Module 8 - Network Layer Quiz PDF

**Module 8**: **Network Layer - Introduction to Networks Quiz** 1. **What is the primary function of the network layer?** - A\) Ensures data is delivered reliably to the destination - B\) Handles routing and forwarding of packets between devices - C\) Establishes a connection...

**Module 8**: **Network Layer - Introduction to Networks Quiz** 1. **What is the primary function of the network layer?** - A\) Ensures data is delivered reliably to the destination - B\) Handles routing and forwarding of packets between devices - C\) Establishes a connection between the sender and receiver - D\) Encrypts data for secure transmission 2. **Which two protocols are the principal communication protocols at the network layer?** - A\) TCP and UDP - B\) IPv4 and IPv6 - C\) FTP and HTTP - D\) ARP and DNS 3. **What does \"IP is connectionless\" mean?** - A\) IP requires a pre-established connection before sending packets - B\) IP ensures the packet will be delivered and acknowledged - C\) IP sends packets without needing to notify the receiver in advance - D\) IP always sends packets to a specified connection 4. **What is the role of NAT (Network Address Translation) in networking?** - A\) To establish a direct connection between two devices - B\) To translate public IP addresses into private IP addresses - C\) To encrypt data before transmission - D\) To handle fragmentation of packets 5. **Which field in an IPv4 header identifies the source and destination of the packet?** - A\) Time to Live (TTL) - B\) Header Checksum - C\) Source and Destination IP Address - D\) Protocol 6. **What is the maximum size of an IPv6 address?** - A\) 16 bits - B\) 32 bits - C\) 64 bits - D\) 128 bits 7. **Which of the following is a significant difference between IPv4 and IPv6 headers?** - A\) IPv4 uses a 128-bit address, whereas IPv6 uses a 32-bit address - B\) IPv6 headers are simpler with fewer fields compared to IPv4 - C\) IPv4 does not include a source IP address, but IPv6 does - D\) IPv6 uses a variable header length, while IPv4 uses a fixed length 8. **What is a key concept of fragmentation in IP transmission?** - A\) IPv6 does not support fragmentation - B\) IPv4 always requires fragmentation for every packet - C\) Fragmentation causes higher transmission speeds - D\) Fragmentation reduces latency in network communication 9. **Which of the following fields is removed in the IPv6 header compared to IPv4?** - A\) Source Address - B\) Time to Live (TTL) - C\) Header Checksum - D\) Protocol 10. **What does the \"Hop Limit\" field in the IPv6 header do?** - A\) Limits the number of hops a packet can take before being discarded - B\) Sets the maximum packet size allowed in the network - C\) Specifies the type of protocol used in the packet - D\) Defines the source and destination IP addresses 11. **How does IPv6 address the limitations of IPv4?** - A\) By using 32-bit addresses - B\) By increasing the number of available IP addresses - C\) By reducing network overhead and packet size - D\) By eliminating the need for routers 12. **Which of the following is a limitation of IPv4?** - A\) It supports end-to-end communication without the need for NAT - B\) It can handle a limited number of IP addresses - C\) It provides automatic address configuration - D\) It eliminates the need for private addressing 13. **What is a characteristic of the Time to Live (TTL) field in the IPv4 header?** - A\) It defines how long a packet should stay in the network - B\) It determines the maximum number of hops the packet can take - C\) It is used to calculate the checksum of the header - D\) It specifies the source and destination IP addresses 14. **What is the maximum size of an IPv4 address?** - A\) 32 bits - B\) 64 bits - C\) 128 bits - D\) 256 bits 15. **What is the role of the \"Version\" field in an IP header?** - A\) It indicates the type of transport layer protocol used - B\) It specifies the time-to-live for the packet - C\) It indicates whether the packet is IPv4 or IPv6 - D\) It identifies the source of the packet This version should now be ready for use as a clean quiz on the **network layer** without including any external tools like Otter. Let me know if you need further adjustments! Part 2 Thank you for the clarification! Here is the complete 35-question quiz, consisting of the first 15 questions followed by the remaining 20: ### **Comprehensive Networking Concepts and Routing Quiz** #### **Part 1: Networking Concepts (1-15)** #### 1. **What is the primary function of a router?** - A\) To assign IP addresses to devices - B\) To forward data packets between networks - C\) To connect devices within the same network - D\) To provide network security\ **Answer:** B #### 2. **What does the term \"IP address\" refer to?** - A\) A physical address of a network device - B\) A unique identifier for a device on a network - C\) The port number used in communication - D\) A type of network protocol\ **Answer:** B #### 3. **Which of the following is a private IP address range?** - A\) 192.168.1.1 - B\) 8.8.8.8 - C\) 172.15.0.1 - D\) 200.200.200.200\ **Answer:** A #### 4. **What is the purpose of a subnet mask?** - A\) To define the number of hops a packet will make - B\) To determine which portion of an IP address is the network and which is the host - C\) To route packets to different networks - D\) To allow a device to have multiple IP addresses\ **Answer:** B #### 5. **Which of the following is true about IPv6 addresses?** - A\) They are 32 bits long. - B\) They use hexadecimal notation. - C\) They are used primarily for local area networks. - D\) They do not support subnetting.\ **Answer:** B #### 6. **Which of the following commands is used to view the IP configuration of a device in Windows?** - A\) ping config - B\) ipconfig - C\) netstat - D\) traceroute\ **Answer:** B #### 7. **Which of the following statements is true about a subnet mask in an IPv4 network?** - A\) It is a unique identifier for each network device. - B\) It determines the number of available hosts within a subnet. - C\) It helps route data packets to their final destination. - D\) It converts IP addresses into human-readable names.\ **Answer:** B #### 8. **What is the IPv4 address format?** - A\) 32 bits, separated by periods - B\) 128 bits, separated by colons - C\) 64 bits, separated by commas - D\) 16 bits, separated by spaces\ **Answer:** A #### 9. **Which of the following IP addresses is a valid public address?** - A\) 192.168.1.1 - B\) 172.16.0.1 - C\) 10.0.0.1 - D\) 8.8.8.8\ **Answer:** D #### 10. **Which of the following protocols is used for routing between different networks?** - A\) ARP - B\) HTTP - C\) BGP - D\) DNS\ **Answer:** C #### 11. **Which of the following IP addresses is used for an IPv4 loopback address?** - A\) 192.168.0.1 - B\) 127.0.0.1 - C\) 172.16.0.1 - D\) 10.0.0.1\ **Answer:** B #### 12. **In IPv6, which address is used for the loopback?** - A\) 0::1 - B\) 192.168.0.1 - C\) 10::1 - D\) 127::1\ **Answer:** A #### 13. **Which command displays the routing table in Windows?** - A\) route print - B\) netstat -r - C\) ping route - D\) Both A and B\ **Answer:** D #### 14. **Which of the following describes the role of the default gateway?** - A\) It routes packets to other hosts on the same network. - B\) It is responsible for sending packets to remote networks. - C\) It processes packets for local network devices. - D\) None of the above.\ **Answer:** B #### 15. **What is the primary purpose of a routing table?** - A\) To manage local network traffic only - B\) To determine the best path to forward packets to the destination - C\) To assign IP addresses to devices - D\) To ensure packets are never lost\ **Answer:** B #### **Part 2: Routing Basics (16-35)** #### 16. **Which of the following statements is true about a host routing table?** - A\) It contains both IPv4 and IPv6 routing information. - B\) It is automatically created by the router. - C\) It is manually configured by the network administrator. - D\) It determines whether packets go to the local network or need to be forwarded to a remote network.\ **Answer:** D #### 17. **What happens when a device has no default gateway or an incorrect default gateway?** - A\) The device can still communicate with other devices on the same local network. - B\) The device's traffic can leave the local network and reach remote destinations. - C\) The device cannot communicate with any device outside its local network. - D\) The device will crash and restart.\ **Answer:** C #### 18. **What type of route is automatically added by a router when an interface is active and has an IP address?** - A\) Static Route - B\) Directly Connected Route - C\) Remote Route - D\) Default Route\ **Answer:** B #### 19. **In the context of routers, what is meant by the term \'hop\'?** - A\) A process of dynamically routing packets - B\) The packet's journey through a switch - C\) The movement of a packet through each router in the network - D\) The method of forwarding packets within the same network\ **Answer:** C #### 20. **Which type of route is used by a router when it has no specific entry in its routing table for a destination address?** - A\) Directly Connected Route - B\) Static Route - C\) Default Route - D\) Remote Route\ **Answer:** C #### 21. **Which of the following is true regarding dynamic routing protocols?** - A\) They must be manually configured on each router. - B\) They automatically discover and maintain routes to remote networks. - C\) They only work in small, non-redundant networks. - D\) They require static routes to operate.\ **Answer:** B #### 22. **True or False: A default gateway must have an IP address in the same range as the local network.** - A\) True - B\) False\ **Answer:** A #### 23. **Which of the following is not a type of route in a router\'s routing table?** - A\) Remote Route - B\) Directly Connected Route - C\) Default Route - D\) Local Route\ **Answer:** D #### 24. **True or False: A host only needs a default gateway if it is communicating with devices outside of its local network.** - A\) True - B\) False\ **Answer:** A #### 25. **What is the main difference between a static route and a dynamic route?** - A\) Static routes are automatically configured; dynamic routes must be manually configured. - B\) Static routes are manually configured; dynamic routes are automatically discovered and maintained. - C\) Static routes cannot be used with dynamic routing protocols. - D\) There is no difference.\ **Answer:** B #### 26. **True or False: IPv4 headers are simpler and more efficient than IPv6 headers.** - A\) True - B\) False\ **Answer:** B #### 27. **What type of route is added to a router\'s table when a static route is manually configured?** - A\) Local Route - B\) Remote Route - C\) Static Route - D\) Default Route\ **Answer:** C #### 28. **Which of the following is the correct command to view the IPv4 routing table on a Cisco router?** - A\) route show ip - B\) show ip route - C\) netstat -r - D\) display route ipv4\ **Answer:** B #### 29. **Which device is considered the \'gateway\' for devices on a local network?** - A\) A hub - B\) A router - C\) A switch - D\) A modem\ **Answer:** B #### 30. **True or False: A router\'s default route is used when there is no match in the routing table for a packet's destination.** - A\) True - B\) False\ **Answer:** A #### 31. **Which of the following is a dynamic routing protocol?** - A\) ARP - B\) RIP - C\) HTTP - D\) DNS\ **Answer:** B #### 32. **True or False: A router uses the routing table to determine the best path for data to travel across the network.** - A\) True - B\) False\ **Answer:** A #### 33. **What is the first step a router takes when it receives a packet?** - A\) It examines the packet's destination IP address. - B\) It forwards the packet to the default gateway. - C\) It encapsulates the packet into another frame. - D\) It checks if the packet is from the local network.\ **Answer:** A #### 34. **Which of the following describes a \"classful\" IP addressing system?** - A\) It uses subnetting to divide the network into smaller subnets. - B\) It does not require subnetting, as the IP address class determines the size of the subnet. - C\) It only supports IPv6 addressing. - D\) It uses dynamic routing.\ **Answer:** B #### 35. **What is the purpose of the Address Resolution Protocol (ARP)?** - A\) It assigns IP addresses to devices. - B\) It resolves an IP address to a MAC address on a local network. - C\) It encrypts IP addresses for security. - D\) It routes traffic between different networks.\ **Answer:** B This completes the 35-question quiz! Feel free to test your knowledge or share it with others for practice.