4A0-C04テスト問題練習試そう！2022年に更新された300問あります
更新された2022年01月プレミアム4A0-C04試験エンジンPDFで今すぐダウンロード！無料更新された300問あります
質問 42
Click the exhibit button.
If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 will receive two routes to
192.168.3.0/24. What will be the preference of these two routes? Assume that all IS-IS routers are L1/L2 capable and are in the same area. Choose two answers.
- A. The OSPF external preference
- B. The OSPF internal preference
- C. The IS-IS Level 2 internal preference
- D. The IS-IS Level 2 external preference
- E. The IS-IS Level 1 internal preference
- F. The IS-IS Level 1 external preference
正解: A,E
質問 43
What is the function of the Cluster_List attribute?
- A. It is used to identify the route reflectors within an AS.
- B. It is used for loop detection within the same cluster.
- C. It is used for loop detection in a confederation.
- D. It is used for loop detection between clusters.
正解: D
質問 44
Click the exhibit.
The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?
- A. "oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"
- B. "ping 192.168.20.1"
- C. "ping 10.10.10.6" (router R6's system IP)
- D. "oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"
正解: A
質問 45
What kind of attribute is the aggregator?
- A. Well-known discretionary
- B. Optional non-transitive
- C. Optional transitive
- D. Well-known mandatory
正解: C
質問 46
Click on the exhibit.
An LSP traverses R1-R2-R4-R6 and one-to-one fast reroute with link protection is enabled. All links have the same cost. Which of the following about DMP and MP is TRUE?
- A. R3 and R5 become DMPs; R6 becomes MP.
- B. R3, R5, and R6 become DMPs; R4 becomes MP.
- C. R3 and R5 become DMPs; R4 becomes MP.
- D. R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.
正解: A
質問 47
Which of the following about IS-IS Traffic Engineering on an Nokia 7750 SR is FALSE?
- A. Traffic engineering information is stored in the opaque database,
- B. Traffic engineering must be enabled on all IP/MPLS routers along the LSP path.
- C. Traffic engineering is required for constraint-based LSPs.
- D. Traffic engineering information is carried in the extended TLVs.
正解: A
質問 48
Which regular expression will match the AS Path of a route originating in remote AS 65100?
- A. ".* 65100.*"
- B. ".+ 65100"
- C. "65100"
- D. "65100.+"
正解: B
質問 49
Which of the following devices assumes the active role during the establishment of an LDP session?
- A. The peer with the lower transport address.
- B. The peer with the higher physical address.
- C. The peer that generated the first Hello message.
- D. The peer with the higher transport address.
- E. The peer with the lower physical address.
正解: D
質問 50
A BGP session is in OpenConfirm state. Which of the following messages must be received to transition to Established state?
- A. Notification
- B. Open
- C. Keepalive
- D. Update
正解: C
質問 51
Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?
- A. In multi-access networks, a DR and BDR are elected only if the subnet masks on the router interfaces are less than /30
- B. In multi-access networks, a DR and BDR are elected only if there are more than two routers connected to the network segment.
- C. In multi-access networks, a DR and BDR are elected. The DR sends link-state advertisements describing the network.
- D. In multi-access networks, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.
正解: C
質問 52
Which of the following is a characteristic of a VPLS?
- A. Multiple VPLSes on the same router share a single MAC FDB.
- B. An additional T-LDP session is required between PEs for each additional VPLS that is provisioned.
- C. When a new site is added, all the existing sites need to be shutdown and re-provisioned.
- D. All SAPs of a VPLS belong to the same broadcast domain.
正解: D
質問 53
What type of OSPF router generates a type 2 LSA?
- A. Area Border Router
- B. All routers within an OSPF area.
- C. Autonomous System Boundary Router
- D. Designated Router
正解: D
質問 54
Click the exhibit.
The two PEs are providing 6VPE and IPv4 VPRNs. The core network is IPv4/MPLS. Which of the following is the BGP family configuration for the MP-BPG on the PEs?
- A. family vpn-ipv4 vpn-ipv6
- B. family ipv6 vpn-ipv6
- C. family vpn-ipv4ipv6
- D. family ipv4 ipv6
正解: A
質問 55
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?
- A. Router R3 generates a type 4 LSA that is flooded to areas 0 and 2.
- B. Router R3 generates a type 4 LSA that is flooded to area 0, and router R6 generates a type 4 LSA that is flooded to area 2.
- C. Router R3 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
- D. Router R1 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
正解: B
質問 56
Click the exhibit.
Given the following configuration for router R1, what is the expected Next Hop for prefix 192.168.1.0/27 as seen on router R2?
- A. 10.16.10.1
- B. 10.0.2.1
- C. 10.16.10.3
- D. 10.0.2.2
正解: D
質問 57
On an Nokia 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?
- A. vc-type dotlq
- B. vc-type null
- C. vc-type vlan
- D. vc-type ether
正解: D
質問 58
Click on the exhibit.
An LDP-over-RSVP tunnel is established between PE-1 and PE-2. Which of the following is NOT required to protect the LDP-over-RSVP tunnel?
- A. PE-1 requires fast reroute enabled on all RSVP-TE LSPs.
- B. ABR-1 requires T-LDP sessions to all ABRs in area 0.
- C. PE-1 requires T-LDP sessions to both ABR-1 and ABR-2.
- D. PE-1 requires a full mesh of RSVP-TE LSPs to all routers in area 1.
正解: D
質問 59
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?
- A. Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
- B. Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.
- C. Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.
- D. Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
正解: B
質問 60
Which of the following types of networks are supported on an Nokia 7750 SR for OSPF? Choose two answers.
- A. Point-to-multipoint
- B. Non-broadcast multi-access
- C. Broadcast
- D. Point-to-point
正解: C,D
質問 61
Which of the following about LSP path configuration on an Nokia 7750 SR is TRUE?
- A. The path must define a tunnel destination IP address.
- B. The path may be used multiple times in a single LSP.
- C. The path must include at least one hop.
- D. The path may be used for multiple LSPs.
正解: D
質問 62
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