Answer:
The purpose of the backup is to create a copy of data that can be recovered in the event of a primary data failure. Primary data failures can be the result of hardware or software failure, data corruption, or a human-caused event, such as a malicious attack (virus or malware), or accidental deletion of data.
Answer:
At entry level of any job, the reading that is essential to know is "<u>User manual</u>" Reading.
Explanation:
In any company or the firm in which some one wants to start at entry level, He needs to know about different rules, components, machines and systems of the company. To fulfill this purpose he needs to read some documents related to operations and functionalities of above mentioned parameters.
<em>These documents are called User Manuals. It contains all necessary information related to the system that will be helpful for the user. In this document step by step process are mentioned to handle the machine or device that is very helpful for entry level employ.</em>
Answer and Explanation:
Messages flow across an SDN controller's:
Northbound APIs:
• Messages which help in read/write state of the network and developing flow tables within the
state management layer.
• Notifications for the state-change events.
• The interaction between the controller and network control applications is done through the
northbound interface.
• Network control applications send messages to the controller.
Southbound APIs:
• Messages which help for the up-to-date view of the network's state like message for the
attached link has gone up or down, new devices are joined the network, or indications of the
device is up or down.
• Controller's southbound interface is the communication among the controller and the controlled
devices. Controlled devices are the recipients of the messages sent form the controller.
Answer:
The program in QBasic is as follows;
PRINT "Number: "
INPUT N
LET FACT = 1
FOR I = 1 TO N
FACT = FACT * I
NEXT I
PRINT FACT
END
Explanation:
This prompts user for number
PRINT "Number: "
This accepts input from the user
INPUT N
This initializes the factorial to 1
LET FACT = 1
This iterates through the number the user inputs and calculates its factorial
<em>FOR I = 1 TO N
</em>
<em> FACT = FACT * I
</em>
<em>NEXT I
</em>
This prints the factorial
PRINT FACT
The program ends here
END
