（）are Internet addresses used by Web browsers to locate I nternet resources.A、 HTTPB、 URLsC、 DNSD、 HTML

题目

（）are Internet addresses used by Web browsers to locate I nternet resources.

  • A、 HTTP
  • B、 URLs
  • C、 DNS
  • D、 HTML
相似考题

1.●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

2.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

3.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.

4.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！

参考答案和解析
正确答案:B
更多“（）are Internet addresses used by”相关问题

  • 第1题：

    Which of the following is used to reduce the number of public IP addresses required?()

    A.RADIUS

    B.SNAT

    C.PAT

    D.NAT


    参考答案：D

  • 第2题：

    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.


    参考答案：A

  • 第3题：

    Which of the following describe private IP addresses (Choose two.)()。

    A.addresses chosen by a company 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 enterprises or ISPs by an Internet registry organization


    参考答案：B, D

  • 第4题：

    When multiple routers are used in interconnected networks,the routers exchange information about （ ） using a dynamic routing protocol.

    A.destination addresses
    B.IP addresses
    C.work addresses
    D.router addresses

    答案：A
    解析：
    翻译：当多个路由器进行互联的网络，对目的地址使用动态路由协议的路由器交换信息。 A．目标地址 B．IP地址 C．工作地址 D．路由地址

  • 第5题：

    What is the purpose of a network mask?（）

    • A、It is used in conjunction with the wildcard mask to determine the number of hosts on a network
    • B、It is used to define which parts of the IP address are allocated to host addresses and network prefixes
    • C、It is used to hide subnets from external networks by masking the subnets with NAT
    • D、It is used to differentiate a network as a classful network or a classless network

    正确答案:B

  • 第6题：

    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.

    正确答案:A

  • 第7题：

    Which three IP multicast related statements are true？ （Choose three.）  （）

    • A、 Multicast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the Internet
    • B、 The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network  Time Protocol （NTP） by the IANA
    • C、 Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are  constrained to a local group or organization
    • D、 Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for  OSPF
    • E、 Multicast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live （TTL） of 1， they are never forwarded  by a router

    正确答案:A,C,E

  • 第8题：

    Which of the following is used to identify active hosts along with their network addresses?（）

    • A、Port scan
    • B、Ping sweep
    • C、IDS
    • D、NIPS

    正确答案:B

  • 第9题：

    The internet address 198.102.27.120 represents which of the following addresses？（）

    • A、Class A
    • B、Class B
    • C、Class C
    • D、Class D

    正确答案:C

  • 第10题：

    多选题
    Which three IP multicast address related statements are true？ （Choose three.） （）
    A

    Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live （TTL） greater than 1.

    B

    Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.

    C

    Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3.

    D

    Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together.

    E

    Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA

    F

    The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.


    正确答案： C,E,F
    解析： 暂无解析

  • 第11题：

    单选题
    Which system is used to resolve names on the Internet， such as comptia.org， to IP addresses？（）
    A

    WINS（windows internet name service）

    B

    HOSTS

    C

    DNS

    D

    LMHOSTS


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    What are the "bound IP addresses" used for in LDP？（）
    A

    For each such address and mask /32, one label binding is created.

    B

    As the TCP endpoint, IP addresses are used by the LDP session.

    C

    These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.

    D

    These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly. 


    正确答案： D
    解析： 暂无解析

  • 第13题：

    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 addresses

    B. only the low-order 24 bits of the MAC address are used to map IP addresses

    C. only the high-order 23 bits of the MAC address are used to map IP addresses

    D. only the low-order 23 bits of the IP address are used to map MAC addresses

    E. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses

    F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses


    参考答案：A, F

  • 第14题：

    Which of the following describe private IP addresses?()

    A. addresses chosen by a company 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 enterprises or ISPs by an Internet registry organization


    参考答案：B, D

  • 第15题：

    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 withoutpermission 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 （请作答此空） 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.reject
    B.receive
    C.deny
    D.forward

    答案：D
    解析：
    理解NAT的基本工作原理，这题就简单了。

  • 第16题：

    What are the "bound IP addresses" used for in LDP？（）

    • A、For each such address and mask /32, one label binding is created.
    • B、As the TCP endpoint, IP addresses are used by the LDP session.
    • C、These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.
    • D、These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly. 

    正确答案:C

  • 第17题：

    Which of the following describe private IP addresses? (Choose two.)（）

    • A、addresses chosen by a company 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 enterprises or ISPs by an Internet registry organization

    正确答案:B,D

  • 第18题：

    Which of the following describe private IP addresses?（）

    • A、addresses chosen by a company 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 enterprises or ISPs by an Internet registry organization

    正确答案:B,D

  • 第19题：

    Which of the following describe private IP addresses?（）

    • A、Addresses chosen by a company 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.

    正确答案:B,D

  • 第20题：

    Which of the following is used to reduce the number of public IP addresses required?（）

    • A、RADIUS
    • B、SNAT
    • C、PAT
    • D、NAT

    正确答案:D

  • 第21题：

    多选题
    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 addresses

    B

    only the low-order 24 bits of the MAC address are used to map IP addresses

    C

    only the high-order 23 bits of the MAC address are used to map IP addresses

    D

    only the low-order 23 bits of the IP address are used to map MAC addresses

    E

    the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses

    F

    the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses


    正确答案： A,D
    解析： 暂无解析

  • 第22题：

    多选题
    Which of the following describe private IP addresses?（）
    A

    Addresses chosen by a company 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.


    正确答案： E,B
    解析： 暂无解析

  • 第23题：

    多选题
    Which three IP multicast address related statements are true?（）
    A

    Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3

    B

    Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her

    C

    Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1

    D

    Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers

    E

    The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses

    F

    Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA


    正确答案： E,C
    解析： 暂无解析

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