Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 12, Problem 11RQ
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Two-phase commit protocol:
The two-phase commit protocol is used to make sure that the transaction atomicity and
The need of this protocol helps to make sure that the database changes form remote site is coincided. If not, each and every transaction is undone to sustain a consistent database.
There are two phases in two-phase commit protocol. They are,
- Preparation
- The final COMMIT
Phase 1: Preparation
- The coordinator transfers the message from PREPARE TO COMMIT to all subordinates...
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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.
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Database Systems: Design, Implementation, & Management
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