CMS专题
多选题Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）ACisco NX-OS Software does not support PIM dense mode.BThe command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast con
题目
Cisco NX-OS Software does not support PIM dense mode.
The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch.
PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command.
Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance.
The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.
参考答案和解析
相似问题和答案
第1题：
A. includes three design levels
B. incorporates products and technologies into enterprise, service provider, and commercial systems
C. extends the value of designs through a sustained development plan
D. does not factor customer input design process
E. facilitates faster and more reliable customer deployments
F. incorporates a narrow range of technologies and products
第2题：
Which two of these statements best describe the benefits of WPAv2？ （Choose two.）（）
- A、 SSID broadcast prevention
- B、 man-in-the-middle attack protection
- C、 cost reduction through software upgrades in all existing hardware
- D、 dynamic key generation
- E、 RF jamming prevention
正确答案:B,D
第3题：
A.UDP provides delivery notification and error checking mechanisms.
B.UDP is faster than the Transmission Control Protocol (TCP).
C.UDP application examples include DNS and VoIP.
D.UDP is an application layer protocol.
E.UDP uses a best effort delivery approach.
第4题：
Which three IP multicast address related statements are true？ （Choose three.） （）
- A、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live （TTL） greater than 1.
- B、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.
- C、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and IGMPv3.
- D、Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1 and 238.1.1.1 could not be used together.
- E、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA
- F、The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses.
正确答案:C,E,F
第5题：
Which of these is the best way to convince a prospect of the benefits of the S-Series？（）
- A、 show them independent tests and reviews
- B、 describe the theory of operation and system internals
- C、 give a Microsoft PowerPoint presentation
- D、 give a demonstration that could lead to an evaluation
正确答案:D
第6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7题：
Which three IP multicast address related statements are true?（）
- A、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3
- B、Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her
- C、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1
- D、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers
- E、The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses
- F、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
正确答案:A,E,F
第8题：
A.A
B.B
C.C
D.D
E.E
第9题：
Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）
- A、 Cisco NX-OS Software does not support PIM dense mode.
- B、 The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch.
- C、 PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command.
- D、 Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance.
- E、 The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.
正确答案:A,C,D
第10题：
Which three statements describe the User Datagram Protocol (UDP)?（）
- A、UDP provides delivery notification and error checking mechanisms.
- B、UDP is faster than the Transmission Control Protocol (TCP).
- C、UDP application examples include DNS and VoIP.
- D、UDP is an application layer protocol.
- E、UDP uses a best effort delivery approach.
正确答案:B,C,E