WGU C724 - Unit 5

What is the required mediums for communications Correct answer- fiber optics, ethernet, radio frequency What is a universal telecommunication network protocol that most operating systems can recognize? Correct answer- TCP/IP A router connects data links from a single network and transmits data packets between Correct answer- What is a hypervisor? Correct answer- An expensive application used by large businesses to improve computer network performance without having to physically change the network. It is not necessary for small businesses What are 2 fundamental protocols that can describe modern telecom networks? Correct answer- packet transmission and TCP/IP protocol Packet switching refers to a computer networks ability to do what? Correct answer- transmit discrete, parsed data in small packets Why is it imperative that modern businesses have a social media marketing strategy? Correct answer- to capture this new community of users and to address issues of social care What configuration does the server control the traffic going back and forth the network, thereby maximizing the traffic on the network. Correct answer- client/server configuration Electronic communications has predominantly become the primary form of communications in first world countries. What protocol is used to mange and monitor the massive amount of emails that we receive every day? Correct answer- SMTP (simple mail transfer protocol) the popular mail protocols include IMAP and POP3 The IP version 6 (IPv6) addressing scheme was developed in 2006 for what purpose? Correct answer- To increase the number of unique IP addresses What is a secure tunnel through the internet using a public infrastructure? Correct answer- VPN (virtual private network) A reliable intranet connection provides organizations and their suppliers and vendors with __________________________________ Correct answer- a secure platform for internal use What led to the innovation of the telephone? Correct answer- telegraph technology Why has cloud computing become more popular? Correct answer- because users have more flexibility than they do with VPN What is the typical broadband data speed of a 4G network? Correct answer- 100,000 kbps What is a denial of service attack? Correct answer- A hacker attempt to tie up network host resources making them unavailable What is the primary difference between a 1G cellular network and the current 4G network? Correct answer- 1G enabled mobile voice telecommunication while 4G offers voice, data and video What is a radio frequency survey? Correct answer- a signal strength detection process to identify the best wireless access point locations. Why is WPA critical to wireless networks? Correct answer- it is a tunneling encryption protocol that secures wireless data transmissions What does WSN stand for? Correct answer- Wireless Sensor Networks What does wireless communication use to send and receive signals? Correct answer- radio waves over the radio spectrum When streaming data or voice, which type of switched network is used? Correct answer- circuit switch What is another name for a network host? Correct answer- data terminal equipment What are peer-to-peer network topologies? Correct answer- connect each user in a network directly How many layers are in the standard OSI model? Correct answer- 7- physical, data, network, transport, session, presentation, application What is a characteristic of a legacy or old analog network? Correct answer- they carried continuous electronic waveforms What is the IoT (internet of things) Correct answer- all devices connected to the internet with sensors to be automatically re-filled or serviced when needed For an individual or a business, data can be uploaded to the internet in many forms. What data should not be communicated on the internet? Correct answer- banking transactions must be encrypted to be safely communicated over the internet A web browser is required to surf the internet. What other protocol is needed by a client computer to request a web site via HTTP or HTTPs? Correct answer- URL (uniform resource locator) Using the IP address of 142.212.25.1, which two bytes are managed and assigned by the computer administrator to each individual host on the network? Correct answer- 25 and 1. The last two bytes are assigned to and managed by the client. The first two bytes are assigned to and managed by the ISP What portable device combines the functionality of the phone technology with the computing of a desktop or laptop? Correct answer- smartphone What is a benefit of an extranet? Correct answer- interact with suppliers, often via an SCM What application provided by the internet allows an online retailer to conduct business? Correct answer- web enabled storefront The internet has contributed to a complex network system. Businesses continue to grow and develop a need for more computer-enabled productivity which results in what? Correct answer- more complexity due to the need for more systems and better improvements in their processing capabilities. The term "generations" is used to describe changes in which type of technology? Correct answer- cellular wireless standards What information can be gained by sniffing a wireless network? Correct answer- passwords and Login ID's What does PSDN stand for? Correct answer- packet switched data networks Wireless LAN networks are _____________ Correct answer- more scalable than wired networks. What is an advantage of a wireless LAN? Correct answer- it allows visitors to access the internet What technology is used to track inventory and can be read hundreds at a time, even if the tag is covered? Correct answer- RFID What is not practical for telecommunications, especially with the advent of wireless? Correct answer- copper building wire What is QoS? Correct answer- used to measure performance of data communications What is the purpose of a network sniffer? Correct answer- monitor network traffic What is the definition of a core router? Correct answer- connect large business to backbone of internet What are the 7 layers of the OSI model? Correct answer- application, presentation, session, transport, network, data link, physical What is the definition of a digital signal? Correct answer- a discrete, non continuous electrical waveform What will soon surpass desktop computers accessing the internet? Correct answer- smart phones While enrolled in a traditional course at a university, you and your instructor can communicate synchronously, face-to-face, in the classroom. However, you can also communicate with your instructor synchronously outside the classroom using which internet application? Correct answer- instant message Several independent parties or governing bodies work together to define the rules that help to manage effective network communications. What are the 3 governing bodies that recommend and decide communications standards? Correct answer- IOS (International organization for standardization), ARPANET (creator of the original internet in 1967), IETF (internet engineering task force) Using the IP address of 142.212.25.1, which two bytes are managed and assigned by the Internet Service Provider? Correct answer- 142 and 212 Among all the connections- internet, intranet, and extranet- which is the most widely used channel for business? Correct answer- internet What application provided by the internet allows a business to transfer documents automatically without human intervention? Correct answer- (EDI) Electronic Data Interchange May businesses require their employees use VPN to gain remote access to the corporate network. What is an advantage of VPN? Correct answer- secured access Bluetooth is a wireless protocol that connects nearby devices with peripherals at what spectrum band? Correct answer- 2.4Ghz What is the act of bringing a network host down? Correct answer- denial of service What is the ability of a network to grow user and services without forklift upgrades? Correct answer- scalability RFID technology helps companies to be more ______________ with inventory management because they eliminate the need for physical handling of materials during cycle counting. Correct answer- productive