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QUESTION 41
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
QUESTION 21
When an OSPF design is planned, which implementation can help a router not have memory resource issues? Select the best response.
A. Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations.
B. Have a backbone area (area 0) with 4 routers and 30,000 external routes injected into OSPF.
C. Have less OSPF areas to reduce the need for interarea route summarizations.
D. Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2
QUESTION 1
Which statement is true about the implementation of IPv6 in an already existing IPv4 network?
A. IPv6 can be routed using the same routing protocol versions as IPv4
B. A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them.
C. IPv4 and IPv6 networks can be routed simultaneously.
D. Only OSPF version 3 can be utilized for routing IPv4 and IPv6.