Answer:
try:
cardNumber = str(input('Enter your card number her: \n'))
if (len(cardNumber) > 16 or len(cardNumber < 16)):
raise
except:
print ('You have entered an invalid cardNumber.')
else:
if cardNumber.startswith("2"):
print('American Express Card')
elif cardNumber.startswith("4"):
print('Visa Card')
elif cardNumber.startswith("5"):
print('Master Card')
else:
print('Unknown Card')
Explanation:
In the try block section:
The first line prompt the user for input, which is converted to string and assigned to cardNumber variable. The next line test the length of the cardNumber entered, if it is less than 16 or greater than 16; an exception is raise.
In the except section:
An error message is displayed telling the user that he/she has entered an invalid card number.
In the else section:
This is where is program check for type of card using an if...elif...else statement block. If the cardNumber start with 2; an output of "American Express card" is displayed. If the cardNumber start with 4; an output of "Visa card" is displayed. If the cardNumber start with 5; an output of "Master card" is display else "Unknown card" is displayed to the user.
Answer:
SELECT column_1, column_2, ... column_n
FROM table_name_1
JOIN table_name_2 ON table_name_1.primaryColumn = table_name_2.foreignKeyColumn
AND table_name_3 ON table_name_1.primaryColumn = table_name_3.foreignKeyColumn
Explanation:
The SQL or structured query language statement returns information from the three tables in the database with the 'select' and 'join' clause in the statement. There are several types of join but the default is the inner join. Other types of join are; outer, left and right join.
A is wrong because a folder can have any name.
B is wrong because not all folders of a web server are exposed to the outside, only all folders below the document root.
C sounds good
D is wrong because an image can reside somewhere else as long as you specify the absolute or relative path to it
Answer:
Explanation:
Based on the information provided in this scenario it can be said that this is likely due to there being a cultural lag between having the Internet and using the technology to its full capacity. Cultural lag refers to the notion that culture takes time to catch up with technological innovations, mainly due to not everyone has access to the new technology. As years pass a specific technological advancement becomes more readily accessible to the wider public as is thus more widely adopted.
