GB0-391 Exam Preparation Material | Constructing Secure optimized WANs v2.0

Prepare for the GB0-391 with reliable study materials, practice questions, and key exam insights.

Prepare for the GB0-391 Constructing Secure optimized WANs v2.0 exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

配置 PKI 域所信任的 CA (权威认证机构为) H3CCA ,且配置注册服务器的 URL 为 ca . h3c . com 的命令分别为 ____ 。

A. 在 PKI 域视图下,配置 ca .identifier H3CCA
B. 在 PKI 域视图下,配置 CErtificate identifier-H3CCA
C. 在 PKI 域视图下,配置 CErtificate request url ca . h3c . com
D. 在 PKI 域视图下,配置 CErtificate url ca . h3c . com

Explanation:




Question#2

下列关于 H.323 终端的描述正确的是

A. 普通 PSTN 电话是一个标准的
B. 323 终端设备
C. 普通的
D. 323 终端有可能不支持视频功能
E. 普通的
F. 323 终端有可能不支持传真功能
G. 连接在 PSTN 电话网上的传真机是一个标准的
H. 323 终端设备

Explanation:
H.323 是在 IP 网络上传输音频、视频和数据的规范。所以 AD 不正确。


Question#3

下列关于 RT 的 Export Target 属性和 Import Target 属性的描述正确的是 ______ 。

A. PE 接受到 MP-BGP 路由时,将路由协议中所携带的 RT 属性与本地 VPN 的 Import Target 属性比较,存在交集的才能被接收到该 VPN
B. PE 接受到 MP-BGP 路由时,将路由协议中所携带的 RT 属性与本地 VPN 的 Export Target 属性比较,存在交集的才能被接收到该 VPN
C. 本地 VPN 的私网路由通过 MP-BGP 路由协议发布给对端 PE 时,在 BGP 路由中需要携带该 VPN 的 Export Target 属性
D. 本地 VPN 的私网路由通过 MP-BGP 路由协议发布给对端 PE 时,在 BGP 路由中需要携带该 VPN 的 Importt Target 属性 Import

Question#4

在 MPLS 网络中标签值 3 具有特殊含义,它表示 ______ 。

A. 如果某转发等价类的 MPLS 标签转发表项的出标签为 3 ,表示该设备是该转发等价类的倒数第二跳设备
B. 如果某转发等价类的 MPLS 标签转发表项的入标签为 3 ,表示该设备是该转发等价类的倒数第二跳设备
C. 如果某转发等价类的 MPLS 标签转发表项的出标签为 3 ,表示该设备是该转发等价类的倒数第一跳设备
D. 如果某转发等价类的 MPLS 标签转发表项的入标签为 3 ,表示该设备是该转发等价类的倒数 第一跳设备

Explanation:


Question#5

在 S3610 交换机上配置了如下命令:
qos map-table dot1p-lp
import 1 export 5
import 2 export 4
interface Ethernet1/0/8
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos trust dot1p
interface Ethernet1/0/9
port link-mode bridge
port link-tpe trunk
port trunk permit vlan 1 4
qos wrr 5 group 1 weight 5
qos wrr 4 group 1 weight 4
qos gts any cir 65000 cbs 2000000
则当流量为 40Mbps 的 vlan id 为 4 且 802.1p 优先级为 1 的报文,以及流量为 40Mbps 的 vlan id 为 4 且 802.1p 优先级为 2 的报文同时从端口 E1/0/8 进入,从端口 E1/0/9 转发时,正确的是 ______ (一项或多项)

A. 80Mbps 报文正常转发
B. 报文流量整形为 65kbps 进行转发
C. 802.1p 优先级 1 的报文在出端口 E1/0/9 全部转发
D. 802.1p 优先级 2 的报文在出端口 E1/0/9 全部转发
E. 802.1p 优先级 1 的报文和 802.1p 优先级 2 的报文在出端口 E1/0/9 都有丢包,转发流量的比例为 5:4
F. 部分配置有误

Explanation:

Exam Code: GB0-391
Q & A: 420 Q&As         Updated:  Oct 08,2026

 

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Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current GB0-391 exam objectives.

Practice Scenario-Based Questions

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Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

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Close Knowledge Gaps

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Exam Code: GB0-391
Q & A: 420 Q&As
Updated:  Oct 08,2026

 

 Access Complete GB0-391 Preparation Material