Flashcards
Chapter 8-IP Address flashcards
Flashcards do conjunto (40)
- 1What does 255.255.255.255 indicate the packet is being sent toAll networks and all hosts
- 2What does 172.16.255.255 designate a packet is being sent toAll subnets and all hosts on the 172.16 network
- 3What is the major reason why hierarchical IP address schemes are so importantTo make routing possible-if it weren't hierarchical, every router would have to store every host address
- 4What does the network address of an IP address identifyThe network that the host machine is on
- 5What does the host address part of the IP address indicateThe address of the host on whatever network it is on
- 6What octet(s) is(are) used for a network address for a class A IP address and same for a host address.First is Network, 2nd 3rd and 4th are host.
- 7What octet(s) is(are) used for a network address for a class B IP address and same for a host address.1st and 2nd are network, 3rd and 4th are host
- 8What octet(s) is(are) used for a network address for a class C IP address and same for a host address.1st, 2nd and 3rd are network. 4th is host.
- 9What is the range of values for the first octet of a class A IP address0-127
- 10What is the range of values for the first octet of a class B IP address128-191
- 11What is the range of values for the first octet of a class C IP address192-223
- 12What is the first octet range for the Class D multicast address224-239
- 13What is the significance of an IP address where are the host address bits are disabled?Any host
- 14What is the significance of all bits in an IP address disabledAny network.
- 15All host bits enabled = ???Packet meant for all hosts on the current network
- 16All IP address bits enabled = ???Broadcasts to all hosts on the network
- 17What are 2 reasons private IP addresses are used?For security and to save IP address space.
- 18What does a NAT do?Converts private (non-routable) IP addresses to a public (routable) IP address for internet communication.
- 19What is the APIPA address range?169.254.x.y
- 20What is the benefit of the APIPA address schemeTo communicate with other hosts on a network even though the DHCP server is down.
- 21To which machines does a layer 2 broadcast go?All hosts on a LAN
- 22To which machines does a layer 3 broadcast go?To all hosts on a network
- 23What is a possible disadvantage of multicastingLAN congestion
- 24Describe multicastingPackets are sent from a host on one network to a number of hosts on one or more networks.
- 25How many bits are in an IPv6 address and what notation is used?128; hexadecimal
- 26what is a unicast address?Assigned to a single interface
- 27what is a global unicast address?A publicly routable unique IP address. Similar to unique public IP address with IPv4
- 28What are link-local addresses in IPv6Similar to private IP addresses in IPv4. These are not routable on the internet
- 29What is a unique-local address in IPv6?Nearly globally unique IP addresses similar to private IP addresses but able to be routable to multiple local networks.
- 30What is a multicast address in IPv6A one-to-many addressing scheme.
- 31What is an anycast address in IPv6?A one-to-one-of-many. It delivers a packet to the first IPv6 address it finds defined in terms of routing distance.
- 32What is ::Similar to IPv4's 0.0.0.0. It is the address of a host when using DHCP (before config)
- 33What is ::1Equivalent to 127.0.0.1 in IPv4
- 34What is 0:0:0:0:0:0:192.168.100.1This is 192.168.100.1 written in IPv4/IPv6 mixed addressing scheme.
- 35What is 2000::/3Global unicast address in IPv6
- 36What is FC00:/7The unique local unicast address range in IPv6
- 37What is FE80::/10The link-local unicast range
- 38What is FF00::/8The multicast range in IPv6
- 39Why the need for transition to IPv6Running out of public IP addresses in IPv4
- 40What are some benefits of IPv6Better security, less overhead, no broadcasts, routing is more efficient/scalable
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- FlashCards sobre Chapter 8-IP Address flashcards, criado por Joshua Snider em 30-12-2013.
- Criado por
- Joshua Snider
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