With regard to Ethernet media access methods, which of the following are true?
(Choose all that apply.)
A device waits for an electronic signal before transmitting.
B. A device listens and waits until the media is not busy before transmitting.
C. All devices on an Ethernet segment see data that passes on the network medium.
D. Only the sender and the receiver devices see data that passes on the network medium.
Ethernet networks allow you to configured devises with higher transmission priority.
查看答案
A receiving host has failed to receive all of the segments that it should acknowledge.
What can the host do to improve the reliability of this communication session?
A. Start a new session using UDP
B. Obtain a new IP address from the DHCP server
C. Use a different source port for the session
Decrease the sequence number
E. Decrease the window size
At which layer of the OSI model does the protocol that provides the information displayed
A. Transport
B. Physical
C. Application
Data link
E. Network
根据FIDic《生产设备和设计—施工合同条件》,承包商应在()天内向设备监理工程师发生索赔通知。
A. 15
B. 21
C. 28
D. 30
After logging into a router and typing in a few show commands, you press the up arrow key.
A. It will recall the previous command line
B. It will move the cursor one line up
C. It will redisplay the current command line
D. It will capitalize the command line
E. None of the above