a.
Explanation of Solution
Finding binary numbers from 1 through 10:
Numbers | Binary numbers |
1 | 0000 0001 |
2 | 0000 0010 |
3 | 0000 0011 |
b.
Explanation of Solution
ASCII values for the letters from “B” through “K”:
Letters | ASCII values | Binary number |
B | 66 | 0100 0010 |
C | 67 | 0100 0011 |
D | 68 | 0100 0100 |
c.
Explanation of Solution
ASCII values for the letters from “b” through “k”:
Letters | ASCII values | Binary number |
b | 98 | 0110 0010 |
c | 99 | 0110 0011 |
d | 100 | 0110 0100 |
d.
Explanation of Solution
Steps to find internet checksum:
Step 1: Find ASCII value for the string.
Step 2: Find 8-bit binary number for the corresponding ASCII values.
Step 3: Add 16-bit numbers. If carry occurs, then wrap that around.
Step 4: Take 1’s complement for the final result to find out internet checksum.
For part (a) the internet checksum is calculated as follows:
Add all the 16-bit integers:
The above result doesn’t produce carry and therefore take 1’s complement.
1’s complement for “0001 1001 0001 1110” is “1110 0110 1110 0001”.
Therefore, internet checksum for the numbers 1 through 10 is “1110 0110 1110 0001”.
For part (b) the internet checksum is calculated as follows:
Add all the 16-bit integers:
The above result produces carry bit so carry forward it.
Now, take 1’s complement. 1’s complement for “0101 1111 0110 0100” is “1010 0000 1001 1011”.
Therefore, internet checksum for the letters “B” through “K” is “1010 0000 1001 1011”...
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Computer Networking: A Top-Down Approach (7th Edition)
- 2. Jane, Jill, and Jenny have formed a band consisting of 3 instruments. (a) If each of them can play all 3 instruments, how many different arrangements are possible? (b) What if Jane can play all 3 instruments, but Jill and Jenny can each play only piano and drums?arrow_forward4. A person has 9 friends, of whom 5 will be invited to a party. (a) How many choices are there if 2 of the friends are feuding and will not attend together? (b) How many choices if 2 of the friends will only attend together?arrow_forward5. There are 3 people in a room, and we are curious whether two of them have their birthday in the same month. We record the triplet that describes the month of birthday for each person. E.g., (Oct, Jan, Jul) is one possible triplet/outcome. (Since each month applies to a specific person, (Oct, Jan, Jul) is not the same as (Jan, Jul, Oct), so order is important.) (a) How many possible outcomes are there? (b) In how many of these outcomes do all three people have their birthday in different months? (c) In how many of these outcomes do at least two people have their birthday in the same month?arrow_forward
- 1. We have 8 blocks, of which 4 are green, 2 are red, 1 is white, and 1 is black. If we put the blocks in a line, how many arrangements are possible?arrow_forward3. (a) In how many ways can 3 cats and 3 dogs sit in a row? (b) In how many ways can 3 cats and 3 dogs sit in a row if the cats and the dogs are each to sit together? (c) In how many ways if only the cats must sit together? (d) In how many ways if no two animals of the same type are allowed to sit together?arrow_forwardthe gate level and the transistor level for a certain circuit are given below. Select from the given options for each space the variable name such that the transistor level design matches the gate level design. $1 => S2= M- W $3= |S4 = $5= J -R S1. S2- R S5 S3 S4arrow_forward
- Given that W, L. and tox are scaled with a scaling factor J, Vth and Vad are scaled with a scaling factor P Taking these scaling factors into consideration what is the scaling factor for metric X that equals loN C where loN is the on current of the transistor and C is the gate capacitance of the transistor. O p²/j2 O 1/P O J/P O 1/J2 O P/J2 O 1/(JP) O 1/p2 O P/J O 1/J2 O None of the other optionsarrow_forwardpython Tasks 7 • Task 1: Add a new class 'Moon` that inherits from `CelestialBody' and has an additional attribute `parent_planet. Write a method to display the moon's details along with its parent planet. • Task 2: Modify the 'Galaxy' class to calculate the total mass of all celestial bodies it contains. Implement a method `total_mass() for this purpose. • Task 3: Create a class 'BlackHole` that inherits from `Celestial Body` and adds properties like event_horizon_radius' and 'spins. Implement a method to display black hole details. • Task 4: Develop a simulation where a user can create multiple galaxies and display their celestial bodies in a hierarchical format using inheritance. 10/06/1446arrow_forwardPlease solve q2arrow_forward
- self.sAge = age super().__init_("Rahul", age) # inheriting the properties of def displayInfo(self): print(self.sName, self.sAge) obj = Student("Mayank", 23) obj.display() obj.displayInfo() parent class we created the object 'obj' of the child class. When we called the constructor of the child class 'Student', it initialized the data members to the values passed during the object creation. Then using the super() function, we invoked the constructor of the parent class. Asst.L. Manar Hamza Bashaa 2024-2arrow_forwardObject-oriented programming tion defines a new type of that class. Lec 7: Static Members Object-Oriented Programming Assignment: Create a class named StudentRecords and add a static variable named records, which is a list shared among all objects of the class. Then add a method named add_record that takes a student's name as input and appends it to the shared records list.arrow_forwardpython Tasks 6 • Task 1: Develop a Student Profile class with private attributes for `name` and __ grades` (a list of grades), and methods to add a grade and calculate the average. • Task 2: Create a `Playlist class that stores song titles in a private list, with methods to add a song, remove a song, and display the current playlist. • Task 3: Implement a `Temperature Sensor class with a private `_temperature attribute, and methods to set and get the temperature in both Celsius and Fahrenheit. • Task 4: Build a Library Book class with private attributes for the title and availability status; include methods to check out, return, and display the book's availability ⚫Task 5(homework): Create a 'Counter` class with a private _ count attribute, and include get_count()` and `set_count(value)` methods to access and modify it. Ensure set_count only accepts non-negative integers, and add increment()', decrement(), and reset()` methods for control.arrow_forward
- Computer Networking: A Top-Down Approach (7th Edi...Computer EngineeringISBN:9780133594140Author:James Kurose, Keith RossPublisher:PEARSONComputer Organization and Design MIPS Edition, Fi...Computer EngineeringISBN:9780124077263Author:David A. Patterson, John L. HennessyPublisher:Elsevier ScienceNetwork+ Guide to Networks (MindTap Course List)Computer EngineeringISBN:9781337569330Author:Jill West, Tamara Dean, Jean AndrewsPublisher:Cengage Learning
- Concepts of Database ManagementComputer EngineeringISBN:9781337093422Author:Joy L. Starks, Philip J. Pratt, Mary Z. LastPublisher:Cengage LearningPrelude to ProgrammingComputer EngineeringISBN:9780133750423Author:VENIT, StewartPublisher:Pearson EducationSc Business Data Communications and Networking, T...Computer EngineeringISBN:9781119368830Author:FITZGERALDPublisher:WILEY