Summary: Ccnp And Ccie Enterprise Core Official Cert Guide | 1-58714-523-5 | Bradley Edgeworth, et al
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Read the summary and the most important questions on CCNP and CCIE Enterprise Core Official Cert Guide | 1-58714-523-5 | Bradley Edgeworth, Ramiro Garza Rios, Jason Gooley, David Hucaby
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1 Packet Forwarding
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1.1 Network Device Communication
This is a preview. There are 12 more flashcards available for chapter 1.1
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What does the acronym MAC, used by the Layer 2 Ethernet protocol for addressing, stand for.
MediaAccess Control -
A MAC address is notated in hexadecimal, of how many bits and octets does it consist?
It consists of 48 bits, divided in 6 octets. -
CSMA/CD is used by Ethernet devices to ensure only one device talks at a time on a collision domain. What does CSMA/CD stand for?
Carrier Sense Multiple Access/Collision Detect -
What is the flooding of a packet known as when a switch doesn't know the destination MAC address
Unknown Unicast Flooding. -
All devices in the same Layer 2 segment are considered to be in the same?
Broadcast Domain -
VLANs are defined in the IEEE 802.1Q standard, which states 32 bits are added to the packet header. Which 4 fields are added in those 32 bits?
TPID - Tag Protocol Identifier, 16 bit, Set to 0x8100 to identify as 802.1Q
PCP - Priority Code Point, 3bit, Class of Service, Used for QoS
DEI - Drop Eligible Indicator, 1 bit, Indicates if packet can be dropped
VLAN ID, 12 bit, Specifies the associated VLAN. -
Cisco switches have some default uses for VLAN 0, VLAN 1 and VLAN 1002-1005. Which ones?
VLAN 0 - Reserverd for 802.1P traffic
VLAN 1 - default VLAN
VLAN 1002-1005 - Reserved -
802.1Q tags are not included on packets received on an access port. How many VLANs can an Access Port be Assigned to?
Only oneVLAN -
A Trunk port can receive and send packets with 802.1Q headers and removes them after receiving them. Can a Trunk port be assigned to multiple VLANs?
Yes -
What is the command Switchport Trunk Allowed VLAN used for?
To addVLANS to theswitchport configuration which are allowed to traverse theswitchport .
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Advanced STP Tuning - STP Topology Tuning
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Advanced STP Tuning - Additional STP Protection Mechanisms
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VLAN Trunks and EtherChannel Bundles - EtherChannel Bundle
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