Describe a block cipher.
What will be an ideal response?
A block cipher manipulates an entire block of plaintext at one time. The plaintext message is divided into separate blocks of 8 to 16 bytes, and then each block is encrypted independently. For additional security, the blocks can be randomized.
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Answer the following statements true (T) or false (F)
1. Cloudiness primitives are not directly implemented within the cloud infrastructure itself, making Cloudiness highly inefficient. 2. With information-centric networking (ICN), a distinction exists between location and identity. 3. Virtualization technologies effectively emulate or simulate a hardware platform, such as a server, storage device, or network resource, in software. 4. A machine running virtualization software can only host applications that are running on the same operating systems. 5. Hardware virtualization is the use of software to partition a computer's resources into separate and isolated entities called virtual machines.
Wi-Fi networks used in homes and public hotspots use the ________
A) W3C standards B) IEEE 802.11 standards C) POP protocols D) SMTP protocols
In Excel Online, line charts illustrate a connection or transition between data points
Indicate whether the statement is true or false
Which of the following is not an important future trend in communication and networking?
a. development of online batch systems b. integration of voice, video, and data c. pervasive networking d. provision of new information services on rapidly expanding networks e. development of extremely high speed broadband networks