Split the hexadecimal format, Operating System

Assignment Help:

The following is a dump of a TCP header in hexadecimal format:

00CD0018 00000EF1 00000D5D 502200D1 01BF0010

We need to first split the above hex as such

00 CD 00 18 00 00 0E F1 00 00 0D 5D 50 22 00 D1 01 BF 00 10

1.1 What is the source port number?

Source port is 2 bytes take 00 CD = 205

(00 CD 00 18 00 00 0E F1 00 00 0D 5D 50 22 00 D1 01 BF 00 10)

1.2 What is the destination port number?

Next 2 bytes as destination address 00 18 = 24

1.3 What is the sequence number?

Next 4 bytes as sequence number 00 00 0E F1 = 3825

1.4 What is the acknowledgment number?

Next 4 bytes as acknowledgment number 00 00 0D 5D = 3421

1.5 What is the length of the header?

Next 4 bits as HLEN 5 (this indicates number of sets of 4 bytes which makes the header lenght = 20bytes)

1.6 Which control bits are set and what do they represent?

Next 6 bits are reserved 02 = 02 (10 - remaining (binary))

Next 6 bits are control bits 22= 34 (100010)

1.7 What is the window size?

Next 2 bytes indicate the window length 00 D1 =209

Related Discussions:- Split the hexadecimal format

What are the services provided by the operating systems, What are the servi...

What are the services provided by the operating systems? Program Development It provides a variety of services and facilities, such as debuggers and editor, to help the

Capability lists are typically kept within the address space, Q. Capabilit...

Q. Capability lists are typically kept within the address space of the user. How does the system make sure that the user cannot modify the contents of the list? Answer: An ap

Compute minimum transfer size for acceptable utilization, Q. It is occasio...

Q. It is occasionally said that tape is a sequential-access medium whereas magnetic disk is a random-access medium. In fact the correctness of a storage device for random access d

Define race condition, Define race condition. When various process acce...

Define race condition. When various process access and manipulate similar data concurrently, then the outcome of the execution depends on certain order in which the access take

Interrupt-driven i/o to manage a single serial port, Q. Why might a system ...

Q. Why might a system utilize interrupt-driven I/O to manage a single serial port however polling I/O to manage a front-end processor such as a terminal concentrator? A

Program that will input an interger target value, When you turn in an assig...

When you turn in an assignment to be graded in this class, you are making the claim that you neither gave nor received assistance on the work you turned in (except, of course, assi

Digital circuits and design , 1. Draw a schematic diagram of a CMOS inverte...

1. Draw a schematic diagram of a CMOS inverter and explain its operation. 2. Draw schematic diagrams of CMOS NAND and NOR gates, and explain their operation. 3. Explain what

Deadlocks, At the end of this lecture, and into the next lecture, we will d...

At the end of this lecture, and into the next lecture, we will discuss the last major type of logical error that can occurwhen programming with threads. A deadlock occurswhen two t

Producer - consumer system, In this exercise we are going to use pthread()...

In this exercise we are going to use pthread()to simulate the dynamics between a warehouse, factory and retail. The factory produces product by using parts supplied by the warehou

Suggest a scheme for implementing this policy, Q. Consider a calculating e...

Q. Consider a calculating environment where a process is given the privilege of accessing object only n times. Suggest a scheme for implementing this policy. Answer: Add an i

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages