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1. Suppose four active nodes-nodes A, B, C and D-are competing for access to a channel using slotted ALOHA. Assume each node has an infinite number of packets to send. Each node attempts to transmit in each slot with probability p. The first slot is numbered slot 1, the second slot is numbered slot 2, and so on.a. What is the probability that node A succeeds for the first time in slot 5?b. What is the probability that some node (either A, B, C or D) succeeds in slot 4?c. What is the probability that the first success occurs in slot 3?d. What is the efficiency of this four-node system?
2. Recall that with the CSMA/CD protocol, the adapter waits K.512 bit times after a collision, where K is drawn randomly. For K = 100, how long does the adapter wait until returning to Step 2 for a 10Mbps Ethernet? For a 100 Mbps Ethernet?
normally , we use normalization techniques a database. using the bowen et al. (2004) article, discuss the disadvantages of normalizing the database to a high degree of normalization.
build a Swing applet with a JButton labeled "Who's number one?." When user clicks the button, display your favorite sport team in a large font (Use Houston Rockets for the sports team). Please save the file to JNumberOne.java
A workstation utilizes a 15-MHZ processor with a claimed 10-MIPS rating to implement a provided programme mix. Suppose a one-cycle delay for every memory access. What is effective CPI of this computer?
Discuss how the hospitals are improving the efforts along with their supply chain through the evolution of software.
An asynchronous sequential logic circuit
Write the selection sort algorithm
Questions on RISC machine
make an application named Numbers. The Numbers class should have non-static public methods named sum and difference, each taking a pair of int variables as arguments.
Explain the method to find cost of sorting the relation In each case, how many combine passes are required?
Structured Query Language (SQL) refers to the accepted non-procedural language used in order to communicate with all the relational databases.
Construct a context diagram for the new system. Construct a diagram 0 DFD for the new system.
Write down the program that prints out the chains for numbers within the range which the user specifies. The length of each chain must be printed at the end of the chain.
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