CCIE SP Written Exam (Version 3.0)
Number: 350-029
Passing Score: 790
Time Limit: 120 min
File Version: 421Q+69
QUESTION 31
If two routers, both reachable from one another, originate functionally equivalent type 2 external LSAs (i.e. same destination, cost and non-zero forwarding
address). Which of the following statements would apply?
A. Only the LSA generated by the lowest RID ASBR will exist in the network
B. Two LSAs will exist in the network for this destination, but only the one generated by the highest RID ASBR will be used
C. Two LSAs will exist in the network for this destination, and both will be used
D. Only the LSA generated by the highest RID ASBR will exist in the network
Correct Answer: D
QUESTION 32
The show ip ospf database external command displays information about which OSPF LSA type?
A. LSA type 1
B. LSA type 2
C. LSA type 7
D. LSA type 3
E. LSA type 9
F. LSA type 5
Correct Answer: F
QUESTION 33
Routes redistributed into an OSPF ASBR are which LSA type?
A. LSA type 6
B. LSA type 1
C. LSA type 2
D. LSA type 5
E. LSA type 3
F. LSA type 4
Correct Answer: D
QUESTION 34
When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured, which two statements are true? (Choose two.)
A. OSPF hello interval is 5 seconds
B. OSPF hello interval is 1 second
C. OSPF dead interval is 1 second
D. OSPF dead interval is 5 seconds
E. OSPF dead interval is 20 seconds
F. OSPF hello interval is 0.2 second
Correct Answer: CF
QUESTION 35
Which three statements about OSPF partial SPF are true? (Choose three)
A. If it is triggered by Type 4, all Type 4 LSAs that announce a certain ASBR and all Type 5 and 7 LSAs are processed
B. If it is triggered by Types 5 and 7, all Type 5 and 7 LSAs that contribute to a certain destination are processed.
C. If it is triggered by Type 2, all Type 2 LSAs that contribute to a certain destination are processed.
D. It is triggered by the change of Type 3, 4, 5, and 7 LSAs.
E. It is triggered by the change of Type 2, 3, 5, and 7 LSAs
Correct Answer: ABD
QUESTION 36
Which statement about OSPF ASBR summary LSA is true?
A. It is generated by an ASBR and indicates the reachability to an ABR located in another area.
B. It is generated by ABR and indicates the reachability to an ASBR located in another AS.
C. It is generated by ABR and indicates reachability to itself.
D. It is generated by ABR and indicates the reachability to an ASBR located in another area.
E. It is generated by an ASBR and indicates the reachability to an ABR.
Correct Answer: D
:QUESTION 37
Which two statements about OSPF IPv6 routing are true? (Choose two)
A. It requires OSPF version 3.
B. automatically detects neighbors over NHMA interfaces
C. It supports encryption using
D. It uses LSA type 9
E. It uses LSA type 8
Correct Answer: AE
QUESTION 38
Which statement about OSPF authentication is true?
A. To enable OSPF authentication in a network, OSPF area 0 authentication must be enabled first.
B. The payload of OSPFv3 packets contains no authentication information.
C. OSPFv3 supports Advanced Encryption Standard
D. OSPFv3 uses router ID as a key to encrypt OSPF hello packets.
E. OSPF MD5 authentication uses TCP, and Plan Test authentication uses UDP.
Correct Answer: B
QUESTION 39
Which information is carried in the OSPFv3 intra-area Prefix LSA?
A. All link-local addresses
B. All IPv6 prefix and topology information that OSPFv2 included in Router LSA and Network LSA
C. List of options associated with the link to all other routers attached to the link
D. All prefix-specific information that OSPFv2 included in Router LSA and Network LSA
Correct Answer: D
QUESTION 40
The OSPF External LSA for prefix x.x.x.x exists in the OSPF database, but the prefix is not installed in the routing table. Which are possible explanations?
Choose three)
A. ASBR originating the LSA is not reachable.
B. Route to the Forwarding Address is an internal OSPF route.
C. Inbound distribute-list is configured under the ospf process and it is denying x.x.x.x
D. Route to the ASBR does not follow the same path as the one to the Forwarding Address.
E. Route to the Forwarding Address is not an internal OSPF route.
Correct Answer: ACE
QUESTION 41
Select two valid administratively scoped multicast addresses in networks running Interior Gateway protocols like EIGRP and OSPF (Choose two).
A. 239.255.255.255
B. 224.0.0.10
C. 239.0.0.1
D. 224.0.0.5
Correct Answer: AC
QUESTION 42
Which two statements about EIGRP are true? (Choose two)
A. EIGRP supports VLSM, route summarization, and routing update authentication.
B. If the feasible successor has a higher advertised distance than the successor route, it becomes the primary route.
C. Passive routes are in the process of being calculated by DUAL.
D. EIGRP exchanges full routing table information with neighboring routers with every update.
E. A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.
Correct Answer: AE
QUESTION 43
With EIGRP DUAL, a feasible successor is considered loop-free if which condition is true?
A. Its AD is equal to the metric of the successor
B. Its AD is less than the successor's FD
C. Its AD is equal to the successor's FD
D. Its AD is greater than the successor's FD
E. Its FD is equal to the metric of the successor
Correct Answer: B
QUESTION 44
Regarding to EIGRP protocol, a "successor" is:
A. A neighbor that has met the feasibility condition
B. A neighbor that has met the feasibility condition and has the lowest cost path towards the destination
C. Any neighbor that is in the path towards the destination.
D. Any neighbor that is in the path towards the destination and whose reported distance equals the feasible distance.
Correct Answer: B
QUESTION 45
RIPv2 differs from RIPv1 in which three things? (Choose three).
A. it uses multicast address 224.0.0.10, instead of broadcast.
B. it uses multicast address 224.0.0.9, instead of broadcast.
C. it can use either multicast or broadcast addresses,instead of just broadcast.
D. it sends incremental updates,instead of periodic updates.
E. it is classless, instead of classfull
F. it supports authentication, and RIPv1 does not
Correct Answer: BEF
QUESTION 46
What does RPL stand for?
A. routing primary language
B. routing policy language
C. routing police language
D. routing program language
E. routing protocol language
Correct Answer: B
QUESTION 47
In a frame, the MPLS label is imposed where?
A. Before the layer 2 header
B. Within the Layer 3 header
C. After the Layer3 header and before Layer2 header
D. After the Layer2 header and before Layer3 header
Correct Answer: D
QUESTION 48
What is the action of "pop" in the context of MPLS switching?
A. It replaces the top label in the MPLS label stack with a set of labels.
B. It replaces the top label in the MPLS label stack with another value.
C. It adds a top label in MPLS label stack.
D. It removes the top label in the MPLS label stack.
Correct Answer: D
QUESTION 49
Which four of these are MPLS label header fields? (Choose four.)
A. Label
B. VPI VCI
C. EXP
D. TTL
E. FCS
F. S flag
Correct Answer: ACDF
QUESTION 50
Based on the following output in a router A running LDP, which statement is true?
ROUTER-A#show mpls ldp bindings 50.0.0.1 32
lib entry: 50.0.0.1/32, rev 5 local bindinG. label: imp-null remote bindinG. lsr: 50.0.0.4:0, label: 16
A. None of the above.
B. The IP address 50.0.0.1/32 is assigned to the non-directly connected LDP neighbor, 50.0.0.4.
C. The IP address 50.0.0.1/32 is assigned to one of its own interfaces.
D. The IP address 50.0.0.1/32 is assigned to its directly connected LDP neighbor, 50.0.0.4.
Correct Answer: C
QUESTION 51
Which three statements about MPLS Label Distribution Protocol (LDP) are valid?
A. LDP hello packets are sent to UDP port 646
B. LDP hello packets are sent to TCP port 711
C. LDP sessions are TCP sessions to port 646
D. LDP sessions are TCP sessions to port 711
E. LDP establishes a peer relationship with another router that must be directly attached.
F. LDP can establishes a peer relationship with another router that is not directly attached
Correct Answer: ACF
QUESTION 52
Which option describes the incorrect usage of the Label Distribution method?
A. MP-BGP is used for label distribution for VPN customer routes.
B. LDP is primarily used in internal networks of MPLS-VPN providers.
C. MP-BGP is used for label distribution in MPLS Traffic Engineered networks.
D. Directed LDP is used for label distribution in L2-VPN Attachement Circuits.
Correct Answer: C
QUESTION 53
Which four services use the inner labels of an MPLS label stack? (Choose four)
A. MPLS VPN
B. switching path in MPLS core
C. Cisco MPLS Traffic Engineering and Fast Reroute
D. MPLS over ATM
E. VPN over Traffic Engineering core
F. any transport over MPLS
Correct Answer: ACEF
QUESTION 54
Which 4 statements regarding MPLS Label Stack Encoding is true?
A. A value of 4 represents the "Implicit NULL Label."
B. A value of 0 represents the "IPv4 Explicit NULL Label."
C. A value of 1 represents the "Router Alert Label".
D. A value of 2 represents the "IPv6 Explicit NULL Label"
E. A value of 1 represents the "IPv1 Explicit NULL Label"
F. A value of 3 represents the "Implicit NULL Label"
Correct Answer: BCDF
QUESTION 55
The mechanisms for distributing LDP are:
A. CEF and the FIB table
B. UDP and IP
C. A and B
D. RSVP and CEF
E. LDP and RSVP
Correct Answer: E
QUESTION 56
Based on the following output in R1, which statement is truE.
R1#show mpls forwarding-table 50.0.0.3 detail Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 19 17
50.0.0.3/32 0 Et0/0 192.168.0.14
A. If a labeled packet arrives with the topmost label of 17, all the labels will be removed and a clear IP packet is sent to Next Hop 192.168.0.14 on Ethernet 0/0.
B. If a labeled packet arrives with the topmost label of 17, the label is replaced with label 19 and the packet is sent out on the Ethernet 0/0 interface.
C. If a labeled packet arrives with the topmost label of 19, the label is replaced with label 17 and the packet is sent out on the Ethernet 0/1 interface.
D. If a labeled packet arrives with the topmost label of 19, the label is replaced with label 17 and the packet is sent out on the Ethernet 0/0 interface.
Correct Answer: D
QUESTION 57
What is the encapsulation mode for MPLS running on Ethernet?
A. Transparent mode.
B. Frame mode
C. Channel mode
D. Packet mode.
E. Tunnel mode.
Correct Answer: B
QUESTION 58
What IOS commands display MPLS label mapping on an LSR?
A. Show mpls ldp parameters
B. Show mpls ldp bindings
C. Show mpls forwading-table
D. Show mpls ldp discovery
E. Show mpls ldp neighbor detail
Correct Answer: B
QUESTION 59
Forwarding Equivalence Class (FEC) corresponds to which four of these? (Choose four).
A. Layer 2 circuits (ATM, FR, PPP, HDLC, Ethernet
B. Groups of addresses/sites-VPN
C. IPSEC Encryption Algorithm
D. A bridge/switch instance-VSI
E. Tunnel interface-traffic engineering
Correct Answer: ABDE
QUESTION 60
Which two statements about forwarding equivalence class (FEC) are true? (Choose two)
A. FEC might correspond to a destination IP subnet, but it might also correspond to any traffic class that the edge LSR considers significant.
B. FEC is a group of IP packets that is forwarded over a different path, but with the same forwarding treatment.
C. FEC is a group of IP packets that is forwarded over the same path, and with the same forwarding treatment.
D. FEC is a group of IP packets that is forwarded over a different path, but with the different forwarding treatment.
E. FEC is a group of IP packets that is forwarded over the same path, but with a different forwarding treatment.
Correct Answer: AC
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