chp 4 switched networks Flashcards
1
Q
converged networks
A
- multiple types of traffic
- only one network to manage
- integrates it management
- saves money, resources
2
Q
borderless networks
A
- allows anyone to connect
- anywhere
- anytime
- any device
- securely
- reliably
- seamlessly
3
Q
borderless network principles
A
- hierarchical
- modular
- resilient
- flexible
4
Q
converged network layers
A
- access
- distribution
- core
5
Q
advantages of switched networks
A
- more flexible
- more traffic management
- supports quality of service
- additional security
- wireless
- ip telephone
- mobility services
6
Q
business considerations when purchasing a switch
A
- cost
- port density
- port speed
- form factor
- power
- reliability
- frame buffers
- scalability
7
Q
switch form factors
A
- fixed configuration
- stackable configuration
- modular platform
8
Q
multilayer switching
A
- deployed in core and distribution layers
- can build routing table
- supports routing protocols
- forwards ip packets
- supports multiple switch virtual interfaces (svi)
9
Q
switch mac address table
A
- dynamically populated
- uses content addressable memory (cam)
- high speed searching
- mac address table data is used to forward frames
- incoming frames that do not match mac address table are flooded to all ports except the one it came from
10
Q
switch forwarding methods
A
- store and forward
- cut through
11
Q
store and forward
A
- receives entire frame
- computes cyclic redundancy check (crc)
- looks up destination
- frame is forwarded
- slower
- more reliable
12
Q
cut through
A
- forwards frame before it is fully received
- frame is forwarded as soon as the switch knows the destination address
- faster
- less reliable
13
Q
collision domain
A
-segment where devices compete to communicate
14
Q
half duplex
A
- devices can only send or receive
- creates collision domain
15
Q
full duplex
A
- devices can send and receive at the same time
- no collision domain
