更多“多选题Which two fields are found in an Ethernet frame header?()ATTLBflagsCchecksumDtype”相关问题
  • 第1题:

    Which two features did WPAv1 add to address the inherent weaknesses found in WEP?()

    • A、a stronger encryption algorithm
    • B、key mixing using temporal keys
    • C、shared key authentication
    • D、a shorter initialization vector
    • E、per frame sequence counters

    正确答案:B,E

  • 第2题:

    Two Company switches are connected via a trunk link. In this network, the original frame is  encapsulated and an additional header is added before the frame is carried over a trunk link. At  the receiving end, the header is removed and the frame is forwarded to the assigned VLAN.  This  describes which technology?()

    • A、 DISL
    • B、 ISL
    • C、 DTP
    • D、 IEEE 802.1Q
    • E、 MPLS
    • F、 None of the other alternatives apply

    正确答案:B

  • 第3题:

    Which two are valid fields in an IPv6 header?()

    • A、Hop Limit
    • B、Next Header
    • C、Fragment Offset
    • D、Header Checksum

    正确答案:A,B

  • 第4题:

    Which two statements about an interface configured with the asr-group command are correct?()

    • A、The FWSM supports up to 16 asymmetric routing groups.
    • B、If a matching packet is not found, the packet is dropped.
    • C、Asymetric routing of return traffic is enabled.
    • D、If a matching packet is found, the Layer 3 header is rewritten.
    • E、If a matching packet is found, the Layer 3 header is rewritten and the packet is forwarded to the default gateway.

    正确答案:B,C

  • 第5题:

    Which two of these are characteristics of the 802.1Q protocol?()

    • A、it is a layer 2 messaging protocol which maintains vlan configurations across network.
    • B、it includes an 8-bit field which specifies the priority of a frame.
    • C、it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.
    • D、it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.
    • E、it is a trunking protocol capable of carring untagged frames.

    正确答案:D,E

  • 第6题:

    Which three of the following options are NOT fields found in an Ethernet frame?()

    • A、Version
    • B、Type
    • C、Source Port
    • D、Flags
    • E、Data

    正确答案:A,C,D

  • 第7题:

    多选题
    Which two features did WPAv1 add to address the inherent weaknesses found in WEP?()
    A

    a stronger encryption algorithm

    B

    key mixing using temporal keys

    C

    shared key authentication

    D

    a shorter initialization vector

    E

    per frame sequence counters


    正确答案: E,B
    解析: 暂无解析

  • 第8题:

    多选题
    Which fields are included in the TCP header?()
    A

    Source Port

    B

    Acknowledgement Number

    C

    Request Number

    D

    Destination Address

    E

    Window

    F

    Data


    正确答案: E,B
    解析: 暂无解析

  • 第9题:

    单选题
    Which Ethernet field is used to differentiate between the FCoE frame and the FIP frame?()
    A

     Ethernet FCS

    B

     Source address

    C

     Destination address

    D

     EtherType

    E

     Protocol type


    正确答案: C
    解析: 暂无解析

  • 第10题:

    多选题
    Which two are valid fields in an IPv6 header?()
    A

    Hop Limit

    B

    Next Header

    C

    Fragment Offset

    D

    Header Checksum


    正确答案: D,A
    解析: 暂无解析

  • 第11题:

    多选题
    Which two statements about an interface configured with the asr-group command are correct?()
    A

    The FWSM supports up to 16 asymmetric routing groups.

    B

    If a matching packet is not found, the packet is dropped.

    C

    Asymetric routing of return traffic is enabled.

    D

    If a matching packet is found, the Layer 3 header is rewritten.

    E

    If a matching packet is found, the Layer 3 header is rewritten and the packet is forwarded to the default gateway.


    正确答案: C,A
    解析: 暂无解析

  • 第12题:

    单选题
    Two Company switches are connected via a trunk link. In this network, the original frame is  encapsulated and an additional header is added before the frame is carried over a trunk link. At  the receiving end, the header is removed and the frame is forwarded to the assigned VLAN.  This  describes which technology?()
    A

     DISL

    B

     ISL

    C

     DTP

    D

     IEEE 802.1Q

    E

     MPLS

    F

     None of the other alternatives apply


    正确答案: A
    解析: 暂无解析

  • 第13题:

    Which two Any Transport over MPLS (AToM) traffic encapsulations require the use of a control word?()

    • A、HDLC
    • B、ATM AAL5
    • C、PPP
    • D、Ethernet VLAN
    • E、Frame Relay

    正确答案:B,E

  • 第14题:

    Which fields are included in the TCP header?()

    • A、Source Port
    • B、Acknowledgement Number
    • C、Request Number
    • D、Destination Address
    • E、Window
    • F、Data

    正确答案:A,B,E

  • 第15题:

    Which two fields are found in an Ethernet frame header?()

    • A、TTL
    • B、flags
    • C、checksum
    • D、type

    正确答案:C,D

  • 第16题:

    Which Ethernet field is used to differentiate between the FCoE frame and the FIP frame?()

    • A、 Ethernet FCS
    • B、 Source address
    • C、 Destination address
    • D、 EtherType
    • E、 Protocol type

    正确答案:D

  • 第17题:

    Which of one the following fields is contained within an IEEE Ethernet frame header?()

    • A、source and destination MAC address
    • B、source MAC address and destination network address only
    • C、source and destination network address only
    • D、source network address and destination MAC address
    • E、source and destination MAC address and source and destination network address

    正确答案:A

  • 第18题:

    Which two fields are found in an Ethernet frame?()

    • A、Version
    • B、TTL
    • C、Checksum
    • D、Flags
    • E、Data

    正确答案:C,E

  • 第19题:

    多选题
    Which three of the following options are NOT fields found in an Ethernet frame?()
    A

    Version

    B

    Type

    C

    Source Port

    D

    Flags

    E

    Data


    正确答案: B,A
    解析: 暂无解析

  • 第20题:

    单选题
    Which of one the following fields is contained within an IEEE Ethernet frame header?()
    A

    source and destination MAC address

    B

    source MAC address and destination network address only

    C

    source and destination network address only

    D

    source network address and destination MAC address

    E

    source and destination MAC address and source and destination network address


    正确答案: A
    解析: 暂无解析

  • 第21题:

    多选题
    Which four of these are MPLS label header fields? ()
    A

    Label

    B

    VPI VCI

    C

    EXP

    D

    TTL

    E

    FCS

    F

    S flag


    正确答案: C,A
    解析: 暂无解析

  • 第22题:

    多选题
    Which two fields are found in an Ethernet frame?()
    A

    Version

    B

    TTL

    C

    Checksum

    D

    Flags

    E

    Data


    正确答案: C,B
    解析: 暂无解析

  • 第23题:

    多选题
    Which two of these are characteristics of the 802.1Q protocol?()
    A

    it is a layer 2 messaging protocol which maintains vlan configurations across network.

    B

    it includes an 8-bit field which specifies the priority of a frame.

    C

    it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.

    D

    it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.

    E

    it is a trunking protocol capable of carring untagged frames.


    正确答案: C,D
    解析: 暂无解析