The correct CRON expression for Jenkins to check for updates every five minutes without polling all projects at the same time is option (1) */5 * * *.
The CRON expression "*/5 * * *" specifies that Jenkins should run the task every five minutes. The asterisk (*) in the first position means "every" or "any" value, so */5 indicates every fifth minute. The remaining fields are left as asterisks to denote any value for the other components (hour, day, month, etc.). This expression ensures that Jenkins will check for updates every five minutes without having all projects polled simultaneously. By using this expression, Jenkins will stagger the polling of projects and avoid overwhelming the system with simultaneous requests.
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What is not one of the three characteristics of tcp in its role as a reliable delivery protocol?.
Transmission Control Protocol (TCP) is the most popular protocol utilized for communication across the internet. TCP, as a reliable delivery protocol, has several characteristics. However, one of the three characteristics of TCP in its role as a reliable delivery protocol is the ability to perform a quick, continuous, and reliable flow control.
The first characteristic of TCP is connection-oriented communication. The connection-oriented communication guarantees that the sending device is connected to the receiving device before data transmission. TCP guarantees that the receiver is ready to receive data before transmission occurs. Therefore, the receiver will have a buffer ready to store incoming data.
Therefore, Flow control is one of the three characteristics of TCP in its role as a reliable delivery protocol. It allows the sender to control the flow of data based on the receiver's buffer size, preventing buffer overflow or congestion.
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