Answer:
Data manipulation languages are used for the retrieval of the,insertion,deletion and modification of data.
Explanation:
Data Manipulation Languages(DML) are used to insert,delete,update,modify the data in the database.
The commands used to do these operations are as following:-
INSERT INTO :-This command is used to insert values in the database.
DELETE:-It is used to delete existing records from the table.
UPDATE:- It is used to modify the records in the table.
SELECT:- It is used to select data from database.
Answer:
Network security
Explanation:
Network security is a category of cybersecurity that is related to the protection of the infrastructure of the computer network from unauthorized access and intrusion that may be from intended attack or from an expedient program which may result in the modification, malfunctioning, misuse or unacceptable disclosure of the network and the contents of the network
The category of cybersecurity that 'prevents intruders from accessing, misusing, destroying, adapting, or improperly disclosing networks, network infrastructure, or the information contained within networks' is network security.
Answer:
B
Explanation:
all url's begin with https://
Answer: Provided in the explanation section
Explanation:
The Question says;
Identify a logical operation (along
with a corresponding mask) that, when
applied to an input string of 8 bits,
produces an output string of all 0s if and
only if the input string is 10000001.
The Answer (Explanation):
XOR, exclusive OR only gives 1 when both the bits are different.
So, if we want to have all 0s, and the for input only 10000001, then we have only one operation which satisfies this condition - XOR 10000001. AND
with 00000000 would also give 0,
but it would give 0 with all the inputs, not just 10000001.
Cheers i hope this helped !!
