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The Network layer is responsible for routing through an internetwork and for networking addressing. This means that the Network layer is responsible for transporting traffic between devices that are not locally attached. Routers, or other layer-3 devices, are specified at the Network layer and provide routing services in an internetwork. In the Open Systems Interconnection (OSI) communications model, the Network layer knows the address of the neighboring nodes in the network, packages output with the correct network address information, selects routes and quality of service and recognizes and forwards to the Transport layer incoming messages for local host domains. Among existing protocol that generally map to the OSI network layer are the Internet Protocol (IP) part of TCP/IP and NetWare IPX/SPX. Both IP Version 4 and IP Version 6 (IPv6) map to the OSI network layer. Some common protocols which work at the Network layer are: IP, DHCP, ICMP, IGRP, EIGRP, RIP, RIP2, MARS. As mentioned above, the Internet Protocol works on this layer. This means that when you see an IP address, for example 192.168.0.1, this IP address maps to the Network layer in the OSI model, in other words only the Network layer deals with or cares about IP addresses in the OSI model. To keep things simple, IP is analysed under the "Protocols" section.Next - OSI Layer 4 - Transport Layer
Hello Peers, Today we are going to share all week assessment and quizzes answers of The Bits and Bytes of Computer Networking, Google IT Support Professional course launched by Coursera for totally free of cost✅✅✅. This is a certification course for every interested student. In case you didn’t find this course for free, then you can apply for financial ads to get this course for totally free. Check out this article for – “How to Apply for Financial Ads?” About this Course-This course is designed to provide a full overview of computer networking. We’ll cover everything from the fundamentals of modern networking technologies and protocols to an overview of the cloud to practical applications and network troubleshooting. By the end of this course, you’ll be able to:
Skills you will gain
Here, you will find The Bits and Bytes of Computer Networking Exam Answers in Bold Color which are given below. Use “Ctrl+F” To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A “Find” Option There. Use These Option to Get Any Random Questions Answer.Apply Link – The Bits and Bytes of Computer Networking The Bits and Bytes of Computer Networking Coursera Quiz & Assessment Answers1. Introduction To NetworkingThe Data Link LayerQuestion 1How many octets are there in a MAC address?
Question 2What address is used for Ethernet broadcasts?
Question 3What is a cyclical redundancy check?
Networking DevicesQuestion 1Which of the following statements accurately describe the differences between a hub and a switch? Check all that apply.
Question 2What does LAN stand for?
Question 3What’s a router?
TCP/IPQuestion 1Which of the following is an example of a network layer (layer 3) protocol?
Question 2What’s the difference between a client and a server?
Question 3Which of the following are examples of layers of our five-layer network model? Check all that apply.
The Data Link LayerQuestion 1How many octets are there in a MAC address?
Question 2What address is used for Ethernet broadcasts?
Question 3What is a cyclical redundancy check?
The Physical LayerQuestion 1What is the type of modulation used by twisted pair cable computer networks known as?
Question 2What’s the difference between full and half duplex?
Graded Assessmenthttps://drive.google.com/drive/folders/1GHkRJ5XEO3KyXQ9pGwbWIbnPIwxdPEQj?usp=sharing 2. The Network LayerRoutingQuestion 1Select examples of routing protocols. Check all that apply.
Question 2Who is permitted to use non-routable address space?
Question 3A typical routing table may contain which of the following? Check all that apply.
SubnettingQuestion 1What does CIDR stand for?
Question 2Which of the following is a correct form of CIDR notation?
Question 3How many octets does a subnet mask have?
The Network LayerQuestion 1Please select all of the valid IP addresses. Check all that apply.
Question 2What happens to the TTL field of an IP datagram every time it reaches a router?
Graded Assessmenthttps://drive.google.com/drive/folders/1oP8KyMTq72UtQFuDlhaDjcg8GwizRkql?usp=sharing 3. The Transport & Application LayerThe Application LayerQuestion 1Unlike our five-layer model, the OSI network model adds two more layers on top of the Application Layer. Select examples of these new layers below.
Question 2An example of something that operates at the application layer is:
Question 3What’s the standard number for a TTL field? 81632 64
The Transport LayerQuestion 1What ordering of TCP flags makes up the Three-way Handshake?
Question 2Transport layer protocols, like TCP and UDP, introduce the concept of a port. How many bits is a port field?
Question 3Please select all valid TCP control flags. Question 4A device that blocks traffic that meets certain criteria is known as a __.
Peer Graded Assessmenthttps://drive.google.com/drive/folders/1P7X2FgxgYxQzENBcvvq0TSej8PUYVM5A?usp=sharing 4. Network ServicesDynamic Host Configuration ProtocolQuestion 1What are the four things that all computers need configured in order to operate on a modern network? Check all that apply.
Question 2When using Fixed Allocation DHCP, what’s used to determine a computer’s IP?
Question 3The process by which a client configured to use DHCP attempts to get network configuration information is known as _____.
Name Resolution in PracticeQuestion 1An A Record contains what?
Question 2Select all that are true.
Question 3MX stands for __.
Question 4A fully qualified domain name can contain how many characters?
Name ResolutionQuestion 1What transport layer protocol does DNS normally use?
Question 2A DNS TTL determines what?
Question 3How many root servers are there?
Network Address TranslationQuestion 1NAT addresses concerns over the dwindling IPv4 address space by _______.
Question 2What technique allows for inbound traffic through a NAT?
Question 3The total number of IPv4 addresses is approximately:
VPNs & ProxiesQuestion 1Two-factor authentication is_________________________.
Question 2VPNs are known as a _ protocol.
Question 3A proxy is something that ___________.
Peer Graded Assessmenthttps://drive.google.com/drive/folders/1iEuCrFGg5OqaH6JDn1SKZdiQnCf3kfak?usp=sharing 5. Connecting To The InternetBroadband InternetQuestion 1T1 is short for __.
Question 2How fast is a T1 line?
Question 3Select all statements that are true of cable internet connections.
POTS and Dial-upQuestion 1Another term for POTS, or the Plain Old Telephone System, is ___.
Question 2A baud rate is a measurement of the number of __________.
WANsQuestion 1WAN stands for __.
Question 2In a WAN, the area between a demarcation point and the ISP’s core network is known as _.
Question 3A point-to-point VPN is also known as a __.
Wireless NetworkingQuestion 1How many address fields does an 802.11 header have?
Question 2A wireless channel is __.
Question 3Choose all of the frequencies that wireless networks typically operate on. Peer Graded Assessmenthttps://drive.google.com/drive/folders/1cdYH40BId4-MDPz04au6cTSsgetwbtrB?usp=sharing 6. Trouble the Future of The InternetDigging into DNSQuestion 1One of Level 3’s public DNS servers is __.
Question 2A DNS resolver tool available on all major desktop operating systems is __.
Question 3The organization responsible for DNS at a global level is __.
IPv6Question 1An IPv6 address is how many bits long?
Question 2The very first field in an IPv6 header is the _.
Question 3The IPv6 header field that indicates how many routers can forward a packet before it’s discarded is called the __.
The CloudQuestion 1A piece of software that runs and manages virtual machines is known as a __.
Question 2Office 365 Outlook is an example of _.
Question 3A hybrid cloud is ____.
Verifying ConnectivityQuestion 1The protocol used to communicate network errors is known as __.
Question 2The ping utility sends what message type?
Question 3On Windows, one of the tools you can use to verify connectivity to a specific port is __.
Graded Assessmenthttps://drive.google.com/drive/folders/1C5ASejGsj5OI8WW752T_QkqQMV2czcHZ?usp=sharing |