Scna 真题系列 1 ----大家共同分享参与 (310-043)

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1 At the Transport layer either UDP or TCP is selected.
False
True

2 Which of the following statements describes a star topology?

a It is more difficult to troubleshoot than a ring topology.
b It is less reliable than a ring topology.
c It requires more cabling than a bus topology.
d All network computers get equal network access through the use of CSMA/CD.

3 True/False: 802.3 can not "see" upper layers??


4  which layer deals with keepalives ?
a. Physical
b. Data-link
c. Network
d. Transport


5. What does the MAC sublayer of the Data Link Layer do ? (choose all that apply)
a. builds frames
b. checks to see that nothing got damaged in transit by CRC
c. determines "which machine goes first on the wire"
d. provides path to the destination host
e. Gets data on and off the wire