These two companies have often been ________ of new marketing techniques.

A、engaged in fishing in a traffic lane B、servicing a submarine cable C、towing another D、engaged on pilotage duty

A .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by encapsulating a  false 802.1Q header on a frame and causing traffic to be delivered to the wrong VLAN. B .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  message with a forged identity to a transmitting host. C .  MAC address flooding is an attempt to force a switch to send all information out every port byoverloading the MAC address table. D .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  packet that contains the forged address of the next hop router. E .  MAC address flooding is an attempt to redirect traffic to a single port by associating that port  with all MAC addresses in the VLAN.

A . VTP version 2 supports Token Ring VLANs B . VTP version 2 allows VLAN consistency checks C . VTP version 2 allows active redundant links when used with spanning tree D . VTP version 2 reduces the amount of configuration necessary E . VTP version 2 saves VLAN configuration memory

A .  Attacks are prevented by utilizing the port-security feature. B .  An end station attempts to gain access to all VLANs by transmitting Ethernet frames in the  802.1q encapsulation. C .  Configuring an interface with the switchport mode dynamic command will prevent VLAN  hopping. D .  An end station attempts to redirect VLAN traffic by transmitting Ethernet frames in the 802.1q  encapsulation. E .  Configuring an interface with the "switchport mode access" command will prevent VLAN  hopping.

A . An update packet with init flag set from a known， already established neighbor relationship was received by one of the routers. B . The ARP cache was cleared. C . The counters were cleared. D . The IP EIGRP neighbor relationship was cleared manually.

A . Trust boundaries are configured in the core of the network to provide the most efficient  forwarding based upon QoS markings， B . Setting trust boundaries at the edge of the network allows intermediate hop devices to  administer QoS policies without detailed packet identification. C . Trust boundaries are used to determine which QoS mechanism will be applied to the traffic.   D . At the trust boundaries， the untrusted traffic will be marked with a new QoS value appropriate  for the policy in place at the point where the traffic entered the campus network.   E . Trust boundaries define the firewall rules for QoS admission into a network.

A . SELECT ENAME FROM EMP WHERE SYSDATE-HIRE_DATE > 5; B . SELECT ENAME FROM EMP WHERE HIRE_DATE-SYSDATE > 5; C . SELECT ENAME FROM EMP WHERE (SYSDATE-HIRE_DATE)/365 > 5; D . SELECT ENAME FROM EMP WHERE (SYSDATE-HIRE_DATE)* 365 > 5

A . HMC command line B . Uncapped processors C . Partition Load Manager D . Enterprise Workload Manager

A . An update packet with init flag set from a known， already established neighbor relationship was received by one of the routers. B . The ARP cache was cleared. C . The counters were cleared. D . The IP EIGRP neighbor relationship was cleared manually.

A . SELECT ENAME FROM EMP WHERE SYSDATE-HIRE_DATE >5; B . SELECT ENAME FROM EMP WHERE HIRE_DATE-SYSDATE >5; C . SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)/365 >5; D . SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)*/365 >5

A .  In the autonomous access point solution， control is provided by the WLAN controller. B .  In the lightweight access point solution， WLAN management is provided by the WLAN Control  System （WCS）. C .  In the autonomous access point solution， control is provided by the WDS （Wireless Domain  Services）. D .  Cisco Aironet autonomous access points cannot be supported by the Cisco Unified Wireless  Network. E .  Ii the lightweight access point solution， WLAN management is provided by the WLAN Solution  Engine （WLSE）. F .  Cisco Aironet lightweight access points cannot be supported by the Cisco Unified Wireless  Network.

A . after the subscriber is unavailable for 10 minutes B . when the subscriber is available C . after the subscriber is unavailable for after an hour D . are available until the specified time elapses E . are expired instantly

A . An update packet with init flag set from a known， already established neighbor relationship was received by one of the routers. B . The ARP cache was cleared. C . The counters were cleared. D . The IP EIGRP neighbor relationship was cleared manually.

A . An update packet with init flag set from a known， already established neighbor relationship was received by one of the routers. B . The counters were deleted. C . The ARP cache was removed. D . The IP EIGRP neighbor relationship was cleared manually.

A . VLAN B . Virtual Ethernet C . Virtual I/O Server Support D . Capped and Uncapped Partitio

A .  It supports eight different data rates. B .  It is fully backward compatible with 802.11b C .  It provides the same network throughput with 802.11b clients， 802.11g clients， or a mixed  environment where both clients are present. D .  It is only compatibly with the 11 Mbps 802.11b transfer rate. E .  It has three non-overlapping channels in its channel options.

A.I could not B.Yes.I think so C.I'm afraid so D.I'm afraid not

The summer holidays are the best time of the year in England for ___21___ children. The weather is usually so good that they can spend most of their time playing in the garden, or playing in the forests and fields if they live in the ___22___. If they live in big towns, they can usually go to parks to play. In England, not only can the rich people take their children to the seaside. If a factory worker or a bus driver, a street cleaner or a farmer ___23___ to take his wife and children there, he can usually does this like them. Why do people like so much at the seaside？ It's the sea, the sand and the sun. Of course, there are a lot of new things to see, nice thing to eat and exciting things to do. And there are also the feeling of sand under one's feet, of sea water to one's skin, and the warm sun on one's back. Everybody can enjoy himself at the seaside. But when ___24___ comes, the summer holidays are over. Boys and girls ___25___ have a new school year. They will come back to their school again. 21)、 A.countries B.September C.will D.wants E.most 22)、 A.countries B.September C.will D.wants E.most 23)、 A.countries B.September C.will D.wants E.most 24)、 A.countries B.September C.will D.wants E.most 25)、 A.countries B.September C.will D.wants E.most

______

W: Well, let's settle up. What do I owe you for the meal？ Q: What does the woman mean？ (13) A．She will pay for the meal. B．She doesn't know what to do. C．She offers to pay her part. D．She doesn't know what she owes him.

A．less than the weighted average of the two individual variances B．greater than the weighted average of the two individual variances C．equal to the weighted average of the two individual variances D．less than or equal to average variance of the two weighted variances, depending on other information