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Answer:
b. LinkedHashSet
Explanation:
A LinkedHashSet is an ordered version of HashSet that maintains a doubly-linked List across all elements. When the iteration order is needed to be maintained this class is used. LinkedHashSet maintains a linked list of the entries in the set, in the order in which they were inserted.
<span>If a DNS packet using UDP is lost this problem must be handled at the application layer. If an answer is not received after some period of time the specific application may choose to resend the DNS query. I can go much more into detail but this should answer your question. If you need more detail just ask.</span>
Answer:
The function of the tab is used to advance the cursor to the next tab key.
Answer: HUB
Explanation:
A Hub is a network device, that acts only in layer 1 (Physical layer) forwarding all traffic that reaches to the input port, to all output ports at once, without processing the received data in any way that could modify them.
It behaves like it were a multiport repeater (which has only one output port).
