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单选题Which enhancement w as added to IGMP version 3?（）A membership query messageB membership report messageC leave group messageD source filteringE destination filtering
题目
membership query message
membership report message
leave group message
source filtering
destination filtering
相似问题和答案
第1题：
A. The router sent an IGMP version 2 query out interface Ethernet1 at multicast address 224.0.0.1.
B. Router RTA received an IGMP report version 1 from host 192.168.9.1.
C. Reverse Path Forwarding (RPF) is ena bled for 192.168.9.4.
D. Reverse Path Forwarding (RPF) is enabled for 224.0.1.40.
E. The IP multicast groups are 224.0.0.1, 224.0.1.40, and 239.255.0.1.
F. IP PIM RP mapping is static.
第2题：
A. There are three IGMP modes: dense mode, sparse mode, and sparse - dense mode
B. IGMP is used to register individual hosts with a multicast group
C. IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic from
D. IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1
E. IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRP
F. IGMP snooping ru ns on Layer 3 routers
第3题：
A.[Quidway-interface-vlan1]pim dm;
B.[Quidway-interface-vlan1]igmp enable;
C.[Quidway-interface-vlan1]igmp version 2;
D.[Quidway]multicast routing-enable。
第4题：
Which three statements are true about the Internet Group Management Protocol (IGMP)? （）
- A、There are three IGMP modes: dense mode, sparse mode, and sparse - dense mode
- B、IGMP is used to register individual hosts with a multicast group
- C、IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic from
- D、IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1
- E、IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRP
- F、IGMP snooping ru ns on Layer 3 routers
正确答案:B,C,D
第5题：
Which IOS QoS enhancement was created to address scalability and bandwidth guaranteeissues？（）
- A、 DiffServ
- B、 IntServ
- C、 RSVP
- D、 WFQ
正确答案:C
第6题：
A. IGMP snooping and Cisco Group Membership Protocol (CGMP) can be used simultaneously on a switch.
B. IGMP snooping a nd Cisco Group Membership Protocol (CGMP) were developed to help Layer 3 switches make intelligent forwarding decisions on their own.
C. IGMP snooping examines IGMP join/leave messages so that multicast traffic is forwarded only to hosts that sent an IG MP message toward the router.
D. IGMP snooping is an IP multicast constraining mechanism for Layer 2 switches.
E. IGMP snooping is enabled with the ip multicast - routing global configuration command.
第7题：
A. membership query message
B. membership report message
C. leave group message
D. source filtering
E. destination filtering
第8题：
A.igmp version 1
B.igmp version 2
C.igmp version 3
D.以上都对
第9题：
Which version of NTP was the first to support cryptographic authentication?（）
- A、Version 1
- B、Version 5
- C、Version 4
- D、Version 3
正确答案:D
第10题：
Which three statements about the features of SNMPv2 and SNMPv3 are true?（）
- A、SNMPv3 enhanced SNMPv2 security features
- B、SNMPv3 added the Inform protocol message to SNMP
- C、SNMPv2 added the Inform protocol message to SNMP
- D、SNMPv3 added the GetBulk protocol messages to SNMP
- E、SNMPv2 added the GetBulk protocol message to SNMP
- F、SNMPv2 added the GetNext protocol message to SNMP
正确答案:A,C,E