After the timeout of an RPC call to access a file on a hard-mounted file system the NFS client
module does not return control to the user-level process that originated the call. Why?
What will be an ideal response?
Many Unix programs (tools and applications) are not designed to detect and recover form error conditions
returned by file operations. It was considered preferable to avoid error conditions wherever possible, even at
the cost of suspending programs indefinitely.
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In a gossip system, a front end has vector timestamp (3, 5, 7) representing the data it has received from members of a group of three replica managers. The three replica managers have vector timestamps (5, 2, 8), (4, 5, 6) and (4, 5, 8), respectively. Which replica manager(s) could immediately satisfy a query from the front end and what is the resultant time stamp of the front end? Which could incorporate an update from the front end immediately?
What will be an ideal response?
The ____________________ criteria filter requires that the records displaying begin with the specified text string.
Fill in the blank(s) with the appropriate word(s).
?The most popular formats for pictures on the web are JPG, GIF, and ____.
A. ?BMP B. ?PNG C. ?TIFF D. ?MP3
As part of unified communications services, QoS must be implemented. DSCP and CoS map to which of the following OSI layers? (Select TWO)
A. Layer 1 B. Layer 2 C. Layer 3 D. Layer 4 E. Layer 5