Answer:
c. sudo grep "charlie" /var/log/vsftpd.log
Explanation:
- sudo is used to access /var/log files since it requires superuser access
- grep command is used to search for a string of characters in a specified file
- "charlie" is the string searched in the log files
- /var/log/ is where the log files are in linux systems
In the Programming stage of the system development life cycle, the design specifications are translated into computer code
The question is unclear /unfinished please send again.
Answer:
The attached files contain the realization of a D flip-flop from an RS flip-flop. It also contains the truth tables for both kinds of flip-flops
Explanation:
An SR flip flop is like a light switch. Set turns it 'on' and reset turns it 'off'
A D type flip-flop is a clocked flip-flop which has two stable states. A D type flip-flop operates with a delay in input by one clock cycle.
D type flip-flops are easily constructed from an SR flip-flop by simply connecting an inverter between the S and the R inputs so that the input to the inverter is connected to the S input and the output of the inverter is connected to the R input.