Intro to Networking Final Pt. IV
Which subnet mask would be used if 5 host bits are available?
255.255.255.224
A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?
4
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
62
Which address is a valid IPv6 link-local unicast address?
FE80::1:4545:6578:ABC1
A host is transmitting a multicast. Which host or hosts will receive it?
a specially defined group of hosts
A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 3. What does this code represent?
address unreachable
An IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?
all IPv6 enabled devices on the local link or network
Which type of IPv6 address refers to any unicast address that is assigned to multiple hosts?
anycast
A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2. What does this code represent?
beyond scope of the source address
A message is sent to all hosts on a remote network. Which type of message is it?
directed broadcast
What type of IPv6 address is FE80::1?
link-local
What are two types of IPv6 unicast addresses?
-loopback -link-local
What is the prefix length notation for the subnet mask 255.255.255.224?
/27. The binary format for 255.255.255.224 is 11111111.11111111.11111111.11100000. The prefix length is the number of consecutive 1s in the subnet mask. Therefore, the prefix length is /27.
How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?
1022, A mask of 255.255.252.0 is equal to a prefix of /22. A /22 prefix provides 22 bits for the network portion and leaves 10 bits for the host portion. The 10 bits in the host portion will provide 1022 usable IP addresses (210 - 2 = 1022).
How many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?
3, Each network that is directly connected to an interface on a router requires its own subnet. The formula 2n, where n is the number of bits borrowed, is used to calculate the available number of subnets when borrowing a specific number of bits.
Which protocol is used by the traceroute command to send and receive echo-requests and echo-replies?
ICMP
Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?
SLAAC
What is the purpose of ICMP messages?
to provide feedback of IP packet transmissions
How many host addresses are available on the 192.168.10.128/26 network?
62
Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?
ICMPv6
A host is transmitting a broadcast. Which host or hosts will receive it?
all hosts in the same subnet
A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2 . What does this code represent?
beyond scope of the source address
A user issues a ping 192.135.250.103 command and receives a response that includes a code of 1. What does this code represent?
host unreachable
A user issues a ping 198.133.219.8 command and receives a response that includes a code of 0 . What does this code represent?
network unreachable
A host is transmitting a unicast. Which host or hosts will receive it
one specific host
A user issues a ping 2001:db8:3040:114::88 command and receives a response that includes a code of 4. What does this code represent?
port unreachable
What source IP address does a router use by default when the traceroute command is issued?
the IP address of the outbound interface
What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?
the MAC address of the IPv6 enabled interface
Which ICMPv6 message is sent when the IPv6 hop limit field of a packet is decremented to zero and the packet cannot be forwarded?
time exceeded
