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Answers by anjali007

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1

Testbook Test Series: Computer Networks - Sliding Window
Frames of 20000 bytes are sent over 10 MBps full duplex link between 2 hosts. Propagation is 45 ms.Suppose that the sliding window protocol is used with the sender window size of 16 and acknowledgements are piggybacked.After sending 35 frames , what is the minimum time sender will have to wait before starting transmission of the next frame

answered in Computer Networks Jan 18, 2019

1.2k views

2 votes

2

MADEEASY TEST SERIES
WHICH OF THE FOLLOWING IS NOT A VALID DESCRIPTION OF THE INPUT ALPHABET SET? ANSWER IS GIVEN AS {01,110,NULL} WITH A EXPLAINATION THAT ALPHABET CANNOT CONTAIN NULL . NOW I HAVE A QUESTIONN REGARDING THAT {0,1,01 } IS NOT ALPHABET WHY ? AND {01,10} IS ALPHABET WHY ?? ... ? AS I KNOW FOR {0,1,01} IS WHEN WE WRITE 01 WE CANT DIFFERENTIATE IT IS FROMM 0 AND 1 OR 01?? RIGHT??

answered in Theory of Computation Jan 11, 2019

885 views

1 vote

3

What is difference between Flooding and Broadcasting ?
Distance vector uses broadcasting for transfer of vectors among it neighbors. but can it use flooding for this purpose. i am getting confused between flooding and broadcasting.

answered in Computer Networks Jan 10, 2019

784 views

0 votes

4

Identifying Regular Languages
Identify if the language is regular or not? {a^m b^n / m=n or m!=n }

answered in Theory of Computation Jan 10, 2019

224 views

1 vote

5

morris mano
If a computer has 128 operation codes and 512 k address, how many bits would be required for (1) Single address instruction (2) Two address instruction

answered in CO and Architecture Dec 29, 2018

1.4k views

4 votes

6

Relation_5_36
Consider two relations R1 and R2, with n, attributes A1, A2, A3,…….., An. The functional dependencies on R1 and A1 → A2, A2→ A3,…...An-1→ An and R2 are A1→ A2, A2→ A3, ……..An-1, An→ A1. Then highest normal forms of R1 and R2 are respectively, (A) 1NF,BCNF (B) 2NF,2NF (C) 3NF,3NF (D) None

answered in Databases Dec 29, 2018

934 views

1 vote

7

GATE Overflow | Mock GATE | Test 1 | Question: 2
"He found a $\underline{lucrative}$ assignment." Which of the following words is nearly same in the meaning as that of the underlined word? Good Profitable Excellent Significant'

answered in Verbal Aptitude Dec 27, 2018

709 views

4 votes

8

GATE Overflow | Mock GATE | Test 1 | Question: 65
Consider the following operators used in an arbitrary regular expression parsing. (In all the below statements, capital letters denote the operator. Ignore quotes.) 'xPy' denotes a double occurrence of either x or y. ... Which of the following strings does not belong to the above given regular expression? bbaaabba baaabb bbbaaaa baabbaaaa

answered in Theory of Computation Dec 27, 2018

1.2k views

1 vote

9

Zeal Test Series 2018: Compiler Design - Target Code Generation
Many compilers are divided into two largely independent parsers: a front- end, responsible for analyzing the source code, and a back -end, responsible for generating the target code. What is the most important motivation for ... a compiler is build by a large team of programmers. 4.To minimize memory requirements on modern machines.

answered in Compiler Design Dec 27, 2018

704 views

1 vote

10

Zeal Test Series 2018: Compiler Design - Runtime Environments
The two basic operations that are often performed with the symbol table are: 1. Set and reset 2. Set and insert 3. Insert and lookup 4. Reset and lookup

answered in Compiler Design Dec 27, 2018

1.6k views

4 votes

11

Geeks for geeks gate 2016 mock
In the Lexical Analysis, regular expression can be used to model A) the structures of lexemes with fixed length identifier excluded B) the structure of tokens C) the structure of tokens but not lexemes D) the structure of lexemes with variable length identifier included

answered in Compiler Design Dec 27, 2018

2.1k views

3 votes

12

Ace Test Series: CO & Architecture - Cache Memory Tag Size
The cache can hold 64 KB .data is transferred between main memory and cache in blocks of 4 bytes each.the main memory consist of 16 M Bytes . if the cache memory is 16-way set associative,Then the hexa decimal main memory address AAAAAA is mapped into which cache set?

answered in CO and Architecture Dec 27, 2018

837 views

1 vote

13

answered in Theory of Computation Dec 27, 2018

293 views

1 vote

14

How segmentation and fragmentation is different in computer networks
How segmentation and fragmentation are different in computer networks Please help!

answered in Computer Networks Dec 26, 2018

1.3k views

2 votes

15

ME test series
Consider the following CFG, with S as start symbol: S -> aA l CB A -> BaA I e B-> bB l Abc l e C -> B (HERE ‘e’ IS EPSILON OR NULL PRODUCTION) FIRST(B)? FOLLOW(C)?

answered in Compiler Design Dec 24, 2018

978 views

3 votes

16

MadeEasy Test Series: Operating System - Resource Allocation
Consider a system which has $28$ instances of a resource $P$ such that $4+n$ processes share them,$4$ process request $5$ instances of $'P'.$ If $n$ process request $5$ instances of same resources what is the maximum value of $n$ such that system is in safe state______

answered in Operating System Dec 22, 2018

2.9k views

3 votes

17

selfdoubt
Give an example of DFA minimization where the initial state is final state and there are one or more final states

answered in Theory of Computation Dec 22, 2018

1.2k views

2 votes

18

GATE-ME-2017
If you choose plan P, you will have to ___ plan Q, as these two are mutually_____. (a) forgo, exclusive (b) forget inclusive (c) accept, exhaustive (d) adopt, intrusive

answered in Verbal Aptitude Dec 21, 2018

743 views

0 votes

19

MadeEasy Test Series: Operating System - Process Synchronization
The definition of progress is: When no process is in the critical section and another process wants to enter the critical section, then it should be allowed without any delay Suppose we do a context switch from 1 ... critical section, the second process is unable to enter the critical section. How does this achieve progress then?

answered in Operating System Dec 21, 2018

542 views

1 vote

20

Determine Access time of system
If Cache access time is 10 ns . main memory access time is 150 ns. Cache hit rate is 99%. Determine effective access time of system.

answered in CO and Architecture Dec 21, 2018

645 views

0 votes

21

Self doubt
If the complement of a language L is not regular , then L may satisfy pumping lemma for regular languages. Is this statement correct?

answered in Theory of Computation Dec 21, 2018

413 views

6 votes

22

MadeEasy Subject Test 2019: Algorithms - Sorting
Suppose there are 4 sorted list of 16 elements each. If we merge these lists into a single sorted list of 64 elements. The key comparisons that are needed in the worst case using an efficient algorithm are

answered in Algorithms Dec 21, 2018

2.3k views

0 votes

23

ECA_TOC_Q10
Suppose L={1^m | m=2x+4y, x,y>= 0} is any regular language over Σ = {1}. Which of the following is the regular expression r such that L(r)=L. (A) 1* (B) (11)* (C) (111)* (D) none

answered in Theory of Computation Dec 19, 2018

304 views

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