IP addressing Review Questions

Which if the following is an invalid IP address for a host -10.0.0.1 -128.0.0.1 -224.0.01 -172.0.0.1

224.0.0.1

In a Class C IP address, how long is the network address - 8 bits - 16 bits - 24 bits - 32 bits

24 bits

Which statement regarding private IP addresses is most accurate -Private addresses cannot be used in intranets that require routing -Private addresses must be assigned by a register or ISP -A remote host across the Internet cannot ping your host if it has a private address -Private addresses can only be used by a single administrative domain

A remote host across the Internet cannot ping your host if it has a private address

What two statements about IPv4 and IPv6 address are true -An IPv6 address is 32 bits long, represented in hexdecimal -An IPv6 address is 128 bits long, represented in decimal -An IPv4 address is 32 bits long, represented in decimal -An IPv6 address is 128 bits long, represented in hexdecimal

An IPv4 address is 32 bits long, represented in decimal An IPv6 address is 128 bits long, represented in hexdecimal

Which of the following is a valid Class A address -191.10.0.1 -127.10.0.1 -128.10.0.1 -126.10.0.1

126.10.0.1

An IPv4 address uses 32 bits. How many bits is an IPv6 address -64 -128 -192 -255

128

Which if the following is a valid Class B address -10.1.1.1 -126.1.1.1 -129.1.1.1 -192.168.1.1

129.1.1.1

A host automatically configured with an address from which of the following ranges indicates an inability to contact a DHCP server -169.254.0.x with a mask of 255.255.255.0 -169.254.x.x with a mask of 255.255.0.0 -169.254.x.x with a mask of 255.255.255.0 -169.255.x.x with a mask of 255.255.0.0

169.254.x.x with a mask of 255.255.0.0

Which of the following are private IP addresses (choose two) -12.0.0.1 -168.172.19.39 -172.20.14.36 -172.33.194.30 -192.168.24.43

172.20.14.36 192.168.24.43

Which of the following address is not allowed on the Internet -191.192.168.1 -191.168.169.254 -172.32.255.0 -172.31.12.251

172.31.12.251

Which of the following is a Class C network address -10.10.10.0 -127.0.0.1 -128.0.0.0 -192.255.254.0

192.255.254.0

Which of the following is a layer 2 broadcast -FF.FF.FF.EE.EE.EE -FF.FF.FF.FF.FF.FF -255.255.255.255 -255.0.0.0

FF.FF.FF.FF.FF.FF

IPv6 unicast is running on the Corp router. Which of the following addresses would be used as the EUI-64 address Corp#sh int f0/0 FastEthernet0/0 is up, line protocol is up Hardware is AmdFE, address is 000d.bd3b.0d80 (bia 000d.bd3b.0d80) -FF02::3c3d:0d:bdff:fe3b:0d80 -FF80::3c3d:2d:bdff:fe3b:0d80 -FF80::3c3d:0d:bdff:fe3b:0d80 -FF80::3c3d:2d:bdff:3fe:0d80

FF80::3c3d:2d:bdff:fe3b:0d80

Which of the following is true when describing a unicast address -Packets addressed to a unicast address are delivered to a single interface -These are your typical publicly routable addresses, just like regular publicly routable addresses in IPv4 -These are like private addresses in IPv4 in that they are not meant to be routed -These addresses are meant for nonrouting purposes, but they are almost globally unique, so it is unlikely they will have an address overlap

Packets addressed to a unicast address are delivered to a single interface

Which of the following is true when describing a multicast address -Packets addressed to a unicast address are delivered to a single interface -Packets are delivered to all interface identified by the address. This is also called a one-to-many address -These are like private addresses in IPv4 in that they are not meant to be routed -These addresses are meant for nonrouting purposes, but they are almost globally unique, so it is unlikely they will have an address overlap

Packets are delivered to all interface identified by the address. This is also called a one-to-many address

A host is rebooted and you view the IP address that is was assigned. The address is 169.123.13.14 which of the following happened -The host received an APIPA address -The host received an multicast address -The host received a public address -The host received a private address

The host received a public address. Remember APIPA range is 169.254.0.1 - 169.254.255.254

Which of the following is true when describing an anycast address -Packets addressed to a unicast address are delivered to a single interface -Packets are delivered to all interface identified by the address. This is also called a one-to-many address -This address identifies multiple interfaces, and the anycast packet is delivered to only one address: the closest one. This address can also be called one-to-nearest -These addresses are meant for nonrouting purposes, but they are almost globally unique, so it is unlikely they will have an address overlap

This address identifies multiple interfaces, and the anycast packet is delivered to only one address: the closest one. This address can also be called one-to-nearest

What two statements about IPv6 addresses are true -Leading zeros are required -Two colons (::) are used to represent successive hexdecimal fields of zeros -Two colons (::) are used to separate fields -A single interface will have multiple IPv6 addresses of different types

Two colons (::) are used to represent successive hexdecimal fields of zeros A single interface will have multiple IPv6 addresses of different types

Which of the following describes a broadcast address -all network bits are on (1s) -all host bits are on (1s) -all network bits are off (0s) -all host bits are off (0s)

all host bits are on (1s). if your turned on all host bits (all of the host bits are 1s), this would be a broadcast address for that network

You want to ping the loopback address of your local host. Which two addresses could you type? ping 127.0.0.1 ping 0.0.0.0 ping ::1 trace 0.0.::1

ping 127.0.01 ping ::1