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
Novay_Z [31]
2 years ago
15

⦁ Consider transferring an enormous file of L bytes from Host A to Host B. Assume an MSS of 536 bytes. ⦁ What is the maximum val

ue of L such that TCP sequence numbers are not exhausted? Recall that the TCP sequence number field has 4 bytes. ⦁ For the L you obtain in (a), find how long it takes to transmit the file. Assume that a total of 66 bytes of transport, network, and data-link header are added to each segment before the resulting packet is sent out over a 155 Mbps link. Ignore flow control and congestion control so A can pump out the segments back to back and continuously.
Computers and Technology
1 answer:
timurjin [86]2 years ago
8 0

Answer:

a)  There are approximately  2^32 = 4,294,967,296 possible number of the sequence. This number of the sequence does not increase by one with every number of sequences but by byte number of data transferred. Therefore, the MSS size is insignificant. Thus, it can be inferred that the maximum L value is representable by 2^32 ≈ 4.19 Gbytes.

b)  ceil(2^32 / 536) = 8,012,999

The segment number is 66 bytes of header joined to every segment to get a cumulative sum of 528,857,934 bytes of header. Therefore, overall number of bytes sent will be 2^32 + 528,857,934 =  4.824 × 10^9 bytes.  Thus, we can conclude that the total time taken to send the file will be 249 seconds over a 155~Mbps link.

Explanation:

a)  There are approximately  2^32 = 4,294,967,296 possible number of the sequence. This number of the sequence does not increase by one with every number of sequences but by byte number of data transferred. Therefore, the MSS size is insignificant. Thus, it can be inferred that the maximum L value is representable by 2^32 ≈ 4.19 Gbytes.

b)  ceil(2^32 / 536) = 8,012,999

The segment number is 66 bytes of header joined to every segment to get a cumulative sum of 528,857,934 bytes of header. Therefore, overall number of bytes sent will be 2^32 + 528,857,934 =  4.824 × 10^9 bytes.  Thus, we can conclude that the total time taken to send the file will be 249 seconds over a 155~Mbps link.

You might be interested in
How do you know when a spreadsheet object is active in a powerpoint presentation?
Ira Lisetskai [31]
It should be under lined, when you press it it should have a different colour
4 0
3 years ago
Linda is the education manager for a national coding service company. Once a month she holds a videoconference with all her codi
Andru [333]

Answer:

Option (D) i.e., synchronous is the correct option to the following question.

Explanation:

The following statement are the synchronous type of training because it is the type of training which is given to students or the persons for the purpose of knowledge in present time and the trainer or that person who give them information they can receive feedback and message at that time and all persons has permission to ask questions with them.

Option C is incorrect because in this type of training the interaction between the trainer and the receiver could not be established.

Option A is incorrect because the classroom-based training only for that person or the students who are available at that time at that place and in this video conferencing is not available.

8 0
3 years ago
What were black codes?
Lyrx [107]
<span>The Union victory in the Civil War may have given some 4 million slaves their freedom, but African Americans faced a new onslaught of obstacles and injustices during the Reconstruction era (1865-1877). By late 1865, when the 13th Amendment officially outlawed the institution of slavery, the question of freed blacks’ status in the postwar South was still very much unresolved. Under the lenient Reconstruction policies of President Andrew Johnson, white southerners reestablished civil authority in the former Confederate states in 1865 and 1866. They enacted a series of restrictive laws known as “black codes,” which were designed to restrict freed blacks’ activity and ensure their availability as a labor force now that slavery had been abolished. For instance, many states required blacks to sign yearly labor contracts; if they refused, they risked being arrested as vagrants and fined or forced into unpaid labor. Northern outrage over the black codes helped undermine support for Johnson’s policies, and by late 1866 control over Reconstruction had shifted to the more radical wing of the Republican Party in Congress.</span>
8 0
2 years ago
Read 2 more answers
By the 1970s, the acceleration of airplane travel led to fears that an epidemic would leapfrog the globe much faster than the pa
kramer

Answer:

b. the HIV infection.

Explanation:

Around the 1970s, an increase in the use of airplane travel led to fears that an epidemic would leapfrog the globe much faster than the pandemics such as tuberculosis, leprosy, smallpox, trachoma, anthrax, scabies, etc., that were evident during the Middle Ages, fears that were later confirmed by the worldwide spread of the HIV infection, beginning in the 1970s in the United States of America.

STD is an acronym for sexually transmitted disease and it can be defined as diseases that are easily transmissible or contractable from another person through sexual intercourse. Thus, STD spread from an infected person to an uninfected person while engaging in unprotected sexual intercourse. Some examples of STDs are gonorrhea, chlamydia, syphilis, HIV, etc.

HIV is an acronym for human immunodeficiency virus and it refers to a type of disease that destabilizes or destroy the immune system of a person, thus, making it impossible for antigens to effectively fight pathogens.

Generally, contracting STDs has a detrimental effect to a patient because it causes an opening (break) or sore in the body of the carrier (patient) and as such making them vulnerable to diseases that are spread through bodily fluids e.g human immunodeficiency virus (HIV), Hepatitis, staphylococcus, AIDS, etc.

4 0
2 years ago
What is a router?
uranmaximum [27]

Answer:

A router receives and sends data on computer networks. Routers are sometimes confused with network hubs, modems, or network switches. However, routers can combine the functions of these components, and connect with these devices, to improve Internet access or help create business networks.

I believe the answer would be B). A device that sends data to the receiving device

Explanation:

3 0
3 years ago
Other questions:
  • Using the syntax in section 2.3, write a command delete_all_rights (p, q, s). this command causes p to delete all rights the sub
    13·1 answer
  • What executable programs have names that are just one character long, and what do they do??
    5·1 answer
  • The jailbreak property that, if the user turns the device off and back on, the device will start up completely, and the kernel w
    15·1 answer
  • You should structure the<br> first before you search for a relevant picture.
    11·1 answer
  • Suppose we used an Internet Addressing protocol that used 4 bits to encode a single address. How many devices would be supported
    15·1 answer
  • The number of individual networking address required for the internet is
    9·1 answer
  • 8.7 lesson practice question 1
    13·1 answer
  • Please help on both of these questions will give brainliest<br> !!
    9·2 answers
  • For this assignment your are to implement the Pet Class described in Programming Exercise 1, starting on page 494 in our textboo
    6·1 answer
  • Describe your ideas for a keyboarding game that would help someone improve their skills.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!