思科认证考试
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 co
题目
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.
相似问题和答案
第1题：
A. Perform POST, locate configuration statements, apply configuration statements, locate Cisco IOS software, and load Cisco IOS software.
B. Locate Cisco IOS software, load Cisco IOS software, locate configuration statements, apply configuration statements, and perform POST.
C. Test software routines, POST, load configuration files, load Cisco IOS software, test Cisco IOS software.
D.POST, locate Cisco IOS software, load the Cisco IOS software, locate configuration statements, and apply configuration statements.
E. Load and test IOS, load configuration files, test software routines, POST.
第2题：
With Cisco NX-OS on a Cisco Nexus platform， which command shows memory usage， total processes， and CPU state？（）
- A、 show memory detailed
- B、 show process cpu sorted
- C、 show system resources
- D、 show hardware capacity
正确答案:C
第3题：
A. PIM sparse - dense mode and PIM dense mode require an RP on the network.
B. PIM sparse mode and PIM dense mode require an RP on the network.
C. PIM sparse mode interfaces are always added to the multicast routing table in a router.
D. PIM sparse mode and PIM sparse - dense mode require an RP on the network.
E. PIM dense mode interfaces are always added to the multicast routing table in a router.
F. PIM sparse - dense mode acts as PIM dense mode if an RP is not known.
第4题：
Which three options are prerequisites to configuring Cisco AutoOoS？（）
- A、Cisco Express Forwarding （CEF） must be globally enabled.
- B、Prior to the enabling of the Cisco AutoOoS feature， the bandwidth command must be applied on all interfaces or subinterfaces.
- C、After the enabling of the Cisco AutoOoS feature， the bandwidth command must be applied on all interfaces or subinterfaces .
- D、OoS policies must be enabled on all interfaces that will participate in the AutoOoS configuration.
- E、An IP address must be configured on all low-bandwidth interfaces （768 kb/s or lower） that will participate in the AutoOoS configuration
- F、An IP address must be configured on all interfaces that will participate in the AutoOoS configuration
正确答案:A,B,E
第5题：
If XYZ LTD needs to upgrade the Cisco IOS Software of a Cisco Router, Where is the best place to download the upgrade image file from?（）
- A、The best option is to download it from the Cisco TAC website
- B、The best option is to download it from the Cisco.Com Software support site
- C、The best option is to download it form the Cisco Advanced Services website
- D、The best option is to download it from the TFTP site on Cisco.com
正确答案:B
第6题：
Which two Cisco AutoQoS configuration statements are true？ （）
- A、the auto discovery qos command is supported on serial interfaces， subinterfaces， and virtual interfaces
- B、CEF must be enabled before configuring the auto discovery qos command
- C、the auto discovery qos privilege EXEC command must be configured on a router for several days to collect a sampling of data traffic
- D、the auto qos trust command relies on NBAR to provide VoIP classification
- E、the auto qos voip command configures the voip classification on routers and switches
正确答案:B,E
第7题：
Which statement describes the XML management interface in Cisco NX-OS Software？（）
- A、The following XML-based NETCONF operations are supported in NX-OS SoftwarE˙close-session copy-config delete-config and edit-config
- B、The following XML-based NETCONF operations are supported in NX-OS SoftwarE˙close-session copy-config edit-config and kill-session
- C、NX-OS Software supports up to a maximum of 16 concurrent XML sessions
- D、Only show commands are supported via the XML management interface in NX-OS Software
- E、The NX-OS implementation of the XML-based NETCONF requires SSH to be used for communication with the device
正确答案:E
第8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9题：
Which statement best describes ACL configuration using configuration session mode on Cisco Nexus switches？（）
- A、 The verify command will validate commands entered for syntax errors.
- B、 The save command will save the commands entered to the startup configuration.
- C、 The network administrator can perform a dry-run ACL configuration by verifying the configuration against the hardware and software resources available before applying it.
- D、 Configuration sessions can be saved and resumed at any time， even after upgrading NX-OS Software on the switch with ISSU.
- E、 Configuration sessions are global for all VDCs on the Nexus 7000.
正确答案:C
第10题：
The Cisco AutoQoS feature is being used throughout the Company VOIP network. Which three statements about this feature are true？（）
- A、The "mls qos" global configuration command must be entered before configuring AutoQoS.
- B、CEF must be enabled.
- C、The "no auto qos voip" command is used to disable Cisco AutoQos and revoke all configurations generated by Cisco AutoQos.
- D、CDP must be enabled.
- E、SNMP must be enabled.
正确答案:B,C,D