70-413 Exam DNS and DHCP Infrastructure 1 — Questions and Answers
Question 1: Which DNS record type maps a hostname to an IPv6 address?
- A
- AAAA (Correct answer)
- PTR
- CNAME
Correct answer: AAAA
AAAA records map a fully qualified domain name to a 128-bit IPv6 address, analogous to how A records map to IPv4 addresses.
Question 2: What DNS zone type stores its data within Active Directory and replicates automatically to all DNS-enabled domain controllers?
- Secondary Zone
- Stub Zone
- AD-Integrated Zone (Correct answer)
- GlobalNames Zone
Correct answer: AD-Integrated Zone
AD-Integrated zones store DNS data as AD objects, benefiting from AD replication, multi-master updates, and secure dynamic DNS updates.
Question 3: Which DHCP option number provides clients with the IP address of their default gateway?
- Option 006
- Option 003 (Correct answer)
- Option 015
- Option 044
Correct answer: Option 003
DHCP Option 003 (Router) specifies the default gateway address that clients should use to reach destinations outside their local subnet.
Question 4: What DHCP configuration prevents a scope from assigning IP addresses that are already statically configured on other devices?
- Reservation
- Exclusion Range (Correct answer)
- Conflict Detection
- Superscope
Correct answer: Exclusion Range
Exclusion ranges specify a set of addresses within a scope that the DHCP server will never assign dynamically, protecting statically configured devices.
Question 5: Which DNS record type is required for reverse DNS lookups, mapping an IP address back to a hostname?
- A
- AAAA
- PTR (Correct answer)
- SOA
Correct answer: PTR
PTR (Pointer) records are stored in reverse lookup zones and map IP addresses to their corresponding fully qualified domain names.
Question 6: Which Windows Server feature provides centralized management, audit logging, and IP address space tracking for multiple DHCP and DNS servers?
- IPAM (Correct answer)
- NPS
- RRAS
- DNS Manager
Correct answer: IPAM
IP Address Management (IPAM) centralizes the management of DHCP scopes, DNS zones, and IP address utilization with built-in audit logging.
70-413 Exam DNS and DHCP Infrastructure 1
Which DNS record type maps a hostname to an IPv6 address?