Router And Servers: MikroTik Certified Network Associate Exam! Trivia Quiz

Ping uses the ICMP (Internet Control Message Protocol) protocol. ICMP is a network protocol used to send diagnostic messages and error reports between network devices. Ping uses ICMP echo requests and echo replies to measure the round-trip time and packet loss between two devices on a network. ICMP is a connectionless protocol that operates at the network layer of the OSI model, making it suitable for troubleshooting network connectivity and determining if a host is reachable.

The Open Systems Interconnection (OSI) model is a conceptual framework that standardizes the functions of a communication system into seven different layers. Each layer has a specific role and interacts with the layers above and below it. These layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application. Therefore, the correct answer is 7.

The basic unit of a physical network at the OSI Layer 1 is a bit. A bit is the smallest unit of data in a computer and can have a value of either 0 or 1. At the physical layer, data is transmitted in the form of electrical or optical signals, which are represented as bits. These bits are then grouped together to form bytes, frames, and headers at higher layers of the OSI model. However, at the physical layer, the individual units of data being transmitted are bits.

A MAC address, also known as a Media Access Control address, is a hardware coded address found on an interface. It is a unique identifier assigned to network interfaces for communications on the physical network. MAC addresses are used to ensure that data is sent to the correct device within a network. Unlike IP addresses that can change, MAC addresses are permanent and cannot be modified. Therefore, the correct answer for the term of the hardware coded address found on an interface is MAC Address.

The correct answer is /system scheduler. MikroTik RouterOS commands can be scheduled to run at specific times using the /system scheduler command. This allows users to automate tasks and execute commands at regular intervals, such as once a day. The scheduler can be configured to run commands at a specific time, on specific days of the week, or even periodically with a defined interval. This feature provides flexibility and convenience for managing and automating tasks on the MikroTik router.

The given MAC address, 00:00:5E:80:EE:B0, is a valid MAC address. MAC addresses are unique identifiers assigned to network interfaces, and they consist of six pairs of hexadecimal digits separated by colons. The given MAC address follows this format and does not contain any invalid characters or incorrect formatting. Therefore, it is a valid MAC address.

Netinstall is a tool provided by MikroTik that allows users to reinstall the RouterOS operating system on their MikroTik devices. This can be useful in situations where the RouterOS has become corrupted or is not functioning properly. By using Netinstall, users can easily restore their devices to a working state by reinstalling the RouterOS.

The default route that will be active is the one with a lower distance, which in this case is the route via gateway 2.2.2.2. The distance parameter determines the priority of the route, with a lower value indicating a higher priority. Since the distance of the route via gateway 2.2.2.2 is 5 and the distance of the route via gateway 1.1.1.1 is 10, the route via gateway 2.2.2.2 will be active.

The correct answer is Layer 2. The MAC layer, also known as the Media Access Control layer, is responsible for controlling access to the physical medium and handling the transmission of data frames. It is located at Layer 2 of the OSI model.

In the header of an IP packet, there are two IP addresses. The first IP address is the source IP address, which identifies the sender of the packet. The second IP address is the destination IP address, which identifies the intended recipient of the packet. These IP addresses are crucial for routing the packet across the network and ensuring it reaches the correct destination.

Collisions are not possible in full-duplex Ethernet networks. In full-duplex mode, data can be transmitted and received simultaneously, eliminating the possibility of collisions. Each device has its own dedicated transmit and receive channels, allowing for full-duplex communication without any collisions.

The network address refers to the first address of the subnet. It is the address that represents the network itself and is used for routing purposes. The first usable address of the subnet would be the second address, as the first address is reserved for the network address. The last address of the subnet is typically used as the broadcast address, so it is not considered the network address.

ARP (Address Resolution Protocol) is not used in the IPv6 protocol. Instead, IPv6 uses a different protocol called NDP (Neighbor Discovery Protocol) to perform address resolution and find the link-layer addresses of neighboring devices. NDP serves similar functions to ARP in IPv4, but it has additional features and improvements to support the larger address space and enhanced functionality of IPv6. Therefore, the correct answer is False.

The correct answer is "no extra package required". This means that for static routing functionality, you do not need any additional software package apart from the RouterOS 'system' package. This implies that the necessary routing functionality is already included in the 'system' package itself, and there is no need to install any other package for static routing.

It is not possible to set Router A to use "/PPP secret" accounts from Router B to authenticate PPPoE customers. Each router running as a PPPoE server operates on its own broadcast domain and manages its own set of accounts for authentication. The "/PPP secret" accounts are specific to Router B and cannot be accessed or used by Router A for authentication purposes. Therefore, the correct answer is False.

A 20-bit subnet allows for 2^20 total addresses. However, 2 addresses are reserved for network and broadcast addresses, leaving 2^20 - 2 = 4094 usable IP addresses.

The client with IP address 10.10.0.33 is able to obtain 2M upload/download because Simple Queue number 0 defines 2M for upload and download for that target IP.

It is not possible to set Router A to use "ppp secret" accounts from Router B to authenticate PPPoE customers because each router operates on its own broadcast domain, meaning they cannot share authentication information. Each router must have its own set of "ppp secret" accounts to authenticate PPPoE customers within its own broadcast domain. Therefore, the answer is false.

The correct configuration on the client PC to access the internet is IP:192.168.2.115/24 gateway: 192.168.2.1. This is because the client PC should have an IP address within the same subnet as the router's local IP address, which is 192.168.2.1/24. The gateway should also be set to the router's local IP address, which is 192.168.2.1, in order to access the internet through the router.

It is possible to use both WPA and WPA2 authentication types simultaneously within a single security profile. This allows for increased flexibility and compatibility with different devices and network configurations. By supporting both authentication types, the network can accommodate devices that only support WPA or WPA2, ensuring that all devices can connect securely. This capability enhances the overall security and accessibility of the network.

Yes, it is possible to limit how many clients are able to connect to an access point using access-lists. Access-lists allow network administrators to control and filter network traffic based on specific criteria, such as the number of clients allowed to connect. By configuring access-lists on the access point, the administrator can set a limit on the maximum number of clients that can connect to the access point simultaneously.

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The level 1 (demo) license is valid for an infinite amount of time. This means that there is no expiration date or time limit for using the level 1 license. Users can continue to access and utilize the benefits of the license for as long as they need or want to.

The given subnet is 15.242.55.62/27, which means that it has a subnet mask of 27 bits. This leaves 5 bits for the host portion of the IP address. The valid hosts address range for this subnet would be from the network address + 1 to the broadcast address - 1.

The network address can be obtained by setting all the host bits to 0, which gives us 15.242.55.32. The broadcast address can be obtained by setting all the host bits to 1, which gives us 15.242.55.63. Therefore, the valid hosts address range for this subnet is 15.242.55.33-15.242.55.62.

Yes, it is possible to have both a PPTP client and a PPTP server on one MikroTik router at the same time. This allows the router to establish a PPTP connection with another network as a client, while also accepting incoming PPTP connections from other clients as a server. This feature is useful in scenarios where the router needs to connect to a remote network using PPTP, while also allowing other devices to connect to the router securely using PPTP.

Firewall NAT rules do not only process the first packet of each connection. Instead, they process all packets of a connection based on the defined NAT rules. These rules are responsible for translating the source and/or destination IP addresses and ports of network packets, allowing for proper routing and communication between different networks. Therefore, the correct answer is FALSE.

The given device is configured with an IPv4 address of 192.168.100.70 using a subnet mask of 255.255.255.252. This means that the device is using a /30 subnet, which allows for only 2 usable IP addresses. The valid IP addresses in this subnet range are 192.168.100.68 and 192.168.100.69. Since the device is already using 192.168.100.70, the valid IP address for the RouterBOARD 750 to successfully connect to the device would be 192.168.100.69.

It is not possible for a client to get an IP address but no gateway after a successful DHCP request. The gateway is an essential component of a network and is responsible for routing traffic between different networks. Without a gateway, the client would not be able to communicate with devices outside of its own network. Therefore, a DHCP server should always provide both an IP address and a gateway to clients during the DHCP request process.

The HotSpot server should be configured on the bridge1 interface because the interfaces ether2, ether3, and wlan1 are bridged in the bridge1 interface. Configuring the HotSpot server on the bridge1 interface allows it to apply the necessary settings and rules to all the interfaces that are part of the bridge, ensuring that the HotSpot functionality is applied to all connected devices across those interfaces.

The MikroTik RouterOS DHCP client can receive the IP Gateway, IP Address, and Subnet options. The IP Gateway option specifies the default gateway for the client's network, allowing it to connect to other networks. The IP Address and Subnet options provide the client with its own IP address and the subnet mask to determine its network range. These options are essential for proper network connectivity and communication.

A 23-bit subnet mask (255.255.254.0) allows for a total of 9 bits to be used for host addresses. Since each bit can be either 0 or 1, this results in 2^9 possible combinations. However, the first and last combinations are reserved for network and broadcast addresses, leaving 2^9 - 2 = 510 usable IP addresses.

SNMP (Simple Network Management Protocol) primarily uses UDP (User Datagram Protocol) for communication. UDP port 161 is used for SNMP requests and port 162 is used for SNMP traps. TCP (Transmission Control Protocol) is not commonly used for SNMP, and none of the other ports listed are associated with SNMP.

The necessary requirement for PPPoE client configuration is the interface on which the PPPoE client is going to work. This is because the interface is the connection point between the client and the PPPoE server, allowing the client to establish and maintain the PPPoE connection. Without specifying the interface, the client would not be able to connect to the PPPoE server and establish the required connection.

The frequencies available to a 802.11 b/g wireless card are 2412MHz and 2422MHz. These frequencies fall within the 2.4GHz range, which is commonly used for Wi-Fi communication. The other frequencies listed (5800MHz, 5210MHz, and 2327MHz) are not within the supported range for this type of wireless card.

The possible route statuses are Static, Connected, and Active. Static routes are manually configured by the network administrator and do not change unless manually updated. Connected routes are automatically created by the router when it detects a directly connected network. Active routes are those that are currently being used for forwarding packets. The Drop status is not mentioned in the answer, so it is not a possible route status.

The correct answer is "kind=pcq pcq-rate=256000 pcq-classifier=dst-address,kind=pcq pcq-rate=256000 pcq-classifier=src-address". This is because the question states that the desired maximum download and upload for each client is 256k. Therefore, the pcq-rate should be set to 256000. Additionally, the question does not specify whether the classifier should be based on the destination address or the source address, so both options are valid.

The action=redirect is applied in the chain=dstnat. This means that when the packet matches the rules in the destination NAT chain, it will be redirected to a different destination IP address or port. This is commonly used for port forwarding or load balancing purposes, where incoming traffic is redirected to a different internal server or port.

The connection state in MikroTik RouterOS is not the same thing as TCP state elsewhere. MikroTik RouterOS uses its own connection tracking system, which is different from the TCP state used in other systems. While TCP state refers to the specific state of a TCP connection (such as SYN_SENT, ESTABLISHED, etc.), the connection state in MikroTik RouterOS encompasses various protocols and can include states like established, invalid, new, and related. Therefore, the given answer "False" is correct.

The IP address 11.3.10.4 is publicly routable because it falls within the range of public IP addresses. The other three IP addresses (127.34.155.3, 172.16.13.23, and 192.168.1.4) are not publicly routable because they are reserved for private networks and cannot be directly accessed over the internet.

The given statement is true. Wireless connect-list allows users to prioritize their connection to one Access Point over another by changing the order of the entries. This means that users can specify which Access Point they want to connect to first, ensuring a higher level of preference for that particular Access Point. This feature is useful in situations where multiple Access Points are available, but the user wants to prioritize their connection to a specific one.

Backup files are not editable because they are created as a precautionary measure to safeguard data and restore it in case of any loss or corruption. These files are typically created in a format that cannot be easily modified or edited to prevent accidental changes or tampering with the backup data. Therefore, the statement that backup files are not editable is correct.

Route 1: dst-address=0.0.0.0/0 with gateway=192.168.0.1 (this is a default route)

Route 2: dst-address=192.168.1.0/24 with gateway=192.168.0.2

Route 3: dst-address=192.168.2.0/24 with gateway=192.168.0.3

Route 4: dst-address=192.168.3.0/26 with gateway=192.168.0.4

The destination IP 192.168.3.240 needs to be checked against each route:

192.168.3.240 does not match 0.0.0.0/0 (default route) specifically, but it is the least specific route.

192.168.3.240 does not fall within 192.168.1.0/24 or 192.168.2.0/24.

Route 4 (192.168.3.0/26) covers the IP range 192.168.3.0 to 192.168.3.63, which does not include 192.168.3.240.

Since none of the specific routes cover 192.168.3.240, the router will fall back to the default route.

Therefore, the gateway 192.168.0.1 will be used.

The statement is false because a PPPoE server can work across multiple Ethernet broadcast domains as long as there is a router connecting those domains. The router will forward the PPPoE packets between the server and the end-user host, allowing the creation of a PPPoE tunnel.

The correct answer is 1 because in a queue, the priority is usually determined by a numerical value, with lower numbers indicating higher priority. In this case, 1 has the lowest value among the given options, indicating the highest priority in the queue.

If ARP=reply-only is enabled on one router interface, the router cannot add dynamic ARP entries for that interface. The reply-only mode only allows the router to respond to ARP requests from other devices, but it does not allow the router to initiate ARP requests or add dynamic ARP entries. Therefore, the statement is false.

When backing up your router using the Export command, you have the option to edit the Export file with a standard text editor after it is created. This allows you to make any necessary changes or modifications to the file before saving it. Additionally, during the backup process, you are prompted to provide a name for the export file, which helps in organizing and identifying the backup files.

The correct answer is Transparent DNS Cache and Transparent HTTP Proxy. These actions allow you to create a transparent DNS cache, which helps in caching DNS responses for faster access, and a transparent HTTP proxy, which intercepts and handles HTTP requests on behalf of clients without their knowledge. These features are commonly used in network configurations to improve performance and security.

PPP Secrets are used for authenticating and authorizing various types of clients in a network. L2TP clients, PPP clients, PPtP clients, and PPPoE clients all require PPP Secrets for establishing a secure connection with the network. These secrets ensure that only authorized clients can access the network resources and prevent unauthorized access. Router users, on the other hand, typically use different authentication methods such as username and password or SSH keys, and do not rely on PPP Secrets for authentication.

Wireless clients (mode=station) will not work properly if bridged to the ethernet. This is because when a wireless client is bridged to the ethernet, it essentially becomes a part of the wired network and loses its ability to connect to the wireless network. As a result, it will not be able to communicate with other wireless devices or access the internet wirelessly. Therefore, the statement is false.