更多"[单选题]考虑到用户报文在Gn/Gp口可能经过多层隧道封装，为了避免报"的相关试题:
[单选题]考虑到用户报文在Gn/Gp口可能经过多层隧道封装，为了避免报文分片，推荐在xGW GGSN的APN配置中将Max Segment Size (MSS)设为（ ）。
A.1360
B.1400
C.1420
D.1460
[判断题]xGW GGSN Gi口为双网双平面组网，每个用户的报文都会基本均匀地通过两个平面转发。
The Gi interface of the xGW GGSN uses the dual-plane networking structure, so the packets of each user are evenly forwarded over two planes.
A.正确
B.错误
[单选题]关于xGW(PDSN)，当出现鉴权报文无应答告警时，PDSN将在（）分钟内不再发送鉴权报文到给AAA。
On the xGW(PDSN), when the alarm "not receive authentication reply for many times" occurs, the PDSN will not send Access Request message to the AAA within ( ) minute(s).
A.1
B.2
C.5
D.10
[多选题]关于xGW(PDSN)，计费报文中的时间戳错误，以下检查方法正确的有（）。
On the xGW(PDSN), if the timestamp in accounting messages is wrong, what are the correct checking steps? ( )
A.检查时间是否正确
Check the time.
B.检查时区设置是否正确
Check the timezone configuration.
C.检查夏时制设置是否正确
Check the summer time configuration.
D.检查AAA的时间是否正确
Check the time of AAA.
[单选题]ZXUN xGW产品的GSU单板能提供( )个双向SPI 4.2接口的媒体报文通道。
A.1
B.2
C.3
D.4
[单选题]ZXUN XGW产品的GSU单板能提供____个双向SPI 4.2接口的媒体报文通道
A.1
B.2
C.3
D.4
[判断题]PFU板是ZXUN xGW系统的非级联交换网板，完成系统中数据报文的高速交换功能。
A.正确
B.错误
[单选题]ZXUN-xGW GGSN使用VRF隔离不同业务流量，其中Gn口的vrf名称为Gnvrf。查询Gn口路由表的命令为（ ）。
VRF is used on the ZXUN-xGW GGSN to isolate traffic of different services, and the VRF of the Gn interface is named as Gnvrf. To query routing tables of the Gn interface, run the ( ) command.
A.show ip route vrf Gn
B.show ip route vrf Gnvrf
C.show ip forwarding route vrf Gn
D.show ip forwarding route vrf Gnvrf
[单选题]xGW(PDSN)的路由表如下，目的IP是10.128.0.199的报文将会转发到（）。
Dest NextHop
*> 0.0.0.0/0 10.42.222.1
*> 10.128.0.0/17 10.42.222.4
*> 10.128.0.0/18 10.42.222.5
*> 10.128.0.0/24 10.42.222.3
*> 10.128.0.0/25 10.42.222.2
The route table of xGW(PDSN) is shown as below. Packets with a destination IP address of 10.128.0.199 will be transferred to ( ).
Dest NextHop
*> 0.0.0.0/0 10.42.222.1
*> 10.128.0.0/17 10.42.222.4
*> 10.128.0.0/18 10.42.222.5
*> 10.128.0.0/24 10.42.222.3
*> 10.128.0.0/25 10.42.222.2
A.10.42.222.2
B.10.42.222.3
C.10.42.222.4
D.10.42.222.5
[多选题]xGW GGSN支持给OCS上报用户号码类型包括（ ）。
The xGW GGSN can report the following user number types to the OCS: ( ).
A.IMSI
B.P-TMSI
C.MSISDN
D.IMEI
E.
F.234
G.13
H.IMSI MSISDN
[单选题]当NTP服务器部署在IP承载网或者Gn网时，xGW需要通过（）获取时钟源。
When NTP server is deployed in the IP bearer network or Gn network, the xGW needs to get the clock source through ( ) .
A.MPU
B.PFU
C.SFU
D.CSU
