I was reading an online exam cram book, and got pissed at how inadequate some of their crap was… and decided to waste 15 min firing off this e-mail. All said and done, it made me feel better so I guess it wasn’t a total waste of time….<\/p>\n
After all, they ASKED for my feedback!<\/p>\n
Happy whatever’s day,<\/p>\n
—–Original Message—–
\nFrom: Byarlay, Wayne A.
\nSent: Friday, September 01, 2006 4:41 PM
\nTo: feedback@quepublishing.com
\nSubject: Feedback on “Citrix CCA MetaFrame Presentation Server 3.0 and 4.0 Exam Cram”<\/p>\n
In this book, in Practice Exam 1, Question 40 states:<\/p>\n
“40. On which layer of the OSI model would you place the ICA protocol?<\/p>\n
1.Session layer
\n2. Transport layer
\n3. Application layer
\n4. Presentation layer
\n5.\u00c2\u00a0 Network layer.”<\/p>\n
Then, in the Answer Key:<\/p>\n
“Answer D is correct. The ICA protocol is a Presentation layer protocol on the OSI model. Answers A, B, C, and E are incorrect because they are not the correct layer where the ICA protocol should be placed.”<\/p>\n
This explanation is inadequate. It is inadequate because it is not adequate.<\/p>\n
I am annoyed by this. I am annoyed by this because I am not NOT annoyed by this.<\/p>\n
A better explanation would take a few moments of research and due diligence. This explanation sounds like a freshman English 101 attempt to fill white space.<\/p>\n
Let me offer you a better explanation that I will spend exactly 10 minutes to research:<\/p>\n
I am not sure why Session is not the correct answer. To me, it could possibly fall under this category. Perhaps because presentation handles data compression, and ICA is a compressed protocol? But what serves as the Session layer, if ICA is the Presentation? Hmmmm. If this were a classroom, I would probably raise my hand, to the chagrin of my fellow trainees.<\/p>\n
Transport is not correct because ICA travels over the TCP protocol, which is a Transport Protocol. It would have to somehow ride between the TCP packets, being handled by routers, via some other addressing method than the IP address. ICA does not do this.<\/p>\n
Network Layer – No, this is too low. If ICA were a network layer protocol, it would be working alongside the IP of TCP\/IP, being pushed around a method other than a packet-switched network, such as Novell’s lousy IPX, which thankfully died a thousand deaths (But probably still lurks in some deep, dark corners of the networking world).<\/p>\n
There, in 10 minutes, I have produced an explanation which I feel is much more adequate and professional than the answer provided by Todd Mathers, Elias Khnaser.<\/p>\n","protected":false},"excerpt":{"rendered":"
I was reading an online exam cram book, and got pissed at how inadequate some of their crap was… and decided to waste 15 min firing off this e-mail. All said and done, it made me feel better so I guess it wasn’t a total waste of time…. After all, they ASKED for my feedback!… Continue reading “Why is it wrong?” “Because it is not right.”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7","post","type-post","status-publish","format-standard","hentry","category-uncategorized","entry"],"_links":{"self":[{"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7"}],"version-history":[{"count":0,"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tungsai.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}