Which three protocols use UDP as a transport protocol by default?（）A、HTTPB、TFTPC、DNSD、SNMPE、SMTP

第1题：

Which three protocols use TLVs to carry attributes？（）

• A、Cisco Discovery Protocol
• B、Label Discovery Protocol
• C、Border Gateway Protocol
• D、OSPF
• E、RIP version 2

第2题：

A router learns about a remote network from EIGRP, OSPF, and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remote network（）。

• A、The router will use the static route.
• B、The router will use the OSPF route.
• C、The router will use the EIGRP route.
• D、The router will load balance and use all three routes.

第3题：

第4题：

In the use of 802.1X access control， which three protocols are allowed through the switch port  before authentication takes place？ （）

• A、 STP
• B、 CDP
• C、 EAP MD5
• D、 TACACS+
• E、 EAP-over-LAN
• F、 protocols not filtered by an ACL

第5题：

On router R1， which three of the following protocols will be forwarded to a host specified by the "iphelper-address" interface configuration command if the configuration has not been modified by the"ip forward-protocol udp" global configuration command？（）

• A、BOOTP
• B、TFTP
• C、ARP
• D、DNS
• E、proxy-ARP
• F、FTP
• G、CDP

第6题：

Which of the following protocols utilize UDP as the layer 4 transport mechanism?（）

• A、TACACS
• B、Telnet
• C、SMTP
• D、SNMP
• E、HTTP
• F、TFTP

第7题：

Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？ （）

• A、over leased lines， use the multilink ppp command to reduce latency and jitter， and to create Distributed Link Fragmentation and interleaving
• B、use the service-policy command to attach a traffic flow to an interface on the router
• C、use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses， and to guarantee admission of any flows
• D、use the policy-map command to define one or more QoS policies （such as shaping， policing， and so on） to apply to traffic defined by a class map
• E、use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value
• F、use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified

第8题：

Which of the following protocols use both TCP and UDP ports?（）

• A、FTP
• B、SMTP
• C、Telnet
• D、DNS
• E、All of the above

第9题：

Which three configuration tasks are required to successfully deploy NBAR to recognize TCP and UDP stateful protocols？（）

• A、Over leased lines，use the multilink ppp command to reduce latency and jitter，and to create Distributed Link Fragmentation and interleaving.
• B、Use the service-policy command to attach a traffic flow to an interface on the router.
• C、Use the ip rsvp bandwidth command to set a strict upper limit on the bandwidth NBAR uses，and toguarantee admission of any flows.
• D、Use the policy-map command to define one or more QoS policies （such as shaping，policing，and so on） to apply to traffic defined by a class map.
• E、Use the random-detect dscp command to modify the default minimum and maximum thresholds for the DSCP value.
• F、Use the class-map command to define one or more traffic classes by specifying the criteria by which traffic is classified.

第10题：

Which three of the following protocols will be forwarded to a host specified by the ip helper - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）

• A、BOOTP
• B、TFTP
• C、ARP
• D、DNS
• E、proxy - ARP
• F、FTP