Describe the security mechanisms related to server-side software

Search the Internet to find server-side software that is required to be installed on the hospital's servers to support access by your local hospital doctors to patients' information using their cellular phones or PDAs. Describe the benefits of server-side software and how it provides mobile users with access to certain types of communications and information. Describe the security mechanisms related to server-side software (ex., AES or Triple DES encryption).

Compute the sender's output in single sender CDMA case.

Consider the single-sender CDMA example in the attached figure. What would be the sender's output (for the 2 data bits shown) if the sender's CDMA code were (1,-1,1,-1,1,-1,1,-1)?

QoS Services

Consider the four services of providing QoS support, as described below. Describe the circumstance, if any, under which each of these principles can be removed. 1. Traffic shaping - regulates turbulent traffic. 2. Admission control - governs whether the network, given information about an application’s flow, can admit or reject the flow. 3. Resource allocation - lets network users reserve bandwidth on neighboring routers. 4. Packet scheduling - sets the timetable for the transmission of packet flows.

Show that the receiver is indeed able to recover sender 2's data from the aggregate channel signal by using sender 2's code.

Suppose that the receiver in figure (attached) wanted to receive the data being sent by sender 2. Show (by calculation) that the receiver is indeed able to recover sender 2's data from the aggregate channel signal by using sender 2's code.

Priority Queue

In the attached figure the sequence of departed packet is: 1, 3, 2, 4, and 5. what would be the sequence if preemptive priority queuing is used instead?