CCNA4 v4.0 Final Practical

1What are two characteristics of DSL technology? (Choose two.)

Uploads typically offer larger transfer rates than downloads.

Service providers deploy DSL in the local loop of the telephone network.

DSL download rates are reduced by large volumes of POTS voice traffic.

Filters and splitters allow POTS and DSL traffic to share the same medium.

DSL is a shared medium that allows many users to share bandwidth available from the DSLAM.

2When configuring remote access to a router, what is the significance of the no password command on a VTY line?

Logins are prevented on that line.

No password is required to log in to that line.

The remote user is not allowed to change the password for that line.

The remote user is prompted to change the line password after connecting to the router.

3Which three items are LCP options that can be configured for PPP? (Choose three.)

CHAP

Stacker

IPCP

CDPCP

Multilink

4An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local m address successfully from a remote network and can successfully resolve the mail server name to an IP address via th e us nslookup command. At what layer of the OSI model is the problem most likely to be found?

application

transport

network

data link

5Which combination of Layer 2 protocol and authentication should be used to establish a link between a Cisco and a non-Ci without sending authentication information in plain text?

HDLC with PAP

HDLC with CHAP

PPP with PAP

PPP with CHAP

6At what physical location does the responsibility for a WAN connection change from the service provider to the user?

DMZ

local loop

CSU/DSU

demarcation point

7

Refer to the exhibit. An ACL numbered 101 already exists on this router. What happens if the network administrator issues commands that are shown in the exhibit?

The new ACL overwrites the existing ACL.

The network administrator will receive an error message.

The existing ACL is modified to include the new commands.

A second ACL that is numbered 101 is created and contains only the new commands.

8Which important piece of troubleshooting information can be discovered about a serial interface using the show controllers

queuing strategy

serial cable type

interface IP address

encapsulation method

9

Refer to the exhibit. A network administrator is using two routers to test a WAN connection . What can be concluded based o of the show running-config commands?

The WAN link is using PPP encapsulation.

The WAN link speed is faster than a T1 line.

The router R2 serves as the DCE for the WAN link.

The WAN link is configured with the Cisco default encapsulation protocol.

10

Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch off VLSM is not being used. Which subnet mask will allow the most efficient utilization of IP addresses?