改变MS功率的命令和改变TA的命令在每一个下行的SACCH信息块所带的()传送给MS。
第1题:
A. application
B. presentation
C. session
D. transport
E. network
F. data link
G. physical
第2题:
Which three statements about classification marking of traffic at Layer 2 are true? ()
第3题:
In a frame ,the MPLS label is imposed().
第4题:
Which statement is true about IP telephony calls?()
第5题:
Which header or set of headers does CRTP compress? ()
第6题:
Where is the MPLS label imposed?()
第7题:
Which traffic descriptor is used for marking? ()
第8题:
On which destination port in the Layer 4 header does BGP listen?()
第9题:
application
presentation
session
transport
network
data link
physical
第10题:
after the Layer 3 header and before the Layer 2 payload
after the Layer 3 header and before the Layer 4 payload
after the Layer 2 header and before the Layer 1 payload
after the Layer 1 header and before the Layer 2 payload
after the Layer 2 header and before the Layer 3 payload
第11题:
UDP port 169
TCP port 169
UDP port 179
TCP port 179
第12题:
Layer 2
Layer 3
Layer 4
Layer 2 and Layer 3
Layer 3 and Layer 4
第13题:
Which OSI layer header contains the address of a destination host that is another network?()
第14题:
Which QoS preclassification option will require the use of the qos pre-classify command for the VPN traffic? ()
第15题:
添加图层蒙版的方法是()。
第16题:
Which two statements about an interface configured with the asr-group command are correct?()
第17题:
What is true about Quality of Service (QoS) for VPNs?()
第18题:
In Any Transport over MPLS (AtoM) Control word is an optional 4-byte field used in the pseudowire packet.The control word carries generic and Layer 2 payload-specific information to emulate L2 packets correctly.In pseudowire packet, where is this Control Word inserted?()
第19题:
In a Bridged 1483 network, what Layer 2 encapsulations are passed between the DSL bridge and the ERX?()
第20题:
执行“Layer/DisableLayers”命令
执行“Layer/EnableLayersMask”命令
执行“Layer/AddLayerMask”命令
执行“Layer/RemoveLayerMask”命令
第21题:
a Frame Relay header includes a 1-bit discard eligible (DE) bit to provide the class of service (CoS)
an ATM header includes a 1-bit DE field to provide the CoS
an MPLS EXP field is inserted in the Layer 3 IP precedence field to identify the CoS
the CoS field only exists inside Ethernet frames when 802.1Q or Inter-Switch Link (ISL) trunking is used
in the IEEE 802.1p standard, three bits are used to identify the user priority bits for the CoS
in the IEEE 802.1q standard, six bits are used to identify the user priority bits for the CoS
第22题:
在每次穿越路由器的时候,其帧报头保持不变,而IP报头要被改变
在每次穿越路由器的时候,其帧报头要被改变,而IP报头保持不变
在穿越路由器的时候,其帧报头不被改变,而IP报头进入不同网络要随之改变
在每次穿越路由器的时候,其帧报头和IP报头都被改变
第23题:
The FWSM supports up to 16 asymmetric routing groups.
If a matching packet is not found, the packet is dropped.
Asymetric routing of return traffic is enabled.
If a matching packet is found, the Layer 3 header is rewritten.
If a matching packet is found, the Layer 3 header is rewritten and the packet is forwarded to the default gateway.