2long Cisco

From: http://cisco-academy-programs.blogspot.com
1. Which two conditions have favored adoption of 802.11g over 802.11a? (Choose two.)
• 802.11a suffers from a shorter range than 802.11g.
• The 2.4 GHz frequency band is not as crowded as the 5 GHz band.
• 802.11a is more susceptible to RF interference from common commercial items.
• 802.11a uses a more expensive modulation technique than 802.11g.
• 802.11g is backward compatible with 802.11b, but 802.11a is not. 
 
2. Which two statem...

From: http://cisco-academy-programs.blogspot.com
1. Refer to the exhibit. Which three statements describe the network design shown in the exhibit? (Choose three.)  

• This design will not scale easily.
• The router merges the VLANs into a single broadcast domain.
• This design uses more switch and router ports than are necessary.
• This design exceeds the maximum number of VLANs that can be attached to a switch.
• This design requires the use of the ISL or 802.1q protocol on the links...

From: http://cisco-academy-programs.blogspot.com
1. Which two statements are true about the default operation of STP in a Layer 2 switched environment that has redundant connections between switches? (Choose two.)
• The root switch is the switch with the highest speed ports.
• Decisions on which port to block when two ports have equal cost depend on the port priority and identity.
• All trunking ports are designated and not blocked.
• Root switches have all ports set as root ports. 
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From: http://cisco-academy-programs.blogspot.com
1. Refer to the exhibit. Switch1 is not participating in the VTP management process with the other switches shown in the exhibit. What are two possible reasons for this? (Choose two.)
• Switch2 is in transparent mode.
• Switch1 is in client mode.
• Switch1 is using VTP version 1 and Switch2 is using VTP version 2.
• Switch2 is in server mode.
• Switch1 is in a different management domain.
• Switch1 has no VLANs.

2. Refer to the exhib...

From: http://cisco-academy-programs.blogspot.com
1. What statement about the 802.1q trunking protocol is true?
• 802.1q is Cisco proprietary.
• 802.1q frames are mapped to VLANs by MAC address.
• 802.1q does NOT require the FCS of the original frame to be recalculated.
• 802.1q will not perform operations on frames that are forwarded out access ports. 
 
2. Which two statements describe the benefits of VLANs? (Choose two.)
• VLANs improve network performance by regulating flow contro...

From: http://cisco-academy-programs.blogspot.com

1. When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
• The hosts return to a listen-before-transmit mode.
• The hosts creating the collision have priority to send data.
• The hosts creating the collision retransmit the last 16 frames.
• The hosts extend their delay period to allow for rapid transmission.

2. Refer to the exhibit. The switch and workstation ...

From: http://cisco-academy-programs.blogspot.com

1. A network technician is asked to examine an existing switched network. Following this examination, the technician makes recommendations for adding new switches where needed and replacing existing equipment that hampers performance. The technician is given a budget and asked to proceed. Which two pieces of information would be helpful in determining necessary port density for new switches? (Choose two.)
• forwarding rate
• traffic flow ana...