Which layer does not exist in TCP/IP model, but exists in OSI model
A. Network
B. Application
C. Internet
D. Transport
查看答案
Which statement about ISO model is correct
A. ISO model is better than TCP/IP model
B. ISO model has seven layers
C. ISO model does not use layered structure
D. Application layer consists of differet software such as Web browsers
Is University network a：
A. PAN
B. WAN
C. MAN
D. LAN
What is the topology of a LAN using a router to connect several PCs in a house.
A. Star
Bus
C. Mesh
D. Ring
For switching
A. Packet swiching is more reliable than circuit swiching
B. Circuit swiching requires path setup in advance
C. Packet swich is more likely to waste bandwidth
D. Packet swiching is less efficient than circuit swiching
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