CCNA 7

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Fill in the blank. The shortest compressed format of the IPv6 address 2001:0DB8:0000:1470:0000:0000:0000:0200 is _______________

2001:DB8:0:1470::200

Match the IPv6 address with the IPv6 address type. (Not all options are used.)

FF02::1:FFAE:F85F is a solicited node multicast address. 2001:DB8::BAF:3F57:FE94 is a global unicast address. FF02::1 is the all node multicast address. Packets sent to this address will be received by all IPv6 hosts on the local link. ::1 is the IPv6 loopback address.

The network portion of the address 172.16.30.5/16 is

172.16 A prefix of /16 means that 16 bits are used for the network part of the address. The network portion of the address is therefore 172.16.

a single binary digit, represented by a 0 or a 1

bit

one section of an IP address, consisting of a group of 8 bits

octet

the number of bits set to 1 in a subnet mask

prefix length

an IP address used internally and not routed on the Internet

private address

the IP address of a single host on a network

unicast address

an IP address that can be routed on the Internet

public address

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

/27 The binary format for 255.255.255.224 is 11111111.11111111.11111111.11100000. The prefix length is the number of consecutive 1s in the subnet mask. Therefore, the prefix length is /27.

Fill in the blank. The 8-digit binary value of the last octet of the IPv4 address 172.17.10.7 is

00000111

The last host address on the 10.15.25.0/24 network is

10.15.25.254 The host portion of the last host address will contain all 1 bits with a 0 bit for the lowest order or rightmost bit. This address is always one less than the broadcast address. The range of addresses for the network 10.15.25.0/24 is 10.15.25.0 (network address) through 10.15.25.255 (broadcast address). So the last host address for this network is 10.15.25.254.

a binary process used to determine the network address of a host address by using the host address subnet mask

ANDing

an IP address that is required for every IPv6-enabled network interface and that allows a device to communicate with other IPv6-enabled devices on the same link

IPv6 link-local address

Match each description with an appropriate IP address. (Not all options are used.)

Link-Local addresses are assigned automatically by the OS and are located in the block 169.254.0.0/16. The private address ranges are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. The addresses in the block 240.0.0.0 to 255.255.255.254 are reserved as experimental addresses. Loopback addresses belong to the block 127.0.0.0/8.

In which alternative to DHCPv6 does a router dynamically provide IPv6 configuration information to hosts?

SLAAC Stateless Address Autoconfiguration (SLAAC) can be used as an alternative to DHCPv6.

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 This address is one of the assigned IPv6 multicast addresses. Packets addressed to FF02::1 are for all IPv6 enabled devices on the link or network. FF02::2 is for all IPv6 routers that exist on the network.

a numbering system consisting of the digits 0 and 1, used by computers to perform operations

binary

a dotted-decimal number that represents all hosts in an IP network

broadcast address

specific ranges of IP addresses that make up classes of addresses in which the number of available network and host addresses are defined

classful addressing

IP addressing standards created in 1993 that allow address allocation based on prefix length rather than predefined class ranges

classless addressing

a base-sixteen numbering system that uses numerals 0 through 9 and letters A through F to represent binary numbers in more condensed form

hexadecimal

any IP address in an IP network that can be assigned to an interface

host address

Which type of IPv6 address is not routable and used only for communication on a single subnet?

link-local address Link-local addresses have relevance only on the local link. Routers will not forward packets that include a link-local address as either the source or destination address.

an IP address representing a selected group of hosts

multicast address

the number of bits set to 1 in a subnet mask prefix length a dotted-decimal number that represents a unique IP network

network address

a utility that sends a series of echo requests from one IP host to another IP host and that processes the echo reply messages to test connectivity between the devices

ping

determining a digit value based on the digit position, used in converting from one numbering system to another

positional notation

a continuous sequence of 1 bits followed by a continuous sequence of 0 bits, used to determine the network portion of an IP address

subnet mask

A user who is unable to connect to the file server contacts the help desk. The helpdesk technician asks the user to ping the IP address of the default gateway that is configured on the workstation. What is the purpose for this ping command?

to test that the host has the capability to reach hosts on other networks

a utility that generates details about the route traveled by data sent between two devices

traceroute

Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?

tunneling


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