Term
Excessive broadcasts are generally a symptom of a problem at which layer?
physical
data link
network
transport |
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Definition
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Term
| ACL's work at which layer of the OSI model? |
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Definition
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Term
| Users are complaining of very long wait times to access resources on the network. The show interface command reveals collision counts far above the network baseline. At which OSI layer should the administrator begin troubleshooting? |
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Definition
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Term
| Encapsulation errors from mismatched WAN protocols on a serial link between two routers indicate a problem at which OSI layer? |
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Definition
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Term
| When would the multipoint keyword be used in Frame Relay PVC's configuration? |
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Definition
| When participating devices are in the same subnet. |
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Term
| Which three data link layer protocols are used in packet-switched WAN networks? |
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Definition
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Term
| What table does the EIGRP DUAL algorithm use to calculate the best route to each destination router? |
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Definition
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Term
| What two measures are used to prevent routing loops in networks that use distance vector routing protocols? |
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Definition
Split Horizon
Hold down timers |
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Term
| Where do distance vector routing protocols send their routing updates? |
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Definition
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Term
Which of the following commands will configure full duplex on fa0/1
full-duplex
duplex full |
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Definition
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Term
| At what layer of the OSI model does ping happen? |
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Definition
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Term
| Which wireless standard works only in the 2.4 GHz range and provides speeds up to 54 Mb/s? |
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Definition
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Term
| After several configuration changes are made to a router, the copy running-configuration startup-configuration command is issued. Where will the changes be stored? |
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Definition
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Term
| Which three STP states were replaced with the RSTP discarding state? |
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Definition
Listening
blocking
disabled |
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Term
| Which two commands can be used to verify the content and placement of access control lists? |
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Definition
Show run
show access-lists |
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Term
| A switch can be configured for three different forwarding modes. What are they? |
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Definition
1) fast forward
2) fragment free
3) store-and-forward |
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Term
| The output of the show ip interface brief command indicates that Serial0 is up but the line protocol is down. What are two possible causes for the line protocol being in the down state? |
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Definition
The encapsulation on the Serial0 interface is incorrect.
Keepalives are not being sent by the remote device |
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Term
| What is the effect of the access control list wildcard mask 0.0.0.15? (Which bits are matched and which are ignored) |
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Definition
The last four bits of a supplied IP address will be ignored.
The first 28 bits of a supplied IP address will be matched. |
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Term
| Which two location can be configured as a source for the IOS image in the boot system command? |
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Definition
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