Installing and Configuring Windows Server 2012 Exam Network Infrastructure & IP Configuration 1 — Questions and Answers
Question 1: Which DNS record type maps a hostname to an IPv6 address?
- A record
- PTR record
- AAAA record (Correct answer)
- CNAME record
Correct answer: AAAA record
AAAA (quad-A) records map a hostname to a 128-bit IPv6 address for forward name resolution.
Question 2: Which DNS zone type contains a writable master copy of zone data and accepts dynamic updates?
- Stub zone
- Secondary zone
- Primary zone (Correct answer)
- Conditional forwarder
Correct answer: Primary zone
Primary zones are authoritative and contain the writable master copy of zone data that can accept dynamic DNS updates.
Question 3: Which DNS record type identifies the mail server responsible for accepting email for a domain?
- SRV
- MX (Correct answer)
- NS
- SOA
Correct answer: MX
MX (Mail Exchanger) records specify the mail servers responsible for accepting inbound email for a domain, with a priority value for failover.
Question 4: What does a DNS stub zone contain?
- A full writable copy of zone data
- Only NS and SOA records pointing to authoritative servers (Correct answer)
- Cached responses from previous queries
- All DNS records forwarded from another server
Correct answer: Only NS and SOA records pointing to authoritative servers
A stub zone contains only the NS records and SOA needed to locate the authoritative DNS servers for a delegated zone.
Question 5: What Windows Server 2012 DNS feature stores zone data in Active Directory to enable multi-master updates?
- DNS Cache
- Active Directory-Integrated Zones (Correct answer)
- GlobalNames Zone
- Secondary Zone Transfer
Correct answer: Active Directory-Integrated Zones
Active Directory-Integrated Zones store DNS data in AD DS, enabling multi-master updates, secure dynamic registration, and AD-based replication.
Question 6: What is the default TTL for DNS records created in a Windows Server 2012 DNS zone?
- 15 minutes
- 1 hour (Correct answer)
- 1 day
- 7 days
Correct answer: 1 hour
The default TTL for DNS records in Windows Server 2012 is 1 hour (3600 seconds), controlling how long resolvers cache the record.
Installing and Configuring Windows Server 2012 Exam Network Infrastructure & IP Configuration 1
Which DNS record type maps a hostname to an IPv6 address?