多选题Which two statements are true about TCP communication?()AThe receiver acknowledges the final packet in each communications stream.BThe receiver adds sequencing numbers to the packets received.CThe sender adds sequencing numbers to the packets it sends.

题目
多选题
Which two statements are true about TCP communication?()
A

The receiver acknowledges the final packet in each communications stream.

B

The receiver adds sequencing numbers to the packets received.

C

The sender adds sequencing numbers to the packets it sends.

D

The receiver acknowledges each packet it receives from the sending device.


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  • 第1题:

    Which two statements are true about Voice over IP (VoIP) packet delivery in a digital infrastructure? ()

    • A、 Packets can arrive out of order.
    • B、 Packets must take the same path to the destination.
    • C、 Once packets are received at the destination router, the router performs sampling to ensure the quality of the voice traffic.
    • D、 Packets can experience varying delays across the network.
    • E、 Packets containing voice samples are sequentially numbered by default, allowing for reordering upon arrival at the terminal router along the path.

    正确答案:A,D

  • 第2题:

    A user opens a webpage that requires the transmission of packets from the Web server to the client's browser. The packets transmitted from the Web server to the client exceed the smallest MTU value on the communications path. Which two protocol functions allow this type of communication?()

    • A、packet segmentation
    • B、serialized checking
    • C、packet sequencing
    • D、parallel checking

    正确答案:A,C

  • 第3题:

    VOIP has been implemented at the main office of the Company network. Which two statements  are true about voice packets in a LAN?()

    • A、 Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media  portion of the VoIP communication.  
    • B、 Voice traffic data flow involves large volumes of large packets.  
    • C、 Because a packet loss involves a small amount of data, voice traffic is less affected by packet  losses than traditional data traffic is.  
    • D、 Voice packets are encapsulated in TCP segments to allow for proper sequencing during  delivery. 
    • E、 Voice packets are very sensitive to delay and jitter. 

    正确答案:A,E

  • 第4题:

    Which three statements are true about policing? ()

    • A、Out-of-profile packets are queued.
    • B、It causes TCP retransmits.
    • C、Marking and remarking are not supported.
    • D、It does not respond to BECN and foresight messages.
    • E、It uses a single- and two-bucket mechanism for metering.

    正确答案:B,D,E

  • 第5题:

    Which two statements are true about the forwarding table?()

    • A、The forwarding table lists each source protocol and preference for each destination.
    • B、The forwarding table contains only active routes.
    • C、The forwarding table is used to process transit packets.
    • D、The forwarding table is stored in compact flash.

    正确答案:B,C

  • 第6题:

    单选题
    Which information is stored in the stateful session flow table while using a stateful firewall?()
    A

    the inside private IP address and the translated inside global IP address

    B

    the source and destination IP addresses, port numbers,TCP sequencing information, and additional flags for each TCP or UDP connection associated with a particular session

    C

    the outbound and inbound access rules (ACL entries)

    D

    all TCP and UDP header information only


    正确答案: B
    解析: 暂无解析

  • 第7题:

    多选题
    Which two statements are true about traffic shaping?()
    A

    Out-of-profile packets are queued.

    B

    It causes TCP retransmits.

    C

    Marking/remarking is not supported.

    D

    It does not respond to BECN and ForeSight Messages.

    E

    It uses a single/two-bucket mechanism for metering.


    正确答案: A,B
    解析: 暂无解析

  • 第8题:

    多选题
    Which three statements are true about policing? ()
    A

    Out-of-profile packets are queued.

    B

    It causes TCP retransmits.

    C

    Marking and remarking are not supported.

    D

    It does not respond to BECN and foresight messages.

    E

    It uses a single- and two-bucket mechanism for metering.


    正确答案: E,C
    解析: 暂无解析

  • 第9题:

    多选题
    VOIP has been implemented at the main office of the Company network. Which two statements  are true about voice packets in a LAN?()
    A

    Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media  portion of the VoIP communication.

    B

    Voice traffic data flow involves large volumes of large packets.

    C

    Because a packet loss involves a small amount of data, voice traffic is less affected by packet  losses than traditional data traffic is.

    D

    Voice packets are encapsulated in TCP segments to allow for proper sequencing during  delivery.

    E

    Voice packets are very sensitive to delay and jitter.


    正确答案: B,D
    解析: 暂无解析

  • 第10题:

    多选题
    Which two statements are true about the forwarding table?()
    A

    The forwarding table lists each source protocol and preference for each destination.

    B

    The forwarding table contains only active routes.

    C

    The forwarding table is used to process transit packets.

    D

    The forwarding table is stored in compact flash.


    正确答案: A,B
    解析: 暂无解析

  • 第11题:

    多选题
    Which two statements are true about the protocols that are used for transmitting voice traffic?()
    A

    RTP multiplexing is used to keep multiple phone conversations separate

    B

    RTP provides end-to-end delivery services for voice traffic.

    C

    UDP is used to ensure a reliable transmission from sender to receiver.

    D

    RTP is used to provide resource reservation for the voice stream.

    E

    UDP provides multiplexing of multiple phone conversations.


    正确答案: D,C
    解析: 暂无解析

  • 第12题:

    多选题
    Which two statements are true about MLP interleaving? ()
    A

    It fragments and encapsulates all packets in a fragmentation header.

    B

    Packets smaller than the fragmentation size are interleaved between the fragments of the larger packets.

    C

    Packets larger than the fragmentation size are always fragmented, and cannot be interleaved, even if the traffic is voice traffic.

    D

    It fragments and encapsulates packets that are longer than a configured size, but does not encapsulate smaller packets inside a fragmentation header.


    正确答案: A,B
    解析: 暂无解析

  • 第13题:

    Which four statements about an IP service level agreement (SLA) are true? ()

    • A、SLA responder knows type of operation, the port used, and duration.
    • B、SLA responder inserts in and out timestamps in the packet payload.
    • C、SLA sender and responder use the IP SLA Control Protocol to communicate with each other before
    • D、SLA sender and responder communication can be encrypted.
    • E、SLA sender and responder communication can be authenticated with MD5.

    正确答案:A,B,C,E

  • 第14题:

    Which two statements are true about TCP communication?()

    • A、The receiver acknowledges the final packet in each communications stream.
    • B、The receiver adds sequencing numbers to the packets received.
    • C、The sender adds sequencing numbers to the packets it sends.
    • D、The receiver acknowledges each packet it receives from the sending device.

    正确答案:A,C

  • 第15题:

    Which two statements are true about traffic shaping?()

    • A、Out-of-profile packets are queued.
    • B、It causes TCP retransmits.
    • C、Marking/remarking is not supported.
    • D、It does not respond to BECN and ForeSight Messages.
    • E、It uses a single/two-bucket mechanism for metering.

    正确答案:A,C

  • 第16题:

    Which two statements about MPLS Label Distribution Protocol (LDP) are true? ()

    • A、LDP hello packets are sent to TCP 646.
    • B、LDP session packets are sent to TCP 646.
    • C、LDP session packets are sent to TCP 711.
    • D、LDP hello packets are sent to TCP 711.
    • E、LDP hello packets are sent to UDP 711.
    • F、LDP hello packets are sent to UDP 646.

    正确答案:B,F

  • 第17题:

    Which two statements are true about the forwarding table?()

    • A、The forwarding table lists each source protocol and preference for each destination.
    • B、The forwarding table contains only active routes.
    • C、The forwarding table is used to process transit packets.
    • D、The forwarding table is stored in compact flash

    正确答案:B,C

  • 第18题:

    多选题
    Which four statements about an IP service level agreement (SLA) are true? ()
    A

    SLA responder knows type of operation, the port used, and duration.

    B

    SLA responder inserts in and out timestamps in the packet payload.

    C

    SLA sender and responder use the IP SLA Control Protocol to communicate with each other before

    D

    SLA sender and responder communication can be encrypted.

    E

    SLA sender and responder communication can be authenticated with MD5.


    正确答案: A,D
    解析: 暂无解析

  • 第19题:

    多选题
    Which two statements about Junos software packet handling are correct?()(Choose two.)
    A

    The Junos OS applies service ALGs only for the first packet of a flow.

    B

    The Junos OS uses fast-path processing only for the first packet of a flow.

    C

    The Junos OS performs policy lookup only for the first packet of a flow.

    D

    The Junos OS applies SCREEN options for both first and consecutive packets of a flow.


    正确答案: C,B
    解析: 暂无解析

  • 第20题:

    多选题
    Which three statements are true about the data traffic characteristics of voice traffic? ()
    A

    latency must be kept below 150 ms

    B

    latency is not a concern as long as jitter is kept below 30 ms

    C

    voice packets do not require a specific type of queuing

    D

    voice packets are rather small

    E

    voice packets require TCP for rapid retransmission of dropped packets

    F

    voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload


    正确答案: E,C
    解析: 暂无解析

  • 第21题:

    多选题
    Which two statements are true about TCP communication?()
    A

    The receiver acknowledges the final packet in each communications stream.

    B

    The receiver adds sequencing numbers to the packets received.

    C

    The sender adds sequencing numbers to the packets it sends.

    D

    The receiver acknowledges each packet it receives from the sending device.


    正确答案: A,B
    解析: 暂无解析

  • 第22题:

    多选题
    Which two statements are true about voice packets in a LAN? (Choose two.)  ()
    A

    Voice traffic data flow involves large volumes of large packets.

    B

    Because a packet loss involves a small amount of data, voice traffic is less affected by packet losses than traditional data traffic is.

    C

    Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media portion of VoIP communication.

    D

    Voice packets are very sensitive to delay and jitter.

    E

    Voice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.


    正确答案: B,A
    解析: 暂无解析

  • 第23题:

    多选题
    Which two statements about MPLS Label Distribution Protocol (LDP) are true? ()
    A

    LDP hello packets are sent to TCP 646.

    B

    LDP session packets are sent to TCP 646.

    C

    LDP session packets are sent to TCP 711.

    D

    LDP hello packets are sent to TCP 711.

    E

    LDP hello packets are sent to UDP 711.

    F

    LDP hello packets are sent to UDP 646.


    正确答案: B,A
    解析: 暂无解析

  • 第24题:

    多选题
    Which two statements are true about the forwarding table?()
    A

    The forwarding table lists each source protocol and preference for each destination.

    B

    The forwarding table contains only active routes.

    C

    The forwarding table is used to process transit packets.

    D

    The forwarding table is stored in compact flash


    正确答案: D,C
    解析: 暂无解析