1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
levacccp [35]
3 years ago
12

If an ARQ algorithm is running over a 40-km point-to-point fiber optic link then:

Computers and Technology
1 answer:
Dennis_Churaev [7]3 years ago
4 0

Answer and Explanation:

Given data:

Distance (D) = 40 KM

Speed of light in the fiber =Distance/ speed of light in the fiber

a) Delay (P) = Distance/ speed of light in the fiber

= (40,000 Meters/2×108 m/s)

=( 40×103 Meters/2×108 m/s)

Propagation delay (P) = 0.0002 seconds or 200 microseconds

b)

if propagation delay is 0.0002 Seconds roundup trip time (RTT) will be 0.0004 Seconds or 400 micro Seconds

Essentially since transmission times and returning ACKs are insignificant all we really need is a value slightly greater than 0.0004 seconds for our timeout value.

c)

The obvious reasons would be if the data frame was lost, or if the ACK was lost. Other possibilities include extremely slow processing on the receive side (late ACK).

Or Extremely Slow Processing of the ACK after it is received back at the send side.

You might be interested in
The keywords used in programming languages that use decisions to redirect the flow of a program are called __
olchik [2.2K]
The keywords used in programming languages that use decisions to redirect the flow of a program are called control structures.
6 0
3 years ago
21
n200080 [17]

Answer:

slide sorter view

Explanation:

Explanation: while you can use 3/4 of these options to reorder slides, it is more common to use slide sorter view.

8 0
3 years ago
What do we call the two parts of lift that goes down a mine
Blababa [14]
The sheave wheel is a pulley wheel that sits above the mine shaft. The hoist cable passes over the sheave wheel and then down the shaft of the mine.
(copied from google)
4 0
3 years ago
Read 2 more answers
Which of the following galaxy types is most likely to be clearly identifiable, regardless of orientation? SBc
Reil [10]

Answer:

The most likely galaxy type to be identifiable regardless of orientation is: Irr

Explanation:

The Irr galaxies don't have a discernable or usual shape; that is why it is relatively easy to identify.

When we talk about E type galaxies, this statement proves itself by the way the cumulus of stars compounds the galaxy. The elliptical galaxies have the form of ellipses, with a reasonable distribution of stars. The degree of eccentricity is the number that complements the E letter; that's why E0 galaxies are almost spherical, while E7 is considerably elongated.

SBc, SBa galaxies are spiral; this means it can be flat in some angles difficulting their identification process; in this case, the last letter means the way the arms display their form, with "c" having a vague form and "a" well-defined arms. That's why in some angles can be mistreated as another type of galaxy.

3 0
3 years ago
Each year, Doritos sponsors a Crash the Super Bowl contest, encouraging individuals to submit ads for Doritos to the contest. Th
monitta

Answer:

The answer is creators.

Explanation:

<em>Creators are contributors capable to inovate and share creative ideas. They are not necessarily advertising  and marketing professionals. They can have art, design, music,  and other backgrounds, but the most relevant characteristic of this group of people is their creativity.</em>

<em>They are behind all the great ideas we see at the most relevant social medias nowadays.</em>

7 0
3 years ago
Other questions:
  • 1. A video card on a modem motherboard would run best in which type of slot?
    10·1 answer
  • First write a method to calculate the greatest common divisor (GCD) of two positive integers using Euclid’s algorithm (also know
    10·1 answer
  • Wide area network (WAN) connects multiple networks that are in the same geographical locations.
    6·1 answer
  • Need help ASAP Examples of utilities that make it possible for people to create and share multimedia files include _____. audio
    9·2 answers
  • Suppose that the tuition for a university is $10,000 this year and increases 4% every year. In one year, the tuition will be $10
    10·1 answer
  • Which of the following should you consider when choosing a file format?
    9·2 answers
  • What will be the index of leaf node in a right-skewd binary tree with height =7,where every parent has at most one child?​
    15·1 answer
  • What are other ways you could use the shake or compass code blocks in physical computing projects?
    14·1 answer
  • Pls paanswer asap......​
    10·1 answer
  • Identify the true statements about the approach to privacy around the world. a. Uncertainty concerning the nature, extent, and v
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!