DB2 10 for z/OS Database Administrator — Question 48

The HADR_TARGET_LIST parameter enables HADR to run in multiple standby mode. Which of the following statements are TRUE if HADR is active? (Choose two.)

Answer options

• A. You can change the principal standby of the primary without first stopping HADR on the primary.
• B. The target list can contain IP addresses that are either IPv4, or IPv6, or a combination of the two.
• C. You can remove the primary database from the target list of a standby although the standby is connected to the primary.
• D. You cannot dynamically update the HADR_TARGET_LIST configuration parameter for a standby unless you have enabled the HADR read standby feature.
• E. You cannot remove a standby from the list if it is connected to the primary. To disconnect a standby, simply deactivate it. The you can remove it from the

Correct answer: A, E

Explanation

Answer A is correct because you can indeed change the principal standby without stopping HADR. Answer E is also correct, as a standby must be deactivated before it can be removed from the list, which aligns with the rules regarding connected standbys. The other options are not accurate according to HADR's operational guidelines.