Assume an attacker has compromised a number of broadband connected computers to use as zombie systems for a distributed denial of service (DDOS) attack. If the ISP provides a maximum uplink data rate of 768 Kbps in ADSL, what is the maximum uplink data rate of request of 128-byte ICMP echo request (ping) packets a single zombie computer can send per second? How many such zombie systems would the attacker need to flood a target server connected in:

(a). A Fast Ethernet.

(b). A Gigabit Ethernet.