Problem 1: a).sol SMTP is a protocol used to transfer emails, so this is command to specify the MAIL SENDER mail from: usmanbinasif@yahoo.com ( sender ) rcpt to: usmanbinasif@hotmail.com ( recipient ) so by using such commands email servers communicate with each other. In mail message MIME is shown which shows u the email contents, there is no relation amoung MAIL FROM and FROM b). SMTP uses a line containing only a period to mark the end of a message body. HTTP uses “Content-Length header field” to indicate the length of a message body. No, HTTP cannot use the method used by SMTP, because HTTP message could be binary data, whereas in SMTP, the message body must be in 7 bit ASCII format. c). The name server (NS) resource record …show more content…
The complete time for the message from source host to destination host = 4 sec× 3 hops = 12 sec. b) Time for first packet from source host to first packet switch = 1*10^4/2*10^6 = 5 m sec. Time for the second packet is received at the first switch = time at which first packet is received at the second switch = 2 × 5m sec = 10 m sec c) Time of the packet received at the destination host = 5 m sec× 3 hops = 15 m sec. After this, every 5msec one packet will be received; thus time at which last (800 th) packet is received = 15 m sec + 799 * 5m sec = 4.01 sec. d) i. Without message division, if bit mistakes are not endured, if there is a solitary piece blunder, the entire message must be re transmitted (instead of a solitary bundle). ii. Without message division, enormous bundles (containing HD recordings, for instance) are sent into the system. Switches need to suit these gigantic packets. Littler packets need to line behind huge bundles and endure out of line delays. e) i. Packets must be placed in grouping at the goal. ii. Message division brings about numerous littler bundles. Since header measure is typically the same for all packets paying little mind to their size, with message division the aggregate sum of header bytes is more. Problem 4 R: ∆ = (850,000 bits)/(15,000,000 bits/sec) = .0567 sec β∆=(16 requests/sec)(.0567 sec/request) = 0.907. Average access delay is (.0567 sec)/(1 - .907) ≈ .6 seconds. The total average response
1. A major advantage to two sided messages is the inoculation effect it has for the receivers to competitive messages
Now we can apply Little’s Law to calculate the throughput time which is equal to the manufacturing lead time in this case.
It’s extremely important that you clearly check the person you are planning on sending an email to, just in case they happen to not be the person who you thought it was.
Transmission Time= [(100 bit/t seconds) = (10,000,000 bits / 1 second)] Therefore, t = 10 ms
T= 40ms, I figured this by guessing cause I could not find any information on how to calculate. So I used the equation for t and plugged in different numbers until I got the 10ms that was already given in the table. t= T x 0/360= 40ms x 90/360= 0.01 x 10^-3= 10ms
9. 1. The email subject line is one of the most important parts of an email message because it helps recipients decide which messages to read and when to read them. To capture your audience's attention, make your subject lines informative and compelling. Go beyond simply describing or classifying your message; for example, "July sales results" accurately describes the content of the message, but "July sales results: good news and bad news" is more intriguing.
The word ‘Mail’ did refer to the written communication that passes through the messenger service or the post office. However, ‘mail’ now widely refers to ‘email’, where ‘Post’ refers to the written word on paper put in envelopes. Mail can arrive at the company office in different ways. The bulk of the mail will be delivered by the Post Office, usually in the morning to midday. Nonetheless, mail can also be delivered by hand, fax and of course by e-mail.
a) For the file to be sent continuously as one big message, we need to calculate transmission delay plus propagation delay.
The SMTP protocol stands for Simple Mail Transfer Protocol. SMTP is used when an email is
the time to transmit a control frame (such as an RTS frame, a CTS frame, or an ACK frame) is
Clear subject headings make everyone's lives easier, helping with prioritizing, filing, cataloging, cross-referencing, and retrieval. Samantha Miller states that you should keep your subjects short because “A complete sentence will betray you as an email beginner, and many e-mail programs cut off a subject after forty characters…A few words, or one well-selected one are best.” (Miller 3). Keep your message focused. If a new topic is introduced it should be under a separate message with a new subject heading. Try to keep in mind that writing styles may cause some messages to come across as sounding abrupt or even antagonistic when that is not the intention of the sender. Take time to read and fully comprehend what has been written before you reply, especially if the message provokes a strong emotional response. One important thing when you think that you might provoke a strong response is to avoid flaming. Flaming is an inflammatory remark or message. As a result as David Harris
Using Little’s Formula we have done Lead Time Analysis (Exhibit 4) which shows that on an average Lead Time is approximately 2 days (2.10). As we have seen, throughput on the other hand is approximately 6 days which is much higher than the average Lead Time. This suggests that the longer throughput time is because of allocation problems described
In a ______ connection, two and only two devices are connected by a dedicated link.
Transmission Path Level: This extends between network elements that assemble and disassemble the payload of a transmission system. For end-to-end communication, the payload is end-user information. For user-to-network communication, the payload may be call-control signaling information (call setup and call termination). Cell delineation and header error-control functions are required at the end points of each transmission path.
If the communication was not properly channeled, it creates barriers or noise interference which hinders the communication process making the message unclear.