I can think of the following reasons:
- Avoid magic numbers. The constant will have a descriptive name like "MAX_MEASUREMENTS" so it can be inferred what the array size really means.
- Avoid duplication. There could be some related code (e.g., code that checks if an index is within the array bounds) that can benefit from using the same constant. Then it makes sense to tie them together such that if you change the constant, you're actually changing all its occurrances.
- Central configuration. By placing all your constants in a centralized place in the code, it is clear to see where your configuration resides. This is easier than having magic numbers scattered throughout the code.
The SOA is the specific record type found in every zone and contains information that identifies the sever primarily responsible for the zone as well as some operational properties for the zone.
Explanation:
The Start of Authority Records (SOA) has the following information they are
Serial Number: This number is used to find when zonal information should be replicated.
Responsible person: The Email address of a person is responsible for managing the zone.
Refresh Interval: It specifies how often a secondary DNS server tries to renew its zone information.
Retry Interval: It specifies the amount of time a secondary server waits before retrying the zone information has failed.
Expires After: IT specifies the amount of time before a secondary server considers its zone data if it can't contact with the primary server.
Minimum TTL: It specifies the default TTL value for a zone data when a TTL is not supplied.
Answer:
teach the assistant bits and pieces of the program.
Explanation:
Given that the program is fairly complex and has many independent components, the most ideal way Nilsu should train a new administrative assistant on using a word processing program is by "teaching the assistant bits and pieces of the program."
This will make the administrative assistant understand and operate the program at a gradual pace without anhthing looking confusing.
