Correct Answer: C,F
Explanation/Reference:
Explanation:
Choosing the Right Distribution Method
Which of the three different image-distribution methods discussed so far is the best for a customer deployment? Each method has advantages and disadvantages, and they are summarized in Table
1.
Table 1. Summary of Distribution Models
Peer Firmware Sharing
Load Server
Traditional TFTP
Advantages
* Hierarchy is automatic
* One download per phone model on asubnet
* Uses TCP
* Fails back to TFTP
* Speeds up LAN upgrades
* Reduces TFTP CPU load during upgrade
* Has same download time as LAN image distribution
* Distributes TFTP load over multiple TFTPservers
* Proven distribution
* Default behavior
Disadvantages
* Must be enabled on each phone
* Hierarchy is formed for each phone model
* Hierarchy is limited to subnet
* IP must be set on each phone
*Administrator must manually file copy to load server
* No failback to TFTP on error
* More prone to user error
* High-bandwidth requirements
* Multiple requests for same file
* High CPU usage on TFTP server
Reference:http://www.cisco.com/en/US/prod/collateral/voicesw/ps6882/ps6884/white_paper_c11-
583891.pdf