Disabling unused ports and interfaces.
Securing administrative access. 
Router hardening means that the router is secured against attacks as best as possible. Router hardening is one among the three areas of router security that must be maintained to secure an edge router at the network perimeter. Basically, router hardening secures from tough-to-crack passwords, to the shutting down of unnecessary interfaces, ports, and services. Look for any unused router interfaces and disable them by issuing the shutdown command. Disabling unused services typically include BOOTP, CDP, FTP, TFTP, PAD, and a few others. You can also disable administrative and management protocols currently not being  like HTTP or HTTPS, DNS, and SNMP.
 
        
             
        
        
        
Converting raw data into a more meaningful form is called: processing
        
             
        
        
        
Answer:
Block style is a special style or format that is adopted to write Business Letters.
Explanation:
We all know that for writing Business Letters a formal style is adopted in order to convey important information regarding business matters.
So by following Block Style in the Business Letters we mean to write the letter according to the rules below:
Text for the letter should be justified Left completely.
Single spacing should be used for text.
Double spacing should be used for paragraphs.
1 inch margin should be left on each side.
Built-in Letter Wizard for formatting can also be used while dealing with BLOCK STYLE FOR BUSINESS LETTERS.
I hope it will help you!
 
        
             
        
        
        
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