Cisco 642-813 Online Practice Questions and Exam Preparation

Cisco 642-813 Online Questions & Answers

• Question 1:

  Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative root port. Which spanning-tree technology is used to accomplish backup root port selection?

  A. PVST+
  B. PortFast
  C. BackboneFast
  D. UplinkFast
  E. Loop Guard
  F. UDLD
  D. UplinkFast

• Question 2:

  What action should a network administrator take to enable VTP pruning on an entire management domain?

  A. Enable VTP pruning on any client switch in the domain.
  B. Enable VTP pruning on every switch in the domain.
  C. Enable VTP pruning on any switch in the management domain.
  D. Enable VTP pruning on a VTP server in the management domain.
  D. Enable VTP pruning on a VTP server in the management domain.

• Question 3:

  A network engineer changed the port speed and duplex setting of an existing EtherChannel bundle that uses the PAgP protocol. Which statement describes what happens to all ports in the bundle?

  A. PAgP changes the port speed and duplex for all ports in the bundle.
  B. PAgP drops the ports that do not match the configuration.
  C. PAgP does not change the port speed and duplex for all ports in the bundle until the switch is rebooted.
  D. PAgP changes the port speed but not the duplex for all ports in the bundle.
  A. PAgP changes the port speed and duplex for all ports in the bundle.

• Question 4:

  Which protocol will enable a group of routers to form a single virtual router and will use the real IP address of a router as the gateway address?

  A. Proxy ARP
  B. HSRP
  C. IRDP
  D. VRRP
  E. GLBP
  D. VRRP

• Question 5:

  In a Cisco switch, what is the default period of time after which a MAC address ages out and is discarded?

  A. 100 seconds
  B. 180 seconds
  C. 300 seconds
  D. 600 seconds
  C. 300 seconds

• Question 6:

  Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server?

  A. ip dhcp snooping trust
  B. ip dhcp snooping
  C. ip dhcp trust
  D. ip dhcp snooping information
  A. ip dhcp snooping trust

• Question 7:

  Which statement about restrictions for multichassis LACP is true?

  A. It is available only on a Cisco Catalyst 6500 Series chassis.
  B. It does not support 1Gb links.
  C. Converting a port channel to mLACP can cause a service disruption.
  D. It is not available in VSS.
  C. Converting a port channel to mLACP can cause a service disruption.

• Question 8:

  When you design a switched network using VTPv2, how many VLANs can be used to carry user traffic?

  A. 1000
  B. 1001
  C. 1024
  D. 2048
  E. 4095
  F. 4096
  B. 1001

• Question 9:

  The network monitoring application alerts a network engineer of a client PC that is acting as a rogue DHCP server. Which two commands help trace this PC when the MAC address is known? (Choose two.)

  A. switch# show mac address-table
  B. switch# show port-security
  C. switch# show ip verify source
  D. switch# show ip arp inspection
  E. switch# show mac address-table address
  A. switch# show mac address-table
  E. switch# show mac address-table address

• Question 10:

  Which option describes a limitation of LLDP?

  A. LLDP cannot provide information about VTP.
  B. LLDP does not support TLVs.
  C. LLDP can discover only Windows servers.
  D. LLDP can discover up to two devices per port.
  A. LLDP cannot provide information about VTP.