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Questions by superak96
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votes
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1
Data Communications AND Networking by BEHROUZ A. FOROUZAN (5th Edition)
The LLC provides a single link-layer control protocol for all IEEE LANs. This means LLC protocol can provide interconnectivity between different LANs because it makes the MAC sublayer transparent. Does this mean that all the LANs use ... . But don't we see that the frame format of alll are different. So, how is it possbile?
“The LLC provides a single link-layer control protocol for all IEEE LANs. Thismeans LLC protocol can provide interconnectivity between different LANs because itmakes th...
707
views
asked
Feb 19, 2019
Computer Networks
computer-networks
llc
ethernet
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2
votes
1
answer
2
Error Detection Using CRC
For detecting a single bit error using CRC, it is needed that $x^{i}$ should not be divisible by g(x). So, we make g(x) of at least 2 terms, which renders a single term of e(x) indivisible. But then what is the logic behind keeping MSB as 1. ... any single bit indivisible? For example, $x^{3}+x^{2}$ is guarantees to detect a single bit error at any position. Is it not?
For detecting a single bit error using CRC, it is needed that $x^{i}$ should not be divisible by g(x). So, we make g(x) of at least 2 terms, which renders a single term o...
1.1k
views
asked
Feb 7, 2019
Computer Networks
crc-polynomial
computer-networks
error-detection
single-bit-error
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1
votes
0
answers
3
Full Adder
The Cout function of a 3-bit adder is as follows: AB + Cin (A ⊕ B) ----- i It, being a majority function, can also be written as: AB+BCin+CinA which is equivalent to AB + Cin (A+B) ------- ii So, if we consider eqn i and ii, doesn't it show that (A ⊕ B) = (A+B). What am I missing here?
The Cout function of a 3-bit adder is as follows:AB + Cin (A ⊕ B) - iIt, being a majority function, can also be written as:AB+BCin+CinAwhich is equivalent toAB + Cin ...
611
views
asked
Oct 18, 2018
Digital Logic
full-adder
digital-logic
carry-generator
digital-circuits
majority-circuit
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0
votes
3
answers
4
AN INTRODUCTION TO OPERATING SYSTEMS CONCEPTS AND PRACTICE (GNU/LINUX)
Suppose UNIX disk block will hold 2048 disk addresses. What is the maximum sized file using only the direct pointers? Single-indirection capability? Double indirection capability? Triple-indirection capability?
Suppose UNIX disk block will hold 2048 disk addresses. What is the maximum sizedfile using only the direct pointers? Single-indirection capability? Double indirectioncapa...
863
views
asked
Oct 9, 2018
Operating System
operating-system
memory-management
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–
0
votes
0
answers
5
Behrouz A Forouzan, Data Communication and Networking - 4th ed (Chapter 1
The number of cable links required to connect N nodes using bus topology is supposed to (N-1). How so?
The number of cable links required to connect N nodes using bus topology is supposed to (N-1). How so?
655
views
asked
Aug 28, 2018
Computer Networks
computer-networks
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0
votes
1
answer
6
Relations
What is the smallest binary relation possible from A to B? Is it Null Set? If so, how is it possible relations are subsets of AxB (cartesian product) and if AxB is not supposed to be containing a Null Set.
What is the smallest binary relation possible from A to B? Is it Null Set? If so, how is it possible relations are subsets of AxB (cartesian product) and if AxB is not s...
469
views
asked
Aug 22, 2018
Set Theory & Algebra
set-theory
relations
discrete-mathematics
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