A Layer 2 switch supports multiple types of Ethernet interfaces. Similar to a trunk interface, a hybrid interface allows data frames from multiple VLANs to pass through. In addition, you can determine whether data frames from a VLAN sent out from a hybrid interface are tagged or untagged.
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 2:
To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non- backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.
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:
According to BGP route selection rules, the route with the higher Local_Pref is preferred.
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 4:
The AS_Path attribute is an important BGP attribute used for route selection. Which of the following statements are true about this attribute?
A. This attribute is a well-known discretionary attribute that must be identified by all BGP routers.
B. This attribute can be used to prevent BGP routing loops.
C. BGP ignores AS_Confed_Sequence and AS_Confed_Set when calculating the AS_Path length.
D. When a route is advertised to an IBGP peer, the AS_Path remains unchanged.
正解:B,C,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
Which of the following statements is false about BFD?
A. In demand mode, after a BFD session is set up, the system does not periodically send BFD Control packets.
B. In asynchronous mode, two systems periodically exchange BFD Control packets at the negotiated interval. If one system does not receive any BFD Control packets from the other within the detection interval, the BFD session is declared down.
C. The asynchronous mode does not support the echo function.
D. The asynchronous mode is the primary BFD operating mode.
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
On an OSPF network, Type 7 LSAs can be generated only by ASBRs in NSSAs or stub areas and describe AS-external routes.
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 7:
As shown in the figure, SWA, SWB, and SWC run the Rapid Spanning Tree Protocol (RSTP). What are the roles of SWB's GE0/0/2 and SWC's GE0/0/1?

A. Root port, designated port
B. Backup port, root port
C. Alternative port, backup port
D. Backup port, alternative port
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
若*舞 -
H12-821_V1.0試験によく出題される、最重要用語や問題傾向を掲載しているから気に入ってます。そして早速試験に受けで、ほんとに合格できましたよ!嬉しいすぎます。