Router HW enables OSPF and router HW has the role of ABR and is configured with abr-summary, so which class LSA Will it be aggregated?( Multi-select) (confirmed).

• A.3 ?LSA
• B.5 ?LSA
• C.2 ?LSA
• D.4 ?LSA
• E.1 ?LSA

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The BSR/RP mechanism described below describes the correct determination ?( Multiple choice questions).
There can be multiple C-BSRs in the

• A.A C-BSR can also collect C-RP information by receiving C-RP packets
• B.PIM-SM domain, but only one BSR can be elected.
• C.BSR advertises BSR and C-RP information to all routers in the PIM-SM domain via flood bootstrap messages
• D.BSR collects C-RP information by receiving packets of C-RP

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Regarding the description of the security level of the configured firewall security zone, the error is ?

• A.Two security zones are not allowed to configure the same security level in the same system
• B.For newly created security zones, the system defaults to a security level of 1
• C.You can only set the security level for a custom security zone
• D.Once the security level is set, it is not allowed to change

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If you have a LOCAL AREA NETWORK running 8021D Spanning Tree Protocol, the non-root switch does not receive which parameter under the root switch?

• A.Hold time
• B.Forward delay
• C.Root cost
• D.MaxAge
• E.Hello time

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A medium-sized campus network manages the network through the SNMP protocol, and the campus is highly network-safe, so which version of SNMP is recommended for management?

• A.SNMPv1
• B.All versions are available to implement
• C.SNMPV3
• D.SNMPv2C

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