Assume that a voice channel occupies a bandwidth of 4 kHz. We need to multiplex 10 voice channels with guard bands of 500 Hz using FDM. Calculate the required bandwidth. Select one: O a. 45000 O b. 9000 O c. 4540 O d. 44500
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- When the result of a signed arithmetic operation is either too big or too tiny to fit into the destination, which flag is set?In the 4-bit signed number system, which is the correct answer requested for flags as a result of the operation performed for the following statement. 1100 - 0110 = 0110 Lütfen birini seçin: a. C = 1, V = 0, Correct answer = Yes b. C = 0, V = 1, Correct answer = Yes c. C = 1, V = 1, Correct answer = NO d. C = 1, V = 1, Correct answer = Yes e. C = 0, V = 1, Correct answer = NOIn cyclic redundancy checking, if g(x) =1011, d(x)= 0100, and the remainder to be 111, what is the codeword c(x) a. 1011111 b.0100111 c. 10110100 d.01001011 e. 1011 f. 0100 g. 111
- p T Note: The notation from this problem is from Understanding Cryptography by Paar and Pelzl. Suppose you have an LFSR with 6 state bits. The first 12 bits of output produced by this LFSR are 100011011000 = s0 $1 $2 S3 S4 S5 S6 87 Sg S9 S10 S11 - The first bit produced is the leftmost bit and the bit most recently produced is the rightmost bit. a) What is the initial state of the LFSR? Please enter your answer as unspaced binary digits (e.g. 010101 to represent S5 = 0, s4 = 1, 83 = 0, s2 = 1, s1 = 0, so = 1). %3D b) What are the tap bits of the LFSR? Please enter your answer as unspaced binary digits (e.g. 010101 to represent P5 = 0, p4 = 1, pP3 = 0, p2 = 1, p1 = 0, po = 1).The write UDPsocket programming code is rdt2 in python where: #Client: 1)function get data from user 2)function add port number 3)function calculate checksum 4)function add IP 5)function send/retransmit #Server: 1)function receve paket 2)function check IP (error) 3)function re calculate checksum (send OK if correct checksum else send NACK) 4)function output data in screenEach item in a store's inventory is assigned a unique binary sequence using binary numerals. If the shop has between 75 and 100 goods in its inventory, what is the minimum amount of bits necessary for each binary sequence?
- Computer NETWORKS A bit stream X is transmitted using the standard CRC method, where, X is the 8 bit ASCII of 49 and divisor will be the 8 bit ASCII of 9 . [Note: remove the left most 0’s from X as well as divisor]. Write down the complete procedure to create codeword at sender side and then check at receiver side that either the data received is correct or not?In AES, a 128-bit key is expanded to 44 words which are used for each round. If the round key EB C2 83 20 A5 7D 3A C2 41 2A F6 62 7E 8F 23 2D is for the 5th round, calculate the roundkey for round 6IEEE 754-2008 contains a half precision that is only 16 bits wide. The leftmost bit is still the sign bit, the exponent is 5 bits wide and has a bias of 15, and the fraction is 10 bits long. A hidden 1 is assumed as part of the significand just like the IEEE-754 format we learnt in the class. Write down the bit pattern to represent −0.15625 × 100 in IEEE 754-2008 half-precision format. You need to find out the bits for the sign, the exponent, and the fraction. To answer this question, you need to convert the decimal fraction to its binary representation. Check out the link given in Q1. You have to show all steps including the fraction conversion (from decimal to binary).
- In this problem, you will design a circuit that encrypts (plaintext to cipher) and decrypts (cipher to plaintext) ASCII characters. The relationship between the plaintext character and cipher character is shown in the table below: plaintext character cipher character 1-? A-O P-Z space t-~ 0 In this table, the "0" and "1" refer to the characters "0" and "1", not the numerical values. Additionally, the circuit only needs to account for character listed in the table. The circuit has nine bits of input: • d = d7... do: an eight-bit number that is the binary representation of the input ASCII character • e: a single bit indicating if the circuit should encrypt (e = 1) or decrypt (e = 0) the given character The circuit has eight bits of output: • r = r7...ro: an eight-bit number that is the binary representation of the output ASCII character Draw the implementation of the circuit. The circuit does not have to be transistor-minimal; you are encouraged to use various combinational circuitry to…Which flag is set when the result of a signed arithmetic operation is either too large or toosmall to fit into the destination?The following message uses a direct mapping of letters to numbers (i.e. A-1, B=2, c-3, etc.).Using the values D=17 and m=21, decrypt the following message:10 15 12 18 1 3 17 14 7 18 14 17 17 9 18 14