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The Front Side Bus
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∙ 14y ago
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What best describes how telephone calls are carried over data networks and the Internet?
The telephone call has been transmitted over data networks/internet.
Refers to the amount of data that can be transmitted over a communications medium at one time?
HUB
What is packet oriented data service?
A method of data transmission in which small blocks of data are transmitted rapidly over a channel dedicated to the connection only for the duration of the packet's transmission.
What hardware inisde a personal computer provides the ability to acess data transmitted over a network?
To access a network, some type of network card must be installed in the computer.
What is data sent around the internet in?
Data is sent around the internet in protocol stacks. This is built into the computer's operating system. The protocol stack translates the message from alphabetic text, into electronic signals transmitted over t he internet, and back to alphabetic text.
What does TCP breaks data into?
Data transmitted over the Internet is broken into Packets when transmitted over the Internet or other network.
What best describes how telephone calls are carried over data networks and the Internet?
The telephone call has been transmitted over data networks/internet.
Which of the following can be used to monitor and capture data that is transmitted over a network?
packet sniffer
What is write-through in memory caches?
When a datum is written to the cache, it must at some point be written to the backing store as well. The timing of this write is controlled by what is known as the write policy. In a write-through cache, every write to the cache causes a write to the backing store. Alternatively, in a write-back cache, writes are not immediately mirrored to the store. Instead, the cache tracks which of its locations have been written over (these locations are marked dirty). The data in these locations is written back to the backing store when those data are evicted from the cache. For this reason, a miss in a write-back cache will often require two memory accesses to service: one to retrieve the needed datum, and one to write replaced data from the cache to the store.The preceding information was obtained from the related link at the left.Write Back - Data is written first to the cache, then to the logical drive for better performance. The Promise VTrak has a cache backup battery to protect data in the cache from a sudden power failure.Write Thru - Also written as "Write Through". Data is written to the cache and the logical drive at the same time for safer operation. No battery backup is needed since data is written to the drives immediately.
Which hashing algorithm is used to verify the integrity of data that has been transmitted over a network?
MD5
Why is fax slow?
because it is converting the image on the fax down to data that can be transmitted over a phone line.
Refers to the amount of data that can be transmitted over a communications medium at one time?
HUB
What is packet oriented data service?
A method of data transmission in which small blocks of data are transmitted rapidly over a channel dedicated to the connection only for the duration of the packet's transmission.
What is the differnece in how voice is transmitted over a PSTN and how voice is transmitted over an IP network?
The difference: With PSTN, the voice is transmitted through the network of cables. While with VoIP is transmitted through the internet. This is the main difference between the two communication systems.
What types of data can be transmitted over a network?
Basically, any type of data. Data stored in computers is stored as 1's and 0's; such data ("digital data") can be encoded in such a way that it represent a wide variety of types of data, such as documents, images, sounds, videos, computer programs, and probably several other types of information. Any such data can be transmitted over a network. However, the network may impose a limit on how fast such data can be transmitted - or more accurately, with what bandwidth (measured in bits per second or some multiple, for example, Mbps). This may make it impractical, for example, to transmit high-quality movies over certain slower networks.
What is a basic definition of cache memory on a computer?
A cache is a place to store recently used data. The cache is comprised of faster memory than the memory it caches. The philosophy is that memory that is used is more apt to be used again, so the memory is stored in cache using a most recently used algorithm. This results in faster performance.
What is cache memory?
A small amount (normally less than 1MB) of high-speed memory residing on or close to the CPU. Cache memory supplies the processor with the most frequently requested data and instructions. Level 1 cache (primary cache) is the cache closest to the processor. Level 2 cache (secondary cache) is the cache second closest to the processor and is usually on the motherboard.AnswerA cache, in computer terms, is a place to store information that's faster than the place where the information is usually stored. Cache memory is fast memory that is used to hold the most recently accessed data in slower main memory. The idea is that frequently accessed data will stay in cache, which allows the CPU to access it more quickly, which means it doesn't have to wait for the data to arrive.In reference to your processor, the Cache Memory is the Processor's internal quick-hand storage that it uses for things that it's currently processing at that given time.As with most things, the more cache memory a processor has, it will usually run smoother and faster than one with less of about the same operating frequency.AnswerCache memory is usually "On Die" which means it is in the processor chip, which allows it to 'talk' with the processor direct at a much higher speed than standard RAM.cache is a small chip, that's usually placed inside the CPU or sometimes its right next to it and is responsible for providing direct access to the commonly used programs, rather than going back to the hard disk and ram again and again so cache makes it more fast than RAM, you know!!!AnswerPronounced cash, a special high-speed storagemechanism. It can be either a reserved section ofmain memory or an independent high-speed storage device. Two types of caching are commonly used inpersonal computers: memory caching and disk caching.A memory cache, sometimes called a cache store orRAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory. Memory caching is effective because mostprograms access the same data or instructions over and over. By keeping as much of this information as possible in SRAM, the computer avoids accessing the slower DRAM.Some memory caches are built into the architectureof microprocessors. The Intel 80486 microprocessor, for example, contains an 8K memory cache, and the Pentium has a 16K cache. Such internal caches are often called Level 1 (L1) caches. Most modern PCs also come with external cache memory, called Level 2 (L2) caches. These caches sit between the CPU and the DRAM. Like L1 caches, L2 caches are composed of SRAM but they are much larger.--------------------------------------------------------------------------------------------------------------------------------ANSWERI would like to point out the disadvantage of the Cache...Just in case the Cache memory is full and data that is required to process or an application required to run doesn't fit into the Principle of Locality (that is not in the near by location) then it is obvious that the time required for the main memory to access the information would increase...coz first the the data need to be relocated into the cache and then process over here if the cache memory was missing it would be quicker...furthermore being such an extensive memories they are very small in Memory Size which requires location and relocation of the data or applications.It allows commonly accessed data to be stored in full and referenced faster than recompiling the data each time.
