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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IP Routing Technologies | 20% | - RIP protocol basics and configuration - Routing table principles - Static routing configuration - Introduction to OSPF |
| Topic 2: Getting Started with H3C Network Devices | 10% | - Device file management and system maintenance - Command-line interface basics - H3C Comware operating system |
| Topic 3: Advanced TCP/IP and IP Addressing | 15% | - ARP, ICMP, DNS and DHCP - IPv6 basics and address format - IPv4 addressing and subnetting |
| Topic 4: Computer Network Fundamentals | 10% | - TCP/UDP principles and application - OSI & TCP/IP reference models - LAN & WAN basic concepts |
| Topic 5: LAN Switching Technologies | 25% | - Link aggregation and port security - STP/RSTP/MSTP protocols - VLAN configuration and trunking - Ethernet switching principles |
| Topic 6: Network Security and Management | 10% | - Access control list (ACL) fundamentals - Basic security policies - Device management and troubleshooting |
| Topic 7: WAN Access and Interconnection | 10% | - Common WAN technologies - HDLC and PPP protocols - NAT/PAT configuration |
Question 1
在图中方框处应使用的设备是 ______ 。
A. 路由器
B. 调制解调器
C. CSU/DSU
D. 广域网交换机
Question 2
在路由器的路由表中有一条默认路由,其目的网段和掩码都是 0.0.0.0 ,而其下一跳是路由器的 S0/0 接口,那么下列关于此路由的描述正确的是 ______ 。(多选)
A. 这条路由的优先级有可能是 100
B. 该路由的掩码最短,因此只有在没有其它路由匹配数据包的情况下,数据包才会按照默认路由转发
C. 当路由器收到去往目的地址 120.1.1.1 的数据包时,如果路由器表中没有其他确切匹配项,那么该数据包将匹配此默认路由
D. 这条路由的度量值有可能是 3
Question 3
网络环境如图所示。在路由器 RTA 上做如下 NAT 配置:
[RTA]acl number 2000
[RTA-acl-basic-2000]rule 0 permit source 100.0.0.0 0.0.0.255
[RTA]nat address-group 1 200.76.28.11 200.76.28.20
[RTA]interface Ethernet0/1
[RTA-Ethernet0/1]nat outbound 2000 address-group 1 no-pat
配置后, Client_A 和 Client_B 同时访问 Server ,则此时 RTA 的 NAT 表内容可能为 ______ 。
A. Protocol GlobalAddr Port InsideAddr Port DestAddr Port - 200.76.28.11 --- 100.0.0.2 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:04:00 - 200.76.28.12 --- 100.0.0.1 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:03:59 1 200.76.28.21 1024 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:00:59 1 200.76.28.11 512 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:01:00
B. Protocol GlobalAddr Port InsideAddr Port DestAddr Port - 200.76.28.11 --- 100.0.0.2 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:04:00 - 200.76.28.12 --- 100.0.0.1 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:03:59 1 200.76.28.12 1024 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:00:59 1 200.76.28.11 512 100.0.0.2 512 200.76.29.4 512 VPN: 0, status:NOPAT, TTL: 00:01:00, Left: 00:01:00
C. Protocol GlobalAddr Port InsideAddr Port DestAddr Port - 200.76.28.11 --- 100.0.0.2 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:04:00 - 200.76.28.12 --- 100.0.0.1 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:03:59 1 200.76.28.12 1024 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:00:59 1 200.76.28.11 511 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:01:00
D. Protocol GlobalAddr Port InsideAddr Port DestAddr Port - 200.76.28.11 --- 100.0.0.2 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:04:00 - 200.76.28.12 --- 100.0.0.1 --- --- --- VPN: 0, status: NOPAT, TTL: 00:04:00, Left: 00:03:59 1 200.76.28.12 1023 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:00:59 1 200.76.28.11 511 100.0.0.2 511 200.76.29.4 512 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:01:00
Question 4
客户的网络结构如图所示。
要实现如下需求:
1. Host C 与 Host B 互访
2. Host B 和 Host A 不能互访
3. Host A 和 HostC 不能互访
那么 ______ 。(多选)
A. 只在 MSR-1 的接口 GE0/0 上应用高级 ACL 可以实现该需求
B. 只在 MSR-1 的接口 GE0/0 上应用 ACL 无法实现该需求
C. 分别在两台路由器的接口 GE0/0 上应用高级 ACL 可以实现该需求
D. 分别在 MSR-1 的接口 S1/0 、 GE0/0 上应用高级 ACL 可以实现该需求
Question 5
某网络连接如下所示:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
客户要求仅仅限制 HostA 与 HostB 之间的 ICMP 报文,如下哪些做法是可行的 ? (多选)
A. 在 MSR-1 上配置 ACL 禁止源主机 HostA 到目的主机 HostB 的 ICMP 报文,并将此 ACL 应用在 MSR-1 的 S1/0 的 outbound 方向
B. 在 MSR-1 上配置 ACL 禁止源主机 HostB 到目的主机 HostA 的 ICMP 报文,并将此 ACL 应用在 MSR-1 的 S1/0 的 outbound 方向
C. 在 MSR-1 上配置 ACL 禁止源主机 HostA 到目的主机 HostB 的 ICMP 报文,并将此 ACL 应用在 MSR-1 的 GE0/0 的 outbound 方向
D. 在 MSR-1 上配置 ACL 禁止源主机 HostB 到目的主机 HostA 的 ICMP 报文,并将此 ACL 应用在 MSR-1 的 GE0/0 的 outbound 方向
Solutions:
| Question 1 Answer: A | Question 2 Answer: A,B,C,D | Question 3 Answer: B | Question 4 Answer: A,C,D | Question 5 Answer: A,D |
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