CCN1 Chapters 11-13 Exam

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

/27

What three blocks of addresses are defined by RFC 1918 for private network use? (Choose three.)

10.0.0.0/8 172.16.0.0/12 192.168.0.0/16

Refer to the exhibit. Considering the addresses already used and having to remain within the 10.16.10.0/24 network range, which subnet address could be assigned to the network containing 25 hosts?

10.16.10.64/27

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

1022

Refer to the exhibit. A company is deploying an IPv6 addressing scheme for its network. The company design document indicates that the subnet portion of the IPv6 addresses is used for the new hierarchical network design, with the site subsection to represent multiple geographical sites of the company, the sub-site section to represent multiple campuses at each site, and the 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

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

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? (Choose two.)

192.168.1.64/27 FE80::1:4545:6578:ABC1

Which three addresses are valid public addresses? (Choose three.)

198.133.219.17 128.107.12.117 64.104.78.227

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What are the three IPv6 addresses displayed when the route from PC1 to PC2 is traced? (Choose three.)

2001:DB8:1:1::1 2001:DB8:1:2::1 2001:DB8:1:3::2

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

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

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 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

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

62

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

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

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

SLAAC

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

The IP address of the outbound interface

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

a specially defined group of hosts

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?

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

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

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

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

What type of IPv6 address is FE80::1?

link-local

What are two types of IPv6 unicast addresses? (Choose two.)

loopback link-local

A user issues a ping 10.10.14.67 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 fe80:65ab:dcc1::100 command and receives a response that includes a code of 4. What does this code represent?

port 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 192.168.1.64subnet mask 255.255.255.192

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

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

the TCP/IP stack on a network host

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

three

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 purpose of ICMP messages?

to provide feedback of IP packet transmissions

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