Examcollection 400-101 VCE

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400-051
CCIE Routing and Switching
VCE Question Answer
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Question NO 1 Which two options are the two
main phases of PPPoE? (Choose two.) A. Active
Discovery Phase B. IKE Phase C. Main Mode
Phase D. PPP Session Phase E. Aggressive
Mode Phase F. Negotiation Phase Answer AD
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Question NO 2 Refer to the exhibit. Why is the
OSPF state in 2WAY/DROTHER? A. This is the
expected output when the interface Ethernet0/0 of
R1 is configured with OSPF Priority 0. B. There
is a duplicate router ID. C. There is an MTU
mismatch. D. There is an OSPF timer (hello/dead)
mismatch. E. This is the expected output when R1
is the DR. Answer A
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Question NO 3 In a no backbone OSPF area, all
traffic that is destined to the Internet is
routed by using a default route that is
originated by the ABR. Which change in the
configuration of the OSPF area type causes
traffic from that area that is destined to the
Internet to be dropped? A. The OSPF area
changes from NSSA to totally stubby area. B.
The OSPF area changes from NSSA to regular
area. C. The OSPF area changes from stub area
to totally stubby area. D. The OSPF area
changes from stub area to NSSA. Answer D
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Question NO 4 Which measure does ISIS use to
avoid sending traffic with a wrong MTU
configuration? A.ISIS does not protect from MTU
mismatch. B.MTU value is communicated in ISIS
Sequence Number PDUs (SNP), and ISIS adjacency is
not established if an MTU mismatch is
detected. C.ISIS uses path MTU discovery as
specified in RFC 1063. D.ISIS uses padding of
hello packets to full MTU. Answer D
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Question NO 5 Refer to the exhibit. Assuming
that the peer is configured correctly and the
interface is up, how many neighbors will be seen
in the EIGRPv6 neighbor table on this IPv6-only
router? A. one neighbor, which will use a
local router-id of 6010. AB8. . /64 B. one
neighbor, which will use a local router-id of
6020. AB8. . /64 C. none, because EIGRPv6 only
supports authenticated peers D. none, because
of the mismatch of timers E. none, because
there is no EIGRP router ID configured Answer E
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Question NO 6 Which type of EIGRP routes are
summarized by the auto-summary command? A.
internal routes that are learned from a peer that
is outside the range of local network
statements B. external routes that are learned
from a peer that is inside the range of local
network statements C. locally created routes
that are outside the range of local network
statements D. external routes that are learned
from a peer that is outside the range of local
network statements Answer B
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Question NO 7 What is the range of addresses
that is used for IPv4-mapped IPv6 addresses? A.
2001. db9. . /32 B. 2001. db8. . /32 C.
2002. . /16 D. . . ffff. /16 E. . . ffff.
0. 0/96 Answer E
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Question NO 8 Refer to the exhibit. Which
statement is true? A. R2 is directly
connected to the receiver for this group and is
the winner of an assert mechanism. B. R2 is
directly connected to the receiver for this
group, and it forwards the traffic onto
Ethernet3/0, but it is forwarding duplicate
traffic onto Ethernet3/0. C. R2 has the A flag
(Accept flag) set on Ethernet 3/0. This is fine,
since the group is in BIDIR PIM mode. D. R2 is
directly connected to the receiver for this group
and is the loser of an assert mechanism. E.
The A flag is set until the SPT threshold is
reached for this multicast group. Answer A
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Question NO 9 As a best practice, when a router
is configured as an EIGRP Stub, which routes
should be received from its distribution
neighbor? A. the default route B. static
routes C. internal routes only D. internal
and external routes Answer A
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Question NO 10 Which two options describe two
functions of a neighbor solicitation message?
(Choose two.) A. It requests the link-layer
address of the target. B. It provides its own
link-layer address to the target. C. It
requests the site-local address of the target. D.
It provides its own site-local address to the
target. E. It requests the admin-local address
of the target. F. It provides its own
admin-local address to the target. Answer AB
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