A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect two or more applications running on(61)computers attached to the network. A socket(62)two addresses:(63). Sockets provide a(64)

题目

A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect two or more applications running on(61)computers attached to the network. A socket(62)two addresses:(63). Sockets provide a(64)communication channel between one or more systems.There are(65)sockets separately using TCP and UDP.

A．unique

B．separate

C．same

D．dependent

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1.根据下面的文字资料回答 71～75 题 In the following essay，each blank has four choices．Choose the most suitable one from the four choices and write down in the answer sheet．A（ 1 ）is basically an end point of a communication link between two applications.Sockets that extend over a network connect two or more applications running on separate computer sat tached to the network．Asocket（ 2 ）twoaddresses：（ 3 ）．Sockets providea （ 4 ）communication channel between one or more systems.There are stream and datagram sockets separately using TCP and（ 5 ）．第6题：文中（ 1 ）处正确的答案是（ ）。A．programB．UDPC．socketD．TCP

2.Basically, a(71)is a standalone process or a set of integrated processes that runs on a router or server to control the flow of(72)application traffic(73)through it. Typically, firewalls are(74)on the entry point to a public network such as the Internet. They could be considered traffic cops. The firewall' s(75)is to ensure that all communication between an organization's network and the Internet conform. to the organization's security policies.A．routerB．clientC．firewallD．switch

3.is the 4th layer of the OSI reference model responsible for reliable network communication between end nodes.A．Data link layerB．Session layerC．Transport layerD．Application layer

4.Basically, a firewall is a(145)process or a set of integrated processes that runs on a router or(146)to control the flow of networked application traffic(147)through it. Typically, firewalls are placed on the entry point to a(148)network such as the Internet. They could be considered traffic cops. The firewall's(149)is to ensure that all communication between an organization's network and the Internet conform. to the organization's policies.A．dependentB．isolatedC．relatedD．standalone

更多“A socket is basically an end point of a communication link between two applications. Socke ”相关问题

  • 第1题：

    In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the(71) data circuit, which together enable data(72). So-called protocol means, in short, a set of rules that determines the behavior. of functional units in achieving communication.Data circuit, however, consists of a pair of(73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of(74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment(75) to a DCE at the data switching exchange or dam concentrator location.

    A．handshaking

    B．interconnecting

    C．linkage

    D．joining


    正确答案：B

  • 第2题：

    If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）

    • A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor link
    • B、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchanged
    • C、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor door
    • D、A SHAM link is part of OSPF network of MPLS-VPN provider

    正确答案:A,B

  • 第3题：

    In a RSTP implementation, which of the following two link types are used? （）(Choose two.)

    • A、Shared
    • B、Point-to-Point
    • C、Designated
    • D、Multiaccess non-broadcast

    正确答案:A,B

  • 第4题：

    Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs（）。

    • A、a switch with a trunk link that is configured between the switches
    • B、a router with an IP address on the physical interface that is connected to the switch
    • C、a switch with an access link that is configured between the switches
    • D、a router with subinterfaces configured on the physical interface that is connected to the switch

    正确答案:D

  • 第5题：

    You are using standalone Cisco Aironet 1400 Series Wireless Bridges for a nine-mile point-to-point wireless link between two buildings. Which distance setting should you use for the bridgeconfigured as the root？（）

    • A、20 km [12.4 miles]
    • B、10 km [6.2 miles]
    • C、5 km [3.1 miles]
    • D、25 km [15.5 miles]
    • E、15 km [9.3 miles]

    正确答案:E

  • 第6题：

    On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）

    • A、a router with subinterfaces configured on the physical interface that is connected to the switch
    • B、a router with an IP address on the physical interface connected to the switch
    • C、a switch with an access link that is configured between the switches
    • D、a switch with a trunk link that is configured between the switches

    正确答案:A

  • 第7题：

    During a planning session， it is determined that a three node cluster （Node ’A’， Node ’B’， and Node ’C’） will meet the customer’s application needs. Node ’B’ will be a hot-standby fallover node for both Node ’A’ and Node ’C’ resource groups.  A serial network for this cluster will require which connections？（）  

    • A、 A single serial network between Node ’A’ and Node ’B’ and Node ’C’
    • B、 A point-to-point link between Node ’A’ and Node ’C’，and Node ’B’ and Node ’C’
    • C、 A serial network between Node ’A’ and Node ’C’，and a serial network between Node ’B’ and Node ’C’
    • D、 A point-to-point link between Node ’A’ and Node ’B’ Node ’B’ and Node ’C’ and Node ’A’ ad Node ’C’

    正确答案:D

  • 第8题：

    单选题
    Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs（）。
    A

    a switch with a trunk link that is configured between the switches

    B

    a router with an IP address on the physical interface that is connected to the switch

    C

    a switch with an access link that is configured between the switches

    D

    a router with subinterfaces configured on the physical interface that is connected to the switch


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Barely able to speak because of the cold, the communication among the two explorers had to be done through gestures.
    A

    the communication among the two explorers had to be done through gestures

    B

    the communication between the two explorers had to be done through gestures

    C

    the two explorers had to communicate through gestures

    D

    the two explorers had to communicate between themselves from gestures

    E

    gestures were used to communicate between the two explorers


    正确答案： E
    解析：
    原句修饰词组的位置不正确，C纠正了这个错误。

  • 第10题：

    单选题
    What is the primary use of a remote access VPN?（）
    A

    to secure communication between two remote PCs

    B

    to secure communication between two remote offices

    C

    to secure communication betweenan remote PC and the corporate intranet

    D

    to secure communication between a corporate intranet and the public internet


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs?（）
    A

    a router with subinterfaces configured on the physical interface that is connected to the switch

    B

    a router with an IP address on the physical interface connected to the switch

    C

    a switch with an access link that is configured between the switches

    D

    a switch with a trunk link that is configured between the switches


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    The lowest point between two waves is called（）.
    A

    though

    B

    tough

    C

    through

    D

    trough


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Which two of these are correct regarding the recommended practice for distribution layer design based on the following configuration?()

    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


    参考答案：C, D

  • 第14题：

    Which statement is correct about an OSPF sham-link？（）

    • A、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
    • B、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • C、A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.
    • D、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • E、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    正确答案:B

  • 第15题：

    You are using standalone cisco aironet 1400 series wireless bridges for a nine-mile point-to-point wireless link between two buildings. Which distance setting should you use for the bridge configured as the root？（）

    • A、20 km [12.4 miles]
    • B、10 km [6.2 miles]
    • C、5 km [3.1 miles]
    • D、25 km [15.5 miles]
    • E、15 km [9.3 miles]

    正确答案:E

  • 第16题：

    You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）

    • A、The link is using IEEE 802.1Q protocol
    • B、The link is using IEEE 802.1E protocol
    • C、Spanning tree is disabled
    • D、Not enough information to determine
    • E、The native VLAN information is identical at each end of the link
    • F、The native VLAN information is different at each end of the link

    正确答案:A,F

  • 第17题：

    What is the primary use of a remote access VPN?（）

    • A、to secure communication between two remote PCs
    • B、to secure communication between two remote offices
    • C、to secure communication betweenan remote PC and the corporate intranet
    • D、to secure communication between a corporate intranet and the public internet

    正确答案:C

  • 第18题：

    A company has installed a new 802.11g point-to-point connection between two buildings and isexperiencing low throughput across the link. The current setup involves a wireless bridge on the roof with an omni-directional antenna. Which of the following would BEST improve the link performance?（）

    • A、Replace the wireless bridges with wireless access points.
    • B、Install bi-directional amplifiers at both sites.
    • C、Configure channel hopping on both wireless bridges.
    • D、Replace the omni-directional antennas with Yagi antennas

    正确答案:D

  • 第19题：

    Routers A and B have an OC12c and a GE link between them and are running OSPF over both of these links.Which item is correct， assuming the default JUNOS software OSPF metric calculation？（）

    • A、There are two equal cost paths between A and B
    • B、The GE link is the preferred path between A and B
    • C、The OC12c link is the preferred path between A and B
    • D、Manual metric assignment must be configured to determine the outcome.

    正确答案:A

  • 第20题：

    单选题
    Companycom has a p5 595 running 12 LPARs. They are interested in high bandwidth, secure communication between two of the LPARs within the p5 595 server. They do not have any unused Ethernet adapters. Which of the following recommendations will best meet this requirement?（）
    A

    Utilize the integrated 10/100/1000 network interface

    B

    Implement Virtual Ethernet to enable inter-partition communication

    C

    Implement shared Ethernet with the Ethernet adapters utilized in the other LPARs

    D

    Implement a Point to Point protocol serial communication between the p5 595 serial ports


    正确答案： D
    解析： 暂无解析

  • 第21题：

    多选题
    Which two wireless devices acts as a communication connection between the client and WLAN（）
    A

    bridge

    B

    access point

    C

    wireless adaptor

    D

    Layer 3 switch

    E

    antenna


    正确答案： D,C
    解析： 暂无解析

  • 第22题：

    单选题
    Which statement is correct about an OSPF sham-link？（）
    A

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    B

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    C

    A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.

    D

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    E

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    You have a trunk link operating between two switches and you’re experiencing problems withframes leaking between the two VLANs. Each switch has identical modules， software revisionsand VLAN configuration information. Spanning tree protocol is disabled on all VLANs. What isprobably causing this problem？（）
    A

    The link is using IEEE 802.1Q protocol

    B

    The link is using IEEE 802.1E protocol

    C

    Spanning tree is disabled

    D

    Not enough information to determine

    E

    The native VLAN information is identical at each end of the link

    F

    The native VLAN information is different at each end of the link


    正确答案： D,C
    解析： 暂无解析

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