CCNA

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Author:
twanaknapp
ID:
211807
Filename:
CCNA
Updated:
2013-04-06 21:44:59
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CCNA
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Description:
CCNA
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  1. A user is unable to connect to the Internet.  Based on the layered approach for troubleshooting & begginging with the lowest layer, place these procedures in order.

    Verify URL
    Verify NIC operation
    Verify IP configuration
    Verify Ethernet connection
    • 1. Verify Ethernet connection (Layer 1)
    • 2. Verify NIC operation (Layer 2)
    • 3. Verify IP configuration (Layer 3)
    • 4. Verify URL (Layer 7)
  2. Which two Ethernet fiber-optic modes support distances of greater than 550 meters?

    A. 1000BASE-LX
    B. 100BASE-FX
    C. 1000BASE-CX
    D. 1000BASE-ZX
    E. 1000BASE-SX
    • 1000BASE-LX
    • 1000BASE-ZX
  3. Which statement about vlan operation on Cisco catalyst switches is true?

    A. Unknown unicast frames are retransmitted only to the ports that belong to the same vlan.
    B. Ports between switches should be configured in access mode so that vlans can span across the ports.
    C. When a packet is received from an 802.1Q trunk, the vlan id can be determined from the source MAC address table.
    D. Broadcast & Multicast frames are retransmitted to ports that are configured on different vlans.
    Unknown unicast frames are retransmitted only to the ports that belong to the same vlan.

    • Explanation: 
    • When the switch receives a frame with the destination as a unicast, and the destination address is not in the address table, it forwards the frame on all ports in the same VLAN, except the port on which the frame was received.

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