Answer:
select sum(HoursWorked)
from OWNER
where ExperienceLevel <> 'Junior'
group by ExperienceLevel
having count(*) >= 3
Explanation:
First use the sum function on HoursWorked column of OWNER table. Then put the required condition of not including employees with experience level of Junior. And then use group by function to bulk the results by experience level and group only results with equal to or more than 3 records.
Answer:
The appropriate response will be "Public key".
Explanation:
- A public key would be created in something like such key encryption cryptography consisting incorporates asymmetric encryption of the keys algorithms.
- Those same keys have been utilized to transform a document to even such an unintelligible form. Decryption consists done using only a separate, however corresponding, secret address or private key.
Answer:
Explanation:
Take a as the 0th index and z as the 25th index.
send shift with key 9017 will give
s=b
e=e
n=o
d=k.
s shift 9 places lands the letter b.
Similarly for more money, the result is jdmsxzpmh.
the ciphertext is "beokjdmsxzpmh"
b)
take the first 4 ciphertext
"beok".
Calculate the shift from b to s which is 17 shifts. thus beok can be decrypted with key 17 0 24 19 to get "send"
thus the resulting key is 17 0 24 19 3 11 5 12 15 14 2 8 17
Answer: ensuring that a system is not changed by a subject that is not authorized to do so
Explanation: Access control refers to pribcues which are employed in the bid thlo ensure the security of data and information. It provides the ability to authenticate and authorize access to information and data thereby preventing unwarranted access and tampering of the information. Integrity in terms of data security and access control is is concerned with modification to an existing or original data by unauthorized sources. When unauthorized addition or subtraction occurs on a data, the integrity of such data has been compromised. Therefore, authorization is required whenever a source is about to access certain information whereby only those with the right authorization code will be allowed, Inputting an incorrect pass code after a certain number of tries may result in system lock down as access control detects a a possible intrusion