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What are the DSL-specific factors that require additional bandwidth when supporting Voice-over-IP over an IPSec VPN?（）
A . A voice packet is sent via multiple fixed-length cells; a portion of the last cell is padding, requiring more bandwidth.
B . ADSL typically uses PPPoE encapsulation, which adds additional overhead to each voice packet.
C . A voice packet is sent via multiple fixed-length cells; each cell has about 10% Layer-2 header overhead.
D . IPSec requires additional overhead for the header and hash.
E . ADSL carrier band requires additional bits to be carried over the wire to the DSL Access Concentrator.
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When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.
A . water in the tanks or pipelines
B . having the cargo too cool
C . explosion of vapors after discharge
D . inadequate ullage space
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What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?（）
A . 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.
B . 79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
C . 79xx IP phones do not mark voice packets with optimal DSCP values.
D . 79xx IP phones use a custom protocol to communicate CDP information to the switch.
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What are two characteristics of a managed Cisco Small Business Switch when recommending it over an unmanaged switch？ （）
A . end-user installed and supported
B . VLAN support
C . low initial cost
D . desktop installation
E . web-controlled GUI
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You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）
A . The crypto ACL number
B . The IPSEC mode （tunnel or transport）
C . The GRE tunnel interface IP address
D . The GRE tunnel source interface or IP address， and tunnel destination IP address
E . The MTU size of the GRE tunnel interface
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When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the link?（）
A . All defined VLANs are allowed on the trunk by default.
B . Each VLAN, or VLAN range, that is specified with the switchport mode command.
C . Each VLAN, or VLAN range, that is specified with the vtp domain command.
D . Each VLAN, or VLAN range, that is specified with the vlan database command.
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When a new trunk is configured on a 2950 switch, which VLANs by default are allowed over the trunk link?（）
A . no VLANs
B . all VLANs
C . only VLANs 1 - 64
D . only the VLANs that are specified when creating the trunk
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What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.
A . Jacob's ladder
B . Manropes
C . Heaving lines
D . All of the above
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When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?（）
A . Half-duplex Ethernet operates in a shared collision domain.
B . Half-duplex Ethernet operates in an exclusive broadcast domain.
C . Half-duplex Ethernet has efficient throughput.
D . Half-duplex Ethernet has lower effective throughput.
E . Half-duplex Ethernet operates in an exclusive collision domain.
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Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？ （）
A . EIGRP will not be accepted when configured on the actual RIPv2 routers.
B . OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
C . OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
D . RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
E . RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
F . OSPF database will have RIPv2 routes.
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Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？（）
A . EIGRP will not be accepted when configured on the actual RIPv2 routers.
B . OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
C . OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
D . RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
E . RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
F . OSPF database will have RIPv2 routes.
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More than half of the staff say they won’t feel(comfort) ______ when talking to their bosses.
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Easter Sunday is the only day of the year when tourists are allowed to wander over the White House lawn.
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The examples of the half-squatting, half-kneeling archers in Pit No. 2 are used to illustrate _________ .
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Why are almost half of the people quite afraid of DIY?
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More than half of the books written every year all over the world are translated into English.
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The examples of the half-squatting, half-kneeling archers in Pit No. 2 are used to illustrate what kind of suits people wore at that time.
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The half-squatting, half-kneeling archers in of Pit No. 2 wear suits of armor over their war robes.
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According to the poll mentioned, why are almost half of the people quite afraid of DIY?
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About half of new equity issues are preferred stock.
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They may not be the richest, but Africans remain the world's staunchest optimists. An annual survey by Gallup International, a research outfit, shows that, when asked whether this year will be better than last, Africa once again comes out on top. Out of 52,000 people interviewed all over the world, under half believe that things are looking up. But in Africa the proportion is close to 60% almost twice as much as in Europe.
Africans have some reasons to be cheerful. The continent's economy has been doing fairly well with South Africa, the economic powerhouse, growing steadily over the past few years. Some of Africa's long-running conflicts, such as the war between the north and south in Sudan and the civil war in Congo, have ended. Africa even has its first elected female head of state, in Liberia.
Yet there is no shortage of downers too. Most of Africa remains dirt poor. Crises in places like Cote d'Ivoire, Sierra Leone and Zimbabwe are far from solved. And the democratic credentials of Ethiopia and Uganda, once the darlings of western donors, have taken a bad knock. AIDS killed over gm Africans in 2005, and will kill more this year.
So is it all just a case of irrational exuberance？ Meril James of Gallup argues that there is, in fact, usually very little relation between the survey's optimism rankings and reality. Africans, this year led by Nigerians, are consistently the most upbeat, whether their lot gets better or not. On the other hand, Greece—hardly the worst place on earth—tops the gloom and doom chart, followed closely by Portugal and France.
Ms James speculates that religion may have a lot to do with it. Nine out of ten Africans are religious, the highest proportion in the world. But cynics argue that most Africans believe that 2006 will be golden because things have been so bad that it is hard to imagine how they could possibly get worse. This may help explain why places that have suffered recent misfortunes, such as Kosovo and Afghanistan, rank among the top five optimists. Moussaka for thought for those depressed Greeks.
The statistics are employed in the first paragraph so as to indicate sort of ______.
A．disparity
B．numbness
C．conformity
D．stagnation
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听力原文： An international children's charity says more than one-fourth of the children in Asia are living in absolute poverty and almost half of them are seriously deprived. In a report issued in Thailand, the group says that many Asian families are not benefiting from the region's booming economy and it has pledged $1 billion in aid over the next decade.
The charity group Plan International says 600 million Asian children are deprived of one of the seven basic needs used to define poverty, including food, safe water, shelter, health and education. And it says 350 million children, equivalent to the population of the European Union, are deprived of two or more basic needs, classifying them as absolutely poor.
The group's executive director, Tom Miller, compares these figures to those of the victims from the earthquake and tsunami that devastated parts of southern Asia eight months ago. "Those numbers are absolutely staggering. The world has focused very much on Asia through the tsunami. But in many ways, what we're talking about is, this is a silent tsunami that is happening every single day."
The group, basing its figures on United Nations statistics, says some Asian countries, like China and parts of Southeast Asia, have considerably reduced their numbers of poor children. But it says significant populations of poor people remain in isolated rural areas and among ethnic minorities.
According to the news, which of the following is not among the basic needs used to define poverty？
A．food
B．health
C．education
D．freedom
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She bought some bananas, half of______were over-ripe and had to be thrown away.
A．that
B．which
C．what
D．them
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When you drive through the Redwood Forests in California, you will be trees that are over 100 years old（）
A．among
B．against
C．behind
D．below
