Answer:
C
Through the target's web server's log.
Explanation:
A web server is a server software or a hardware that is fully dedicated to the running of that software. It satisfies a user's request on the www that is the World Wide Web. A web server can, contain just one or more websites.
It processes incoming network requests over HTTP and several other related protocols.
It also stores the webpages the user have visited in the past. Tracking the target's web server to know what enter or left can expose the hacker that is scanning a user's web server.
On Windows, if you use CMD, there is a command called 'move' and using a Linux terminal, it's 'mv'
Answer:
UPDATE COMPANY
SET COMM=COMM + 500
WHERE SALES> 20000;
Explanation:
The update command is used for alter the record in the database management system in the table .The update command command modify the record on the some condition in the table in the database management system.
Following are syntax for using the update command .
UPDATE table-name
SET column name 1,column name 2 .........
Where condition
- In the given question table -name is "COMPANY" the condition is on the sales column and it update the table only when sales is more than 20000 and set the column COMM by 500.
Answer:
video codecs
Explanation:
A video converter can be defined as a software application or program designed to avail end users the ability to convert video files from one digital format to another. After the conversion of the video is complete, the components of the video format such as aspect ratio (e.g 16:9, 4:3 etc), resolution (e.g 1028×760, 640×320), audio and video codecs (e.g mp3, mp4, H.264 etc), the bit rate are also converted depending on the choice of the user.
Encoding a video format and then decoding it during playback is one of the functions of MPEG-4 and H.264 file players. MPEG-4 and H.264 are known as video codecs.
