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質問 1：
In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.
A. TRUE
B. FALSE
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
The native AC function allows an agile switch to integrate AC capabilities, achieving wired and wireless convergence. The agile switch centrally manages wired and wireless service traffic.
A. TRUE
B. FALSE
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
正解：
SPT
Explanation:
Routing Entries in PIM
(S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
(S, G) entries are used in both PIM-DM and PIM-SM modes.
PIM-DM and PIM-SM Modes
InPIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist.
(S, G) entries represent source-specific paths created after the flooding stage.
InPIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
HCIP-Datacom-Core Reference
The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
質問 4：
A large enterprise deploys WLAN in VRRP HSB mode to ensure network reliability.
In this networking mode, which of the following data backup modes are supported?(Select all that apply)
A. Batch backup
B. Cloud backup
C. Scheduled synchronization
D. Real-time backup
正解：A,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links.
Which of the following configurations are mandatory?
A. Configure the local discriminator of a BFD session.
B. Enable BFD globally.
C. Configure a multicast IP address for BFD.
D. Configure the remote discriminator of a BFD session.
正解：A,B,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
Which of the following statements regarding an IP prefix are true?
A. An IP prefix filter cannot be used to filter data packets.
B. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
C. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
D. An IP prefix filter can be used to filter data packets.
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
A router performs a lookup in its FIB table for a packet. If the tunnel ID in the matching entry is 0, the packet needs to be forwarded through a tunnel, such as an MPLS tunnel.
A. TRUE
B. FALSE
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.
A. TRUE
B. FALSE
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
The native AC function allows an agile switch to integrate AC capabilities, achieving wired and wireless convergence. The agile switch centrally manages wired and wireless service traffic.
A. TRUE
B. FALSE
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
正解：
SPT
Explanation:
Routing Entries in PIM
(S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
(S, G) entries are used in both PIM-DM and PIM-SM modes.
PIM-DM and PIM-SM Modes
InPIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist.
(S, G) entries represent source-specific paths created after the flooding stage.
InPIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
HCIP-Datacom-Core Reference
The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
質問 4：
A large enterprise deploys WLAN in VRRP HSB mode to ensure network reliability.
In this networking mode, which of the following data backup modes are supported?(Select all that apply)
A. Batch backup
B. Cloud backup
C. Scheduled synchronization
D. Real-time backup
正解：A,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
An enterprise administrator wants to configure single-hop BFD to implement fast detection of direct links.
Which of the following configurations are mandatory?
A. Configure the local discriminator of a BFD session.
B. Enable BFD globally.
C. Configure a multicast IP address for BFD.
D. Configure the remote discriminator of a BFD session.
正解：A,B,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
Which of the following statements regarding an IP prefix are true?
A. An IP prefix filter cannot be used to filter data packets.
B. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
C. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
D. An IP prefix filter can be used to filter data packets.
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
A router performs a lookup in its FIB table for a packet. If the tunnel ID in the matching entry is 0, the packet needs to be forwarded through a tunnel, such as an MPLS tunnel.
A. TRUE
B. FALSE
正解：B
解説: (Pass4Test メンバーにのみ表示されます)
Aoki -
このH12-821_V1.0問題集のみの勉強、ひと月半ほどの勉強で一発合格できました。私はアルゴリズムという言葉の意味すらわからない初心者でしたが、この本のみ、勉強時間は会社の往復の電車の中、アプリバージョンで、平日１時間ちょいでした。