Modules 8-10 Exam

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Which IPv4 address can a host use to ping the loopback interface?

127.0.0.1

What two protocols are used to determine the MAC address of a known destination device IP address (IPv4 and IPv6)?

ARP - Address Resolution Protocol ND - Neighbor Discovery

Which field in an IPv4 packet header will typically stay the same during its transmission?

Destination Address

When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?

Destination IP address

Which information is used by routers to forward a data packet toward its destination?

Destination IP address

Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped?

Hop Limit

Which statement accurately describes a characteristic of IPv4?

IPv4 has a 32-bit address space

Which characteristic describes an IPv6 enhancement over IPv4?​

IPv6 header is simpler than IPv4, which improves packet handling

What destination MAC address would be included in a frame sent from a source device to a destination device on a remote local network?

The MAC Address of the local router interface

How does the network layer use the MTU value?

The MTU is passed to the network layer by the data link layer. The data link layer indicates to the network layer the MTU for the medium that is being used. The network layer uses that information to determine how large the packet can be when it is forwarded. When packets are received on one medium and forwarded on a medium with a smaller MTU, the network layer device can fragment the packet to accommodate the smaller size.

What information is added during encapsulation at OSI Layer 3?

source and destination IP address

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

Which command can be used on a Windows host to display the routing table?

netstat -r

A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?

packet will be sent directly to the destination

What destination MAC address would be included in a frame sent from a source device to a destination device on the same local network?

the MAC address of the destination device

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

to relieve IPv4 depletion

When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?

upper-layer connection-orientation protocols keep track of the data received and can request transmission from the upper-level protocols on the hosting sending host


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