Checkpoint Exam: IP Addressing

A high school in New York (school A) is using videoconferencing technology to establish student interactions with another high school (school B) in Russia. The videoconferencing is conducted between two end devices through the Internet. The network administrator of School A configures the end devices with the IP address 209.165.201.10. The administrator sends a request for the IP address fro the end device in school B and the response is 192.168.25.10. Neither school us using a VPN. The administrator knows immediately that this IP will not work. Why?

This is a private IP address

How many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?

three

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

10.0.0./8

172.16.0.0/12

192.168.0.0/16

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

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

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

1022

A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.25.128

A message is sent to all hosts on a remote network. Which type of message is it?

directed broadcast

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?

192.168.1.64/27

192.168.1.96/28

What is the prefix for the host address 2001:DB8:BC15:A:12AB::1/64?

2001:DB8:BC15:A

Which IPv6 prefix is reserved for communication between devices on the same link?

FE80::/10

Match each method with its description: The IPv4 packets and IPv6 packets coexist in the same network.

dual-stack

Match each method with its description. IPv6 packets are converted into Ipv4 packets, and vice versa. 

translation

Match each method with its description. The IPv6 packet is transported inside an IPv4 packet.

tunneling

What type of IPv6 address is FE80::1?

link-local

Which type of IPv6 address refers to any unicast address that is assigned to multiple hosts?

anycast

Given IPv6 address prefix 2001:db8::/48, what will be the last subnet that is created if the subnet prefix is changed to /52?

2001:db8:0:f000::/52

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 service provider provides dynamic global IPv6 addressing to end device without using a server that keeps a record of all available IPv6 addresses?

SLAAC

Which address is a valid IPv6 link-local unicast address?

FE80::1:4545:6578:ABC1

What are two types of IPv6 unicast addresses?

link-local

loopback

Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?

ICMPv6

What is the purpose of ICMP messages?

to provide feedback of IP packet transmissions

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

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

ICMP

What is the prefix length notation for the subnet mask 255.255.255.224?

/27

Match each description with an appropriate IP address. A TEST-NET address

192.0.2.123

Match each description with an appropriate IP address. A private address

172.19.20.5

Match each description with an appropriate IP address. A link-local address

169.254.1.5

Match each description with an appropriate IP address. An experimental address

240.2.6.255

Match each description with an appropriate IP address. A loopback address

127.0.0.1

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

A host is transmitting a multicast. Which host or hosts will receive it?

A specially defined group of hosts.

What is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?

fe80::220:b3f:f0e0:29

A user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 3. What does this code represent?

communication with the destination administratively prohibited.