CompTIA Network+ Practice Test

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What information is typically included in a Start of Authority (SOA) record?

IP address of the domain
Names of all hosts in the zone
Details about the zone and timing parameters
Encryption method used by the domain

The correct answer is: Details about the zone and timing parameters

The Start of Authority (SOA) record is a crucial part of DNS (Domain Name System) that provides essential details about a particular DNS zone. It serves as the starting point for any DNS information related to the zone. The SOA record typically includes several key pieces of information: 1. The primary name server for the domain, which is responsible for managing the zone. 2. The email address of the domain administrator, allowing for contact regarding issues in the zone. 3. Various timing parameters that dictate how secondary name servers should update and refresh their data. This includes the serial number, refresh rate, retry time, expire time, and minimum TTL (Time to Live). These elements are critical for maintaining synchronization and ensuring proper operation of the DNS service. By defining how often secondary servers should check for updates and how long they should cache information, the SOA record plays a vital role in the reliability and efficiency of DNS operations. Thus, selecting the option that points to the detailed information about the zone and timing parameters accurately reflects the content of a Start of Authority record.