What are the responsibilities of the OSI model Physical layer?
What will be an ideal response?
Layer 1 in the OSI model is the Physical layer. It has the following responsibilities:
• Definition of the physical characteristics of the network hardware, including cable and connectors
• Representation of binary digits as voltages (encoding)
• Transmission of signals on the wire
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An interface may contain:
(a) instance variables (b) primitive variables (c) constant variables (d) all of the above
The system will be in a safe state if ________.
Consider the following system state:
a) process P1 is allocated one additional resource
b) process P2 is allocated two additional resources
c) process P3 is allocated three additional resources
d) process P2 is allocated one additional resource
A system administrator has a database server that crashes at random times. No changes have been made to either the server's software or hardware. Which of the following is the FIRST step the administrator should take towards resolving this issue?
A. Establish an action plan. B. Perform a root cause analysis. C. Document the findings. D. Identify the problem and scope
The _________ was a mechanical computer designed, but not built, in the early nineteenth century by mathematician Charles Babbage.
a. Analytical Engine b. ENIAC c. Macintosh d. Turing Machine