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36 Cards in this Set
- Front
- Back
What is the default weight in BGP? |
0 |
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In this state, the BGP speaker is waiting for the BGP start event, generally either the establishment of a TCP connection or the re-establishment of a previous connection. |
Idle
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In this state, BGP is waiting for the TCP connections to be formed. |
Connect |
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If the TCP connection is completed during the 'Connect' state, what stage will BGP move to? |
OpenSent |
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If the TCP connection is not completed during the 'Connect' state, what stage will BGP move to? |
Active |
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In this state, the BGP speaker is attempting to initiate a TCP session with the BGP speaker it wants to peer with. |
Active |
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If the BGP speaker is able to initiate a TCP session with the BGP speaker it wants to peer with BGP will move to this state. |
OpenSent |
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In this state the BGP speaker is waiting to receive an OPEN message from the remote BGP speaker. |
OpenSent |
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In this state, once the BGP speaker receives the OPEN message and no error is detected, the BGP speaker sends a KEEPALIVE message to the remote BGP speaker. |
OpenConfirm |
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In this state, all BGP neighbor negotiations are complete. |
Established |
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What number will you see under the 'State/PfxRcd' column in show ip bgp summary if a connection is established? |
2 |
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In BGP, which 'weight' value is better?
Lower or Higher |
Higher |
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In BGP, which Local Preference is better?
Higher or Lower |
Higher |
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In BGP, which is better regarding self originating routes?
Locally Injected or iBGP/eBGP learned? |
Locally Injected |
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Which is better regarding AS-Path in BGP?
Larger or Smaller |
Smaller |
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What is the hierarchy of Origin codes in BGP, starting with most preferred? |
I E ? |
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Which MED is chosen in BGP?
Higher or Lower |
Lower |
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In BGP, which routes are preferred?
Internal (iBGP) or External (eBGP) |
External (eBGP) |
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In BGP, what is the preferred IGP cost?
Higher or Lower |
Lower |
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In BGP, what is the preferred eBGP peering?
Older or Newer |
Older |
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In BGP, which Router ID (RID) is preferred?
Higher or Lower |
Lower |
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In BGP, which interface is preferred?
Higher or Lower |
Lower |
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Which BGP path attribute is Cisco proprietary? |
Weight |
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Which BGP path attribute must exist in the BGP update packet? |
AS_Path |
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This BGP attribute type must be recognized by all implementations of BGP and must appear in a BGP update message. If missing, a notification error will be generated. |
Well-known Mandatory |
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This BGP attribute type must be recognized by all implementations of BGP but may not be sent in the BGP update message (include LOCAL_PREF, ATOMIC_AGGREGATOR). |
Well-Known Discretionary |
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This BGP attribute type may or may not be recognized by all BGP implementations. Whether or not the receiving BGP router recognizes the attribute, it is nontransitive and is not passed along to other BGP peers (include MED). |
Optional Nontransitive |
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This BGP attribute type may or may not be recognized by all BGP implementations. Because the attribute is transitive, BGP accepts and advertises the attribute even if it is not recognized (include Community attribte). |
Optional Transitive |
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When the BGP path selection is being performed on a Cisco router, which BGP attribute is used first when determining the best path? |
Weight |
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Which BGP attribute is used to prevent routing loops? |
AS-Path |
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Which BGP show command provides the router ID, local preference, next hop and BGP path in it's output? |
show ip bgp |
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TRUE/FALSE
A BGP router should not use, or advertise to an external neighbor, a route learned by IBGP, unless that route is local or is learned from the IGP. |
TRUE |
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This BGP show command will provide path selection values. |
show ip bgp |
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This BGP show command will provide memory usage. |
show ip bgp summary |
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This BGP show command will provide Administrative Distance of BGP |
show ip route bgp |
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This BGP show command will provide notification, updates .... |
show ip bgp neighbor |