问题：多选题Which three statements describe the User Datagram Protocol (UDP)?（）AUDP provides delivery notification and error checking mechanisms.BUDP is faster than the Transmission Control Protocol (TCP).CUDP application examples include DNS and VoIP.DUDP is an application layer protocol.EUDP uses a best effort delivery approach.
问题：多选题Which two are correct when configuring an IP address for a Fast Ethernet interface?（）Aset interfaces fe-0/0/0 address 10.1.1.1/24Bset interfaces fe-0/0/0.0 family inet address 10.1.1.1/24Cset interfaces fe-0/0/0.0 address 10.1.1.1/24Dset interfaces fe-0/0/0 unit 0 family inet address 10.1.1.1/24
问题：单选题A routing policy has three terms and the first term of the policy does not contain a terminating action. What will become of the routes after they have been evaluated by the first term?（）A In the absence of a terminating action, all routes are accepted.B The route will be evaluated by the second term in the policy.C The default action will be applied.D In the absence of a termination action, all routes are rejected.
问题：单选题When is the BA Classifier engaged for identifying the forwarding class of traffic in a Juniper router?（）A after a packet is identified by a multifield classifierB after the traffic passes though a shaperC prior to ingress policing of trafficD while the packet is stored in the switching fabric of the router
问题：单选题Which statement is true about the internal link between the Routing Engine and the Packet-Forwarding Engine?（）A It is only used for exception traffic.B It is an FE link called fxp2.C It is rate-limited to avoid DDOS attacks.D It is only used to send the forwarding-table from the Routing Engine to the Packet-Forwarding Engine.
问题：单选题Which type of traffic will cause Policed Discards errors on an interface on a JUNOS device?（）A Traffic that does not match any route in the forwarding table.B Traffic that exceeds the bandwidth of the interface.C Traffic of unsupported protocols on that interface.D Traffic arriving on unknown virtual-circuits on that interface.
问题：单选题In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?（）A collisions on the full-duplex side; runts on the half-duplex sideB collisions on the full-duplex side; collisions on the half-duplex sideC collisions on the half-duplex side; framing errors on the full-duplex sideD collisions on the half-duplex side; giants on the full-duplex side
问题：单选题Rewrite rules are used in which CoS scenario?（）A When a single device is configured to provide differentiated services.B When multiple devices in a network are configured to use CoS to provide differentiated services.C When a device is used to connect to another autonomous system.D When CoS is used to classifiy traffic as low priority.
问题：单选题When troubleshooting ATM, which command would allow you to test reachability from one side of an ATM cloud to the other?（）A ping atm vci 0.100 interface at-0/1/0 end-to-endB ping atm vci 0.100 interface at-0/1/0 circuitC ping atm vci 0.100 interface at-0/1/0 far-endD ping atm vci 0.100 interface at-0/1/0 final-hop
问题：多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.DIf a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.