Checkpoint Tcp/Ip Plan Essay examples

1375 Words Dec 26th, 2012 6 Pages
CheckPoint TCP/IP LAN Plan 1, 2, 4, 11, 14, 15, 16, & 20 1. An IPv6 address is made up of how many bits?

d. 128

IPv6 uses 128-bit hexadecimal addresses and has built-in security and QoS features. An IPv6 address is 128 bits rather than the 32 bits in an IPv4 address. This length increases the number of possible addresses from about 4 billion in IPv4 to 3.4 x 1038 addresses (that’s 34 followed by 37 zeros!) in IPv6. Unless IP addresses are assigned to every star in the universe, it’s safe to say enough IPv6 addresses will be available.
Unlike IPv4 addresses, which are specified in dotted decimal notation in 8-bit sections, IPv6 addresses are specified in hexadecimal format in 16-bit sections separated by a colon, as in
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11. When using TCP/IP, which of the following must computers on the same logical network have in common? (Choose all that apply.)

a. Network ID
b. Host ID
c. Subnet mask
These three things are necessary for the computers to be able to distinguish one another as well as to communicate. An IP address is assigned to every computer and network device using TCP/IP for communication. IP addresses are used for two main purposes: to identify a network device at the Internetwork layer and to identify the network on which a device resides. When an IP address is assigned to a computer or network device (referred to as an “IP host” or just “host”), the host’s Internetwork-layer identity is defined. When an IP address is assigned to a computer or other IP device, it’s always accompanied by a subnet mask. IP uses an address’s subnet mask to determine which part of the address denotes the network portion and which part denotes the host. It’s a 32-bit number in dotted decimal format consisting of a string of eight or more binary 1s followed by a string of 0s. A binary 1 in the subnet mask signifies that the corresponding bit in the IP address belongs to the network address, and a binary 0 signifies that the corresponding bit in the IP address belongs to the host ID.

14. How many bits must be reallocated from host ID to network ID to create 16 subnets?

4

I unfortunately can’t explain this as well as need be because I’m not exactly sure if I

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