Modules 11 - 13: IP Addressing Exam

First prefix notation

/26

What three blocks of addresses are defined by RFC 1918 for private network use?

10.0.0.0/8 172.168.0.0/12 192.168.0.0/16

How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?

1022

A company is deploying IPv6 addressing scheme for its network. Company design document indicates that subnet portion of IPv6 addresses is used for new hierarchical network design, with suite subsection to represent multiple geographical sites of company, sub-site section to represent multiple campuses at each site, and subnet section to indicate each network segment separated by routers. With such a scheme, what is the maximum number of subnets achieved per sub-site ?

16

An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?

172.16.19.255

TEST-NET address

192.0.2.123 192.0.2.0/24

192.168.1.96/27

192.168.1.121

192.168.1.32/27

192.168.1.48

192.168.1.64/27

192.168.1.68

A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that?

192.168.1.96/28 192.168.1.64/27

First(broadcast) full subnet range

192.168.5.0-192.168.5.63

Last full subnet range

192.168.5.192 -192.168.5.255

Second(network) full subnet range

192.168.5.64-192.168.5.127

global unicast address

2001:DB8::BAF:3F57:FE94 SImilar to public IPv4 address Globally unique, internet-routable addresses Configured statically or assigned dynamically

Which is the compressed format of IPv6 address 2001:0db8:0000:0000:0ab8:0001:0000:1000?

2001:db8::ab8:1:0:1000

Experimental Addresses

240.0.0.0 to 255.255.255.254 240.2.6.255

subnet mask (decimal)

255.255.255.192

A network administrator has received IPv6 prefix 2001:DB8::/48 for subnetting. Assuming administrator does not subnet into interface ID portion of address space, how many subnets can administrator create from /48 prefix?

65536

Loopback

::1 127.0.0.1 Special addresses used by host to direct traffic to itself

Broadcast Address

Address that is used when it is required to reach all devices on IPv4 network 10.10.1.161/25

Host address

Addresses that can be assigned to device such as host computer, laptop, smart phone, web camera, printer, router, etc 192.168.100.161/25

Public address

Addresses which are globally routed between internal service provider (ISP) routers 192.0.3.15, 64.104.0.22, 209.165.201.30

What type of IPv6 unicast address is assigned to multiple hosts?

Anycast

private address

Assigned to devices within organization's intranet (internal network) 172.19.20.5 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16

node multicast group

FF02::1 Multicast group that all IPv6-enabled devices join

solicited node multicast

FF02::1:FFAE:F85F Similar to all nodes multicast address Mapped to special Ethernet multicast address Allows Ethernet NIC to filter frame by examining destination MAC address without sending it to IPv6 process to see if device is intended target of IPv6 packet

Which protocol is used by the traceroute command to send and receive echo-requests and echo-replies?

ICMP (Internet Control Message Protocol)

link-local

Known as Automatic Private IP addressing (APIPA) addresses or self-assigned addresses Used by windows DHCP cilent to self-configure in event that there are no DHCP servers available Can be used in peer-to-peer connection 169.254.1.5 169.254.0.0/16

What is used in EUI-64 process to create IPv6 interface ID on IPv6 enabled interface?

MAC address of IPv6 address interface

Which service provides dynamic global IPv6 addressing to end devices without using server that keeps record of available IPv6 addresses?

SLACC

Which ICMPv6 message is sent when IPv6 hop limit field of packet is decremented to zero and packet cannot be forwarded?

Time exceeded

What type of IPv6 address is FE80::1?

link-local

What are two types of IPv6 unicast addresses?

loopback link-local

User issues ping 198.133.219.8 command and receives response that includes code of 0. What does this code represent?

network unreachable

An administrator wants to create four subnetworks from the network address 192.168.1.0/24. What is the network address and subnet mask of the second useable subnet?

subnetwork 192.168.1.64 subnet mask 255.255.255.192

What is the purpose of ICMP messages?

to provide feedback of IP packet transmissions