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| Question ID 18555 | Which three TLVs does LLDP use to discover network devices? (Choose three.)
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| Option A | Management address
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| Option B | Port description
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| Option C | Network policy
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| Option D | System name
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| Option E | Location information
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| Option F | Power management
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| Correct Answer | A,B,D |
Explanation Explanation: This set includes the following five TLVs used in LLDP: ✑ Port description TLV: Provides a description of the port in an alpha-numeric format. The value equals the ifDescr object, if the LAN device supports RFC 2863. ✑ System name TLV: Provides the system's assigned name in an alpha-numeric format. The value equals the sysName object, if the LAN device supports RFC 3418. ✑ System description TLV: Provides a description of the network entity in an alpha- numeric format. This includes system's name and versions of hardware, operating system and networking software supported in the device. The value equals the sysDescr object, if the LAN device supports RFC 3418. ✑ System capabilities TLV: Indicates the primary function(s) of the device and whether or not these functions are enabled in the device. The capabilities are indicated by two octects. Bits 0 through 7 indicate Other, Repeater, Bridge, WLAN AP, Router, Telephone, DOCSIS cable device and Station respectively. Bits 8 through 15 are reserved. ✑ Management address TLV: Indicates the addresses of the local LLDP agent. Other remote managers can use this address to obtain information related to the local device. Reference: http://www.eetimes.com/document.asp?doc_id=1272069
| Question ID 18556 | Which two fields reside in the initial CHAP challenge packet? (Choose two.)
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| Option A | the authentication name of the challenger
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| Option B | a random hash value generated by the device
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| Option C | the hashed packet type ID
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| Option D | the packet type ID in clear text
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| Correct Answer | A,D |
Explanation Explanation: When a caller A dials in to an access server B, The Access server sends across the link an initial Type 1 authentication packet called a Challenge. This Challenge packet contains a randomly generated number, an ID sequence number to identify the challenge (sent in clear text) and the authentication name of the challenger. Reference: http://www.rhyshaden.com/ppp.html