Networking Questions: IP Addressing

Match the subnetwork (192.168.1.96/27) to a host address that would be included within the subnetwork.

192.168.1.121

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?

255.255.255.128

Which subnet mask would be used if 5 host bits are available?

255.255.255.224

You receive a response that includes a code of 0 for IPv6. What does this code represent?

No route to destination

You receive a response that includes a code of 3 for IPv4. What does this code represent?

Port unreachable

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

Match the subnetwork (192.168.1.32/27) to a host address that would be included within the subnetwork.

192.168.1.48

You receive a response that includes a code of 0 for IPv4. What does this code represent?

Net unreachable

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

directed broadcast

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

/27

Consider the following range of addresses: 2001:0DB8:BC15:00A0:0000:: 2001:0DB8:BC15:00A1:0000:: 2001:0DB8:BC15:00A2:0000:: ... 2001:0DB8:BC15:00AF:0000:: The prefix-length for the range of addresses is:

/60

What are the ranges of private IPv4 addresses?

10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255

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

10.0.0.0/8 172.16.0.0/12 192.168.0.0/16

TEST-NET addresses belong to the range:

192.0.2.0/24

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

Match the subnetwork (192.168.1.64/27) to a host address that would be included within the subnetwork.

192.168.1.68

global unicast example (IPv6)

2001:DB8::BAF:3F57:FE94

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

2001:DB8:BC15:A

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

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

FE80::/10

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

ICMP

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

ICMPv6

You receive a response that includes a code of 4 for IPv6. What does this code represent?

Port unreachable

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

a specially defined group of hosts

What type of IPv6 address is FE80::1?

link-local

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

one specific host

What source IP address does a router use by default when the traceroute command is issued?

the IP address of the outbound 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

What is the usable number of host IP addresses on a network that has a /26 mask?

62

You receive a response that includes a code of 1 for IPv6. What does this code represent?

Communication with the destination is administratively prohibited (e.g., firewall)

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

FE80::1:4545:6578:ABC1

all node multicast example (IPv6)

FF02::1

solicited-node multicast example (IPv6)

FF02::1:FFAE:F85F

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

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

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

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

65536

loopback example (IPv6)

::1

You receive a response that includes a code of 2 for IPv4. What does this code represent?

Protocol unreachable

Refer to the exhibit. An administrator is trying to troubleshoot connectivity between PC1 and PC2 and uses the tracert command from PC1 to do it. Based on the displayed output, where should the administrator begin troubleshooting?

R1

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

SLAAC

Tunneling

The IPv6 packet is transported inside an IPv4 packet.

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

1022

Link-Local addresses are assigned automatically by the OS environment and are located in the block:

169.254.0.0/16

Refer to the exhibit. 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

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

192.168.1.64/26

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

Which of these addresses is the shortest abbreviation for the IP address: 3FFE:1044:0000:0000:00AB:0000:0000:0057?

3FFE:1044:0:0:AB::57

How many host addresses are available on the 192.168.10.128/26 network?

62

You receive a response that includes a code of 2 for IPv6. What does this code represent?

Beyond scope of the source address

Translation

IPv6 packets are converted into IPv4 packets and vice versa

Dual-stack

The IPv4 packets and IPv6 packets coexist in the same network.

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 device with the IP address 209.165.201.10. The administrator sends a request for the IP address for the end device in school B and the response is 192.168.25.10. Neither school is using a VPN. The administrator knows immediately that this IP will not work. Why?

This is a private IP address.

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

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

all hosts in the same subnet

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

anycast

The addresses in the block 240.0.0.0 to 255.255.255.254,

are reserved as experimental addresses.

What are two types of IPv6 unicast addresses?

loopback; link-local

A technician uses the ping 127.0.0.1 command. What is the technician testing?

the TCP/IP stack on a network host

A user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?

when the value of the Hop Limit field reaches zero