Answer:
C.A subscript cannot be an expression
Explanation:
The option C (A subscript cannot be an expression) is false
File maintenance supports adding, modifying, or deleting records, as well as creating backup copies of the database
Answer:
Drive Wipe F is correct
Explanation:
Drives content is virtual so it wouldn't work to shred or incinerate it. overwriting it wouldn't work to get rid of files exactly. it might get rid of the files but it would replace the files with other files.
Answer:
Chord is a set of rules for a peer-to-peer distributed hash table it collects key-value sets by allotting keys to several computers (known as "nodes"); a node will collect the values for all the keys for which that is reliable. Chord defines how keys are allocated to the nodes, and how a node can determine the value for a distributed key by first locating the node liable for such key.
Explanation:
A chord is a peer-to-peer lookup service. It Resolves the difficulty of establishing a data item in a combination of shared nodes, considering various node arrivals and removals The most crucial operation in most peer-to-peer method is the efficient position of data objects.
It is able of supporting only one operation i.e. given a key, it maps the key on a link.
Algorithm:
Algorithm shows working of the chord:
// x is a node used to find successor of id
x.find_successor(id)
if (id (x; successor])
return successor;
else
// query is being delivered around the circle
entrance successor.find_successor(id);
