Answer:
Data link layer enables the receiving node to send an acknowledgement.
Explanation:
The data link has following function;
1 it send the acknowledgement to the node because for the reliable transmission.
2.Data link layer provides the interface to the network layer.
3.it regulate the flow of data.
4.It control the transmission error.
The important function of data link layer it created packets of the data to send the packets in guarantee manner for giving the acknowledgement to the node that data is received successfully.
Answer:
This is the second question like this I've seen. They aren't the greatest.
Explanation:
The question is not good. The answer would be option a, Transport even though it doesn't make a whole lot of sense when you really go into detail.
It could also be option d, Application but I think they're going for the first.
Answer:
The account record comprises of Invoice roll up summary fields.
Explanation:
The possible reason that this change was not permitted was that the account record comprises of Invoice roll up summary fields.
Invoice roll up summary fields: A roll-up summary field computes values from associated records, for example those in a linked list. a person or someone ca design a roll-up summary field to show a value in a master record by building the values of fields in a particular record.
The detail record must be associated to the master through a master-detail relationship. for instance, you want to show the sum of invoice amounts for all linked custom object records in an account’s Invoices related list. you can show the whole or sum in a custom account field refereed to as Total Invoice Amount.
Answer:
7.4 Code Practice: Question 1
def GPAcalc(g):
if g == "a" or g == "A":
return 4
elif g == "B" or g == "b":
return 3
elif g == "C" or g == "c":
return 2
elif g == "D" or g == "d":
return 1
elif g == "F" or g == "f":
return 0
Explanation:
