I am guessing "A" because you can store code anywhere and file structure does not prevent viruses.
hope this helped
<span />
The above question has multiple choices as below
A. Data links
B. The post office
C. Driving a car
D. A train
The answer is (B) The Post Office.
In layman’s terms, transport layer is similar to the post office functions of delivering parcels and letters at the agreed delivery deadlines. It also notices any dropped info and re-transmits it.
Just like the post office, the transport layer directs messages and information between specific end users. If by mistake you write a letter to the wrong person, the letter will be returned and the postal employee will stamp it as address unknown.
Answer:
I am not sure can you explain a little more
Answer:
B. Create a unique External ID field on Accounts in SFDC for matching.
Explanation:
- External ID is used to prevent duplicate records from being created as a consequence of the import operation, when importing custom objects or person accounts.
- An external ID is a specific field that contains the External ID attribute.
- External ID has unique record identifiers from a system that is outside the Salesforce.
- When this option is selected Data Import Wizard identifies existing Salesforce records with external IDs that match the values in import file.
- The External ID field enables to keep unique record IDs from an external system, usually for integration.
- External ID field values should be unique and determine whether or not value are case sensitive can also be determined. For example XYZ and xyz will not be considered same if case sensitive option is not selected.