With regard to syntax, Chinese does not require many conjunctions or transitions words to bridge the gap in meaning. The reader can infer it without much difficulty.

A . RSVP is a required configuration to support conference calls without voice packet loss.  B . The QoS configuration on the 831 router must always provision sufficient bandwidth for two RTP streams.  C . Call admission control is an issue only when using hardware DSP resources.  D . When using the conference call features on a 7960 IP phone, only one RTP stream is present regardless of how many extensions are on the conference.

A . A device waits for an electronic signal before transmitting. B . A device listens and waits until the media is not busy before transmitting. C . All devices on an Ethernet segment see data that passes on the network medium. D . Only the sender and the receiver devices see data that passes on the network medium. E . Ethernet networks allow you to configured devises with higher transmission priority.

A . (1) only B . (2) only C . both (1) and (2) D . neither (1) or (2)

A .  The IEEE 802.1Q frame format adds a 4 byte field to a Ethernet frame B .  The packet is encapsulated with a 26 byte header and a 4 byte FCS C .  The protocol uses point-to-multipoint connectivity D .  The protocol uses point-to-point connectivity E .  The IEEE 802.1Q frame uses multicast destination of 0x01-00-0c-00-00 F .  The IEEE 802.1Q frame retains the original MAC destination addre

A . during low loads B . after proper oil viscosity is reached C . during starting D . after cleaning filter

A . Oil is discharged from the impeller through the outlet B . Gravity causes the oil to flow toward the discharge C . The self-priming feature of the centrifugal pump enables it to draw its own suction as it starts D . The discharge capacity varies directly with the speed of the impeller

A . certifies B . confirms C . contains D . construe

A . Either the -a or flag -b may be used, but not both. B . If the flag -a is used then the flag -b also must be used. C . One of the -a or -b flags must be used, but not both at the same time. D . Both the flags may be used together, but neither are mandatory.

A . termination devices need routable addresses inside the VPN B . termination devices need not routable addresses inside the VPN C . IGP routing protocols will update their routing tables over anIPsec VPN D . addressing designs need to allow for summarizatio

A . the third largest　 B . the fourth largest C . the fifth largest　 D . the sixth largest

A . implementing the safety and environmental protection policy of the Company B . motivating the crew in the observation of that policy C . designing the procedures for internal audits and management reviews D . issuing appropriate orders and instructions in a clear and simple manner

A . Switches are primarily software based while bridges are hardware based. B . Both bridges and switches forward Layer 2 broadcasts. C . Bridges are frequently faster than switches. D . Switches typically have a higher number of ports than bridges. E . Bridges define broadcast domain while switches define collision domains. F . Both bridges and switches make forwarding decisions based on Layer 2 addresses.

A . The configuration to define Route-Distinguisher is Ip vrf bulle Rd 1：1 B . A route distinguisher can be imported and exported to and from a VRF C . Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm. D . Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.

A .  termination devices need routable addresses inside the VPN B .  termination devices need not routable addresses inside the VPN C .  IGP routing protocols will update their routing tables over an IPsec VPN D .  addressing designs need to allow for summarizatio

A . 正确 B . 错误

A．complete indifference. B．qualified acceptance. C．skeptical amusement. D．perplexed astonishment.

A．positive B．negative C．indifferent D．critical

A、funneled B、 put C、 converged D、 crowded

A．Neutrino astronomy will supersede all present forms of astronomy. B．Neutrino astronomy will be abandoned if the DUMAND project fails. C．Neutrino astronomy can be expected to lead to major breakthroughs in astronomy. D．Neutrino astronomy will disclose phenomena that will be more surprising than past discoveries. 此题为多项选择题。

Which of the following is correct with regard to stocks？ (i) Stock-outs arise when too little stock is held. (ii) Safety stocks are the level of units maintained in case there is unexpected demand. (iii) A reorder level can be established by looking at the maximum usage and the maximum lead-time. A、(i) and (ii) only B、(i) and (iii) only C、(ii) and (iii) only D、(i), (ii) and (iii)