Friday, March 25, 2011

CCNA3 Chapter 4 Practice Test Answers






What is the default Catalyst switch configuration?

  • VTP version 1, Mode server, Domain name cisco1, revision number 1.
  • VTP version 1, Mode server, no Domain name, revision number 0.
  • VTP version 2, Mode server, no Domain name, revision number 0.
  • VTP version 1, Mode client, Domain name cisco1, revision number 0.

Which switches can only use VTP version 1, and not version 2?

  • Catalyst 2960 switches
  • All Catalyst switches
  • Older Cisco switches
  • Non-Cisco switches

If you have a domain of switches that are all capable of using version 2, and you want them to use version 2, which switches must you configure for version 2?

  • All switches
  • All server switches
  • Any server switch
  • Any switch

You have a group of switches that have never been configured for VTP, and you want them to act as a VTP domain. What is the best way of ensuring that they all have the same domain name?

  • Configure the name on one switch that is in server mode and allow the name to propagate to the other switches.
  • Configure the name on one switch, copy the name, and paste it to the other switches.
  • Configure the name on one switch, copy the configuration to a TFTP server, and download it to the other switches.
  • It does not matter whether they have the same domain name or not as long as they are using the same version and the same password.

Why should you configure a domain name on a server switch before creating the VLANs that you want to share with the domain?

  • VLANs cannot be created on a switch until the domain name is configured.
  • Existing VLANs (except the default VLAN) are deleted when you configure a domain name.
  • VLANs created before the domain name is configured will be local to the switch.
  • You need to create VLANs in VTP configuration mode.
Which is true about the switches in the diagram?

  • S1 must be in the same VTP domain as S4
  • S8 must be in the same VTP domain as S9
  • S2 cannot be in the same VTP domain as S6
  • S4 cannot be in the same VTP domain as S7
All the switches have the same VTP domain name. S1 has been configured as a server. Which         is true?

  • All the other switches in the domain must be configured as either client or transparent.
  • S4 should not be transparent as this will cut S5 and S6 off from the rest of the domain.
  • S4, S5 and S6 can form their own domain as well as belonging to the same domain as S1.
  • S5 may be a server switch in the same domain as S1.

Which is true of VTP?

  • It operates at OSI layer 1
  • It operates only on Cisco switches
  • A VTP domain can extend beyond a layer 3 switch
  • VTP is enabled by default on Catalyst switches

Which of these is not the name of a VTP advertisement?

  • Summary advertisement
  • Request advertisement
  • Detail advertisement
  • Subset advertisement

How is a VTP advertisement encapsulated?

  • In the data field of an IP packet
  • In the data field of an Ethernet frame
  • In a set of extra fields added to the frame header
  • As part of the tag of a tagged Ethernet frame



What does a VTP server switch do if it receives a VTP subset advertisement with a higher revision number than its existing revision number?

  • It ignores the advertisement because only client switches update their VLAN information from advertisements.
  • It increases the revision number by 1 and passes the advertisement on to other switches in the domain.
  • It updates its own VLAN configuration by using the information in the advertisement.
  • It updates its own revision number but does not use the information contained in the advertisement.

What can you not do on a VTP client switch?

  • Configure the VTP domain name
  • Delete a VLAN
  • Assign a switchport to a VLAN
  • Set a password
 In the diagram, switches S1, S2, S3, S5 and S6 all have switchports on VLANs 10, 20 and 30. Switch S4 does not use any of these VLANs. Switch S4 has switchports on VLANs 40 and 50, which are not used elsewhere. How should S4 be configured?

  • S4 should be put in transparent mode.
  • S4 should be a server, and have a different domain name from the other switches.
  • S4 should have its revision number reset to zero.
  • S4 should have a different password from the other switches.

How many server switches should you have in a VTP domain?

  • Only one.
  • It is a good idea to have two, so that there is a back up for the data, but there cannot be more than two.
  • Up to half the switches can be servers.
  • At least two, but it is possible for them all to be servers.

What happens when a client switch is reloaded?

  • It loses all its VLAN data and has to be reconfigured.
  • It loses all its VLAN data and has to learn them again from a server.
  • It can retrieve its VLANs from NVRAM providing that the configuration has been saved.
  • It returns to the default server mode.

Where can VTP advertisements be sent?

  • On any links connecting switches.
  • Only on trunk links.
  • Only on links using 802.1Q frame tagging
  • Only on links using ISL frame tagging
 The switches have ports assigned to the VLANs shown. What is the best way of restricting VLAN 4 broadcast transmissions in order to cut down unnecessary traffic?

  • Enable VTP pruning on the switches.
  • Add a router between S1 and S4.
  • Have two separate VTP domains, one for S1, S2 and S3 and the other for S4, S5 and S6.
  • Make S1 into a transparent mode switch.

What triggers a VTP server switch to send a summary advertisement? Choose all that apply.

  • A 5 minute timer expires.
  • A new VLAN has just been configured on the switch.
  • An existing VLAN has just had its name changed.
  • A Switchport had just been moved from one VLAN to another
 The switches are not exchanging VLAN information correctly. What is the likely problem?

  • One of the switches is in the wrong mode.
  • One of the switches does not have switchports in VLANs 2 or 3.
  • The switches do not all have the same config revision number.
  • The switches are not all in the same VTP domain.






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