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:
Customer Table
- Customer name
- Customer id
Product Table
- Product id/number (primary key, auto increment)
- Product name
- Product sale price
Transactions Table
- Transaction Id
- Customer Id
- Product id
- Quantity
- Price
- Date
Explanation:
Natalie wants to fetch following information from database
- Look up customer name and sale price
- Sort items in db by product number
To lookup customer name and sale price perform a join on Transactions table and Customer table.Assuming database is build in mysql the query to fetch required results would be
select transction.productId,transaction.customerid,customer.customername from transactions join customer ON
customer.customerid=transcation.customerid
where productid="user provided product id of returned product"
For sorting products by number set produc number in product table a auto increment primary key
Answer: False
Explanation: Software engineering is the designing, analyzing, creating the software application as per the requirement of the user. The programming languages is the base for the designing of the application the software engineering field.
At the time of building system ,there is the requirement of many resources for the development.There is the requirement of the software skills, programming knowledge, resources and tools for the working and designing.Thus, there are different resources, people,skills processes, problem solving skill etc required for the building of the system.
<span>If the temperature gauge moves up to just below the red zone,you should turn off your air conditioner and turn on your
vehicle's heater. Then immediately </span>find a mechanic or pull over safely and contact a road service.
age is a suitable variable name. It's descriptive and concise. Make sure it's lowercase.