Answer:
Certificate Signing Request(CSR).
Explanation:
Certificate Signing Request(CSR):- It is a message that is specially encrypted Which validates the information that is required by CA for the issuing of a digital certificate.
It is the first step towards getting your own SSL certificate.
So we conclude that the answer to this question is Certificate Signing Request (CSR).
Answer:
(a) Correlated.
Explanation:
Correlated subquery :These sub queries reference columns from outer table or uses values from outer query.These sub queries are processed atleast once for every row processed.So because of this reason correlated sub queries can be slow.Since the query in the question also uses value from the outer query so it is a correlated query.
Answer:
We can periodically take a snapshot of the Domain Name System (DNS) caches in the local Domain Name System (DNS) servers.
Explanation:
We can periodically take a snapshot of the Domain Name System (DNS) caches in the local Domain Name System (DNS) servers. The Web server that appears most frequently in the Domain Name System (DNS) caches is the most popular server. This is because if more users are interested in a Web server, then Domain Name System (DNS) requests for that server are more frequently sent by users. Thus, that Web server will appear in the Domain Name System (DNS) caches more frequently.
RDO.
RDO uses the lower-level DAO and ODBC for direct access to databases.
