H12-211-ENU HCNA-HNTD questions

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1. Which parts of a complete data communication system consists of ? ( Please select 4 answers )
A. Sender
B. recipient
C. Media
D. card
E. Agreement
Answer: A B C E
2. Message from a sender to a receiver elapsed between the physical channel is called ( )
A. Agreements
B. Signal
C. Media
D. Equipment
Answer: C
3. Two devices can transmit or receive data , but not both simultaneously.which working style is this?
A. simplex
B. half-duplex
C. full-duplex
D. auto-negotiation
Answer: B
4. Divided according to the network topology structure, the network can be divided into (please select 4
answers)
A. Bus
B. Star
C. Tree
D. Ring
E. Grid
Answer: A B C D
5. The following topology structure, which is of the highest reliability?
A. Bus
B. Star
C. Ring
D. Grid
Answer: D