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GCFA · Question #242
GCFA Question #242: Real Exam Question with Answer & Explanation
The correct answer is B. BIND. The error 'Unable to resolve host name' signals a DNS failure, so BIND - the standard DNS server daemon on Linux - is the first service to verify.
Question
You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based network. Users complain that they are unable to access resources on the network. However, there was no such problem the previous day. They are receiving the following error messages regularly: Unable to resolve host name As your primary step for resolving the issue, which of the following services will you verify whether it is running or not?
Options
- AAPACHE
- BBIND
- CSAMBA
- DSQUID
Explanation
The error 'Unable to resolve host name' signals a DNS failure, so BIND - the standard DNS server daemon on Linux - is the first service to verify.
Common mistakes.
- A. APACHE is an HTTP web server daemon that handles web requests and plays no role in DNS hostname resolution.
- C. SAMBA provides SMB/CIFS file and print sharing between Linux and Windows clients and is not responsible for DNS name resolution services.
- D. SQUID is a caching proxy server that forwards web traffic; it does not function as a DNS resolver or hostname resolution service.
Concept tested. DNS service identification on Linux using BIND
Reference. https://www.isc.org/bind/
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