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How do I implement the ARP cache? Is a static table sufficient? Do I need a hash table?

Virtual Router Assignment FAQ
A static, hard-coded ARP cache is NOT acceptable. You should have a sufficiently sized (e.g. 100) entry table that is dynamically filled with values when ARP replies are received. You do NOT have to implement any sophisticated search alogrithm such as hashing or RB Trees, a linear search is perfectly acceptable.
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What do I use for my hash table?

CS 241 Frequently Asked Questions (FAQs)
Your hashtable will be an array of objects which hold a key and a DataRecord. (Suppose that you define a DictionaryRecord class. In Java remember that when you have an array of type DictionaryRecord, each entry of the array is really a reference to a DictionaryRecord). Yes. The Terminal class was modified to do this.
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what is the difference between hash map and hash table?

J2EE FAQ
Latest Answer: Hasmap is not syncronized and hash table is synchronized, Hashmap allows num values in the key va... Latest Answer: We are mainly using the design patters for the sepration of physical speration rather than an logica... Latest Answer: From Jsp to Servlet the communication is possible by forwarding the request by the synatax forward m... in JDBC what is "thin" and "thick" clients2.
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When and how should I use static ARP?

SunWorld - The Solaris Security FAQ
ARP is the protocol used to associate IP and Ethernet addresses. Machines that share a wire (and have no routers between them) know each others ARP addresses. If one machine is replaced with another, the ARP addresses are usually different. By default, Solaris machines dynamically determine ARP addresses. The arp command can be used to statically set ARP table entries and flush all other entries.
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For the hash table, how do I check for empty places in the list?

FAQ
A list can't have an 'empty' place--when something is erased from the list it shrinks so that all places are full. The insert function is therefore easier than that in linearHash.h.
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why is a hash table needed?

Assignment 3 - FAQ
why can't we just have a 6-cluster array and another attributes array in the size of 6 which will indicate all parameters needed (cluster id, when it was last used, etc...) no. each file in the system has an MFT record that represent it. The record becomes a base record only if you need more then one MFT record to represent the file.
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How big can the Cache Table get?

Omni Security F.A.Q. frame
The Cache table can get fairly large depending on the number of Users, Companies and Classes your system has. To calculate the maximum number of potential children/nodes which may be cached please use the following formula: Number of Entities = (Number of valid User/Company combinations (only those with access) + Number of Classes) If this number is greater than 4 million, you may what to change the Caching options. Please note that version 6.
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Is the data in the Cache Table valuable?

Omni Security F.A.Q. frame
No, the only reason it is normally kept between uses of Omni Security is to save having to populate the table again. You do not have to backup the table if you don't want to. You can delete the contents of the cache table, it will just be created next time you use Omni Security.
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Can I move a cache once I find it?

Geocaching FAQ - Frequently Asked Questions About Geocaching
Don't move the cache! Responsible cache owners often check on their caches and would be alarmed to discover that it is missing. alternative would be to have a trackable item, which is an item that you can move from cache to cache. An example of this is a candle that has traveled from Australia to Arizona, and a Mr. Potato head that leaps from cache to cache.
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Do I need a static IP address for my site?

Web Hosting Universe -hosting FAQ host frequently asked ques...
Maybe. There are some advantages to having a unique IP for your site. When you change servers, you can point your users to a new IP, so they don't have to wait for the domain name change to propagate. With a static IP, it can also be simpler to upload and test your site before transferring the domain name to a new server. Setting up SSL is also much simpler. You may also not want to share your IP with some sites that could lead to your site being banned by search engines or spam lists.
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Is there a sufficient water table in the countries you are working in?

charity: frequently asked questions
Yes. Surprisingly, some countries in Africa have a better water table than the United States or Europe. The problem is that they often don’t have the resources to tap into it.
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What is ARP?

VisNetic Mail Server, Mail Flow, WinRoute Firewall, DNS2Go -...
ARP (Address Resolution Protocol) is a protocol for mapping an Internet Protocol address (IP address) to a physical computer address that is recognized in the local network. ARP will translate your IP Address to the MAC Address that is configured on your computer.
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When should I use a hash table instead of an association list?

Kantrowitz & Margolin comp.lang.lisp FAQ
Both association lists (alists) and hash tables may be used to represent tabular data. Hash tables have an O(1) running time and alists an O(n) running time, so hash tables are ultimately more efficient than alists. However, if the alists are small, they can be more efficient than hash tables, which have a large initial overhead. Alists can sometimes be more efficient if the keys are sorted according to frequency, with the most heavily accessed keys appearing at the front of the list.
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Is this something that I need to implement aswell?

FAQ for IP Lab #1
The code says: dataoffset, /* offset within app packet for next fragment */ offset_in_datagram; /* fragment offset to be written in new fragment header */ A. /* dataoffset: offset within app packet for next fragment. 16 bits */ dataoffset = 0; /* frag offset in datagram: consider old fragment offset too. 16 bits.
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How do we implement the arp queue timeout? Should we use multiple threads or a timer?

Virtual Router Assignment FAQ
You actually can take the simple solution and only check the arp queue timeout whenever another packet is received. This is not entirely correct behaviour as a packet could be in the arp queue for a very long time. But usually retransmits will arrive soon after the first packet, it performs pretty well in reality.
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What if I need dynamic values in a static Log4perl configuration file?

Log::Log4perl::FAQ - Frequently Asked Questions on Log::Log4...
of Log::Log4perl 0.28, every value in the configuration file can be specified as a Perl hook. So, instead of saying log4perl.appender.Logfile.filename = test.log you could just as well have a Perl subroutine deliver the value dynamically: log4perl.appender.Logfile.filename = sub { logfile(); }; given that logfile() is a valid function in your main package returning a string containing the path to the log file. Or, think about using the value of an environment variable: log4perl.appender.DBI.
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How often do we need to regenerate the static pages?

Frequently Asked Questions @ Static Page Builder
We recommend that you regenerate your pages on a monthly basis. This allows you to update your copy and to put in new data and content.
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Will I need a visa, or will a passport be sufficient?

Study - Learn Portuguese Language in Brazil - Portuguese Sch...
Students of most nationalities will need a visa to come to Brazil. Visas are issued for 90 days and can be renewed for another 90 days. After that, the student would need to leave the country in order to obtain another visa. You should contact the Brazilian embassy in your country in order to get a visa.
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Do I need to including resizing the Bloom table in my implementation?

CSE 241 Frequently Asked Questions (FAQs)
No, you do not. In fact, with just the Bloom filter itself, it would not be possible to resize the table, since the elements are not stored. The only way that you could resize the Bloom filter, would be to have access to the open addressing bucket mapping so that you could iterate through all elements and reinsert them in the Bloom filter. However, you are not expected to do this for the lab.
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Do you need a table and/or table cloth?

Extensive List of Questions To Ask A DJ
I realize that you have enough to worry about without the added stress of helping us by providing a table. I have purchased equipment that will allow me to perform my services without you providing me with a table. If the banquet hall gives me a table, I will usually use it to lay out my CD cases.
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What is the best way to implement Pragma: No-cache?

OWASP Application Security FAQ - OWASP
Pragma: No-cache directive is used in the meta tag in the header, which is normally at the beginning of an HTML webpage. When an HTML code is parsed (in a top-to-bottom approach), the browser looks for the presence of the page in the cache as soon as it reads the Pragma directive.
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How do I implement a custom listener to listen to cache events?

Frequently Asked Questions about JBoss Cache
Either implement org.jboss.cache.CacheListener or extend org.jboss.cache.AbstractCacheListener and override for the events you are interested in. You can then register the listener using the org.jboss.cache.Cache.addCacheListener() API. Yes, you can. Originally, cache Marshalling was designed as a workaround for those replicated caches that upon state transfer did not have access to the classloaders defining the objects in the cache.
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Q5. Do I need to clear my cache?

CPF Board - Frequently Asked Questions (FAQS) On e-Helpdesk ...
You may like to clear your cache to ensure that all components from the e-Helpdesk programme were removed.
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What should I NOT put in a cache?

Buxley's Geocaching Waypoint - Frequently Asked Questions
Whole families go geocaching together so items should be safe and legal for all. No alcohol, drugs, explosives, Menudo tapes, etc. Use common sense!
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Bibliomancy and beyond...
Once you've visited the website and selected which cache you'd like to visit, log the coordinates into your GPS. You'll then be able to see how far away your destination is from your current location, and the direction you'll need to go to get there. Start moving in that direction, and before you know it you'll practically be right on top of it. That's when the real fun begins.
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