| A | B |
| bottom up | begin troubleshooting at physical layer |
| divide and conquer | begin troubleshooting at network layer |
| same network or subnet | hosts must be on this with default gateway |
| no clockrate is set | ping won't work if __ __ __ __ on DCE |
| congestion problems | causes ping delays |
| show running-config | displays ACLs |
| domain names and version | these VTP parameters must match |
| IP address of subinterface | must be default gateway for VLAN |
| large failure domain | avoid this design weakness |
| single point of failure | design weakness that can bring network down |
| network baseline | do when network activity is normal |
| network baseline | repeat after upgrading |
| process number | EIGRP __ __ must match for all routers |
| variable length subnet mask | not supported by RIPv1 |
| hello and dead intervals | must match in OSPF area |
| password mismatch | can be problem with chap or pap |
| access mode | ports hosts connected to in __ __ |
| trunk mode | ports between switches in __ __ |
| encapsulation mismatch | layer 2 problem |
| debug ppp negotiation | view chap or pap authentication |