Consider IPv4, each IP address + a port number gives a unique connection (referred to as...
Consider IPv4, each IP address + a port number gives a unique connection (referred to as Internet socket). If 1/4 of the bits in the port field (16 bits) of the TCP header is fixed for certain reason, how many unique connections can be formed?
Homework Answers
Given port field has 16 bits and given 4 bits are fixed so total =16-4=12 bits
Total hosts =2^12 -1
=4096-1
=4095 hosts
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Consider IPv4, each IP address + a port number gives a unique
connection (referred to as...
Consider IPv4, each IP address + a port number gives a unique connection (referred to as...
Consider IPv4, each IP address + a port number gives a unique connection (referred to as Internet socket). If 1/4 of the bits in the port field (16 bits) of the TCP header is fixed for certain reason, how many unique connections can be formed?
12. The combination of the source and destination IP addresses and the source and destination port...
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The IPv6 addresses are followed by a % sign and a number; for example, %5 follows...
The IPv6 addresses are followed by a % sign and a number; for example, %5 follows the first IP address. This number is called the zone ID or scope ID and is used to identify the interface in a list of interfaces for this computer. IPv6 addressing is designed so that a computer can self-configure its own link-local IP address, which is similar to how IPv4 uses an Automatic Private IP Address (APIPA). Here's what happens when a computer using...
10. In a network an IP address and prefix is given as 192.168.130.34/17. What is the...
10. In a network an IP address and prefix is given as 192.168.130.34/17. What is the subnet mask? (A) 0.0.127.255 (B) 255.255.0.0 (C) 255.255.128.0 (D) 0.0.2.34 11. In a network an IP address and prefix are given as 192.168.130.34/17. How many host addresses are there? (A) 34 (B) 32766 (C) 131072 (D) 2 12. One result of subnetting is that the size of the routing table in the routers is reduced (A) True (8) False 13. The port number is...
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Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
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An IP address is a 32-bit number that uniquely identifies a host (computer or other device,...
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12. The combination of the source and destination IP addresses and the source and destination port numbers is known as a socket. What is a socket used for? 13. Label the following port number ranges. _0 to 1023 1024 to 49151 49152 to 65535 14. What DOS command can be used to see which active TCP connections are open and wing on a networked host? 15. Why is dividing application data into segments necessary 16. Labelcach of the following delivery...
The IPv6 addresses are followed by a % sign and a number; for example, %5 follows the first IP address. This number is called the zone ID or scope ID and is used to identify the interface in a list of interfaces for this computer. IPv6 addressing is designed so that a computer can self-configure its own link-local IP address, which is similar to how IPv4 uses an Automatic Private IP Address (APIPA). Here's what happens when a computer using...
10. In a network an IP address and prefix is given as 192.168.130.34/17. What is the subnet mask? (A) 0.0.127.255 (B) 255.255.0.0 (C) 255.255.128.0 (D) 0.0.2.34 11. In a network an IP address and prefix are given as 192.168.130.34/17. How many host addresses are there? (A) 34 (B) 32766 (C) 131072 (D) 2 12. One result of subnetting is that the size of the routing table in the routers is reduced (A) True (8) False 13. The port number is...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
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An IP address is a 32-bit number that uniquely identifies a host (computer or other device, such as a printer or router) on a TCP/IP network. IP addresses are normally expressed in dotted-decimal format, with four numbers separated by periods, such as 192.168.123.132. To understand how subnet masks are used to distinguish be- tween hosts, networks, and subnetworks, examine an IP address in binary notation. For example, the dotted-decimal IP address 192.168.123.132 is (in binary notation) the 32 bit num-...
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