Answer:
B. False.
Explanation:
Cryptanalysis can be defined as the study, art or process of evaluating and analyzing information systems such as ciphertext, cryptographic systems and ciphers. The main purpose of Cryptanalysis is for a better understanding of how the cryptographic system works, in order to find techniques for deciphering, defeating or weakening them without an access to any privileged or secret data (information) required to do so.
Hence, cryptanalysis is made more difficult by having longer keywords as opposed to having shorter keywords which typically would make it easier for an attacker to decipher.
In a nutshell, it is false and incorrect to say that cryptanalysis is made more difficult by having shorter keywords.
Answer:
depends on whether the Pivot Table is inserted into the current worksheet or a new worksheet and the current location of the cursor.
Explanation:
Pivot tables are short tables with few columns and rows out of the original set of rows and columns. And they are being governed by the report filter, and column labels can also be added, as well as rules can be applied to value, but for formulas, we need to create the formula field. However, it can be placed in the current worksheet or a new worksheet and the current location of the cursor.
Answer:
TACACS+
Explanation:
Terminal Access Controller Access-Control System Plus (TACACS+) is a protocol that provides detailed accounting information and flexible administrative control over the authentication, authorization, and accounting process.
The answer is B. A only. The optimum valve timing is found through experimentation using an engine dynamometer. The timing of the opening and closing of the valves is called valve timing. So the use of dynamometer measures the power output of a machine that is why it can measure the optimum valve timing.
Correct Answer:
c.
SELECT InvoiceNumber, VendorName
FROM Invoices JOIN Vendors ON Invoices.VendorID = Vendors.VendorID
WHERE InvoiceTotal IN (SELECT MAX(InvoiceTotal) FROM Invoices)
Explanation:
All options only differ on the WHERE clause:
a: WHERE InvoiceTotal = MAX(InvoiceTotal)
Fails because aggregate functions (like MAX, COUNT, etc) have to be used on the SELECT clause.
b: WHERE InvoiceTotal = (SELECT MAX(InvoiceTotal))
Fails because the SELECT clause is incomplete.
c: WHERE InvoiceTotal IN (SELECT MAX(InvoiceTotal) FROM Invoices)
This one is correct, and returns the InvoiceNumber and VendorName register with the largest value on the InvoiceTotal field.
