Cisco 640-878 Online Practice Questions and Exam Preparation

Cisco 640-878 Online Questions & Answers

• Question 101:

  What is the advantage of running IOS-XE individual consolidated packages versus subpackages?

  A. decreases storage requirements
  B. optimizes router memory usage
  C. simplified installation
  D. lowers CPU utilization
  B. optimizes router memory usage

• Question 102:

  What does the command 'rep admin vlan 100' accomplish?

  A. confines flooding of REP messages to VLAN 100
  B. reserves REP admin VLAN to 100 so that no REP messages are sent on VLAN 100
  C. forces VLAN 100 into a REP block state
  D. this is an invalid command
  A. confines flooding of REP messages to VLAN 100

• Question 103:

  On Cisco IOS XR software, which two of the address-family command options in IS-IS configuration mode are valid? (Choose two)

  A. address-family clns
  B. address-family ipv4 unicast
  C. address-family ipv6 unicast
  D. address-family vpnv4
  E. address-family vpnv6
  B. address-family ipv4 unicast
  C. address-family ipv6 unicast

• Question 104:

  Refer to the configuration example exhibit.

  

  Which statement is true?

  A. A trunk port has been created and VLAN has been allowed.
  B. An access port has been created on a UNI.
  C. A customer VLAN of 209 is configured.
  D. A QinQ VLAN of 118 is configured.
  D. A QinQ VLAN of 118 is configured.

• Question 105:

  When configuring an ACL entry, which network and wildcard mask matches only IP addresses 10.8.144.0 to 10.8.151.255?

  A. 10.8.144.0 0.0.3.255
  B. 10.8.144.0 0.0.7.255
  C. 10.8.144.0 0.0.15.255
  D. 10.8.144.0 0.0.252.255
  E. 10.8.144.0 0.0.248.255
  F. 10.8.144.0 0.0.240.255
  B. 10.8.144.0 0.0.7.255

• Question 106:

  Refer to the configuration output below. OSPFv2 is already configured on a customer router and the customer is requesting that OSPFv3 be added. What configuration is needed in order to add OSPFv3 to the fastethernet0/0 interface?

  Configuration: ipv6 router ospf 1 router-id 209.165.200.227 area 2 nssa

  interface fastethernet0/0 ip address 2001:DB8:0:7::

  A. interface FastEthernet0/0 ipv4 ospf 1 area 2
  B. interface FastEthernet0/0 ipv6 ospf 1 area 2
  C. interface FastEthernet0/0 ipv6 1 area 2
  D. interface FastEthernet0/0 area 2 ospf 1 ipv6
  B. interface FastEthernet0/0 ipv6 ospf 1 area 2

• Question 107:

  Which BGP attribute is also used for loop prevention?

  A. weight
  B. local preference
  C. MED
  D. AS path
  D. AS path

• Question 108:

  Refer to the exhibit.

  

  Which statement is true?

  A. VLAN 1 traffic is sent untagged on the fa0/11 trunk port.
  B. All VLANs traffic, including the native VLAN traffic, is tagged with a VLAN ID when it is sent over the fa0/11 trunk port.
  C. The switchport trunk allowed vlan command is not configured; therefore, no VLANs are allowed on the trunk.
  D. The encapsulation type that is used is 802.1ad.
  E. The switchport trunk native vlan command is not configured; therefore, the trunk is not operational.
  A. VLAN 1 traffic is sent untagged on the fa0/11 trunk port.

• Question 109:

  Which two statements about NAT444 are true? (Choose two.)

  A. NAT444 packets are translated three times.
  B. NAT packets traverse three IPv4 addressing domains.
  C. NAT444 needs to work together with DNS64.
  D. There are two types of NAT444 (stateful or stateless).
  E. NAT is performed by the CPE and also by the service provider router.
  B. NAT packets traverse three IPv4 addressing domains.
  E. NAT is performed by the CPE and also by the service provider router.

• Question 110:

  Which three statements about access control lists on a Cisco IOS router are true? (Choose three)

  A. The more specific ACL entries should be placed at the top of the ACL.
  B. The generic ACL entries should be placed at the top of the ACL, to filter general traffic and reduce noise on the network.
  C. ACLs always search for the most specific entry before taking any filtering action.
  D. Router-generated packets cannot be filtered by the interface ACLs on the router.
  E. Extended ACLs should be placed as close to the destination as possible.
  F. There must be at least one permit statement in an ACL, or all traffic is denied.
  A. The more specific ACL entries should be placed at the top of the ACL.
  D. Router-generated packets cannot be filtered by the interface ACLs on the router.
  F. There must be at least one permit statement in an ACL, or all traffic is denied.