Download e-book for kindle: 640-801 Cisco CCNA Cisco Certified Network Associate by Wendell Odom
By Wendell Odom
TestKing 640-801 Cisco CCNA Cisco qualified community affiliate
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Additional info for 640-801 Cisco CCNA Cisco Certified Network Associate
Both are specified in RFC 1334 and are supported on synchronous and asynchronous interfaces. com - 51 - 640 - 801 CCNA Self-Study CCNA ICND exam certification Guide (Ciscopress, ISBN 1-58720-083-X) Page 310+311 QUESTION NO: 70 Match the ISDN term to the appropriate description. Not all options on the left apply. Answer: Explanation: • LAPD – provides the data link protocol that allows delivery of messages across that D-channel to the local switch. • LAPB - Protocol and is designed primarily to satisfy the signaling requirements of ISDN basic access.
If a router is configured for IPX, Apple Talk, and IP on a PPP serial link, the router configured for PPP encapsulation automatically tries to bring I the appropriate control protocols for each layer 3 protocol. • Error recovery can be performed by the data-link protocol or a higher-layer protocol, or it might not be performed at all. Supported but not enabled by default. 52 during a router console session. What does this command use to test connectivity between the two devices? A. B. C. D. E. ICMP echo request Information request Timestamp reply Redirect Source quench Answer: A Explanation: The ping command sends an ICMP echo request packet to the stated destination address.
The Switch performs the address table lookup as soon as the destination address field in the header is received. The first bits in the frame can be sent out to out port before the final bits in the incoming frame are received. This does not allow the switch to discard frames that fail the FCS check. B. This is also same as A. But Switch waits 64 bytes to be received before forwarding the first bytes of the outgoing frame. Collisions may occur during first 64 bytes of the frame. Frames in error due to collision will not be forwarded.
640-801 Cisco CCNA Cisco Certified Network Associate by Wendell Odom