midterm-cst8108-2.pdf

8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Quiz Submissions - Midterm exam Ramandeep Kaur (username: kaur0631) Attempt 1 Written: Jun 21, 2021 11:31 AM - Jun 21, 2021 1:11 PM Submission View...

8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Quiz Submissions - Midterm exam Ramandeep Kaur (username: kaur0631) Attempt 1 Written: Jun 21, 2021 11:31 AM - Jun 21, 2021 1:11 PM Submission View Released: Jun 24, 2021 1:00 PM Question 1 1 / 1 point A technician is adding a new PC to a LAN. After unpacking the components and making all the connections, the technician starts the PC. After the OS loads, the technician opens a browser, and verifies that the PC can reach the Internet. Why was the PC able to connect to the network with no additional configuration? The PC does not require any additional information to function on the network. The PC used DNS to automatically receive IP addressing information from a server. The PC was preconfigured to use DHCP. The PC virtual interface is compatible with any network. The PC came preconfigured with IP addressing information from the factory. Question 2 1 / 1 point In the TCP/IP protocol suite, the application layer is roughly equivalent to which layers of the OSI model? I. Application II. Presentation III. Session IV. Transport V. Network II and III I and II I only I, II and IV I, II and III https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 1/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Question 3 1 / 1 point What command is used to show the IP address of a laptop? Answer: ipconfig Question 4 0 / 1 point What type of Ethernet cable is used to connect a router port to a computer? Rollover cable Coaxial Cross-over Straight-through Question 5 0 / 1 point Which is a characteristic of a peer-to-peer network? lacks centralized administration better security expensive to implement better device performance when acting as both client and server scalable Question 6 1 / 1 point Which of the following addresses does a device use when deciding to accept a frame? source MAC address destination IP address destination MAC address https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 2/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College source IP address source Ethernet address Question 7 1 / 1 point What do the first six hexadecimal characters in a MAC address represent? Organizational Unique Identifier The type of network card (Wi-Fi, 10BaseT etc.) The type of device (router, host, switch etc.) None of the choices Interface Unique Identifier Question 8 0 / 1 point Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame? The switch will discard the frame. https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 3/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College The switch will forward the frame only to ports 1 and 3. The switch will forward the frame to all ports. The switch will forward the frame to all ports except port 4. The switch will forward the frame only to port 2. Question 9 1 / 1 point What is auto-MDIX? a type of Cisco switch a feature that detects Ethernet cable type an Ethernet connector type a type of port on a Cisco switch Question 10 1 / 1 point ARP spoofing comes from an attacker inside of the local network. It's also called a man-in-the- middle attack. True False Question 11 1 / 1 point What happens if you enter the command arp -a in a Windows command prompt? Nothing because only switches keep lists of addresses You see a list of IP addresses and matching MAC addresses that the workstation has in its memory The workstation sends out an ARP request to find a MAC address You see a list of active network connections https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 4/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Question 12 1 / 1 point Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame? fast-forward switching fragment-free switching store-and-forward switching cut-through switching Question 13 1 / 1 point The destination address of a frame destined for all nodes of a network is? 255.255.255.255 FF:FF:FF:FF:FF:FF 32 1s (ones) 46 1s (ones) Question 14 1 / 1 point Which expression accurately defines the term bandwidth? a set of techniques to manage the utilization of network resources a measure of the data carrying capacity of the media a state where the demand on the network resources exceeds the available capacity a method of limiting the impact of a hardware or software failure on the network Question 15 0 / 1 point What is the format of a Broadcast MAC Address? ff-ff-ff-ff-ff-ff-ff https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 5/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College BR-OA-DC-AS-T0-00 00-00-00-00-00-00 FF-FF-FF-FF-FF-FF 23-af-56-b4-9c-4e Question 16 1 / 1 point Which layer does IP protocol belong to? Give the layer number. Answer: 3 Question 17 1 / 1 point How many bits and Hex digits does the MAC Address have? MAC Addresses don’t use Hex digits 48 bits (12 Hex digits) 32 bits (18 Hex digits) 24 bits (6 Hex digits) 48 bits (18 Hex digits) Question 18 2 / 2 points Which two statements about Layer 2 Ethernet switches are true? (select two) A) Layer 2 switches have multiple collision domains. B) Layer 2 switches route traffic between different networks. C) Layer 2 switches prevent broadcasts. D) Layer 2 switches can send traffic based on the destination MAC address. E) Layer 2 switches decrease the number of broadcast domains. https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 6/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Question 19 0 / 1 point Which network device(s) break the collision domain? Router only Ethernet Switch only Router and Ethernet Switch Ethernet Switch and Hub Question 20 0 / 1 point PC0 needs to send a frame to PC1. PC0 broadcasts an ARP request to learn the MAC address of which device? Router0 PC1 https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 7/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Router1 Switch0 Question 21 1 / 1 point The above network diagram shows the simplified MAC address next to their respective interfaces. PC0 sends a message to PC1. To which MAC Address does PC0 send the frame? 00-01-0e 00-01-0b 00-01-0c 00-01-0d 00-01-0f Question 22 1 / 1 point https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 8/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College An interface on Router A is connected to an interface on Router B. What is Router A's default gateway? Select the most correct answer. It is the IP address of Router A's interface. It is the IP Address of Router B. It is a Virutal Address used for Routing purposes The default gateway is only used when the actual gateway has not been configured. It is the IP address of Router B's connected interface. Question 23 1 / 1 point Which layer encapsulates the Network Layer PDU? Transport Application Physical Network Data Link Question 24 0 / 1 point https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=0… 9/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College After PC0 sends the message to PC1 in the above diagram, what is the entry in PC0’s ARP Table? IP Addr=192.168.1.2; MAC-Addr=00-01-0b IP Addr=192.168.1.1; MAC-Addr=00-01-0b IP Addr=192.168.1.1; MAC-Addr=00-01-0b AND IP Addr=192.168.3.2; MAC-Addr=00- 01-0f IP Addr=192.168.3.2; MAC-Addr=00-01-0f IP Addr=192.168.1.2; MAC-Addr=00-01-0a Question 25 1 / 1 point Does collision occur between two devices both working on full-duplex mode? Not sure No https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 10/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Yes, It depends on the type of device Yes, It depends on the network media Question 26 1 / 1 point The four major LAN computer network topologies are: cab, ring, peer-to-peer, and star. bus, star, token ring, and hybrid. bus, point-to-point, star, and hybrid. peer-to-peer, point-to-point, hub, and hybrid. Microsoft, Novell, Linux, and Unix Question 27 1 / 1 point What is the function of the Physical Layer Protocol? It is responsible for the transmission of bits on the physical medium. It performs formatting of data to the user. It includes the user I/O devices such as keyboard and monitor. It manages the network device to network device link connection. It opens, closes and manages sessions. Question 28 0 / 1 point No matter how it's configured, a single switch port is considered what? A separate collision domain A separate multicast domain A separate broadcast domain https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 11/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College A separate unicast domain Question 29 1 / 1 point Which protocol implements ping request and replies? ICMP Client/Server IP Echo Request/Echo Reply Question 30 0 / 1 point PC0 needs to send a frame to PC2. PC0 broadcasts an ARP request to learn the MAC address of which device? PC1 Switch0 https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 12/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Router1 Router0 Question 31 0 / 1 point What is the basic operation of an Ethernet Switch? After a frame arrives at a switch port, the Switch looks up the destination MAC address in the arp table to determine on which port to send the frame and then sends the frame. After a frame arrives at a switch port, the Switch looks up the destination MAC address in the MAC Address Table to determine on which port to send the frame and then sends the frame. After a packet arrives at a switch port, the Switch looks up the source MAC address in the MAC Address Table to determine on which port to send the frame and then sends the frame. After a frame arrives at a switch port, the Switch looks up the destination MAC address in the Routing Table to determine on which port to send the frame and then sends the frame. Question 32 0 / 1 point Switches create multiple ____________. Networks Collision domains WANS Broadcast Domains Question 33 1 / 1 point What is NIC? Navigation Interface Card Network Interface Card https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 13/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Network Internet Card Network Internal Card Question 34 1 / 1 point If the default gateway is configured incorrectly on the host, what is the impact on communications? There is no impact on communications. The host is unable to communicate on the local network. The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network. The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. Question 35 0 / 1 point Every network interface card (NIC) comes with its own __________ address. Open Systems Interconnection (OSI) physical(MAC) Dynamic Host Configuration Protocol(DHCP) Internet Protocol (IP) Question 36 1 / 1 point At which layer of the OSI model would a physical address be encapsulated? physical layer transport layer network layer https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 14/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College data link layer Question 37 1 / 1 point Refer to OSI model, which layer does ARP protocal belong to? Give the layer number. Answer: 2 Question 38 1 / 1 point What is Encapsulation? It is the process of obtaining an IP addresses which corresponds to a given MAC address It is the process of adding a protocol header and sometimes a trailer to a block of application data. It is the process of obtaining a MAC addresses which corresponds to a given IP address. It is the process of removing the data portion of the PDU and passing it up to the next higher layer. Question 39 1 / 1 point A __________ is a description of the layout of the region or area covered by a network. network hub network topology network protocol network router network map Question 40 1 / 1 point What command can be used to test connectiviy between two computers that are attached to a network? Answer: ping https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 15/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Question 41 0 / 1 point What PDU is encapsulated at the Network Layer? A Frame is encapsulated at the Network Layer. A Packet is encapsulated at the Network Layer. A Segment is encapsulated at the Network Layer. Data is encapsulated at the Network Layer. Question 42 1 / 1 point What address does a switch use to make forwarding decisions? IPX IP MAC Novell Question 43 1 / 1 point __________ define a common method of communication between computers. sessions protocols topologies routers Question 44 1 / 1 point Which message delivery option is used when all devices need to receive the same message simultaneously? multicast https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 16/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College unicast broadcast duplex Question 45 1 / 1 point Which statement describes a characteristic of a converged network? A single network that delivers voice, video, and data to a variety of devices. Network services are delivered over a wide range of network platforms. The network uses different technologies for voice, video, and data. The network establishes separate communication channels for each network service. Question 46 2 / 2 points Which of these are Intermediary Devices? (select two) A) PC B) Router C) VoiP Phone D) Tablet E) Switch Question 47 1 / 1 point A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission? Ethernet, TCP, IP, HTTP https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 17/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College HTTP, TCP, IP, Ethernet HTTP, IP, TCP, Ethernet Ethernet, IP, TCP, HTTP Question 48 1 / 1 point When a switch receives a frame and the source MAC address is not found in the switching table, what action will be taken by the switch to process the incoming frame? The switch ends an acknowledgement frame to the source MAC of this incoming frame. The switch will request that the sending node resend the frame. The switch will issue an ARP request to confirm that the source exists. The switch will map the source MAC address to the port on which it was received. Question 49 1 / 1 point What is a LAN? Location Area Network Local Area Networking Local Area Network Line Area Network Question 50 1 / 1 point Which layer of the OSI model does a switch use to make a forwarding decision? Give the layer number. Answer: 2 Question 51 1 / 1 point What is the general term that is used to describe a piece of data at any layer of a networking model? https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 18/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College protocol data unit frame packet segment Question 52 1 / 1 point What is the difference between the OSI Protocol Stack Model and the TCP/IP Stack Model? The TCP/IP Model was developed for the TCP and IP protocol suites whereas the OSI Model is generic. The OSI Model has 4 layers whereas the TCP/IP Model has 7 layers. The OSI Model was developed by the IETF whereas the TCP/IP Model was developed by the ITU standards body. The top layer of the TCP/IP Model is the Transport layer whereas layer 2 of the OSI Model is the Transport layer. Question 53 0 / 1 point What type of Ethernet cable is used to connect a router to a computer? Rollover cable Straight-through Coaxial Cross-over Question 54 0 / 1 point https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 19/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College For the PC information shown above, what is the MAC address of the Default Gateway? (please use the same MAC address format as in the picture) Answer: 10.70.233.13 (00-00-5e-00-01-93) Question 55 0.4 / 2 points Which of the following statements is true about Local Area Networks? (select two) A) LANs use several types of media including wireless, copper wire and fiber optics to connect network devices. B) Bluetooth is an example of a Local Area Network. C) LANs typically connect devices across a large geographical area such as a across the country. D) LANs are networks which connect other networks. E) LANs typically connect devices within a small geographic area such as a building. Question 56 0 / 1 point https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 20/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College For the above network diagram, how many Destination Ethernet Addresses are required to send a message from PC0 to PC1? Answer: 1 (3, three) Question 57 1 / 1 point What is true concerning physical and logical topologies? The logical topology is always the same as the physical topology. Logical topologies refer to how a network transfers data between devices. Physical topologies display the IP addressing scheme of each network. Physical topologies are concerned with how a network transfers frames. Question 58 0 / 1 point Why do network devices need two layers of addressing, Data Link Layer Address (i.e. Ethernet) and a Network Layer Address (i.e. IP Address)? Since MAC addresses are unique, a Data Link Layer Addresses can be used to forward frames to any destination. A Network Layer Address is logical an can only be used to send data to a destination on the same network segment. A Data Link Layer Address is used to forward the packet from one network segment to another network segment. The Network Layer Address is used to forward the frame from one device to another within the network segment. The IP Address can be used to forward packets to the final destination but historically Ethernet was developed first so it continues to be used for Data Link Addressing. A Network Layer Address is used to forward the packet from one network segment to another network segment. The Data Link Address is used to forward the frame from one device to another within the network segment. Question 59 1 / 1 point How many functional layers are in the OSI protocol model? Answer: 7 Question 60 0.4 / 2 points https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 21/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College What information is stored in the Switch's MAC Address Table? (Select two) A) Attached Device Type (i.e. PC, VoIP, Video) B) Attached Device's IP Address C) Current Date and Time D) Attached Device's MAC Address E) Switch Port Number Question 61 0 / 1 point What happens to runt frames (less than 64 bytes) received by a Cisco Ethernet switch? The frame is dropped. The frame is sent to the default gateway. The frame is broadcast to all other devices on the same network. The frame is returned to the originating network device. Question 62 1 / 1 point What protocol can be used by a host on a network to find the MAC address of another device based on an IP address? Answer: ARP Question 63 1 / 1 point Which is a criteria used to help select a network medium from various network media? none of these are correct the cost of the end devices utilized in the network the distance the selected medium can successfully carry a signal the number of intermediary devices installed in the network https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 22/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College the types of data that need to be prioritized Question 64 0 / 1 point What is the purpose of the Network Layer? Select 2 answers. Forwarding: Move an incoming packet to the next hop Router interface. Routing: Determine the path to reach relevant destination networks. Switching: Move an incoming frame to the outgoing interface. ACK/NACK: Send an acknowledgement when a packet is received. Reordering: ensure that packets arrive in the same order they were sent. Question 65 0 / 1 point What is NOT a characteristic of hosts on the same network segment? They share the same subnet mask Two hosts may have the same host ids They share the same network id They share the same broadcast address Question 66 0 / 1 point Refer to the exhibit. How many broadcast domains exist in the network topology? 5 https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 23/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College 3 8 6 4 Question 67 1 / 1 point What layer lies between the network layer and the application layer? Data link Transport Physical None of the choices Question 68 1 / 1 point Refer to the image below. What is the Windows command that opens this window? https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 24/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College Answer: ncpa.cpl Question 69 0 / 1 point Which device performs the function of determining the path that messages should take through internetworks? a web server a switch a router a DSL modem a firewall Question 70 0 / 2 points Which topology scenarios may result in multiple MAC addresses being assigned to one Switch Port in the MAC Address Table? (select two) A) Multiple devices are connected to the same physical switch port. B) Two switches are connected together. C) An Ethernet hub is connected to a Switch port. D) A router is connected to a Switch port. E) This is impossible and it means that there has been a MAC Address Table error. Attempt Score:47.8 / 74 Overall Grade (highest attempt):47.8 / 74 Done https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 25/26 8/17/2021 : Quiz Submissions - Midterm exam - 21S_CST8108_010 Network Programming Basics - Algonquin College https://brightspace.algonquincollege.com/d2l/lms/quizzing/user/quiz_submissions_attempt.d2l?isprv=&qi=419786&ai=4095775&isInPopup=0&cfql=… 26/26