Answer the following statement(s) true (T) or false (F)

1. When none of the computers in the ring has any data frames for transmission, then the token frame will stop circulating and wait for a signal from the primary controller.
2. The data in the main and backup rings flow in the same direction.
3. The speed of a token ring network is usually 16 Mbps with a 100 meter UTP cable.
4. In the token bus network, tokens pass from higher to lower addresses.
5. The token bus network is suitable for a manufacturing plant where stations may be located far from each other.

1. FALSE
2. FALSE
3. FALSE
4. TRUE
5. TRUE

Computer Science & Information Technology

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Answer the following statements true (T) or false (F)

1. It is important in a direct digital signature to perform an outer confidentiality function first and then the signature function. 2. Message authentication protects two parties who exchange messages from any third party, however, it does not protect the two parties against each other. 3. The digital signature function does not include the authentication function. 4. The DSS approach makes use of a hash function. 5. It must be relatively difficult to recognize and verify the digital signature.

Computer Science & Information Technology

Write a recursive method that will count the number of vowels in a string. Hint: Each time you make a recursive call, use the String method substring to construct a new string consisting of the second through last characters. The final call will be when the string contains no characters.

What will be an ideal response?

Computer Science & Information Technology