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| At the __________ layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller packets and opening a connection to a server for transferring the packets |
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| In the OSI model, the session, presentation and application layers correspond to the ________ layer of the Internet model |
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B.
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Using Internet technologies in LAN environment.
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Definition
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D.
Using Internet technologies in LAN environment.
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| Every single personal computer built by IBM in the United States during the third quarter of 1997 was purchased by ________. |
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| A server farm is a _______ or group of computers linked together so that they act as one. |
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Definition
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| ___ -clients are much easier to manage. |
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| The most widely used network application architecture is Client-server that frequently uses a third software component, called ________, that allows proper communication, translation and message transfer between software components from different vendors. Examples of related standards are DCE, COBRA and ODBC. |
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Definition
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Term
| Which of the following statements are true about a thin-client or terminal: |
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Definition
Typically does not have storage device, like hard disk.
It enables cloud-based architecture.
Typically does not have storage device, like hard disk.
It enables cloud-based architecture. |
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| With the “thin client” architecture, when an application changes, only the _________ with the application logic needs to be updated. |
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Definition
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| Select which of these Cloud Computing Model(s) or Architecture(s) does outsource the OS |
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Definition
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| One underlying problem with a _____-based application architecture is that, the server can get overloaded since it must process all messages. |
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| A data circuit is using modulation with 8 kHz symbol rate (frequency) and 8 bits per symbol. The resulting circuit data rate is ______ kbps |
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Definition
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| If the highest frequency of a circuit is 10 KHz and the lowest frequency is 800 Hz, the available bandwidth for this circuit is _____ Hz |
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Definition
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| Inverse multiplexing means: |
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Definition
| combining several low speed circuits to enable them to be transmitted across one high speed circuit |
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Term
| Select all frequencies, that humans can hear |
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Definition
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| When converting analog signal to digital using pulse amplitude modulation (or sampling) and using 128 amplitude levels, how many bits per sample are needed? |
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Definition
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| When sending 5 bits per symbol using frequency modulation, the number of different frequencies needed would be _______. |
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Definition
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| The longer the cable length |
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Definition
| the lower the usable bandwidth |
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| using _______ transmission mode would take one clock cycle |
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Definition
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| using _______ transmission mode would take 8 clock cycles |
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Definition
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| What is the ASCII decimal equivalent of the character: @ |
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Definition
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| Select the 2 modulations and number of bits representing each symbol in QAM-256 |
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| The loss of power a signal suffers as it travels from the transmitting computer to a receiving computer is called |
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| Even though parity checking has quite high success rate of detecting errors on circuit thanks to the nature of error occurrence (bursts), the theoretical probability of detecting an error using parity checking is only about ___ % |
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Definition
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| The probability of CRC detecting an error is ___ % for all errors of the same length as the CRC or less |
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Definition
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| The simplest, most widely used method for error correction is |
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Definition
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| When we amplify the signal on an analog circuit, we also amplify any noise that is present on the circuit |
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Definition
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| what is an effective way to prevent impulse noise, cross talk, and intermodulation noise. |
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Definition
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| when a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. |
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Definition
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| The more bits are added to the each PDU as the error detection information, the _____ the protocol efficiency |
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Definition
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| If a computer transmits a message containing “ABC” and the destination computer receives “abc” as the message, the message is corrupted. |
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Definition
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| Typical _____________ protocol is sending only 1 character (up to 8 bits) per frame. |
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Definition
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| In data transmission, data errors are typically _______________ in time. |
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Definition
| forming concentrated bursts |
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| __________ access method is commonly used in Ethernet local area networks. |
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Definition
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| The protocol to resolve the network layer address to data link layer address by using a broadcast on a local subnet is called _____ |
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Definition
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| An advantage of centralized routing is |
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Definition
| routing decisions are simple |
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| What is the name of the protocol (type the 3 letter acronym), that provides the equivalent of directory assistance for application layer addresses matched to network layer address |
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Definition
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| IPv4 uses ________ bytes per Internet address. |
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Definition
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| One drawback to dynamic routing is |
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Definition
| The transmission of status information “wastes” network capacity that could be used to send user messages |
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