Fundamentals of Netoworking FINAL v.7
When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?
store-and-forward
What is one main characteristic of the data link layer?
-It generates the electrical or optical signals that represent the 1 and 0 on the media. -It converts a stream of data bits into a predefined code. +It shields the upper layer protocol from being aware of the physical medium to be used in the communication. -It accepts Layer 3 packets and decides the path by which to forward the packet to a remote network.
What are three characteristics of the CSMA/CD process? (Choose three.)
-The device with the electronic token is the only one that can transmit after a collision. +A device listens and waits until the media is not busy before transmitting. +After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. +All of the devices on a segment see data that passes on the network medium. -A jam signal indicates that the collision has cleared and the media is not busy. -Devices can be configured with a higher transmission priority.
12. What are two functions that are provided by the network layer? (Choose two.)
-directing data packets to destination hosts on other networks -providing end devices with a unique network identifier
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
-error detection -frame delimiting +accessing the media +data encapsulation -logical addressing
What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.)
1. Neighbor solicitations 2. Neighbor advertisement
What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?
1C6F:65FF:FEC2:BDF8
An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space?
256 (why?)
Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?
BB:BB:BB:BB:BB:BB (in this case Layer 2 frame header will contain source and destination MAC)
Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved?
Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
FE80::/10
Which two commands can be used on a Windows host to display the routing table? (Choose two.)
netstat -r route print