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. UDP port 169
B. TCP port 169
C. UDP port 179
D. TCP port 179
第2题:
A. application
B. presentation
C. session
D. transport
E. network
F. data link
G. physical
第3题:
INTERNET中传输的数据单元称为()。Datagram通过网络传输的数据的基本单元,包含一个报头(header)和数据本身,其中报头描述了数据的目的地以及和其它数据之间的关系。
A.数据帧
B.数据报
C.报文
D.数据块
第4题:
In a frame ,the MPLS label is imposed().
第5题:
Which three statements about classification marking of traffic at Layer 2 are true? ()
第6题:
Routers perform the decision process that selects what path a packet takes. These ( ) layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer ( ) of each packet. You can connect the routers directly by point-to-point ( ) or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 ( ) information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet ( ) decision process.
A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting
第7题:
Which OSI layer header contains the address of a destination host that is another network?()
第8题:
A. single ATM header
B. single Ethernet header
C. ATM header followed by a PPP header
D. ATM header followed by an Ethernet header
第9题:
Which QoS preclassification option will require the use of the qos pre-classify command for the VPN traffic? ()
第10题:
添加图层蒙版的方法是()。