What are some of the basic functions of a network router?
What will be an ideal response?
ANSWER: Although any one router can be specialized for a variety of tasks, all routers can do the following:
* Connect dissimilar networks, such as a LAN and a WAN, which use different types of routing protocols.
* Interpret Layer 3 and often Layer 4 addressing and other information (such as quality of service indicators).
* Determine the best path for data to follow from point A to point B. The best path is the most efficient route to the message's destination calculated by the router, based upon the information the router has available to it.
* Reroute traffic if the path of first choice is down but another path is available.
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A(n) ____________________ circuit is a super-thin slice of superconducting material packed with microscopic circuit elements, such as wires, transistors, capacitors, logic gates, and resistors.
Fill in the blank(s) with the appropriate word(s).
A program might call a bank-account object’s deposit ________ to increase the account’s balance.
a. attribute b. method c. class d. function
The GridView control provides all the following features except __________.
a. it’s designed to display only one row at a time b. you can sort on any column c. you can select the order in which columns appear d. you can format data within the columns
Answer the following statements true (T) or false (F)
1. Value checks are usually performed for any data. 2. A value check is used when one element has a relationship with another one. 3. A mathematical process of assuring data accuracy involves multiplying each of the digits in the original code by some predetermined weights, summing these results, and then dividing this sum by a modulus number. 4. Use the stored data system to prevent the mistake that the intended number 53411 is typed in as number 54311 instead. 5. A method for validating credit cards uses a check digit formula called the Kendall formula.