EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
12th Edition
ISBN: 8220101450739
Author: Morris
Publisher: YUZU
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Expert Solution & Answer
Chapter 10, Problem 13RQ
Explanation of Solution
Deadlock:
Deadlock is the process in which two or more transactions wait infinitely for the other transaction that release the locked data item. Consider the following example:
Example:
- Transaction “T1” wants to access data items “X” and “Y” and transaction “T2” wants to access data items “Y” and “X”.
- If the transaction “T1” locks the data item “Y”, the transaction “T2” cannot starts its process.
- If the transaction “T2” locks the data item “X”, the transaction “T1” cannot continue its process.
The transaction waits for each other to unlock the data item. It is otherwise called as “deadly embrace”.
To avoid the deadlock in transactions, use the strategies of deadlock avoidance, deadlock prevention and deadlock detection.
Deadlock avoidance:
Deadlock avoidance is the process that obtains all the locks before the transaction executed. This process used to increase the response time of the transaction...
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Cisco Packet Tracer
1. Smart Home Automation:o Connect a temperature sensor and a fan to a home gateway.o Configure the home gateway so that the fan is activated when the temperature exceedsa set threshold (e.g., 30°C).2. WiFi Network Configuration:o Set up a wireless LAN with a unique SSID.o Enable WPA2 encryption to secure the WiFi network.o Implement MAC address filtering to allow only specific clients to connect.3. WLC Configuration:o Deploy at least two wireless access points connected to a Wireless LAN Controller(WLC).o Configure the WLC to manage the APs, broadcast the configured SSID, and applyconsistent security settings across all APs.
Chapter 10 Solutions
EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
Ch. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Prob. 4RQCh. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11P
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