ITN Chapter 7

Which three IP addresses are private ? (Choose three.) 72.16.4.4 224.6.6.6 172.32.5.2 192.168.5.5 10.1.1.1 192.167.10.10

172.16.4.4 192.168.5.5 10.1.1.1 The private IP addresses are within these three ranges:10.0.0.0 - 10.255.255.255172.16.0.0 - 172.31.255.255192.168.0.0 - 192.168.255.255

A message is sent to all hosts on a remote network. Which type of message is it? unicast limited broadcast directed broadcast multicast

directed broadcast A directed broadcast is a message sent to all hosts on a specific network. It is useful for sending a broadcast to all hosts on a nonlocal network. A multicast message is a message sent to a selected group of hosts that are part of a subscribing multicast group. A limited broadcast is used for a communication that is limited to the hosts on the local network. A unicast message is a message sent from one host to another.

What type of address is automatically assigned to an interface when IPv6 is enabled on that interface? link-local unique local global unicast loopback

link-local When IPv6 is enabled on any interface, that interface will automatically generate an IPv6 link-local address.

What are two types of IPv6 unicast addresses? (Choose two.) anycast loopback broadcast multicast link-local

loopback link-local Multicast, anycast, and unicast are types of IPv6 addresses. There is no broadcast address in IPv6. Loopback and link-local are specific types of unicast addresses.

Which two parts are components of an IPv4 address? (Choose two.) logical portion physical portion network portion host portion subnet portion broadcast portion

network portion host portion An IPv4 address is divided into two parts: a network portion - to identify the specific network on which a host resides, and a host portion - to identify specific hosts on a network. A subnet mask is used to identify the length of each portion.

How many bits are in an IPv4 address? 32 256 64 128

32 An IPv4 address is comprised of 4 octets of binary digits, each containing 8 bits, resulting in a 32-bit address.

Which of these addresses is the shortest abbreviation for the IP address:3FFE:1044:0000:0000:00AB:0000:0000:0057? 3FFE:1044:0000:0000:00AB::57 3FFE:1044:0000:0000:00AB::0057 3FFE:1044:0:0:00AB::0057 3FFE:1044::AB::57 3FFE:1044:0:0:AB::57 3FFE:1044::00AB::0057

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

What field content is used by ICMPv6 to determine that a packet has expired? Hop Limit field CRC field TTL field Time Exceeded field

Hop Limit field ICMPv6 sends a Time Exceeded message if the router cannot forward an IPv6 packet because the packet expired. The router uses a hop limit field to determine if the packet has expired, and does not have a TTL field.

Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host? ICMPv6 DHCPv6 UDP ARPv6

ICMPv6 SLAAC uses ICMPv6 messages when dynamically assigning an IPv6 address to a host. DHCPv6 is an alternate method of assigning an IPv6 addresses to a host. ARPv6 does not exist. Neighbor Discovery Protocol (NDP) provides the functionality of ARP for IPv6 networks. UDP is the transport layer protocol used by DHCPv6.

What is indicated by a successful ping to the ::1 IPv6 address? The default gateway address is correctly configured. IP is properly installed on the host. The host is cabled properly. All hosts on the local link are available. The link-local address is correctly configured.

IP is properly installed on the host. The IPv6 address ::1 is the loopback address. A successful ping to this address means that the TCP/IP stack is correctly installed. It does not mean that any addresses are correctly configured.

What are three characteristics of multicast transmission? (Choose three.) Multicast transmission can be used by routers to exchange routing information. Computers use multicast transmission to request IPv4 addresses. Multicast messages map lower layer addresses to upper layer addresses. A single packet can be sent to a group of hosts. The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network.

Multicast transmission can be used by routers to exchange routing information. A single packet can be sent to a group of hosts. The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network. Broadcast messages consist of single packets that are sent to all hosts on a network segment. These types of messages are used to request IPv4 addresses, and map upper layer addresses to lower layer addresses. A multicast transmission is a single packet sent to a group of hosts and is used by routing protocols, such as OSPF and RIPv2, to exchange routes. The address range 224.0.0.0 to 224.0.0.255 is reserved for link-local addresses to reach multicast groups on a local network.

Which two things can be determined by using the ping command? (Choose two.) the number of routers between the source and destination device the average time it takes each router in the path between source and destination to respond the destination device is reachable through the network the IP address of the router nearest the destination device the average time it takes a packet to reach the destination and for the response to return to the source

the destination device is reachable through the network the average time it takes a packet to reach the destination and for the response to return to the source A ping command provides feedback on the time between when an echo request was sent to a remote host and when the echo reply was received. This can be a measure of network performance. A successful ping also indicates that the destination host was reachable through the network.

What is the purpose of ICMP messages? to provide feedback of IP packet transmissions to ensure the delivery of an IP packet to inform routers about network topology changes to monitor the process of a domain name to IP address resolution

to provide feedback of IP packet transmissions The purpose of ICMP messages is to provide feedback about issues that are related to the processing of IP packets.

Which two IPv4 to IPv6 transition techniques manage the interconnection of IPv6 domains? (Choose two.) tunneling encapsulation dual stack trunking multiplexing

tunneling dual stack There are three techniques to allow IPv4 and IPv6 to co-exist on a network. Dual stack allows IPv4 and IPv6 to coexist on the same network segment. Dual stack devices run both IPv4 and IPv6 protocol stacks simultaneously. Tunneling is a method of transporting an IPv6 packet over an IPv4 network. The IPv6 packet is encapsulated inside an IPv4 packet, similar to other types of data. Network Address Translation 64 (NAT64) allows IPv6-enabled devices to communicate with IPv4-enabled devices using a translation technique similar to NAT for IPv4.

A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet? when the router receives an ICMP Time Exceeded message when the value in the TTL field reaches zero when the values of both the Echo Request and Echo Reply messages reach zero when the host responds with an ICMP Echo Reply message when the RTT value reaches zero

when the value in the TTL field reaches zero When a router receives a traceroute packet, the value in the TTL field is decremented by 1. When the value in the field reaches zero, the receiving router will not forward the packet, and will send an ICMP Time Exceeded message back to the source.