关于国债基金，下列说法正确的有()。

Which of the following is not a format for a graphical image file？

A、BMP file

B、GIF file

C、JPG file

D、AVI file

A. Bridges are faster than switches because they have fewer ports.

B. A switch is a multiport bridge.

C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.

D. A bridge will forward a broadcast but a switch will not.

E. Bridges and switches increase the size of a collision domain.

Which of the following about the tabloids is not true？

A.They are big format newspapers.

B.They are often called “the gutter press ”.

C.They mainly deal in scandals and gossip about famous people.

D.They carry stories with colour photos and catchy headlines.

A．jd. com

B．dangdang. com

C．alibaba

D．amazon. cn

Which of the following is false？

A．Broadcast. com was taken over by Yahoo in spring 1999.

B．E-tailers will compete with TV broadcasters.

C．Internet sites will become more TV-acceptable.

D．Future TV sets will become simpler technologically.

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. use a Layer 2 link between distribution switches

B. use a Layer 3 link between distribution switches

C. use a redundant link to the core

D. use a Layer 3 link between distribution switches with route summarization

A．MSTSC

B．ACPI

C．GDI

D．MSCONFIG

As to the format of the exam, which of the following statements is true？

A．It will include multiple-choice questions.

B．It will consist of three multiple-choice questions and five essay questions.

C．Students will have to answer all the essay questions.

D．Students will be required to answer three of the five questions.