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Exam 1z0-062 topic 1 question 154 discussion

Actual exam question from Oracle's 1z0-062
Question #: 154
Topic #: 1
[All 1z0-062 Questions]

Which statement is true about Oracle Net Listener?

  • A. It acts as the listening endpoint for the Oracle database instance for all local and non-local user connections.
  • B. A single listener can service only one database instance and multiple remote client connections.
  • C. Service registration with the listener is performed by the process monitor (PMON) process of each database instance.
  • D. The listener.ora configuration file must be configured with one or more listening protocol addresses to allow remote users to connect to a database instance.
  • E. The listener.ora configuration file must be located in the ORACLE_HOME/network/admin directly.
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Suggested Answer: C 🗳️
https://docs.oracle.com/database/121/CNCPT/process.htm

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Havok
Highly Voted 4 years, 10 months ago
C would not be correct for 12c, since PMON handled this process in earlier releases, but for 12c it is the LREG that handles service registration
upvoted 8 times
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sherifelia
Highly Voted 5 years ago
D is correct http://www.dba86.com/docs/oracle/11.2/network.112/e41945/listenercfg.htm#NETAG292
upvoted 5 times
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luizyto
Most Recent 1 year, 11 months ago
Selected Answer: C
I thing that this could be and old question and in exam 12c we will se the LREG service instead.
upvoted 1 times
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Ray520
2 years, 7 months ago
Since the version of database is not mentioned, we can only consider option C as it's correct for versions before 12c. Rest all options are incorrect. "In releases before Oracle Database 12c, PMON performed the listener registration."
upvoted 1 times
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Ray520
2 years, 7 months ago
When confused which option is correct, better to find out the incorrect options. Agree with @hggz
upvoted 1 times
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fridaytar
3 years, 10 months ago
The listener forwards client requests to supported services. These services are dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the Listener Registration (LREG) process. Dynamic service registration does not require any manual configuration in the listener.ora file.
upvoted 1 times
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TuxBingo
4 years, 4 months ago
Agree with Havok: Listener Registration Process (LREG) The listener registration process (LREG) registers information about the database instance and dispatcher processes with the Oracle Net Listener. When an instance starts, LREG polls the listener to determine whether it is running. If the listener is running, then LREG passes it relevant parameters. If it is not running, then LREG periodically attempts to contact it. Note: In releases before Oracle Database 12c, PMON performed the listener registration.
upvoted 1 times
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joe_doe
4 years, 5 months ago
Answer should be D,LREG do the register work instead of PMON in 12c
upvoted 3 times
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Winterschill
4 years, 6 months ago
The Answer is 100% D guys... Havok is correct on why C is WRONG. Reference below will confirm LREG handles that proces. It also confirms why D is correct. https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
upvoted 5 times
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hggz
4 years, 8 months ago
Answer is C. But option C is a little bit different: C. Service registration with the listener is performed by the listener registration process monitor (LREG) process of each database instance. Not D.
upvoted 1 times
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khan
5 years, 8 months ago
C. Service registration with the listener is performed by the listener registration process monitor (LREG) process of each database instance. Reference: http://docs.oracle.com/database/121/NETAG/listenercfg.htm
upvoted 1 times
hggz
4 years, 8 months ago
A is wrong because you can make local connections without going through a listener. B is wrong because many databases can register with a listener. D is wrong because you don’t have to configure a listening protocol address(es) in istener.ora. If not specified, it will simply default to TCP port 1521. E is wrong because Oracle will also look in $TNS_ADMIN directory or /etc.
upvoted 3 times
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C (25%)
B (20%)
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