Cisco 642-813 Online Practice Questions and Exam Preparation

Cisco 642-813 Online Questions & Answers

• Question 131:

  Ferris Plastics, Inc. is a medium sized company, with an enterprise network (access, distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. The distribution switches are configured to use HSRP to

  provide a high availability solution.

  ?DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105

  ?DSW2 - primary device for VLAN 103 and VLAN 104

  ?A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device, unless GigabitEthernet1/0/1 on backup device has also failed.

  Troubleshooting has identified several issues. Currently all interfaces are up. Using the running configurations and show commands, you have been asked to investigate and respond to the following question.

  

  All interfaces are active. DSW2 has not become the active device for the VLAN 103 HSRP group. As related to the VLAN 103 HSRP group, what can be done to make the group function properly?

  A. On DSW1, disable preempt.
  B. On DSW1, decrease the priority value to a value less than 190 and greater than 150.
  C. On DSW2, increase the priority value to a value greater 200 and less than 250.
  D. On DSW2, increase the decrement value in the track command to a value greater than 10 and less than 50.
  C. On DSW2, increase the priority value to a value greater 200 and less than 250.

• Question 132:

  Which type of information does the DHCP snooping binding database contain?

  A. untrusted hosts with leased IP addresses
  B. trusted hosts with leased IP addresses
  C. untrusted hosts with available IP addresses
  D. trusted hosts with available IP addresses
  A. untrusted hosts with leased IP addresses

• Question 133:

  A server with a statically assigned IP address is attached to a switch that is provisioned for DHCP snooping. For more protection against malicious attacks, the network team is considering enabling dynamic ARP inspection alongside DHCP snooping. Which solution ensures that the server maintains network reachability in the future?

  A. Disable DHCP snooping information option.
  B. Configure a static DHCP snooping binding entry on the switch.
  C. Trust the interface that is connected to the server with the ip dhcp snooping trust command.
  D. Verify the source MAC address of all untrusted interfaces with ip dhcp snooping verify mac-address command.
  B. Configure a static DHCP snooping binding entry on the switch.

• Question 134:

  Refer to the exhibit.

  

  Which option is the most likely explanation of the duplicate address message logged?

  A. spanning-tree loop
  B. HSRP misconfiguration
  C. a PC with IP of 10.10.1.1
  D. a hardware problem
  B. HSRP misconfiguration

• Question 135:

  Which two protocols can be automatically negotiated between switches for trunking? (Choose two.)

  A. PPP
  B. DTP
  C. ISL
  D. HDLC
  E. DLCI
  F. DOT1Q
  C. ISL
  F. DOT1Q

• Question 136:

  Which command does a network engineer use to verify the spanning-tree status for VLAN 10?

  A. switch# show spanning-tree vlan 10
  B. switch# show spanning-tree bridge
  C. switch# show spanning-tree brief
  D. switch# show spanning-tree summary
  E. switch# show spanning-tree vlan 10 brief
  A. switch# show spanning-tree vlan 10

• Question 137:

  Which command globally enables AAA on a device?

  A. aaa new-model
  B. aaa authentication
  C. aaa authorization
  D. aaa accounting
  A. aaa new-model

• Question 138:

  An access switch has been configured with an EtherChannel port. After configuring SPAN to monitor this port, the network administrator notices that not all traffic is being replicated to the management server. What is a cause for this issue?

  A. VLAN filters are required to ensure traffic mirrors effectively.
  B. SPAN encapsulation replication must be enabled to capture EtherChannel destination traffic.
  C. The port channel can be used as a SPAN source, but not a destination.
  D. RSPAN must be used to capture EtherChannel bidirectional traffic.
  C. The port channel can be used as a SPAN source, but not a destination.

• Question 139:

  What is the function of NSF?

  A. forward traffic simultaneously using both supervisors
  B. forward traffic based on Cisco Express Forwarding
  C. provide automatic failover to back up supervisor in VSS mode
  D. provide nonstop forwarding in the event of failure of one of the member supervisors
  D. provide nonstop forwarding in the event of failure of one of the member supervisors

• Question 140:

  A network administrator configures 10 extended VLANs ranging from VLANs 3051 to 3060 in an enterprise network. Which version of VTP supports these extended VLANs?

  A. version 1
  B. version 2
  C. version 3
  D. VTP does not recognize extended VLANs.
  C. version 3