ccna test 4

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

/27

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

198.133.219.17 128.107.12.117 64.104.78.227

global unicast address.

2001:DB8::BAF:3F57:FE94

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

IPv6 loopback address.

::1

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

FE80::1:4545:6578:ABC1

all node multicast address. Packets sent to this address will be received by all IPv6 hosts on the local link.

FF02::1

solicited node multicast address.

FF02::1:FFAE:F85F

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

ICMP

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

a specially defined group of hosts

Subnet 192.168.1.32/27

a valid host range from 192.168.1.33 - 192.168.1.62 with the broadcast address as 192.168.1.63

Subnet 192.168.1.64/27

a valid host range from 192.168.1.65 - 192.168.1.94 with the broadcast address as 192.168.1.95

What type of IPv6 address is FE80::1?

link-local

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

loopback link-local

a code of 0.

network unreachable

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

one specific host

a code of 4.

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 192.168.1.64 subnet mask 255.255.255.192

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

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

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

Which is the compressed format of the IPv6 address 2002:0420:00c4:1008:0025:0190:0000:0990?

2002:420:c4:1008:25:190::990

Which is the compressed format of the IPv6 address 2002:0042:0010:c400:0000:0000:0000:0909?

2002:42:10:c400::909

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

experimental addresses

240.0.0.0 to 255.255.255.254

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

SLAAC

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 code of 2.

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

Which is the compressed format of the IPv6 address fe80:09ea:0000:2200:0000:0000:0fe0:0290?

fe80:9ea:0:2200::fe0:290

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

fe80::220:b3f:f0e0:29

a code of 1

host unreachable

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

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

Which is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?

2001:db8::a0b0:8:1

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

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

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

private addresses ranges

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

Loopback addresses

127.0.0.0/8.

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

Link-Local addresses

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

TEST-NET addresses

192.0.2.0/24

Network B needs

192.168.0.0 /26, which yields 64 host addresses

Network A needs

192.168.0.128 /25, which yields 128 host addresses.

Network D needs

192.168.0.80/30, which yields 4 host addresses.

Network C needs

192.168.0.96 /27, which yields 32 host addresses.

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.)

192.168.1.64/27 192.168.1.96/28

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

FE80::/10

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

ICMPv6

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

Three methods allow IPv6 and IPv4 to co-exist. Match each method with its description. (Not all options are used.)

The term for the method that allows for the coexistence of the two types of packets on a single network is dual-stack. Tunneling allows for the IPv6 packet to be transported inside IPv4 packets. An IP packet can also be converted from version 6 to version 4 and vice versa. DHCP is a protocol that is used for allocating network parameters to hosts on an IP 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.

Subnet 192.168.1.96/27

a valid host range from 192.168.1.97 - 192.168.1.126 with the broadcast address as 192.168.1.127

a code of 3.

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