Network Essentials: Modules 6-10

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A DHCP-enabled client PC has just booted. During which two steps will the client PC use broadcast messages when communicating with a DHCP server?

DHCPREQUEST, DHCPDISCOVER

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

broadcast DHCPREQUEST

which info is used by routers to forward a data packet toward its destination

destination IP address

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

Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?

dynamic allocation

which term refers to the process of placing one message format inside another message format

encapsulation

which three fields are found in an 802.3 ethernet frame

frame check sequence, source physical address, destination physical address

what is the purpose of the core layer in the cisco hierarchical network design model

high-speed backbone switching

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

tunneling

which ip address type is intended for a specific host

unicast

Which statement is true about DHCP operation?​

when a device that is configures to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network

which address prefix range is reserved for ipv4 multicast

224.0.0.0 - 239.255.255.255

which is NOT a private IPv4 address

224.6.6.6

how many usable hosts are available given a class c ip address with the default subnet mask

254

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 much data can be encapsulated into a normal sized ethernet frame before it is sent over the network

46 to 1500 bytes

Which destination address is used in an ARP request frame

FFFF.FFFF.FFFF

A router receives an incoming packet and determines that the destination host is located on a LAN directly attached to one of the router interfaces. Which destination address will the router use to encapsulate the Ethernet frame when forwarding the packet?

MAC address of the destination host

which method of ipv6 prefix assignment relies on the prefix contained in RA messages

SLAAC

How is a frame sent from PCA forwarded to PCC if the MAC address table on SW1 is empty

SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch

A router receives a packet from the Gigabit 0/0 interface and determines that the packet needs to be forwarded out the Gigabit 0/1 interface. What will the router do next?

create a new layer 2 ethernet frame to be sent to the destination

what type of route is indicated by the code C in an IPv4 routing table on a cisco router?

directly connected route

which network technology allows devices to communicate using both ipv4 and ipv6 addressing at the same time

dual stack

which two devices would commonly be found at the access layer of the hierarchical enterprise LAN design model?

layer 2 switch, access point

What type of IPv6 address is FE80::1?

link-local

what is an advantage of using 1pv6

more addresses for networks and hosts

which portion of the network layer address does a router use to forward packets

network portion

Typically, which network device would be used to perform NAT for a corporate environment?

router

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

router

what role does a router play on a network

selecting the path to destination networks

what info does an ethernet switch examine and use to build its address table

source MAC address

which network device has the primary function to send data to a specific destination based on the info found in the MAC address table

switch

during the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly routing table entry

switch the packet to the directly connected interface

Which address should be configures as the default gateway address of a client device

the IPv4 address of the router interface that is connected to the same LAN

which characteristic describes the default gateway of a host computer

the logical address of the router interface on the same network as the host computer

when ipv4 is configures for a computer on a network, what does the subnet mask identify

the part of the ip address that identifies the network

what will a router do if it cannot determine where to forward an incoming packet?

the router will drop it

what is NOT a characteristic of a multicast transmission

the source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255

why does a layer 3 device perform the ANDing process on a destination IP address and subnet mask

to identify the network address of the destination network

what is the purpose of ARP in an IPv4 network

to obtain a specific MAC address when an IP address is known


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