400-007

400-007 practice questions, page 11 of 14, with answer review and explanations.

Question 51

An enterprise network has two core routers that connect to 200 distribution routers and uses full-mesh iBGP peering between these routers as its routing method. The distribution routers are experiencing high CPU utilization due to the BGP process. Which design solution is the most cost effective?

  1. Increase the memory on the core routers.
  2. Increase bandwidth between the core routers.
  3. Implement eBGP between the core and distribution routers.
  4. Increase the memory on the distribution routers.
  5. Implement route reflectors on the two core routers.

Question 52

Which purpose of a dynamically created tunnel interface on the design of IPv6 multicast services is true?

  1. first-hop router registration to the RP
  2. multicast source registration to the RP
  3. multicast client registration to the RP
  4. transport of all IPv6 multicast traffic

Question 53

Company XYZ network runs IPv4 and IPv6 and they want to introduce a multidomain, multicast-based network. The new design should use a flavor of PIM that forwards traffic using SPT. Which technology meets this requirement?

  1. PIM-SSM
  2. PIM-SM
  3. BIDIR-PIM
  4. PIM-DM

Question 54

Company XYZ has 30 sites running a legacy private WAN architecture that connects to the Internet via multiple high-speed connections. The company is now redesigning their network and must comply with these design requirements: * Use a private WAN strategy that allows the sites to connect to each other directly and caters for future expansion * Use the Internet as the underlay for the private WAN * Securely transfer the corporate data over the private WAN Which two technologies should be incorporated into the design of this network? (Choose two.)

  1. PPTP
  2. DMVPN
  3. IPsec
  4. GET VPN
  5. S-VTI

Question 55

Refer to the exhibit. An engineer is designing the traffic flow for AS 111. Traffic from AS 111 should be preferred via AS 100 for all external routes. A method must be used that only affects AS 111. Which BGP attributes are best suited to control outbound traffic?

  1. MED
  2. community
  3. local preference
  4. AS path