642-902 Q&A – Mix Practice Questions (16-20)

Section 6 – Mix Practice Questions

QUESTION NO: 16
What is the purpose of configuring the router as a PPPoE client? Select the best response.
A. to provide VPN access over L2TP
B. to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity
C. for DSL connectivity and removing the need for the end-user PC to run the PPPoE client software
D. for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system
Answer: C

QUESTION NO: 17
What two situations could require the use of multiple routing protocols? (Choose two)
A. when using UNIX host-based routers
B. when smaller broadcast domains are desired
C. because having multiple routing protocols confuses hackers
D. when migrating from an older Interior Gateway Protocol (IGP) to a new IGP
E. when all equipment is manufactured by Cisco
F. when there are multiple paths to destination networks
Answer: AD
Explanation:
Simple routing protocols work well for simple networks, but networks grow and become more complex. While running a single routing protocol throughout your entire IP internetwork is desirable, multiprotocol routing is common for a number of reasons, including company mergers, multiple departments managed by multiple network administrators, multivendor environments, or simply because the original routing protocol is no longer the best choice. Often, the multiple protocols are redistributed into each other during a migration period from one protocol to the other.

QUESTION NO: 18
Refer to the exhibit. How would you confirm on R1 that load balancing is actually occurring on the default- network (0.0.0.0)? Select the best response.

18
A. Use ping and the show ip route command to confirm the timers for each default network resets to 0.
B. Load balancing does not occur over default networks; the second route will only be used for failover.
C. Use an extended ping along with repeated show ip route commands to confirm the gateway of last resort address toggles back and forth.
D. Use the traceroute command to an address that is not explicitly in the routing table.
Answer: D

QUESTION NO: 19
What is a key benefit of using a GRE tunnel to provide connectivity between branch offices and headquarters? Select the best response.
A. authentication, integrity checking, and confidentiality
B. less overhead
C. dynamic routing over the tunnel
D. granular QoS support
E. open standard
F. scalability
Answer: C

QUESTION NO: 20
A policy needs to be implemented on Router B so that any traffic sourced from 172.16.10.0/24 will be forwarded to Router C. Which configuration on Router B will achieve the desired effect?
Select the best response.

20
A. access-list 1 permit 172.16.10.0 0.0.0.255
!
interface s0
ip policy route-map policy
!
route-map policy permit 10 match ip address 1
set ip next-hop 172.16.12.3
B. access-list 1 permit 172.16.10.0 0.0.0.255
!
interface e0
ip policy route-map policy
!
route-map policy permit 10 match ip address 1
set ip next-hop 172.16.12.2
C. access-list 1 permit 172.16.10.0 0.0.0.255
!
interface e0
ip policy route-map policy
!
route-map policy permit 10 match ip address 1
set ip next-hop 172.16.14.4
D. access-list 1 deny 172.16.10.0 0.0.0.255
!
interface s0
ip policy route-map policy
!
route-map policy permit 10 match ip address 1
set ip next-hop 172.16.12.2
Answer: A

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