Temple MIS | Liang Yao | Activity

Temple MIS | Liang Yao | Activity https://community.mis.temple.edu/members/liang-yao/activity/ Activity feed for Liang Yao. Thu, 23 Apr 2026 02:33:56 -0400 https://buddypress.org/?v= en-US 30 hourly 2 1b8b2d896eaf2cce4142038ee4ab818f Liang Yao's profile was updated https://community.mis.temple.edu/activity/p/219243/ Thu, 13 Aug 2020 15:02:53 -0400 0 42420187201bfb71fcd0266368cff5f5 Liang Yao changed their profile picture https://community.mis.temple.edu/activity/p/219220/ Sun, 02 Aug 2020 00:59:39 -0400 0 98446b594ec95163dc65c07d4b6a6705 Liang Yao changed their profile picture https://community.mis.temple.edu/activity/p/188744/ Wed, 02 May 2018 17:43:42 -0400 0 67163edb2be89502b3d13ff0eec1dfe1 Liang Yao wrote a new post on the site IT Audit Process Fall 2020 http://community.mis.temple.edu/mis5201sec702fall2020/?p=3425 Fri, 12 Jan 2018 20:39:01 -0500 0 67163edb2be89502b3d13ff0eec1dfe1 Liang Yao wrote a new post on the site IT Audit Process http://community.mis.temple.edu/mis5201sec001fall2019/?p=3425 Fri, 12 Jan 2018 20:39:01 -0500 0 0bdb171e7db72a6ea6df35a81c2b6afd Liang Yao wrote a new post on the site MIS 5201-IT Audit Process http://community.mis.temple.edu/mis5201sec001sec701sp2018/?p=3425 Fri, 12 Jan 2018 20:39:01 -0500 Test

]]> 279abdad8d38dae5e59d5aae122ac1cb Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1056 Tue, 04 Oct 2016 18:35:50 -0400 Like your approch to answer the question one step further…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 68a688a5d98077ff754fb4974a5f2fdc Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1055 Tue, 04 Oct 2016 18:32:50 -0400 Those are good questions to ask if your client is using a VPN service provider…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 56831f1fdf3ff400d731072df178551e Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1054 Tue, 04 Oct 2016 18:20:30 -0400 Jumping the GFW… you need to find a VPN service provider, right?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> cfd09835e35ada20be7febc798e002a8 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1041 Tue, 04 Oct 2016 00:09:21 -0400 Let’s discuss a few key controls can mitigate risks associated with VPN during the class…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 2b72914eab87fdab05583c3f7e2a9f68 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1040 Tue, 04 Oct 2016 00:06:36 -0400 Leveraging the public network is one of the important reasons why VPN reduces the cost comparing leased lines…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 965b9f6ee30054500d3cd072edac6c94 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1039 Tue, 04 Oct 2016 00:03:55 -0400 Sean, well explained. Challenge question: can you explain to the class on Wednesday, how OSI layers map to TCP/IP?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> e525435d6a3f2703907618402e70a589 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1036 Mon, 03 Oct 2016 23:44:32 -0400 The terminology is called “tunneling”…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> fa7e51e67b7e0ec3dc52792f0d052bc8 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1035 Mon, 03 Oct 2016 23:42:32 -0400 VPN helps the firm reduce the cost, correct. But how? Explain Briefly.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 796b541be589225d4479e9556ea17621 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1034 Mon, 03 Oct 2016 23:38:23 -0400 Those information are stored in the “routing table” within the router…the table provides the intelligence to the router to direct the traffic.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 5ff445f239ead1d1f34f6bd2eb85ad71 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1033 Mon, 03 Oct 2016 23:34:04 -0400 An interesting article about how to select VPN vendor:

http://www.howtogeek.com/221929/how-to-choose-the-best-vpn-service-for-your-needs/

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 89aa23662ba53a51148bbd0102452638 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1032 Mon, 03 Oct 2016 23:31:33 -0400 An intersting article about how to select a VPN service provider:

http://www.howtogeek.com/221929/how-to-choose-the-best-vpn-service-for-your-needs/

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> ed26c4e0b118c16fa4287274a1078fa8 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1028 Mon, 03 Oct 2016 23:08:12 -0400 Once a user established VPN connection to his/her company’s next work, the node he/she logged in becomes part of the company’s network….what controls a company should deploy to mitigate the risk caused by the activities you mentioned above, such as downloading movies and music illegally?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> f053e3bacb77f4510d54e32e2b971775 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1027 Mon, 03 Oct 2016 23:03:28 -0400 Ian – Why do most of the firms choice VPN over some of the options you mentioned above?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 9bebf8b90426cdc0c9db502d98ea4be2 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/29/week-6-questions/#comment-1026 Mon, 03 Oct 2016 23:01:05 -0400 Said – What controls should be implemented to mitigate the risk you referred to here?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What is OSI model? What’s the main function of each OSI layer? What are the advantages of VPN? ]]> 72386ff3597d0d57f86b658f1a75d48e Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-892 Wed, 28 Sep 2016 02:20:05 -0400 There are different data leakage prevention related controls a company can implement. More to discussion in information security session.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> b2e17d7bc79c26f5c6a339160ae28766 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-891 Wed, 28 Sep 2016 02:10:29 -0400 That’t exactly the reason why we need OS….

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> 1357ae64ffae78669458b065224b74c5 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-821 Mon, 26 Sep 2016 01:33:13 -0400 And don’t forget the resilience piece…very important. In addition, how about physical access to the computers, whether servers or desktops?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> f4a8df565a62ac5a37be475a5744b839 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-819 Mon, 26 Sep 2016 00:57:47 -0400 can patch remediate the risk caused by “zero day” attack?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> d7eb0e330ca95ad232e1085441621ae4 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-818 Mon, 26 Sep 2016 00:48:56 -0400 Sean – how about this recent news from CBS:

“US military uses 8-inch floppy disks to coordinate nuclear force operations”

Your thoughts?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> 0a4ed1dccbda393207409169f931f7f4 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-816 Mon, 26 Sep 2016 00:44:52 -0400 That’s why it’s imperative to develop a disaster recovery plan. We will cover DR and how to audit DR plan soon.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> 8ca03b2beb3eb12ed707c34fd12d6f79 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-815 Mon, 26 Sep 2016 00:40:59 -0400 Sean, indeed, one of the very important tasks for IT auditors is to verify technology policies are adherences. In this case, what do you think a firm should do in addition to develop a malware related IT policy? Let’s discuss during the class. Thx.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> 41de947f65dee70cfc406a1d38ef7935 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-814 Mon, 26 Sep 2016 00:36:59 -0400 What cause the “blue scree of death”?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> d4cbb821921429555b4eb1b9fa11fc61 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-812 Mon, 26 Sep 2016 00:27:09 -0400 A lot good points, just one correction, OS is a software, facilitate the communication between applications and computer hardware components. Itself doesn’t include hardware part.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> f7144717e2e3a547ddf3ec101bc5d2a5 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/22/week-4-5-questions/#comment-811 Mon, 26 Sep 2016 00:23:30 -0400 This follow up question is for ALL of you: In your opinion, which OS is easier to protect, a Mainframe computer or Distributed computer environment (e.g windows and Unix/Linux) and why?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 Why is so important to protect operating systems? List common ontrol issues associated with operating systems and remediation strategy/plan. ]]> bcdf63ccb810daa5e234f764213943df Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-749 Wed, 21 Sep 2016 00:46:17 -0400 Correct, one area IT auditor should always review is the IT team’s education, experience and training program.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> f1b836e596ebc80a45c85d634673a2a7 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-748 Wed, 21 Sep 2016 00:42:19 -0400 Prepare to discuss controls should be in place to mitigate those risks…

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> a211025da5e9a57d883ed15a39b3499f Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-747 Wed, 21 Sep 2016 00:40:37 -0400 What’s another important reason to maintaining currency of a database system?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 318a13e65c52b922f36a17a4c2b8e909 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-726 Tue, 20 Sep 2016 00:10:16 -0400 Deepali – Thanks for bring in the real life example. However, the sample you brought up is rather from human aspect not a data corruption issue. We can discuss during the class.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 867a8cd36302731422bf7ca588235475 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-725 Tue, 20 Sep 2016 00:07:23 -0400 Good point. We will discuss data recovery strategy in a few weeks.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 299ad682617521eab75c9a215b42603e Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-724 Tue, 20 Sep 2016 00:04:26 -0400 Actually RDMS is a type of DBMS. It’s based on relationship among tables.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> baba63a7ac1a36ca111b7cea8fadfc97 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-723 Mon, 19 Sep 2016 23:49:21 -0400 Data duplication can be reduced via a process called Normalization. We will discuss during the class.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> bd7be1f554f2d5cb59f8a8c1a469fc1b Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-722 Mon, 19 Sep 2016 23:47:05 -0400 You brought up several important subjects here: authentication vs. authorization; protecting data at rest, data in use and data in transition. Those are things concern IT auditors. We will discuss on Wednesday.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 40547b6bf5519fd118f3e52e7c28e96c Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-721 Mon, 19 Sep 2016 23:41:35 -0400 Database Administrator (DBA) and database developer are two different roles and we will discuss during the class.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> e25064239d0499cce482e7d38978bc02 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-719 Mon, 19 Sep 2016 23:39:33 -0400 RDMS has built in mechanism to handle concurrent access; it also has the security feature to assign different types of access; usually a database consists a lot of objects, including a lot of tables, access can be granted to those objects.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> a79c8b5eb09ba0cd618ff7ccba4683bc Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-718 Mon, 19 Sep 2016 23:34:36 -0400 One reason database can provide fast query results is via indexing. How does index work? Can you find out and explain during the class?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> f274e8ac859f1e6d0a5499c7e223f9f6 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-715 Mon, 19 Sep 2016 23:30:30 -0400 From IT audit aspects, can you list a few key controls auditors must to take into consideration while auditing a relational database?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> ffdc5ff1b8ad73710d20df46cbfcfbc5 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-714 Mon, 19 Sep 2016 23:27:09 -0400 Any security implications or improvements?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 278880c1bd833997118c39cc0c8ed329 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-712 Mon, 19 Sep 2016 23:22:25 -0400 Yu Ming – Can you provide an example of how normalization works during the class? Let me know. Thx

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> da183a12b38907254b7c319931428e4c Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-617 Sun, 18 Sep 2016 13:58:09 -0400 Correct. DBMS should be placed behind the firewall. However, they are not immune from the attacks. We will discuss the concept of “layers of defense” during this course.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 2f3749879f47416e3a403a4098d46594 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-616 Sun, 18 Sep 2016 13:53:50 -0400 Paul – Think about what controls can be implemented to mitigate those risks…let’s discuss during the class.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 7851ddff2d71d2ab82a1e480af0e03d9 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-615 Sun, 18 Sep 2016 13:52:46 -0400 Can you think about a scenario that RDMS is not idea and bring to the class?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> a4f0690566e2867277da032d0d401d57 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-614 Sun, 18 Sep 2016 13:50:42 -0400 What types of relationship among tables? What’s the need to establish relationship among tables?

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 13dcdbf8a985fd04606b128be3a24d26 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-613 Sun, 18 Sep 2016 13:48:21 -0400 Sorry, miss-spelled your name, Priya.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]> 4ef8692437b788ac062a6fd0f2f5a045 Liang Yao posted a new activity comment http://community.mis.temple.edu/itacs5205fall16/2016/09/14/week-3-questions/#comment-612 Sun, 18 Sep 2016 13:47:30 -0400 Pyria, challenge question: prepare to discuss types of database constraints during the class.

In reply to - Heather D Makwinski wrote a new post on the site ITACS 5205 What are key characters of relational database management systems? Key benefits of relational databases vs traditional file system? List risks […] ]]>