To initiate testing，  which port does a Cisco IOS IP SLA sou

第1题：

What type of services are provided by the Cisco IOS gateways in a VoIP network with Cisco CallManager functionality？ （）

• A、Cisco IOS gateways provide services such as address translation and network access control for the devices on the networl
• B、Cisco IOS gateways provide services such as bandwidth management and accounting
• C、Cisco IOS gateways provide media termination and signal translation between the public switched telephone network （PSTN） and IP networks
• D、Cisco IOS gateways provide zone management for all registered endpoints in the network

第2题：

Which two statements best describe Cisco IOS IP SLA？（）

• A、only implemented between Cisco source and destination-capable devices
• B、statistics provided by syslog， CLI， and SNMP
• C、measures delay， jitter， packet loss， and voice quality
• D、only monitors VoIP traffic flows
• E、provides active monitoring
• F、provides passive monitoring

第3题：

第4题：

What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance?（）

• A、SNMP
• B、Netflow
• C、WCCP
• D、IP SLA

第5题：

Which Cisco IOS command displays the export VPN route target value of a VRF？（）

• A、show ip vrf all
• B、show ip vrf route-targets all
• C、show ip vrf summary
• D、show ip vrf interfaces
• E、show ip vrf detail
• F、show ip vrf

第6题：

Which IOS security feature is configured by the ip inspect inspection-name {in | out} command？（）

• A、IPsec site-to-site VPN
• B、Cisco AutoSecure
• C、Cisco IOS Firewall
• D、IPS

第7题：

Which four statements about an IP service level agreement （SLA） are true？ （）

• A、SLA responder knows type of operation， the port used， and duration.
• B、SLA responder inserts in and out timestamps in the packet payload.
• C、SLA sender and responder use the IP SLA Control Protocol to communicate with each other before
• D、SLA sender and responder communication can be encrypted.
• E、SLA sender and responder communication can be authenticated with MD5.

第8题：

When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）

• A、by snooping the CoS marking on the incoming frames
• B、by using RTP hello messages between the switch port and the Cisco IP Phone
• C、by using CDP
• D、by using DHCP snooping
• E、by snooping the incoming 802.1Q VLAN tag

第9题：

Which of the following statements are true concerning the command ip sla monitor responder typetcpconnect ipaddress 10.1.1.1 port 23？（Choose all that apply.）（）

• A、The command will initiate a probe with a destination IP address of 10.1.1.1
• B、The command is used on the IP SLA responder and the IP SLA source
• C、The command will allow only source address 10.1.1.1 to source probes
• D、The command will initiate a probe with a destination Telnet port
• E、The command is used to make the router a responder
• F、The command will initiate a probe with a source port of 23

第10题：

Which of these commands can you use to show if an operational Catalyst switch port is set for autonegotiation of speed and duplex when running Cisco IOS software?（）

• A、show port network
• B、 show running-config
• C、show controllers Ethernet-controller
• D、 show interfaces