The answer is a.two
In general, use no more than two font types in a worksheet.
"Sleeping is an effect of <span>Depressants, but agitation may cause a person to wake up"</span><span />
This may be considered particularly appropriate since, due to the room-based nature of traditionalMUDs<span>, ranged combat is typically </span>difficult<span> to implement, resulting in </span>most MUDs<span> equipping characters mainly with close-combat weapons.</span>
Answer:
Deleting a record on a B-tree consists of three main events:
- Searching the node where the key to be deleted exists
- Deleting the key
- Balancing the tree if required
Explanation:
q = NULL;
p = tree;
while (p) {
i = nodesearch(p, key);
q = p;
if (i < used(p) -1 && key == k(p,i)) {
found = TRUE;
position = i;
break;
}
p = son(p,i);
}
if (!found)
else if (subtree(p)) {
if (used(p) > ((n-1)/2)+1)
delkey (p, position, key);
else {
replace (p, position, fsucc(p));
p0 r1 p1 r2 p2 r3 ……. pn-1 rn-1 pn
q = &fsucc(p);
qpos = index of fsucc;
if (used(rbrother(p)) > ((n-1)/2)+1)
replace (q, qpos, sonsucc(q));
else
while (q && used(q) < (n-1)/2) {
concatenate(q, brother(q));
q = father(q);
}
}
}
else
delkey(p, position, key);
}
Answer:
Case-based reasoning.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.
Case-based reasoning is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it. It is typically based on cognitive science and artificial intelligence.
