2. 计算机
  3. As a CCNA candidate, you will be expected to know the OSI model very well. Which of the following are associated with the applic

As a CCNA candidate, you will be expected to know the OSI model very well. Which of the following are associated with the applic

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问题 As a CCNA candidate, you will be expected to know the OSI model very well. Which of the following are associated with the application layer (layer 7) of the OSI model? (Choose two)
A. TCP
B. Telnet
C. FTP
D. Ping
E. IP
F. UDP
选项
答案B,C
解析 Explanation:
The application layer is the top layer of the OSI model and is used to describe the end user applications that can be used over a network.

Layer Name Examples
Application (layer 7) Telnet, HTTP, FTP, WWW browsers, NFS, SMTP gateways, SNMP

Incorrect Answers:
A. TCP resides at layer 4.
D. ARP is a function of the data link layer, which is layer 2.
E. IP is used at layer 3 (network layer).
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