In a client-server environment, which two of the following can be used to verify passwords?
A.
System Catalog
B.
User ID/password file
C.
Client Operating System
D.
Communications layer
E.
Application Server
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Authentication is the first security feature you’ll encounter when you attempt to access a DB2
instance or database. DB2 authentication works closely with the security features of the underlying
operating system to verify user IDs and passwords. DB2 can also work with security protocols like
Kerberos to authenticate users.
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