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In serial communication disconnection and continuing how start bit and stop bit recorganized by the receiving device for correct framing?
Answer The start bit in serial communication is opposite polarity puls than the stop bit depending on the system the start bit for instance is a positive puls (hi…gh) and the stop bit will be a negative puls (low)
Frames of 1000 bits are sent over a 1-Mbps channel using a geostationary satellite whose propagation time from the earth is 270 msec Acknowledgements are always piggybacked onto data frames The head?
Let t=0 denote the start of transmission.At t=1 msec,the first frame has been fully transmitted.At t=271 msec,the first frame has fully arrived.At t=272 msec,the frame … acknowledging the first one has been fully sent.At t=542 msec,the acknowledgement-bearing frame has fully arrived.Thus, the cycle is 542 msec.A total of k frames are sent in 542 msec,for an efficiency of k/542.Hence (a)k=1,efficiency=1/542=0.18% (b)k=7,efficiency=7/542=1.29% (c)k=4,efficiency=4/542=0.74%
Channel has data rate of 4 Kbps and propagation delay of 20mswhat range of frame size do stop and wait give an efficiency of atleast 50?
You need to use two formulas - firstly a= propagation delay/transmission time. We'll denote this by tprop and ttrans. tprop is given in the question, it is 20 x 10-3 ttrans… is Distance/Data Rate so ttrans = L / 4 x 103 ttrans = 80/L (becasue the powers of ten cancel each other out so you just multiply 20 x 4. we use powers of ten because we need the same format as the propogation delay a = 80/L 2. Use the formula 1/1+2a >= .5 = 1/1+ 160/L>=.5 First 1>= .5(1+160/L) second 1>= .5 + 80/L third 80/L >= 1 x .5 fourth .5 >= 80/L L >= 80/.5 L >= 160
Framing bit does not contain any dta however this bit is used for syncronization between two peers
How many bits are in logical addresss. If a logical address space of eight pages of 1024 words each mapped onto a physical memory of 32 frames?
a. Logical address will have 3 bits to specify the page number (for 8 pages) . 10 bits to specify the offset into each page (210 =1024 words) = 13 bits. … b. For (25) 11 32 frames of 1024 words each (Page size = Frame size) We have 5 + 10 = 15 bits.
Most modern operating systems are either 32 bit or 64 bit but it mostly has to do with memory coding. 32bit can utilize a maximum or 4gb or RAM due to the amount of nu…mbers it uses to identify a location on the RAM (32 numbers). 64 bit can use far more memory (over 128gb) while 16 bit can use far less (not sure of exact numbers) Anything you buy today should be at least 32bit if not 64 bit
32 bits. which is 4 bytes (8 bits in each byte).
Consider a logical address space of eight pages of 1024words each mapped onto a physical memory of 32 frames how many bits are there in the logical address?
As was given for a 4 Page, 1024 words & 64 frames (shown below) 4 pages -> 2^2 bits 1024 bytes -> 2^10 bits 64 frames -> 2^6 bits Therefore: Logical memory = 2…+10=12 bits Physical memory = 10 +6 =16 bits The answer for this problem is 13. 8 pages -> 2^3 bits 1024 bytes -> 2^10 bits 32 frames -> 2^5 bits Therefore: Logical memory = 3+10=13 bits (Page + Word) Physical memory = 10 + 5 =15 bits (Word + Frame)
1 frame= 1000 bytes where, 1 byte= 8 bits therefore, 1 frame=8000 bits
Telegrams are sent in data packets. Bits packet frame segment data mean data packet and they belongs to Data link layer. Bye.
Frames of 1000 bits are sent over a 1-Mbps channel using a geostationary satellite whose propagation time from the earth is 270 msec?
Let t=0 denote the start of transmission. At t=1 msec, the first frame has been fully transmitted. At t=271 msec, the first frame has fully arrived. At t=272 msec, t…he frame acknowledging the first one has been fully sent. At t=542 msec, the acknowledementbearing frame has fully arrived. Thus, the cycle is 542 msec. A total of k frames are sent in 542 msec, for an efficiency of k/542. Hence a) k=1, efficiency=1/542=0,18% b) k=7, efficiency=7/542=1,29% c) k=4, efficiency=4/542=0,74%
Refers to native data size & processing speed, each of those potentially twice as fast provided you have Ram etc. to support.
Well, technically it doesn't have a rating. But, to me it should be rated teen for some horror images.
Nope - the two systems are not compatible.
Theoretically you can use any slot, but practically use ports starting from 1st.
If you are using TC.EXE (or TCC.EXE) then it is 16-bit.
If a tv screen has 525 scan line and and aspect ratio of 3 is to 4 and if each pixel contains 12bits worth of intensity information how many bits per second required to 30 frames each second?
They will require 24 bits per second to 30 frames each second.