Last Updated: Aug 19, 2026
No. of Questions: 475 Questions & Answers with Testing Engine
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| Section | Weight | Objectives |
|---|---|---|
| Routing and Switching Service Analysis | 20% - 25% | - Routing Protocol Optimization - Switching Performance Analysis - Convergence Optimization |
| High Availability and Reliability | 10% - 15% | - Network Resilience Design - Redundancy Technologies - Fast Recovery Mechanisms |
| Network Monitoring and Troubleshooting | 20% - 25% | - Performance Monitoring Tools - Fault Detection - Traffic Analysis - Root Cause Analysis |
| Security and Service Assurance | 10% - 15% | - Network Security Optimization - Service Availability Assurance - Risk Identification and Mitigation |
| Network Service Optimization Fundamentals | 10% - 15% | - NSO Concepts - Service Optimization Principles - Network Performance Indicators |
| Quality of Service Optimization | 15% - 20% | - QoS Models - Congestion Management - Bandwidth Optimization - Traffic Classification |
1. 两台安全网关的配置分别为:
RTA
[RTA] ike peer 123
[RTA-ike-peer-123] pre-shared-ke simple 123
[RTA-ike-peer-123] remote-address 10.2.1.2
[RTA-ike-peer-123] local-address 10.2.1.1
[RTA-ike-peer-123] quit
[RTA] ipsec proposal 1
[RTA-ipsec-proposal-1] quit
[RTA] acl number 3000
[RTA-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.3.1.0 0.0.0.255
[RTA] ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-1-1] securit acl 3000
[RTA-ipsec-polic-isakmp-1-1] ike-peer 123
[RTA-ipsec-polic-isakmp-1-1] proposal 1
[RTA-ipsec-polic-isakmp-1-1] quit
[RTA] interface Serial0/2/1
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA-Serial0/2/1] ipsec polic 1
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.1.1.2 255.255.255.0
RTB :
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 10.2.1.1
[RTB-ike-peer-123] local-address 10.2.1.2
[RTB-ike-peer-123] quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-1] quit
[RTB] acl number 3000
[RTB-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.3.1.0.0.0.0.255
[RTB] ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-1-1] securit acl 3000
[RTB-ipsec-polic-isakmp-1-1] ike-peer 123
[RTB-ipsec-polic-isakmp-1-1] proposal 1
[RTB-ipsec-polic-isakmp-1-1] quit
[RTB] interface Serial0/2/1
[RTB-Serial0/2/1] ip address 10.2.1.2 255.255.255.0
[RTB-Serial0/2/1] ipsec polic 1
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.1.3.1 255.255.255.0
由此可知。
A) 任何一方发起的 SA 协商都可以成功
B) 只有从 RTA 向 RTB 发起的 SA 协商才可以成功
C) 任何一方发起的 SA 协商都不能成功
D) 只有从 RTB 向 RTA 发起的 SA 协商才可以成功
2. 下列属于保障数据完整性手段的有。
A) 对称加密
B) 数字签名
C) 数字摘要
D) 非对称加密
3. VPN 组网中,用户的私网报文携带了两层 MPLS 标签,该私网报文可能在下面哪个报文转发阶段。
A) 报文由公网出口 PE 发给目的用户侧 CE 设备的时候
B) 报文由源用户侧 CE 发往公网 Ingress PE 设备的时候
C) 报文由公网倒数第二跳 P 设备发给公网最后一跳 PE 设备的时候
D) 报文由公网 Ingress PE 发给 P 设备的时候
4. QoS 可以通过决定报文属于哪个特定的行为集合。(选择一项或多项)
A) 匹配 DSCP
B) 匹配 IP Precedence
C) 匹配 COS
D) 在接口配置信任端口优先级或报文优先级
E) 匹配 802.1x
F) 匹配 IP 地址、 MAC 地址、 VLAN 号、协议类型、传输层端口号
5. 下列宽带接入传输介质中,比较适合用来对没有传统通信线路的偏远地区进行覆盖的包括
A) 同轴电缆
B) 电力线路
C) 铜质双绞线
D) 光纤
E) 无线电波
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B,C | Question # 3 Answer: D | Question # 4 Answer: A,B,C,D,F | Question # 5 Answer: B,E |
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