單項選擇題What authentication type is used by SNMPv2?（）

A.HMAC-MD5
B.HMAC-SHA
C.CBC-DES
D.community strings


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1.多項選擇題What are two enhancements that OSPFv3 supports over OSPFv2? （）

A.It requires the use of ARP.
B.It can support multiple IPv6 subnets on a single link.
C.It supports up to 2 instances of OSPFv3 over a common link.
D.It routes over links rather than over networks.

2.多項選擇題What are three factors a network administrator must consider before implementing Netflow in the network?（）

A.CPU utilization
B.where Netflow data will be sent
C.number of devices exporting Netflow data
D.port availability
E.SNMP version
F.WAN encapsulation

3.多項選擇題What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow?（）

A.source IP address
B.source MAC address
C.egress interface
D.ingress interface
E.destination IP address
F.IP next-hop

4.單項選擇題What command visualizes the general NetFlow data on the command line?（）

A.show ip flow export
B.show ip flow top-talkers
C.show ip cache flow
D.show mls sampling
E.show mls netflow ip