Module 8-11

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Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. What is the network address of Host-A?

10.5.4.0

IPv6 increases the IP address size from 32 bits to how many bits?

128

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

Which destination IPv4 address does a DHCPv4 client use to send the initial DHCP Discover packet when the client is looking for a DHCP server?

255.255.255.255

How large are IPv4 addresses?

32 bits

How many octets exist in an IPv4 address?

4

Which statement describes the relationship of a physical network and logical IPv4 addressed networks?

A physical network can connect multiple devices of different IPv4 logical networks.

What is one advantage of using DHCP to assign addresses to mobile devices?

Address leases are temporary and are returned to the pool when the device is turned off.

What are two features of IPv4 addresses?

An IPv4 addressing scheme is hierarchical. IPv4 is a logical addressing scheme

Which type of server dynamically assigns an IP address to a host?

DHCP

Which type of packet is sent by a DHCP server after receiving a DHCP Discover message?

DHCP Offer

Which message does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?

DHCP REQUEST

A host PC is attempting to lease an address through DHCP. What message is sent by the server to let the client know it is able to use the provided IP information?

DHCP pack

A PC is configured with both an IPv4 and IPv6 address on the same network adapter. What IPv4 and IPv6 coexistence strategy is implemented on the PC?

Dual stack

Which of the following techniques use native IPv6 connectivity?

Dual stack

What criterion must be followed in the design of an IPv4 addressing scheme for end devices?

Each IP address must be unique within the local network.

Which letter represents the hexadecimal value of the decimal number 15?

F

True or False: 4 out of 5 RIRs no longer have enough IPv4 addresses to allocate to customers on a regular basis.

False

Which two statements are correct about IPv4 and IPv6 addresses?

IPv6 addresses are represented by hexadecimal numbers. IPv4 addresses are 32 bits in length.

Which two reasons generally make DHCP the preferred method of assigning IP addresses to hosts on large networks?

It eliminates most address configuration errors. It reduces the burden on network support staff.

Which technology enables devices in an IPv6-only network to communicate with devices in an IPv4-only network?

NAT64

Which two statements are correct about private IPv4 addresses?

Private IPv4 addresses are assigned to devices within an organization's intranet (internal network). Any organization (home, school, office, company) can use the 10.0.0.0/8 address.

Which organization or group of organizations receives IP addresses from IANA and is responsible for allocating these addresses to ISPs and some organizations?

RIRs

Which devices will not forward an IPv4 broadcast packet by default?

Router

Which three statements describe a DHCP Discover message?

The message comes from a client seeking an IP address. All hosts receive the message, but only a DHCP server replies. The destination IP address is 255.255.255.255.

Who is responsible for statically assigning IP addressing information?

The network administrator

Which two statements are correct about public IPv4 addresses?

To access a device over the internet, the destination IPv4 address must be a public address. Public IPv4 address exhaustion is a reason why there are private Ipv4 addresses and why organizations are transitioning to IPv6.

Which statement is true about DHCP operation?

When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the networK.

What does a double colon (::) represent in an IPv6 address notation?

a continuous string of one or more hextets that contain only zeros

Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?

broadcast DHCPREQUEST

What is the most important motivating factor for moving to IPv6?

depletion of IPv4 addresses

If more than one DHCP server is available on the local network, in which order will DHCP messages be sent between a host and a DHCP server?

discover, offer, request, acknowledgment

What are two reasons a network administrator might want to create subnets?

improves network performance easier to implement security policies

What is the role of IANA?

managing the allocation of IP addresses and domain names

What is an advantage of using IPv6 ?

more addresses for networks and hosts

What are two methods that can be used to shorten the IPv6 address notation?

omit all leading zeros from all hextets in the address use of a double colon (::) to represent a string of all zero hextets

Which network device can serve as a boundary to divide a Layer 2 broadcast domain?

router

Which two situations are the result of excessive broadcast traffic?

slow network operations slow device operations

When IPv4 is configured for a computer on a network, what does the subnet mask identify?

the part of the IP address that identifies the network

What is the purpose of the subnet mask in conjunction with an IP address?

to determine the subnet to which the host belongs

What is one reason for subnetting an IP network?

to reduce the scope of broadcast flooding

What was the reason for the creation and implementation of IPv6?

to relieve IPv4 address depletion

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

tunneling

169.254.100.88. What could cause a computer to get such an IP address?

unreachable DHCP server


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