（）are Internet addresses used by Web browsers to locate I nternet resources.
●Which one of these statements about connecting to the Internet is true? (68) .(68) A．The Internet can only be used to link computers with same operating systemB．The Internet can be used to connect computers with different ISPC．You must have a telephone line to connect to the InternetD．You must have a modem to connect to the Internet
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The number of home users and small businesses that want to use the Internet is ever increasing. The shortage of addresses is becoming a serious problem.A quick solution to this problem is called network address translation(NAT).NAT enables a user to have a large set of addresses（ ）and one address, or a smallset of addresses,externally. The traffic inside can use the large set; the traffic（ ）, the small set. To separate the addresses used inside the home or business and the ones used for the Internet, the Internet authorities have reserved three sets of addresses as（ ）addresses. Any organization can use an address out of this set without permission from the Internet authorities. Everyone knows that these reserved addresses are for private networks.They are（ ）inside the organization, but they are not unique globally. No router will（ ）a packet that has one of these addresses as the destination address.The site must have only one single connection to the global Internet through a router that runs the NAT software.A.absolutelyB.completelyC.internallyD.externallyA.localB.outsideC.middleD.aroundA.privateB.commonC.publicD.externalA.uniqueB.observableC.particularD.ordinaryA.rejectB.receiveC.denyD.forward请帮忙给出每个问题的正确答案和分析，谢谢！
Which one of these statements about connecting to the Internet is true?(68).A．The Internet can only be used to link computers with same operating systemB．The Internet can be used to connect computers with different ISPC．You must have a telephone line to connect to the InternetD．You must have a modem to connect to the Internet
Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)A．Addresses chosen by Ezonexam.com to communicate with the Internet.B．Addresses that cannot be routed through the public Internet.C．Addresses that can be routed through the public Internet.D．A scheme to conserve public addresses.E．Addresses licensed to enterprise or ISPs by an Internet registry organization.
Which of the following is used to reduce the number of public IP addresses required?()A.RADIUSB.SNATC.PATD.NAT
Which two design concerns must be addressed when designing a multicast implementation?()A. only the low-order 23 bits of the MAC address are used to map IP addressesB. only the low-order 24 bits of the MAC address are used to map IP addressesC. only the high-order 23 bits of the MAC address are used to map IP addressesD. only the low-order 23 bits of the IP address are used to map MAC addressesE. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addressesF. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses
What will happen if a private IP address is assigned to a public interface connected to an ISP?()A. Addresses in a private range will be not routed on the Internet backbone.B. Only the ISP router will have the capability to access the public network.C. The NAT process will be used to translate this address in a valid IP address.D. Several automated methods will be necessary on the private network.E. A conflict of IP addresses happens, because other public routers can use the same range.
