The figure shows the networking application of RRPP. Customer LAN switches SWA, SWB, SWC, and SWD form RRPP ring main ring 1, switches SWB, SWC and SWE form sub-ring 2, and switches SWB, sWC and sWF form sub-ring 3. If Switch SWE is the master node of sub-ring 2, SWF is the master node of sub-ring 3, and switch SWB is the edge node of sub-ring 2 and sub-ring 3. In order to eliminate the defect of broadcast storm under specific conditions of RRPP dual-homing networking, the above information Can know

A. If the link between the switch SWA and the switch SWD is Down, the edge port on the switch SWB will be blocked
B. If the link between switch SWA and switch SWB is Down, and the link between switch SWA and switch SWD is Down, the edge port on switch SWB will be blocked
C. If the link between the switch SWB and the switch SWC is Down, the edge port on the switch SWB will be blocked
D. If the link between the switch SWA and the switch SWB is Down, and the link between the switch SWB and SWC is Down, the edge port on the switch SWB will be blocked
正解:D
質問 2:
When implementing network security management measures in a campus network, which of the following are network access control technologies or measures deployed for illegal access to network resources
A. Portal authentication
B. Add IAS equipment (IllegalAccess System)
C. Deploy endpoint access defense
D. Add firewall
正解:A,C,D
質問 3:
Regarding the basic concepts of MSTP, the correct statement is
A. CST refers to a spanning tree between regions, which is obtained by running STP/RSTP between MST regions
B. When CST is running, the MST region is regarded as a logical switch, and the root bridge of CST is the domain to which the common root belongs
C. By default, all VLANs in the MST domain are mapped to IST
D. IST is a spanning tree in the MST region, and the instance number corresponding to IST is 0
正解:A,B,C,D
質問 4:
Regarding the comparison of unicast, multicast and broadcast, there are correct
A. Compared with unicast, multicast can reduce the burden of the source
B. Compared with broadcast, multicast can improve link utilization
C. Compared with broadcast, multicast can reduce the burden of the source
D. Compared with unicast, multicast can reduce link load
正解:A,B,D
質問 5:
Which of the following descriptions about remote port mirroring are correct?
A. The reflection port of remote port mirroring is essential
B. Remote port mirroring must include the mirror source and destination switch
C. The ProbeVLAN of remote port mirroring should prohibit MAC address learning
正解:B,C
質問 6:
In the switching network as shown in the figure, all three switches only have the default VLAN1, the interconnection ports of the three switches are trunks, and all VLANs are allowed to pass, and the three switches have the global and port GVRP functions enabled. VLAN 10 is created on the switch SWA, VLAN 20 is created on the SWC, and the GVRP registration mode of the Ethemet1/0/1 port is set to Fixed on the switch SWA, and the status information of each Trunk port is checked on the three switches. The correct one is displayed below (Choose one or more)

A. [SWB]display interface Ethernet 1/0/2 Ethernetl/0/2 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10, 20 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
B. [SWC]display interface Ethernet 1/0/1 Ethernetl/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10, 20 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
C. [SWA]display interface Ethernet 1/0/1 Ethernet1/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10, 20 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
D. [SWB]display interface Ethernet 1/0/1 Ethernetl/0/1 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 10, 20 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q
正解:B
Kubo -
先週GB0-371-ENU認定資格を取得しました。Pass4Test様がかなり実力をつけてくださったおかげだと思います。
こころから感謝します。