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Free download in PDF DNS Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
The entire hostname has a maximum of ___________
[A]
31 characters
[B]
255 characters
[C]
127 characters
[D]
None of the above
(2)
Which one of the following allows client to update their DNS entry as their IP address change?
[A]
dynamic DNS
[B]
authoritative name server
[C]
mail transfer agent
[D]
None of the above
(3)
The right to use a domain name is delegated by domain name registers which are accredited by _______
[A]
internet research task force
[B]
internet corporation for assigned names and numbers
[C]
internet architecture board
[D]
internet society
Answer: internet corporation for assigned names and numbers
(4)
The Domain Name System support in Microsoft Windows NT, and thus its derivatives ________, Windows XP, and Windows Server 2003, comprises two clients and a server.
[A]
Windows 2000
[B]
Windows Server 2008
[C]
Internet Explorer
[D]
Windows Vista
(5)
Microsoft DNS is the name given to the implementation of domain name system services provided in ________ operating systems.
[A]
Microsoft Windows
[B]
Internet Explorer
[C]
Internet Information Services
[D]
DirectX
Answer: Microsoft Windows
(6)
Prior to ________ and Microsoft Windows 2000 Service Pack 3, the most common problem encountered with Microsoft’s DNS server was cache pollution.
[A]
Windows XP
[B]
Windows Server 2008
[C]
Windows Server 2003
[D]
Windows Vista
Answer: Windows Server 2003
(7)
What is an alias record used for?
[A]
creating an alternate record or alias for an existing record
[B]
a routable internal address (similar to the 192.168 address space)
[C]
in an unsecured location facing the internet
[D]
when you have a large number of single-name clients to support
Answer: creating an alternate record or alias for an existing record
(8)
What are the 3 types of IPv6 addresses?
[A]
link-local, site-local, and global unicast
[B]
dynamic, read-write, and read-only
[C]
in the Start of Authority (SOA) record
[D]
older applications that are unable to use FQDN’s
Answer: link-local, site-local, and global unicast
(9)
What are the 3 strategies for updating DNS servers?
[A]
dynamic, read-write, and read-only
[B]
the Mail exchanger (MX) record
[C]
a unique, internet-usable IP address
[D]
in a highly-secure environment
Answer: dynamic, read-write, and read-only
(10)
How are the bits in an IPv6 address organized?
[A]
into 8 16-bit groups
[B]
reverse lookup
[C]
canonical name (CNAME)
[D]
name records
Answer: into 8 16-bit groups
(11)
What allows PNRP to support service naming?
[A]
the fact that a PNRP name includes potential payloads such as service function
[B]
a referral system that performs lookups based on data known by other systems
[C]
the process that DNS uses to remove records that have become stale
[D]
creating an alternate record or alias for an existing record
Answer: the fact that a PNRP name includes potential payloads such as service function
(12)
What is used to control DNS data replication scope?
[A]
the Mail exchanger (MX) record
[B]
in the Start of Authority (SOA) record
[C]
application directory partitions
[D]
in a highly-secure environment
Answer: application directory partitions
(13)
How can PNRP names be protected from spoofing or poisoning?
[A]
with digital signatures
[B]
in a highly-secure environment
[C]
in perimeter networks
[D]
Pointer (PTR) records
Answer: with digital signatures
(14)
What is the most common record type in DNS?
[A]
dnscmd.exe
[B]
Host (A) records
[C]
name records
[D]
None of the above
(15)
In what format are IPv6 addresses usually displayed?
[A]
in hexidecimal format
[B]
the Mail exchanger (MX) record
[C]
canonical name (CNAME)
[D]
Host (A) records
Answer: in hexidecimal format
(16)
For what purpose is the BIND root cache file used?
[A]
To prime the name server with the root server’s addresses
[B]
To serve as a configuration file for the name server
[C]
To serve as a zone file for the loopback address
[D]
To provide zone files for authoritative servers
Answer: To prime the name server with the root server’s addresses
(17)
What is the function of the directory directive in the name server configuration file?
[A]
To establish an initial path for later file references
[B]
To declare the server as a secondary server for a zone
[C]
To declare the server as an authoritative server for a zone
[D]
To establish the origin domain and name of the root cache file
Answer: To establish an initial path for later file references
(18)
What is the basic function of the nslookup program?
[A]
To look up only SOA records from a company’s database
[B]
To look up only IP addresses in the DNS database
[C]
To look up only domain names in the DNS database
[D]
To probe the DNS database for various types of information
Answer: To probe the DNS database for various types of information
(19)
What file does the nslookup program use to locate a name server?
[A]
The /etc/resolv.conf file
[B]
The /etc/hosts file
[C]
The /etc/named.boot file
[D]
The /var/log/messages file
Answer: The /etc/resolv.conf file
(20)
Besides the name server process, what are the other parts of the BIND package?
[A]
The /etc/resolv.conf file
[B]
The name server data files
[C]
The /etc/named.boot file
[D]
The /etc/hosts file
Answer: The name server data files
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