In Question below, the ICMP frame length does not include the 14 bytes of Ethernet header as in Wireshark capture. This frame starts with 45 hex if it is an IP frame with version 4 and IP header length 20.
Question:
(a) Can you have ICMP frames of 8 different lengths 30, 60, 90, and 120 bytes respectively? If impossible, state the reason.
(b) If possible, explain how you can make that happen using different parameters of ping command.

File account. java (see previous exercise) contains a definition for a simple bank account class with methods to withdraw, deposit, get the balance and account number, and return a string representation. note that the constructor for this class creates a random account number. save this class to your directory and study it to see how it works. then write the following additional code: 1. suppose the bank wants to keep track of how many accounts exist. a. declare a private static integer variable numaccounts to hold this value. like all instance and static variables, it will be initialized (to 0, since it’s an int) automatically. b. add code to the constructor to increment this variable every time an account is created. c. add a static method getnumaccounts that returns the total number of accounts. think about why this method should be static - its information is not related to any particular account. d. file testaccounts1.java contains a simple program that creates the specified number of bank accounts then uses the getnumaccounts method to find how many accounts were created. save it to your directory, then use it to test your modified account class.

Using a conditional expression, write a statement that increments numusers if updatedirection is 1, otherwise decrements numusers. ex: if numusers is 8 and updatedirection is 1, numusers becomes 9; if updatedirection is 0, numusers becomes 7.

To add additional commands to the quick access toolbar, a user can navigate to the view. backstage status bar design file