[RE] [긴급질문] 시험문제 ㅡ.ㅡ;; 풀어주세요~
Reg. Date: August 27, 2004 By 김준현
여긴 숙제해 주는 곳이 아닙니다.
풀려고 애써보시고 이해안되는 부분에 대해 질문해 주세요.
>3) Which type of situation is Ethernet NOT suitable in?
> a. Hosts send data sporadically in bursts
> b. Most of the times the hosts are idle but sometimes they all want to transmit data at the same time
> c. Hosts do not send data most of the time but they send data sometimes.
>
>4) A 4kHz Analog signal is to be transmitted such that it obeys Nyquist's Theorem.
> The quantization is done such that after quantization 1 byte represents each sample.
> what will be the minimum data rate required to carry such a signal?
> a. 6Kbps
> b. 64Kbps
> c. 128kbs
> d. 32Kbps
>
>
>10) In an AWGN channel with bandwidth of 3000 Hz and an Signal-to-noise ratio of 63. What is the theoretical maximum data rate possible?
> a. 18Kbps
> b. 128Kbps
> c. 56Kbps
>13) How many full duplex should be there in a full-connected mesh of 6 nodes?
> a. 15
> b. 30
> c. 36
> d. 6
>
>16) In HDLC whenever there are 5 ones occurring in the message a zero is placed after it. This technique is called :
> a. Byte stuffing
> b. Bit stuffing
>
>17) In a token-ring (delayed) mechanism when the data frame is on the network the frame is with :
> a. sender
> b. receiver
> c. on the network
>