The answer is the second one.
Hope this helps! :)
Answer:
- When the primary SOA record serial number is higher than the secondary's
Explanation:
DNS(Domain Name System) is described as the distributed database that sometimes includes all the supporting hardware or software infrastructure. This system employs the internet to translate hostnames into IP addresses and provide other information related to domain.'
Under this system, the secondary name server would request the primary server to pass on a zone transfer 'in case the record serial number of the primary server zone is greater than the secondary.' <u>This will help in promoting forbearances against any kind of faults and also in establishing synchrony between the zone files</u>.
Answer:
2p
Explanation:
if she had p, then she got p again, she got two p amounts. p+p = p*2 = 2p
Answer:
Primary key:
A primary key is the collection of field value which persist unique value in the table. The primary key value can be use to represent the entire record throughout the table. In the database, each table only contain one primary key.
The purpose of the primary key is used to implemented the relationship within the two tables in the database. More explicitly the primary key is define as, primary key is "target" that the foreign key can easily referenced. It basically consist multiple attributes in the table.
Answer:
discriminant = b * b - 4 * a * c
discriminant = b ** 2 - 4 * a * c
Explanation:
The operands are correct and in the right order (for python).
** is the operand for squaring something.
* is the operand for multiplying something.
- is the operand for subtracting something.
