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The blowfish algorithm’s key expansion converts a key of at most 448 bits into several subkey arrays totaling ___________ bytes.
The blowfish algorithm’s key expansion converts a key of at most 448 bits into several subkey arrays totaling ___ bytes.
Assume that a 12-bit Hamming codeword consisting of 8-bit data and 4 check bits is d8d7d6d5c8d4d3d2c4d1c2c1, where the data bits and the check bits are given in the following tables: Data bits d8 d7 d6 d5 d4 d3 d2 d1 1 1 0 x 0 1 0 1   c8 c4 c2 c1 Y 0 1 0 Which one of the following choices gives the correct values of x and y?
Which statement(s) about IPv4 and IPv6 addresses are true?1. An IPv6 address is 32 bits long, represented in hexidecimal.2. An IPv6 address is 128 bits long, represented in decimal.3. An IPv4 address is 32 bits long, represented in decimal.4. An IPv6 address is 128 bits long, represented in hexidecimal.
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
The human eye is a complex part of the body that is used for seeing. Eyes enable people to perform daily tasks and to learn about the world that surrounds them. Sight, or vision, is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. When someone looks at an object, what he really sees is the light reflected from the object. This reflected light passes through the lens and falls on the retina of the eye. Here the light induces nerve impulses that travel through the optic nerve to the brain and then over other nerves to muscles and glands.
The eye is similar to a television camera. Both the eye and the television camera convert light energy to electrical energy. The eye converts light to nerve impulses that are interpreted by the brain as the sense perception called sight. A television camera converts light to electronic signals that are broadcast and transformed into light images in a television receiver. It is wonderful that human eyes blink an average of once every six seconds. This washes the eye with the salty secretion from the tear or lachrymal glands. Each tear gland is about the size and shape of an almond. These glands are situated behind the upper eyelid at the outer corner of the eye. After passing over the eye, the liquid from the gland is drained into the nose through the tear duct at the inner corner of the eye. The sense perception that the brain releases after the eye converts light to nerve impulses is known as
Which of the following codes uses a number of parity bits located at certain positions in the codeword and uses the relations between redundancy bits and the data bits?
A message consisting of 2400 bits is to be passed over the Internet. The message is passed to the transport layer which appends a 150-bit header, followed by the network layer which uses a 120-bit header. Network layer packets are transmitted via two networks, each of which uses a 26-bit header. The destination network only accepts up to 900 bits long. The number of bits, including headers delivered to the destination network, is
When two 8-bit numbers A7 … A0 and B7 … B0 in 2’ s complement representation (with A0 and B0 as the least significant bits) are added using a ripple-carry adder, the sum bits obtained are S7 … S0 and the carry bits are C7 … C0. An overflow is said to have occurred if
Given below are two statements:  Statement I: Minimum number of bits required to store any 3-digit decimal number is 10.  Statement II: The data in a digital computer is stored in terms of bits/ bytes where one Peta Byte is equal to 250 bits. In the light of the above statements, choose the correct answer from the options given below:
How many bits are there for random bits and error detection bits in the case of DES block ciphers?