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Trainig for CCNA 640-802

December 13, 2010 by Igor Drobot Leave a Comment

Q: Which three application layer protocols use TCP? (Choose three.)
A: SMTP
A: FTP
SNMP
A: HTTP
TFTP
DHCP

Q: Which two application layer protocols use the UDP protocol? (Choose two.)
Telnet
A: SNMP
SMTP
SQL

A: TFTP

Q: What are two functions that occur at the Internet layer of the TCP/IP model? (Choose two.)
establishment of logical connections between source and destination hosts
A: end-to-end flow control
determination of best paths through the network
definition of the procedures used to interface with the network hardware

A: packet switching
Layer 5 and Layer 6 OSI model functions

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Filed Under: Cisco Tagged With: CCNA 640-820, Cisco

Trainig for CCNA 640-802

December 5, 2010 by Igor Drobot Leave a Comment

Q: What is the purpose of the Spanning Tree Protocol (STP)?
A: prevents Layer 2 loops

Q: What creates a loop-free path through a switch network?
A: Spanning Tree Protocol

Q: Which statement is true regarding states of the IEEE 802.1D Spanning Tree Protocol?
A: Ports listen and learn before going into the forwarding state.

Q: Which industry-wide specification was developed to decrease the time that is needed to move to the forwarding state by switch ports that are operating in a redundantly switched topology?
A: RSTP


Q: Refer to the exhibit. Which switch will be elected the root bridge and which switch will place a port in blocking mode?
A: SW4 will get a port blocked.
A: SW3 will become the root bridge.

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Filed Under: Cisco Tagged With: CCNA 640-820, Cisco