MCIA Practice Exam

Draw a sequence diagram for air ticket reservation which have 6 different classifiers such as User, Mobile Device, WAP Gateway, WebServer, Apache and Database Server. User sends the message Requestflightinfo ( ) to Mobile device and get back reply as Displayflightinfo ( ). Mobile device sends the message of connectthroughWAP( ) to WAP Gateway and receives the message as Sendthroughchannel( ).WAP Gateway sends message Authenticate( ) to Webserver and gets reply as Responseinfo( ).  Apache will get the message to ActivateApache( ) from webserver and receives                WMLcontent ( ).Apache will send ExecuteQuery( ) message to Database Server and receives Retrieveinfo( ).

Does a two-tier design have any major drawbacks?Using a multitier client-server design, how can we fix this problem?

Consider the following simplified description of deployment with hardware and software load balancing and clusters. Construct a deployment diagram for the system. "A network load balancer is an appliance device that is used to split network load across multiple servers. A jetNEXUS ALB-X hardware load balancer combines the functions of OSI Layer 7 (Application Layer) load balancing, HTTP compression, SSL offload and content caching in one solution. It has 2 active hardware load balancers connected to 2 to 4 Sun Fire Servers. Each server has 3 instances of IBM WebSphere 7 J2EE application servers installed, so we have both vertical and horizontal clustering. When database connection is requested by application, Oracle run-time connection load balancing selects connection that belongs to the best instance from the connection cache provided by Oracle RAC (Real Application Clusters) database."

Exercise 1: Understanding Ping and Traceroute Output Topology Diagram In this assessment, you must test end-to-end connectivity using ping and traceroute. At the end of this activity, you can distinguish the difference between successful and unsuccessful ping and traceroute attempts. Note: Before beginning this activity, ensure the network is converged. To converge the network quickly, switch between Simulation mode and Realtime mode until all the link lights turn green. Step 1: Test connectivity using ping from a host computer and a router. Step 2: Test connectivity using a traceroute from a host computer and a router. Step 3: Practice the ping and traceroute commands. upload all screenshots of the exercise.

Sketch a network design for a Shoes company based on a scenario in Figure Q6. The Shoes Company has a bus local area network for the Sales department that consists of six personal computers, a modem used by outside field representatives shared laser printer, sharedmarketing program and data files and a server. Meanwhile, the LAN for theR&D department also has a bus to call in for price data, a network that consists of three personal computers, shared a printer, protocol and have client/server relationships. The sometimes sends its in-progress work to the Sales representatives for their evaluation. Similarly, the Sales department sends ideas from the field to the R&D department. The two departments communicate to another via a bridge. shared files and a server. Both LAN use the Ethernet R&D department new Figure Q6

Design a computer network to be implemented in a multilevel buildingenvironment separated geographically in three sites. The network devices, cabling and appropriate wiringwill be proposed to address the requirements of the users with considerations on scalability, reliability,availability and security. Proper configurations including network protocols in the OSI Layer will beconsidered. Layered design model will be followed for the LAN and WAN environment. Servers and hostPCs should meet the requirements. Critical devices will be housed in a Wiring Closet. Safety and existingstandards in designing networks will be considered throughout the design. Details of the designrequirements are outlined per area. (USE PACKET TRACER)

Recognize and explain the IoT's reference model (IoT). Complete the missing pieces by using the four connection tiers provided by the reference model.

1. consider how we might implement the described BlackJack system using a microservice approach. Using UML, design the necessary components and interfaces needed. As you finalize the design, create a table for each component (service) noting the following information: Path, HTTP method, Data Format, Data to be sent/received.

In typical client-server systems the server machine is much more pow- erful than the clients; that is, its processor is faster, it may have multiple processors, and it has more memory and disk capacity. Consider in- stead a scenario where client and server machines have exactly the same power. Would it make sense to build a client-server system in such a scenario? Why? Which scenario would be better suited to a data-server architecture?

What is the problem with a two-tier client–server model? How can a multitier client–server design address this issue?

Is there a major drawback to a two-tier design?Using a client-server design with many tiers, how do you propose resolving this problem?

In a two-tier architecture, what is the main problem? This difficulty may be solved by using a multitier client–server design.

Rails MVC: • Know about MVC architecture and what it aims to do. • What is a model? • What is a view? • What is a controller? • The [blank] subsystem is responsible for mapping incoming HTTP requests to [blank] [blank] and extracting any required or optional parameters. • Which type of variables are accessible to views? • What does a scaffold do? • Know where to find models, views, and controllers in the Rails directory structure. • Know which file to find the routes in a Rails project. • If you generate a scaffold for a resource Movie, what is the name of the controller and which file is it located at? • If you generate a scaffold for a resource Movie, what is the name of the model and which file is it located at? • If you generate a scaffold for a resource Movie, what is the name of the database table created? • Where does Rails keep the description of the structure of your database? • What is ActiveRecord and what power does it give Rails models?

It is sometimes easier to illustrate a concept by using an example. The process of network analysis may be carried out using one of four distinct connection approaches.

With the adoption of 5G technologies, how are interfaces being optimized to leverage enhanced connectivity for real-time interactions?

Is there a two-tier design that has a substantial drawback?How can a multitier client-server design address this problem?

Figure 4 shows the design of SMART aquaculture system comprises of 4 End-Node Unit (ENU), 1 Gateway Unit (GU) and 1 server. Based on the figure, propose and justify the best price and performance of loT protocol to communicate between ENU and GU, as well as GU to the server. Server SQL databased ARIMA forecasting model Website interface 3 M 11 KM 5 KM Gateway Unit (GU) 2 KM I KM End Node Unit (ENU) End Node End Node End Node Unit (ENU) Unit (ENU) Unit (ENU) 1 Tank 1 Tank 2 Tank 3 Tank 4 Figure 4: Design of SMART aquaculture System

A two-tier client–server design has a fatal fault. A multitier client–server design solves this problem?

Design a video distribution system for Trent University lectures. The two use cases would be first, where students could watch lectures (real time or stored video), the second would be where a live lecture is broadcast to other classrooms on campus(es), in real time. Key issues are where data is housed, if the system should have a content delivery system (and if so, where might it make sense to put some of those nodes), if the networking should be centralised or decentralised.

Distinguish between CSMA/CD and CSMA/CA. With flowchart elucidate the working scenario of Pure ALOHA and CSMA/CD.

A computer software development firm with a network of 300 computers is known as Computer Dynamics. The business is situated in three neighboring buildings on five levels. Each building in the office park has approximately 100 computers. The All LANs in each building are roughly the same, however one building's data is different. was located on the second level. The office is situated in no other places. The network architecture doesn't meet the requirements of the existing network. In it to be fully replaced, it must be removed completely. Create a rational campus design for this business. The seven network architecture components are on their radar. There because you may remove WAN access, there aren't any other campuses The following problems need to be addressed: (b) Design an enterprise campus that is logical. You will need to make certain assumptions in order to proceed. Describe the logic behind your network architecture.

Where exactly does the client-server design with two tiers fail to shine? In what ways may a client-server design that has several levels be of assistance in resolving this issue?

In the context of a computer network, explain how dependability and availability are related. the causes of the depreciation and obsolescence of a network HUB Is a deeper discussion of the issues required?

1. Students are allowed to transform their college campus network to hierarchical network design. The new network design should include all the three layers, core, distributions and access. At least five network services hosted on different servers should be included in the project. Any simulator can be used for the implementation.

How is the idea of Multipoint joining represented in a mesh topology, where each node is responsible for its own topology?

Computer Network Question: One important issue in networking is the performance of the network. The question is how can measure the performance of heterogeneous networks. For example, UIIT network which provides access to students at both wired and wireless networks. In this kind of scenario: You may need to define key performance parameters that can be used to evaluate the network performance.  If UIIT has a total bandwidth of 100Mbps and 40Mbps is reserved for admin and faculty. Due to COVID-19 pandemic total students coming daily altogether in morning and evening are 500. How much bandwidth a student can achieve if all students are using internet at the same time?