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Windows · DNS & DHCP interview questions

48 Windows · DNS & DHCP questions from the System Administration bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.

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1. What is A record?

Junior
  1. A.automatic removal of stale dynamic DNS records
  2. B.a DNS record mapping a hostname to an IPv4 address
  3. C.IP addresses within a scope that the server will not lease
  4. D.a DNS record locating services (used heavily by Active Directory)

Answer + AI explanation with Pro

2. Which term means: "a DNS record mapping a hostname to an IPv4 address"?

Junior
  1. A.DHCP scope
  2. B.A record
  3. C.DHCP reservation
  4. D.DHCP relay / IP helper

Answer + AI explanation with Pro

3. Which statement is correct?

Junior
  1. A.A record — forwarding queries for a specific domain to a chosen DNS server
  2. B.A record — IP addresses within a scope that the server will not lease
  3. C.A record — the Discover, Offer, Request, Acknowledge lease handshake
  4. D.A record — a DNS record mapping a hostname to an IPv4 address

Answer + AI explanation with Pro

4. What is CNAME record?

Junior
  1. A.a DNS record that aliases one name to another name
  2. B.the scope option that delivers DNS server addresses to clients
  3. C.a DNS record locating services (used heavily by Active Directory)
  4. D.IP addresses within a scope that the server will not lease

Answer + AI explanation with Pro

5. Which term means: "a DNS record that aliases one name to another name"?

Junior
  1. A.A record
  2. B.CNAME record
  3. C.DNS scavenging
  4. D.DHCP scope

Answer + AI explanation with Pro

6. Which statement is correct?

Junior
  1. A.CNAME record — a DNS record that aliases one name to another name
  2. B.CNAME record — a DNS record identifying a domain's mail servers
  3. C.CNAME record — a DNS zone stored in AD and replicated with domain controllers
  4. D.CNAME record — the Discover, Offer, Request, Acknowledge lease handshake

Answer + AI explanation with Pro

7. What is PTR record?

Junior
  1. A.IP addresses within a scope that the server will not lease
  2. B.the Discover, Offer, Request, Acknowledge lease handshake
  3. C.a DNS record identifying a domain's mail servers
  4. D.a DNS record mapping an IP address back to a hostname (reverse)

Answer + AI explanation with Pro

8. Which term means: "a DNS record mapping an IP address back to a hostname (reverse)"?

Junior
  1. A.PTR record
  2. B.SRV record
  3. C.DHCP scope
  4. D.conditional forwarder

Answer + AI explanation with Pro

9. Which statement is correct?

Junior
  1. A.PTR record — the DNS record defining a zone's authoritative source and serial
  2. B.PTR record — a DNS record mapping an IP address back to a hostname (reverse)
  3. C.PTR record — the Discover, Offer, Request, Acknowledge lease handshake
  4. D.PTR record — forwarding queries for a specific domain to a chosen DNS server

Answer + AI explanation with Pro

10. What is MX record?

Junior
  1. A.a DNS record identifying a domain's mail servers
  2. B.a configured range of IP addresses a DHCP server can lease
  3. C.automatic removal of stale dynamic DNS records
  4. D.a DNS record mapping an IP address back to a hostname (reverse)

Answer + AI explanation with Pro

11. Which term means: "a DNS record identifying a domain's mail servers"?

Junior
  1. A.MX record
  2. B.DHCP scope
  3. C.DHCP option 006
  4. D.A record

Answer + AI explanation with Pro

12. Which statement is correct?

Junior
  1. A.MX record — a DNS record identifying a domain's mail servers
  2. B.MX record — IP addresses within a scope that the server will not lease
  3. C.MX record — the Discover, Offer, Request, Acknowledge lease handshake
  4. D.MX record — a DNS record listing the authoritative name servers for a zone

Answer + AI explanation with Pro

13. What is SRV record?

Mid
  1. A.a DNS record locating services (used heavily by Active Directory)
  2. B.the Discover, Offer, Request, Acknowledge lease handshake
  3. C.a DNS zone stored in AD and replicated with domain controllers
  4. D.forwards DHCP broadcasts across subnets to a central server

Answer + AI explanation with Pro

14. Which term means: "a DNS record locating services (used heavily by Active Directory)"?

Mid
  1. A.AD-integrated zone
  2. B.MX record
  3. C.DHCP relay / IP helper
  4. D.SRV record

Answer + AI explanation with Pro

15. Which statement is correct?

Mid
  1. A.SRV record — IP addresses within a scope that the server will not lease
  2. B.SRV record — a DNS record mapping an IP address back to a hostname (reverse)
  3. C.SRV record — a DNS record listing the authoritative name servers for a zone
  4. D.SRV record — a DNS record locating services (used heavily by Active Directory)

Answer + AI explanation with Pro

16. What is DHCP DORA?

Junior
  1. A.a DNS record that aliases one name to another name
  2. B.a DNS record mapping a hostname to an IPv4 address
  3. C.the Discover, Offer, Request, Acknowledge lease handshake
  4. D.a fixed IP assigned to a specific MAC address

Answer + AI explanation with Pro

17. Which term means: "the Discover, Offer, Request, Acknowledge lease handshake"?

Junior
  1. A.SRV record
  2. B.DHCP DORA
  3. C.AD-integrated zone
  4. D.DHCP exclusion

Answer + AI explanation with Pro

18. Which statement is correct?

Junior
  1. A.DHCP DORA — the DNS record defining a zone's authoritative source and serial
  2. B.DHCP DORA — a DNS record that aliases one name to another name
  3. C.DHCP DORA — the scope option that delivers DNS server addresses to clients
  4. D.DHCP DORA — the Discover, Offer, Request, Acknowledge lease handshake

Answer + AI explanation with Pro

19. What is DHCP relay / IP helper?

Mid
  1. A.IP addresses within a scope that the server will not lease
  2. B.a DNS record identifying a domain's mail servers
  3. C.forwards DHCP broadcasts across subnets to a central server
  4. D.a DNS record listing the authoritative name servers for a zone

Answer + AI explanation with Pro

20. Which term means: "forwards DHCP broadcasts across subnets to a central server"?

Mid
  1. A.DHCP option 006
  2. B.DHCP relay / IP helper
  3. C.MX record
  4. D.PTR record

Answer + AI explanation with Pro

21. Which statement is correct?

Mid
  1. A.DHCP relay / IP helper — a DNS record locating services (used heavily by Active Directory)
  2. B.DHCP relay / IP helper — IP addresses within a scope that the server will not lease
  3. C.DHCP relay / IP helper — forwarding queries for a specific domain to a chosen DNS server
  4. D.DHCP relay / IP helper — forwards DHCP broadcasts across subnets to a central server

Answer + AI explanation with Pro

22. What is DHCP reservation?

Mid
  1. A.a fixed IP assigned to a specific MAC address
  2. B.a DNS record mapping an IP address back to a hostname (reverse)
  3. C.forwarding queries for a specific domain to a chosen DNS server
  4. D.a DNS record listing the authoritative name servers for a zone

Answer + AI explanation with Pro

23. Which term means: "a fixed IP assigned to a specific MAC address"?

Mid
  1. A.conditional forwarder
  2. B.SOA record
  3. C.DHCP reservation
  4. D.A record

Answer + AI explanation with Pro

24. Which statement is correct?

Mid
  1. A.DHCP reservation — forwarding queries for a specific domain to a chosen DNS server
  2. B.DHCP reservation — forwards DHCP broadcasts across subnets to a central server
  3. C.DHCP reservation — a fixed IP assigned to a specific MAC address
  4. D.DHCP reservation — a DNS record listing the authoritative name servers for a zone

Answer + AI explanation with Pro

25. What is SOA record?

Junior
  1. A.a DNS record mapping an IP address back to a hostname (reverse)
  2. B.the scope option that delivers DNS server addresses to clients
  3. C.the DNS record defining a zone's authoritative source and serial
  4. D.a DNS record that aliases one name to another name

Answer + AI explanation with Pro

26. Which term means: "the DNS record defining a zone's authoritative source and serial"?

Junior
  1. A.DNS scavenging
  2. B.DHCP reservation
  3. C.SOA record
  4. D.DHCP DORA

Answer + AI explanation with Pro

27. Which statement is correct?

Junior
  1. A.SOA record — a DNS zone stored in AD and replicated with domain controllers
  2. B.SOA record — the DNS record defining a zone's authoritative source and serial
  3. C.SOA record — a DNS record listing the authoritative name servers for a zone
  4. D.SOA record — the scope option that delivers DNS server addresses to clients

Answer + AI explanation with Pro

28. What is NS record?

Junior
  1. A.a DNS record listing the authoritative name servers for a zone
  2. B.the DNS record defining a zone's authoritative source and serial
  3. C.the Discover, Offer, Request, Acknowledge lease handshake
  4. D.a configured range of IP addresses a DHCP server can lease

Answer + AI explanation with Pro

29. Which term means: "a DNS record listing the authoritative name servers for a zone"?

Junior
  1. A.SRV record
  2. B.NS record
  3. C.DHCP scope
  4. D.CNAME record

Answer + AI explanation with Pro

30. Which statement is correct?

Junior
  1. A.NS record — a DNS record listing the authoritative name servers for a zone
  2. B.NS record — a DNS record that aliases one name to another name
  3. C.NS record — a configured range of IP addresses a DHCP server can lease
  4. D.NS record — a DNS record identifying a domain's mail servers

Answer + AI explanation with Pro

Showing 30 of 48 Windows · DNS & DHCP questions — the full set, with answers, explanations and an AI tutor on every question, is inside.

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