Please help me and answer these questions in computer networks. Thank you! 18.7.
ID: 3834986 • Letter: P
Question
Please help me and answer these questions in computer networks. Thank you! 18.7.3 Problems P18-1. What is the size of the address space in each of the following systems? a. A system in which each address is only 16 bits. A system in which each address is made of six hexadecimal digits. e. A system in which each address is made of four octal digits. P18-2. Rewrite the following IP addresses using binary notation e. 201.24.44.32 a. 110.11.5.88 b. 12.74.16.18 P183. Rewrite the following IP addresses using dotted-decimal notation: a. 01011110 10110000 01110101 00010101 10001001 10001110 11010000 00110001 e. 01010111 10000100 00110111 00001111 P18-4. Find the class of the following classful IP addresses: a. 130.34.54.12 b, 200.34.2.1 245.34.2.8 P18-5. Find the class of the following classful IP addresses: a. 01110111 11110011 10000111 11011101 b, 11101111 11000000 11110000 00011101 11011111 10110000 00011111 01011101 P18-6. n classless addressing, show the whole address space as a single block using the CIDR notation. -7. In classless addressing, what is the size of the block (N if the value of the pre PIs fix length (n) is one of the following? 14Explanation / Answer
P18.1
a) address space = 216 = 65536
b) Given hat it is hexadecimal and no of bits are: 6. hexadecimal means 16.
Then ans is: 26*24 =210 = 1024
c) Given hat it is octal and no of bits are: 4. octal means 8.
Then 24*23 = 27 = 128.
P18.2:
To retrive given addresses to binary we need to convert each of segments into 8-bit binary notation.
a) 110.11.5.88
01101110.01101110.00000101.01011000
b) 12.74.16.18
00001100.01001010.00010000.00010010
c)201.24.44.32
11001001.00011000.00101100.00100000
P18-3.
To retrive given binary addresses to decimal we need to convert each of segments into binary notation.
a) 01011110.10110000.01110101.00010101
94.176.117.21
b) 10001001.10001110.11010000.00110001
137.142.208.49
c)01010111.10000100.00110111.00001111
87.132.55.15.
P18-4.
To find the class of Ip address,by Looking at the first octet of an IP address, we can identify the class of that address: Class A =1-126 Class B =128 -191 Class C =192 -223 Class D =224 –239 Class E =240 –254.
a) 130.34.54.12
130 menas it is in class B.
b) 200.34.2.1
200 means it is in class C.
c)245.34.2.5
245 means it is in class E.
P18-5.
a) 01110111.11110011.10000111.11011101
1st octet is 01110111 by converting into decimal it is 119. It is in class A.
b) 11101111.11000000.11110000.00011101
1st octet is 11101111 by converting into decimal it is 239. It is in class D.
c) 11011111.10110000.00011111.01011101
1st octet is 11011111 by converting into decimal it is 223. It is in class C.
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