DNS record types, resolution process, DHCP DORA, NAT and PAT, NTP, SNMP, syslog and common service ports.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What does an A record do in DNS?
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Maps a domain name to an IPv4 address- What does an AAAA record map?
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Domain name to IPv6 address- What type of record creates a domain alias?
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CNAME (Canonical Name) record- Which record type specifies mail server location?
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MX (Mail Exchange) record- What does an NS record identify?
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Authoritative nameserver for a domain- What information does an SOA record contain?
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Zone authority, serial number, and timing information- What is a TXT record commonly used for?
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SPF, DKIM, and DMARC email authentication records- What is a PTR record used for?
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Reverse DNS lookups (IP address to domain name)- What type of record specifies service location in a domain?
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SRV (Service) record- What does an SPF record prevent?
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Email spoofing by authorizing which servers can send mail- In a recursive DNS query, who must provide the final answer?
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The nameserver queried by the resolver- What does a nameserver return in an iterative query if it lacks the answer?
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Referral to another nameserver- What is the role of a DNS resolver?
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Initiates DNS queries on behalf of a client application- What is the role of a root nameserver?
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Directs queries to appropriate TLD nameservers- What domain queries does a TLD nameserver handle?
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Queries for a specific top-level domain like .com or .org
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