to the record of the closest enclosing block in the program. 2) The chain of access links traces the static structure (think: scopes) of the program. 3) Refers to non-local data in other ... execution of the program. 3) Refers to non-local data in other activation record. (NOT CLEAR) Can anyone explain this line ?

VS asked in Compiler Design Dec 9, 2017

by VS

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12664

Doubt: Andrew S. Tanenbaum 4th ed.
"processes on the Internet are not required to use TCP or UDP. If a user on machine A decides to use some new transport protocol to talk to a user on machine B (for example, for a multimedia application), introduction of a NAT ... because the NAT box will not be able to locate the TCP Source port correctly. " Please explain this. especially last line.

Diksha Aswal asked in Computer Networks Dec 8, 2017

by Diksha Aswal

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12665

pranab ray asked in Theory of Computation Dec 8, 2017

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12666

context free language
Consider the following languages. The number of the above languages L1, L2, L3 and L4 are context free languages is ______. Answer given is 2 ,L2 and L4.My doubt is why L2 why not L3.I also got 2 .pls someone explain

set2018 asked in Theory of Computation Dec 8, 2017

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1 vote

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12667

identify the language ?
Let L = {ambnbkdl⎪(n+k = odd) only if m = l; m, n, k, l > 0}. Which of the following is true about L? 1)L is CFL but not DCFL 2)L is regular but not CFL 3)L is DCFL but not regular 4)none of the above

set2018 asked in Theory of Computation Dec 8, 2017

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12668

segmentation with paging
For each of the four processes P1, P2, P3 and P4. The total size in kilobytes (KB) and the number of segments are given below. Process Total size (in KB) Number of segments P1 195 4 P2 254 5 P3 45 3 P4 364 8 The page size is 1 KB. The size ... the query as to ......each segment will require page table or not? why only one page table is taken per process and not per segment

A_i_$_h asked in Operating System Dec 8, 2017

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12669

Pointer doubt
a and &a are the same thing where a is array name? I am unable to understand diff between (a+1) and (&a+1) when assigned to a pointer #include <stdio.h> int main() { int a[5] = {1,2,3,4,5}; int *ptr = (int*)(&a+1); printf("%d %d", *(a+1), *(ptr-1)); return 0; }

Kiran Karwa asked in Programming in C Dec 8, 2017

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12670

Algorithms:- Test series Complexity
operations on the list in this order insert, O(n log n) decrease key, O(n) find operations. What is the time complexity of all these operations put together? A O(n) B O(n2) C O(n2 log n) D O$(sqrt(n))$

rahul sharma 5 asked in Algorithms Dec 8, 2017

by rahul sharma 5

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12671

Algorithms: Test Series(Hashing)
Consider an initially empty symbol table implemented using a hash table of size ‘B’ with hash function h(C) = C mod B. In worst case for any possible sequence of inputs where N > B, what is the order of growth of inserting N (key, value) pairs with distinct key into table, if separate chaining is used to resolve collisions? A Ο(N) B Ο (N log N) C Ο(N3) D Ο(N2)

rahul sharma 5 asked in Algorithms Dec 8, 2017

by rahul sharma 5

884 views

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12672

self_doubt theory of computation
....... how can we solve question by this table need help

air1ankit asked in Theory of Computation Dec 8, 2017

292 views

1 vote

0 answers

12673

Abhijeet_Kumar asked in Databases Dec 8, 2017

by Abhijeet_Kumar

373 views

4 votes

0 answers

12674

Abhijeet_Kumar asked in Databases Dec 8, 2017

by Abhijeet_Kumar

410 views

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12675

The value of the dot product of the eigenvectors
What does it means . Plz give an example. The value of the dot product of the eigenvectors.

hem chandra joshi asked in Mathematical Logic Dec 8, 2017

by hem chandra joshi

190 views

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12676

Abhijeet_Kumar asked in Databases Dec 8, 2017

by Abhijeet_Kumar

424 views

1 vote

0 answers

12677

Abhijeet_Kumar asked in Databases Dec 8, 2017

by Abhijeet_Kumar

234 views

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0 answers

12678

Difference between Co-RE and Non RE language.
Can someone please tell me the difference between Non R.E and CoRE language ?

Rajesh R asked in Theory of Computation Dec 8, 2017

607 views

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12679

gateforum test series

NK987 asked in Programming in C Dec 8, 2017

by NK987

277 views

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12680

GateQuestion
In following question according to bankers algorithm the safe state comes out to be p1 p3 p0 p4 p2 my question is why does the process p0 is executed before p4.

Derek Frost asked in Operating System Dec 8, 2017

613 views

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12681

previous year
please explain this solution..

Rudra Pratap asked in Algorithms Dec 8, 2017

by Rudra Pratap

161 views

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12682

The packets in IP layer are called datagrams?
What is meant by packet as I know packet term is used in Network layer whereas datagrams term used in transport layer ~.

hem chandra joshi asked in Computer Networks Dec 8, 2017

by hem chandra joshi

529 views

3 votes

0 answers

12683

GATE 2018
GATE CS 2018 has only 1 paper set. (4th Feb , 9:00-12:00) Why only single set?? Does it mean that this time less number of students appears for GATE CS paper??

Harsh Mehta asked in GATE Dec 8, 2017

4.5k views

1 vote

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12684

Random Test Series
A) Yes B) No C) Cannot Say D) None

yogi_p asked in Computer Networks Dec 8, 2017

by yogi_p

471 views

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12685

Checkpoints in Data Recovery
Are they in the syllabus? I believe not since nothing is specified in the syllabus but I've seen questions in made easy test series regarding undo and redo list. ... Give contents of Undo and Redo list.

Tuhin Dutta asked in Databases Dec 8, 2017

1.3k views

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12686

Internet Protocol
Which one is private IP? 1)172.15.23.49 2)172.28.23.49

srestha asked in Computer Networks Dec 8, 2017

219 views

1 vote

0 answers

12687

IP address
In the network 200.10.11.144/27, the fourth octet (in decimal) of the last IP address of the network, which can be assign to a host is__________

srestha asked in Computer Networks Dec 8, 2017

621 views

1 vote

0 answers

12688

Internet Protocol
The checksum in IP must be recomputed at every router,because of change in __________ fields? A) TTL,Option, Datagram Length , Offset B)TTL , Header Length , Offset , TOS

srestha asked in Computer Networks Dec 8, 2017

2.0k views

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12689

BFS algorithm
$State \ TRUE \ OR \ FALSE :\\ Given \ an \ undirected \ connected \ graph \ with \ binary \ edge \ weights \ the \\ shortest \ path \ b/w \ any \ two \ nodes \ can \ be \ found \ in \ O(E)?$

saxena0612 asked in Algorithms Dec 8, 2017

339 views

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12690

Find Number of Interfaces
Suppose there are three routers between a source and destination. Ignore fragmentation. An IP datagram sent from the source to the destination will travel over how many interfaces? How many forwarding tables will be indexed to move the datagram from the source to destination? A. ... . 6,4 The Answer is given as C) How We have 8 interfaces ? I am only able to figure out 4.

yogi_p asked in Computer Networks Dec 8, 2017

by yogi_p

2.4k views

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