1. state the difference between ethernet and atm. 2. how does switch differs from hub ? 3. given the following ip addresses (in hexadecimal)identify ; a) the class, b) the network id (both in hex and binary), c) the host id (both in hex and binary), d) write each address in dotted decimal notation. 1. bc145f3a 2. 765e9a8d 3. c8483f95 4. 5d3a297e 5. 957b357e 6. d976827b 7. 394e839a 8. c7562dcf 9. 8cdfcb7a 4. exactly how many class a, b, and c networks can exist? exactly how many hosts can a network in each class have? how many possible addresses are possible in each class? how many ip addresses are available overall?

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.

In microsoft word, when you highlight existing text you want to replace, you're in              a.  advanced mode.    b.  automatic mode.    c.  basic mode.    d.  typeover mode

Why would a business likely use a java applet - to back up their data files for the business - to create a program that a customer can launch in their web browser - to create music on a powerpoint presentation - to organize files on their company directory