Let speed of boat in still water and speed of boat in upstream be ‘9x’ km/h and ‘5x’ km/h, respectively. Speed of stream = 9x – 5x = 4x km/h Speed of boat in downstream = 9x + 4x = 13x km/h So, 13x = 390/5 = 78 Or, x = 6 Speed of boat in still water = 9 × 6 = 54 km/h Desired time = 18/54 = 20 minutes
Which of the following refers to the forging of the return address on an e-mail so that the e-mail message come from someone else but not the actual sen...
The translation of data into a secret code is known as _______
Which memory hierarchy level is closest to the CPU?
The process of copying files to a CD-ROM is known as
Which of the following is not a input device ?
VPN stands for-------
_______ is a protocol used by e-mail clients to download e-mails to your computer.
An automated process of negotiation that dynamically sets parameters of a communications channel established between two entities before normal communic...
In the hexadecimal number system, which symbols are used to represent values greater than 9?
What is used to make computer chips?
