Which option determines whether a system users NIS, local files, DNS, or a combination as the
source of information, and also order of the source?
A.
/etc/resolv.conf
B.
/etc/idap.conf
C.
/etc/nsswitch.conf
D.
/etc/yp.conf
Explanation:
The Name Service Switch (NSS) configuration file, /etc/nsswitch.conf, is used by the
GNU C Library to determine the sources from which to obtain name-service information in a range
of categories, and in what order. Each category of information is identified by a database name.
The file is plain ASCII text, with columns separated by spaces or tab characters. The first column
specifies the database name. The remaining columns describe the order of sources to query and a
limited set of actions that can be performed by lookup result.
Incorrect:
Not A: In most Unix-like operating systems and others that implement the BIND Domain Name
System (DNS) resolver library, the resolv.conf configuration file contains information that
Not D:/etc/yp.conf – NIS binding configuration file
Reference:nsswitch.conf