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answered in Databases Nov 22, 2017

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no of inedequate states in Compiler design
For the below given grammar: S→-S S→S-a S→a The number of inadequate states (states which have conflicts) and number of shift reduce conflicts are _____ and _____ respectively.

answered in Compiler Design Nov 20, 2017

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made easy
Q9-Consider the following grammar: S → aPbSQ | a Q → t | ε P → r The number of states will reduce when a LALR(1) parse is computed out of CLR(1) parser for the above grammar _____. made easy solution my solution please correct me if i wrong no of state is reduce =6?

answered in Compiler Design Nov 20, 2017

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Virtual Gate Test Series: Computer Networks - Sequence Number
Consider bandwidth of line is $100$ Mbps and the sequence number of the field consists $32$ bits on a TCP machine. How much time it will take to cover all possible sequence numbers? ________________ sec (integer value only). Mine was $ 343.59$, so $344$ but my answer is wrong.

answered in Computer Networks Nov 18, 2017

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Virtual Gate Test Series: Computer Networks - Subnet Mask
For class $B$ network, all even bit positions are selected for subnet mask bits. What is the possible subnet mask? $(A) 255.25.170.170$ $(B) 255.255.85.85$ $(C) 255.255.255.240$ $(D)$ None In this question, my doubt is how we can assign subnet mask like this can we? Subnet bits should be taken in continuation from host bits right?

answered in Computer Networks Nov 18, 2017

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MadeEasy Subject Test: Computer Networks - Application Layer Protocols
Suppose you needed to use HTTP to download a webpage with 3 embedded images.The total no of messages saved between client ans server starting from initiates TCP connection to receive the third object and close the connection when using persistent HTTP instead of non persistent HTTP are --------

answered in Computer Networks Nov 18, 2017

576 views

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AVL tree
Please provide a step by step solution to this problem. Create an AVL tree for the nodes A,Z,B,C,X,D,E. The number of leaves in the resultant tree is____________.

answered in DS Nov 15, 2017

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stack
The size of stack after performing above datastrcuture push(5) push6) push(7) pop,max,push(6),push(8),pop,pop,max,push(5) (in bytes).Assume integer can be stored in 4 bytes.max() reports current maximum among all elements of stack

answered in Programming in C Nov 14, 2017

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TLB HITS
What is the average memory access time (correct to two decimal places) when you have the following memory hierarchy? Assume that (i) the cache uses physical addresses, (ii) the CPU stalls until the data is delivered, (iii) everything fits into the memory, and (iv) the hardware does the page table walk and updates TLB.

answered in Databases Nov 13, 2017

680 views

5 votes

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probability
Consider a coin with probability P to be heads. What is the probability that the first head will appear on the even numbered tosses? (A) (1 - P) / 2 (B) (1 - P) / (2 - P) (C) (1 - P) / (3 - P) (D) 1 / (P (1 - P))

answered in Probability Nov 11, 2017

604 views

1 vote

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Get method
The conditional GET mechanism a. Imposes conditions on the objects to be requested b. Limits the number of response from a server c. Helps to keep a cache upto date d. None of the above

answered in Computer Networks Nov 11, 2017

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answered in Computer Networks Nov 10, 2017

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FLOW CONTROL CN

answered in Computer Networks Nov 10, 2017

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answered in Computer Networks Nov 10, 2017

436 views

1 vote

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Multi Processing OS
In Multi Processing OS Maximum CPU Utilization can be achieved. Maximum throughput is achieved. which of the following is true ? a) 1 only b) 2 only c) both d) none ANS - A) 2 only Please explain it ?

answered in Operating System Nov 7, 2017

1.5k views

4 votes

16

Digital Logic
The octal representation of an integer is (342)8. If this were to be treated as an eight-bit signed integer in 2's complement representation, its decimal equivalent is _________ 226 -30 76 -98

answered in Digital Logic Nov 3, 2017

515 views

1 vote

17

System BUS
Control signal lines are one of the 3 lines(Address lines, data lines & CS lines) of the System bus. The Addr. lines are unidirectional whereas Data lines are bidirectional. I have a doubt with the CS lines. They carry control signals from the processor to the peripherals. Are they unidirectional or bidirectional?

answered in CO and Architecture Oct 31, 2017

535 views

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18

QUESTION
If A and B are any two sets, then A U ( A ∩ B ) is equal to a) A b) AC c) B d) BC ANS: option a only or both a and b

answered in Set Theory & Algebra Oct 31, 2017

761 views

2 votes

19

File system doubt
Each inode in a file system has 5 direct pointers to disk blocks, 3 single indirect pointers to disk blocks, 2 double in- direct pointer to disc block and nothing else. A disc block is 500 bytes. A pointer to disc block is 10 bytes. The entire disc ... 000 bytes almost. What is the maximum size in bytes of a file in this file system? A)2552500 B)2575000 C)2575000 D)2577500

answered in Operating System Oct 31, 2017

1.7k views

2 votes

20

Probability
Suppose two dies are rolled .What is the probability of getting 4 on the first die , when the the sum is 6 ? A) 1/5 B)1/6

answered in Probability Oct 31, 2017

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UGC NET CSE | December 2014 | Part 3 | Question: 50
How many disk blocks are required to keep list of free disk blocks in a $16$ GB hard disk with $1$ kB block size using linked list of free disk blocks ? Assume that the disk block number is stored in $32$ bits. $1024$ blocks $16794$ blocks $20000$ blocks $1048576$ blocks

answered in Operating System Oct 30, 2017

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CPU SCHEDULING
Consider the following table : Assume all process arrived at same time. 1st process P1 stars execution from 0' time unit. Every process completes its CPU request then get I/O service. If any two process need same amount of CPU time then prefer the process ... P1 stars execution from 0' time unit" AND ". Process are scheduled using SJF for CPU service "?? anyone help?

answered in Operating System Oct 29, 2017

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NPTEL-Operating System-Week2-Quiz-Q9
Creating many threads is advisable than creating many processes. Which of the statements below do not support this claim? Threads can share the address space and global data. None of the options. Programmer should ensure that it is ok to share data between two threads. Context switching is faster for threads as compared to Processes

answered in Operating System Oct 29, 2017

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answered in Databases Oct 29, 2017

758 views

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Security
Match the following a. Secrecy. 1. Limit the resource usage. b Integrity 2. Unauthorized modification c availbility. 3. Unauthorized disclosure

answered in Operating System Oct 27, 2017

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Paging, Segmentation, Virtual Memory, OS
Consider a computer system where the size of logical address space and physical addresses space is respectively 2^16 Bytes , with segmented paging architecture applicable. The virtual address space is divided into 8 equal size segments. The segment is divided into equal size ... segment exactly fits in one page frame? (a) 256 B (b) 128B (c) 512 B (d) 1024 B

answered in Operating System Oct 27, 2017

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27

OS scheduling
Consider a program to be run on a computer system in round-robin CPU scheduling. The size of the program is 100K. It is given that the hard disk has a transfer rate of 1 megabyte per second. Assume that there are no head seeks and average latency is 8 milliseconds. What ... the acceptable time quantum for effective CPU utilization ? A. 2.048 sec B. 0.216 sec C. 0.108 sec D. 0.100 sec

answered in Operating System Oct 27, 2017

1.5k views

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UGC NET CSE | January 2017 | Part 2 | Question: 38
Match the following w.r.t Input/Output management : ...

answered in Operating System Oct 27, 2017

979 views

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