2020 数字通信原理(海南热带海洋学院) 最新满分章节测试答案

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-03-04到2020-07-02
本篇答案更新状态:已完结

第一章 数据通信、数据网络和因特网 第4周测试

1、 问题:Data transferred in the Data Link Layer is in the form
选项：
A:Physical
B:Transport
C:Network Network layer
D:MAC sublayer of the data link layer
答案: 【Network Network layer】

2、 问题:Which one of the following networking terms is not associated with the same OSI layer as the others?
选项：
A:Router
B: Packets
C:Tcp
D: IP
答案: 【Tcp】

3、 问题:Which of the following functions is not performed by TCP?
选项：
A:Flow control
B:Sequencing
C:Error checking
D:Subnetting
答案: 【Subnetting】

4、 问题:Bit synchronization is handled at which layer?
选项：
A:Data link
B:Transport
C:Session
D:Physical
答案: 【Physical】

5、 问题:Identify the order of the 5 step encapsulation? 1. Create the segment 2. Convert the Frame to bits 3. Create the packet 4. Create the frame 5. user creates the data
选项：
A:1,2,4,2,5
B:2,1,3,4,5,
C:5,1,3,4,2,
D:5,3,4,1,2,
答案: 【5,1,3,4,2,】

6、 问题:Which layers of the OSI model are included in the lower layers？
选项：
A:Application, Session, Presentation
B:Physical, Transport, Data link, network
C:Data link, physical, Network
D:Session, Data link, Physical
答案: 【Physical, Transport, Data link, network】

7、 问题:IP is implemented at which OSI model layer?
选项：
A: Transport
B:Session
C: Data link
D:Network
答案: 【Network】

8、 问题:Where is encapsulation used in the osi model?
选项：
A:All seven layers of the receiving station
B: At peer layers of the sending station and receiving station
C:Only at the Network layer
D:At the sending Station
答案: 【At the sending Station】

9、 问题:What is the Protocol Data Unit (PDU) employed at the Data Link Layer?
选项：
A: Bits
B:Frames
C: Packets
D:Segments
答案: 【Frames】

10、 问题:Which of the following protocols are examples of TCP/IP network access layer protocols?
选项：
A:Ethernet
B:HTTP
C:UDP
D:TCP
答案: 【Ethernet】

11、 问题:Transport layer protocols that establish a connection with another node before they begin transmitting data are known as :
选项：
A:Connectionless protocols
B: Syn-oriented protocols
C:Connection-oriented protocols
D:Ask.oriented protocols
答案: 【Connection-oriented protocols】

12、 问题: A network layer protocols that reports on the success or failure of data delivery is :
选项：
A:IP
B: TCP
C: ARP
D:ICMP
答案: 【ICMP 】

13、 问题:Encryption takes place at which layer?
选项：
A:Application
B:Presentation
C:Session
D:Transport
答案: 【Presentation】

14、 问题: Which layer establishes, maintains, and terminates communications between applications located on different devices?
选项：
A: Application
B:Presentation
C:Session
D:Network
答案: 【Session】

15、 问题:Which layer uses the Segments as a Protocol Data Unit (PDU)?
选项：
A: Network
B:Physical
C:Data link
D: Transport
答案: 【 Transport】

16、 问题:Which OSI layer defines the standards for cabling and connection ?
选项：
A:Layer 1
B:Layer 2
C:Layer 3
D:Layer 4
答案: 【Layer 1】

17、 问题:Packets are found at which layer?
选项：
A:Data link
B:Transport
C:Network
D:Session
答案: 【Network】

18、 问题:What are the OSI layers above and below the Session layer？
选项：
A:Application, presentation, session, transport, network, data link, physical
B:Session, presentation, data transport, MAC, network, physical
C:Physical, data link, network, transport, session, presentation, application
D:Presentation, application, session, network, transport, data link, physical
答案: 【Application, presentation, session, transport, network, data link, physical】

19、 问题: What are the OSI layer above and below the Session layer.
选项：
A: Application and Physical layer
B:Application and Session layer
C: Presentation and Transport layer
D:Transport and Physical layer
答案: 【 Presentation and Transport layer】

20、 问题:. In the Data link layer for the OSI model, error checking is accomplished by a:
选项：
A: Transport
B:Network
C:Session
D:Data link
答案: 【Data link】

21、 问题: Error detection and recovery takes place at which layer?
选项：
A:Transport
B:Presentation
C:Data link
D:Network
答案: 【Data link】

22、 问题:Which layer handles the formatting of application data so that it will be readable by the destination system?
选项：
A:Application
B:Presentation
C:Transport
D:network E. Data link
答案: 【Presentation】

23、 问题:The network layer uses physical addresses to route data to destination hosts.
选项：
A: True
B:False
C:字数补丁
D:字数补丁