Cisco 640-878 Online Practice Questions and Exam Preparation

Cisco 640-878 Online Questions & Answers

• Question 51:

  Which two statements about NAT64 are true? (Choose two.)

  A. NAT64 packets traverse two IPv4 addressing domains.
  B. NAT64 packets are translated two times.
  C. There are two types of NAT64 (stateful or stateless).
  D. NAT is performed by the CPE and also by the service provider edge router.
  E. The DNS64 server embeds the IPv4 address from the DNS A record with a preconfigured IPv6 translation prefix.
  C. There are two types of NAT64 (stateful or stateless).
  E. The DNS64 server embeds the IPv4 address from the DNS A record with a preconfigured IPv6 translation prefix.

• Question 52:

  After configuring Q-in-Q on a new interface, the customer has requested that the IOS version and remote model also be viewable via the trunk. What additional command would need to be applied to both sides of the Q-in-Q trunk?

  A. l2protocol-tunnel cdp
  B. l2protocol-tunnel stp
  C. l2protocol-tunnel vtp
  D. l2protocol-tunnel lldp
  E. l2protocol-tunnel odr
  A. l2protocol-tunnel cdp

• Question 53:

  Which command configures a switchport to connect only a host device in VLAN 301?

  A. switchport access vlan 301
  B. switchport mode trunk vlan 301
  C. switchport mode access vlan 301
  D. switchport vlan 301
  A. switchport access vlan 301

• Question 54:

  What type of package is bootable on the Cisco ASR 1000 router running IOS-XE?

  A. boot package
  B. consolidated package
  C. sub-package
  D. supplemental package
  B. consolidated package

• Question 55:

  A service provider needs to implement a managed CE device that supports Cisco IOS ISSU, and the current CE support staff is highly trained in Cisco IOS only. Which Cisco router platform should the service provider implement as the managed CE device?

  A. Cisco ASR1K
  B. Cisco ISR-G2
  C. Cisco ASR9K
  D. Cisco 12000 GSR
  E. Cisco 7200
  F. Cisco 7600
  A. Cisco ASR1K

• Question 56:

  DRAG DROP

  Select and Place:

  

  

• Question 57:

  Which Cisco platform runs the Cisco IOS XE operating system?

  A. Cisco ASR9K
  B. Cisco CRS
  C. Cisco 12000 GSR
  D. Cisco ASR1K
  E. Cisco ME 3400
  F. Cisco ISR-G2
  D. Cisco ASR1K

• Question 58:

  

  Select and Place:

  

  

• Question 59:

  What command will install the image needed on the Cisco IOS-XR if the SSH configuration options are unavailable?

  A. install activate disk0:c12k-k9sec.pie-4.1.2
  B. install activate disk0:c12k-diags.pie-4.1.2
  C. install commit disk0:c12k-diags.pie-4.1.2
  D. install ssh activate disk0:c12k-k9sec.pie-4.1.2
  A. install activate disk0:c12k-k9sec.pie-4.1.2

• Question 60:

  Which two statements about carrier-grade NAT are true? (Choose two.)

  A. It conserves IPv4 addresses.
  B. A service provider issues private IP addresses to its customers.
  C. A service provider translates the private IP address of its customer to another private IP address.
  D. It is implemented on the CE and PE routers.
  E. It is designed to simplify IPv6 addressing.
  A. It conserves IPv4 addresses.
  B. A service provider issues private IP addresses to its customers.