200-301題庫問題；分享題庫。

Xiang_x2

請大神幫忙我解惑一下，謝謝
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QUESTION 121
Which two encoding methods are supported by REST APIs? (Choose two)
A. YAML
B. JSON
C. EBCDIC
D. SGML
E. XML
Correct Answer: BE
這題也有人解說A(YAML)也是答案，請問正確答案是A、B、E? 還是B、E而已?

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QUESTION 137
If a notice-level messaging is sent to a syslog server, which event has occurred?
A. A network device has restarted
B. An ARP inspection has failedC. A routing instance has flapped
D. A debug operation is running
Correct Answer: C
這題有人講解說up/down、restart 是notification級別的，而C是routing不穩，路徑變更不會發訊息。
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QUESTION 144
Refer to the exhibit,if the network environment is operating normally,which type of device must be connected to interface fastethernet0/1?A. DHCP client

                               
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A. DHCP client
B. PC
C. router
D. access point
Correct Answer: C
有兩派人說是C或D。
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QUESTION 147
Several new coverage cells are required to improve the Wi-Fi network of an organization. Which two standard designs are recommended? (choose two.)
A. 5GHz provides increased network capacity with up to 23 nonoveriapping channels.
B. For maximum throughput, the WLC is configured to dynamically set adjacent access points to the same channel.
C. 5GHz channel selection requires an autonomous access point.
D. Adjacent cells with overlapping channels use a repeater access point.
E. Cells that overlap one another are configured to use nonoveriapping channels.
Correct Answer: AC
別的版本的題庫答案為B、D，但有人講解為A、E，而這題庫答案卻是A、C，所以我很亂不知道答案是甚麼。
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QUESTION 148
The SW1 interface g0/1 is in the down/down state.which two configurations are valid reasons for the interface conditions?(choose two)
A. There is a duplex mismatch
B. There is a speed mismatch
C. There is a protocol mismatch
D. The interface is shut down
E. The interface is error-disabled
Correct Answer: BE
0602題庫的答案為D、E，而大大講解答案為B、E，跟這題庫給的答案一樣。是說D會顯示administratively down/down，所以給出B、E答案。

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QUESTION 190
An engineer must configure an OSPF neighbor relationship between router R1 and R3 The authentication configuration has been configured and the connecting
interfaces are in the same 192.168 1.0/30 sublet. What are the next two steps to complete the configuration? (Choose two.)
A. configure the hello and dead timers to match on both sides
B. configure the same process ID for the router OSPF process
C. configure the same router ID on both routing processes
D. Configure the interfaces as OSPF active on both sides.
E. configure both interfaces with the same area ID
Correct Answer: AE

別的版本答案為D、E，但我認為A、D、E是不是都可以?
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QUESTION 203
Which two WAN architecture options help a business scalability and reliability for the network? (Choose two)
A. asychronous routing
B.  single-homed branches
C. dual-homed branches
D. static routing
E. dynamic routing
Correct Answer: AC

這題有大大解說答案為C、E，因為A這答案會讓路由出去跟進來路徑不一樣，導致NAT失敗，所以選擇C答案連接多條線路。




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云中漫步

203
C. dual-homed branches
E. dynamic routing

答案分别为双向支持和动态路由。双向支持指的是一个分支机构连接到两个独立的WAN连接，可以提高可靠性和可扩展性。动态路由则是利用路由协议来自动选择最优路径，这可以提高网络的可靠性和可扩展性。

Xiang_x2

云中漫步

121The two encoding methods supported by REST APIs are JSON and XML. These methods are commonly used because they are both human-readable and machine-readable, making them well-suited for use in web-based APIs. JSON and XML are also widely supported by a variety of programming languages, which makes it easy to integrate REST APIs into existing applications.

云中漫步

137如果syslog服务器收到了notice-level消息，说明发生了以下情况：

A. 网络设备重新启动了
B. ARP检查失败
C. 路由实例发生了抖动
D. 正在运行调试操作。

Notice-level消息表示网络设备出现了一些异常情况，但是并不严重，不会影响网络的正常运行。

云中漫步

147 答案是A和E，因为这两个选项提到了5GHz频段提供了更多的频道，以及重叠覆盖小区应该配置非重叠频道。在这种情况下，这两个选项都是正确的建议，因为它们都可以提高Wi-Fi网络的效率和性能。

云中漫步

148
A. 有一个双工不匹配
B. 速度不匹配

两个可能的原因是双工不匹配和速度不匹配。当双工模式不匹配时，设备无法正常收发数据；当速度不匹配时，设备无法按照相同的速度收发数据，也无法通信。其它选项（协议不匹配、接口关闭和接口错误禁用）并不会导致接口状态为 down/down。

云中漫步

190配置两个路由进程的相同路由器 ID 和配置两侧的接口作为 OSPF 活动是可以解决 OSPF 邻居关系的下一步。为了确保邻居关系能够成功建立，还需要配置在两侧相同的 hello 和 dead 定时器，以及相同的路由器 OSPF 进程 ID。在这两个步骤完成后，邻居关系应该会建立成功。

purecat

flzhao001

garen1243

kevin870504

云中漫步 发表于 2022-11-3 22:27
203
C. dual-homed branches
E. dynamic routing

感謝回覆!!非常清楚~幫助很大

my282709305@163

题库很好啊