ccna question papers with answers

ccna question papers with answers.24= 16 2" = 4096 220= 1048576 228 = 2684354562, = 32 213 = 8192 2 by = 2097152 229 = 53687091226 = 64 2'4 = 16384 222 = 4194304 230= 10737418242, = 128 2^ = 32768 2" = 8388608 2^=214748364828 = 256 216 = 65536 224= 16777216 232 = 42949672963.2.3 Hexadecimal ConversionsAlthough in real life you may use a calculator to convert between decimal, binary, and hexadecimal, the exam may require you to do the conversion manually. Given that some of this chapter involves converting values, here is a brief description of how to convert between decimal, hexadecimal, and binary, with an emphasis on hexadecimal numbers. This topic is revisited in Chapter 6, which introduces TCP/IP addressing, when you will be doing a lot of conversions between decimal and binary.First, as you probably know, each binary bit has two possible values, and a byte contains eight bits, so it can represent a decimal number of 0.255. In decimal, each bit has 10 possible values: 0.9. In hexadecimal, each bit has 16 possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. For example, the hexadecimal representation of the decimal number 10 is A; the hexadecimal representation of the decimal number 17 is llo Each hexadecimal bit is represented by 4 binary bits, and Table 3.7 is a convenient conversion table.The following is a simple example of converting binary to hexadecimal. Suppose there is an 8-bit binary value 10000001,Since each hexadecimal bit corresponds to 4 binary bits, it is divided into two parts of 4 bits each:1000 and 000l When using the hexadecimal representationTo convert this binary value to decimal, add the curtain of 2 corresponding to each bit: the value corresponding to bit 8 is 128, while the value corresponding to bit 1 is 1, so its decimal representation is 129. for the 8-bit binary value 11011001, its hexadecimal and decimal representations are D9 and 217 O