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TEST BORRADO, QUIZÁS LE INTERESENetwork Fundamentals

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Título del test:
Network Fundamentals

Descripción:
San Francisco

Autor:
BYG
(Otros tests del mismo autor)

Fecha de Creación:
08/04/2021

Categoría:
Personal

Número preguntas: 70
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Temario:
Refer to the exhibit. Which type of route does R1 use to reach host 10.10.13.10/32? default route network route host route floating static route.
Refer to the exhibit. Which prefix does Router1 use for traffic to Host A? 10.10.10.0/28 10.10.13.0/25 10.10.13.144/28 10.10.13.208/29.
Drag and drop the descriptions of file-transfer protocols from the left onto the correct protocols on the right. Provides realiability when loading an IOS image up on boot up Does not require user authentication Use Port 69 Uses Ports 20 and 21 Uses TCP Uses UDP.
A frame that enters a switch fails the Frame Check Sequence. Which two interface counters are incremented? (Choose two.) input errors frame giants CRC runts.
Drag and drop the IPv4 network subnets from the left onto the correct usable host ranges on the right. 172.28.228.144/18 172.28.228.144/21 172.28.228.144/23 172.28.228.144/25 172.28.228.144/29.
How do TCP and UDP differ in the way that they establish a connection between two endpoints? TCP uses the three-way handshake, and UDP does not guarantee message delivery. TCP uses synchronization packets, and UDP uses acknowledgment packets. UDP provides reliable message transfer, and TCP is a connectionless protocol. UDP uses SYN, SYN ACK, and FIN bits in the frame header while TCP uses SYN, SYN ACK, and ACK bits.
Which 802.11 frame type is Association Response? management protected frame action control.
In which way does a spine-and-leaf architecture allow for scalability in a network when additional access ports are required? A spine switch and a leaf switch can be added with redundant connections between them. A spine switch can be added with at least 40 GB uplinks. A leaf switch can be added with connections to every spine switch. A leaf switch can be added with a single connection to a core spine switch.
Which statement identifies the functionality of virtual machines? The hypervisor communicates on Layer 3 without the need for additional resources. Each hypervisor can support a single virtual machine and a single software switch. The hypervisor can virtualize physical components including CPU, memory, and storage. Virtualized servers run most efficiently when they are physically connected to a switch that is separate from the hypervisor.
Which command automatically generates an IPv6 address from a specified IPv6 prefix and MAC address of an interface? ipv6 address dhcp ipv6 address 2001:DB8:5:112::/64 eui-64 ipv6 address autoconfig ipv6 address 2001:DB8:5:112::2/64 link-local.
When configuring IPv6 on an interface, which two IPv6 multicast groups are joined? (Choose two.) 2000::/3 2002::5 FC00::/7 FF02::1 FF02::2.
Refer to the exhibit. Drag and drop the networking parameters from the left onto the correct values on the right. Default Gateway Host IP address NIC MAC address NIC vendor OUI Subnet mask.
What is the default behavior of a Layer 2 switch when a frame with an unknown destination MAC address is received? The Layer 2 switch forwards the packet and adds the destination MAC address to its MAC address table. The Layer 2 switch sends a copy of a packet to CPU for destination MAC address learning. The Layer 2 switch floods packets to all ports except the receiving port in the given VLAN. The Layer 2 switch drops the received frame.
An engineer must configure a /30 subnet between two routes. Which usable IP address and subnet mask combination meets this criteria? interface e0/0 description to XX-AXXX:XXXXX ip address 10.2.1.3 255.255.255.252 interface e0/0 description to XX-AXXX:XXXXX ip address 192.168.1.1 255.255.255.248 interface e0/0 description to XX-AXXX:XXXXX ip address 172.16.1.4 255.255.255.248 interface e0/0 description to XX-AXXX:XXXXX ip address 209.165.201.2 225.255.255.252.
Which network allows devices to communicate without the need to access the Internet? 172.9.0.0/16 172.28.0.0/16 192.0.0.0/8 209.165.201.0/24.
Refer to the exhibit. Which statement explains the configuration error message that is received? It belongs to a private IP address range. The router does not support /28 mask. It is a network IP address. It is a broadcast IP address.
Which IPv6 address type provides communication between subnets and cannot route on the Internet? link-local unique local multicast global unicast.
Which IPv6 address block sends packets to a group address rather than a single address? 2000::/3 FC00::/7 FE80::/10 FF00::/8.
What are two reasons that cause late collisions to increment on an Ethernet interface? (Choose two.) when Carrier Sense Multiple Access/Collision Detection is used when one side of the connection is configured for half-duplex when the sending device waits 15 seconds before sending the frame again when a collision occurs after the 32nd byte of a frame has been transmitted when the cable length limits are exceeded.
What is a benefit of using a Cisco Wireless LAN Controller? It eliminates the need to configure each access point individually. Central AP management requires more complex configurations. Unique SSIDs cannot use the same authentication method. It supports autonomous and lightweight APs.
Which action is taken by switch port enabled for PoE power classification override? If a monitored port exceeds the maximum administrative value for power, the port is shutdown and err- disabled. When a powered device begins drawing power from a PoE switch port, a syslog message is generated. As power usage on a PoE switch port is checked, data flow to the connected device is temporarily paused. If a switch determines that a device is using less than the minimum configured power, it assumes the device has failed and disconnects it.
What occurs to frames during the process of frame flooding? Frames are sent to all ports, including those that are assigned to other VLANs Frames are sent to every port on the switch that has a matching entry in MAC address table. Frames are sent to every port on the switch in the same VLAN except from the originating port. Frames are sent to every port on the switch in the same VLAN.
Which function does the range of private IPv4 addresses perform? allows multiple companies to each use the same addresses without conflicts provides a direct connection for hosts from outside of the enterprise network ensures that NAT is not required to reach the Internet with private range addressing enables secure communications to the Internet for all external hosts.
Which action must be taken to assign a global unicast IPv6 address on an interface that is derived from the MAC address of that interface? Explicitly assign a link-local address Disable the EUI-64 bit process Enable SLAAC on an interface Configure a stateful DHCPv6 server on the network.
Several new coverage cells are required to improve the Wi-Fi network of an organization. Which two standard designs are recommended? (Choose two.) 5GHz provides increased network capacity with up to 23 nonoverlapping channels. 5GHz channel selection requires an autonomous access point. Cells that overlap one another are configured to use nonoverlapping channels. Adjacent cells with overlapping channels use a repeater access point. For maximum throughput, the WLC is configured to dynamically set adjacent access points to the channel.
How do TCP and UDP differ in the way they provide reliability for delivery of packets? TCP does not guarantee delivery or error checking to ensure that there is no corruption of data, UDP provides message acknowledgement and retransmits data if lost. TCP provides flow control to avoid overwhelming a receiver by sending too many packets at once, UDP sends packets to the receiver in a continuous stream without checking. TCP is a connectionless protocol that does not provide reliable delivery of data; UDP is a connection- oriented protocol that uses sequencing to provide reliable delivery. TCP uses windowing to deliver packets reliably; UDP provides reliable message transfer between hosts by establishing a three-way handshake.
What are two differences between optical-fiber cabling and copper cabling? (Choose two.) A BNC connector is used for fiber connections The glass core component is encased in a cladding The data can pass through the cladding Light is transmitted through the core of the fiber Fiber connects to physical interfaces using RJ-45 connections.
How does CAPWAP communicate between an access point in local mode and a WLC? The access point must not be connected to the wired network, as it would create a loop The access point must be connected to the same switch as the WLC The access point must directly connect to the WLC using a copper cable The access point has the ability to link to any switch in the network, assuming connectivity to the WLC.
Which IPv6 address block forwards packets to a multicast address rather than a unicast address? 2000::/3 FC00::/7 FE80::/10 FF00::/12.
What is the difference regarding reliability and communication type between TCP and UDP? TCP is reliable and is a connectionless protocol; UDP is not reliable and is a connection-oriented protocol. TCP is not reliable and is a connectionless protocol; UDP is reliable and is a connection-oriented protocol. TCP is not reliable and is a connection-oriented protocol; UDP is reliable and is a connectionless protocol. TCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol.
What are two descriptions of three-tier network topologies? (Choose two.) The distribution layer runs Layer 2 and Layer 3 technologies The network core is designed to maintain continuous connectivity when devices fail The access layer manages routing between devices in different domains The core layer maintains wired connections for each host The core and distribution layers perform the same functions.
Which type of IPv6 address is publicly routable in the same way as IPv4 public addresses? multicast unique local link-local global unicast.
What is the expected outcome when an EUI-64 address is generated? The interface ID is configured as a random 64-bit value The characters FE80 are inserted at the beginning of the MAC address of the interface The seventh bit of the original MAC address of the interface is inverted The MAC address of the interface is used as the interface ID without modification.
A corporate office uses four floors in a building. Floor 1 has 24 users. Floor 2 has 29 users. Floor 3 has 28 users. Floor 4 has 22 users. Which subnet summarizes and gives the most efficient distribution of IP addresses for the router configuration? 192.168.0.0/24 as summary and 192.168.0.0/28 for each floor 192.168.0.0/23 as summary and 192.168.0.0/25 for each floor 192.168.0.0/25 as summary and 192.168.0.0/27 for each floor 192.168.0.0/26 as summary and 192.168.0.0/29 for each floor.
Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users to the network. Which IPv4 network and subnet mask combination does the engineer assign to minimize wasting addresses? 10.10.225.48 255.255.255.240 10.10.225.32 255.255.255.240 10.10.225.48 255.255.255.224 10.10.225.32 255.255.255.224.
What is a characteristic of spine-and-leaf architecture? Each link between leaf switches allows for higher bandwidth. It provides greater predictability on STP blocked ports. It provides variable latency. Each device is separated by the same number of hops.
An office has 8 floors with approximately 30-40 users per floor. What command must be configured on the router Switched Virtual Interface to use address space efficiently? ip address 192.168.0.0 255.255.0.0 ip address 192.168.0.0 255.255.254.0 ip address 192.168.0.0 255.255.255.128 ip address 192.168.0.0 255.255.255.224.
Drag and drop the descriptions of IP protocol transmissions from the left onto the IP traffic types on the right. Sends transmissions in sequence transmissions include an 8-byte header transmits packets as a stream transmits packets individually uses a higher transmission rate to support latency-sensitive applications uses a lower transmission rate to ensure reliability.
A device detects two stations transmitting frames at the same time. This condition occurs after the first 64 bytes of the frame is received. Which interface counter increments? runt collision Late collision CRC.
Refer to the exhibit. Which outcome is expected when PC_A sends data to PC_B? The source MAC address is changed. The destination MAC address is replaced with ffff.ffff.ffff. The source and destination MAC addresses remain the same. The switch rewrites the source and destination MAC addresses with its own.
Using direct sequence spread spectrum, which three 2.4-GHz channels are used to limit collisions? 5,6,7 1,2,3 1,6,11 1,5,10.
How do TCP and UDP differ in the way they guarantee packet delivery? TCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only TCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only.
A wireless administrator has configured a WLAN; however, the clients need access to a less congested 5-GHz network for their voice quality. What action must be taken to meet the requirement? enable Band Select enable DTIM enable RX-SOP enable AAA override.
Drag and drop the application protocols from the left onto the transport protocols that is uses on the right. DHCP FTP SMTP SSH SNMP TFTP.
What is the destination MAC address of a broadcast frame? 00:00:0c:07:ac:01 ff:ff:ff:ff:ff:ff 43:2e:08:00:00:0c 00:00:0c:43:2e:08 00:00:0c:ff:ff:ff.
For what two purposes does the Ethernet protocol use physical addresses? (choose two) to uniquely identify devices at Layer 2 to allow communication with devices on a different network to differentiate a Layer 2 frame from a Layer 3 packet to establish a priority system to determine which device gets to transmit first to allow communication between different devices on the same network to allow detection of a remote device when its physical address is unknown.
Drag and drop the networking parameters from the left on to the correct values on the right. SMTP SNMP TFTP VOIP SSH FTP.
Which component of an Ethernet frame is used to notify a host that traffic is coming? start of frame delimiter Type field preamble Data field.
You are configuring your edge routers interface with a public IP address for Internet connectivity. The router needs to obtain the IP address from the service provider dynamically. Which command is needed on interface FastEthernet 0/0 to accomplish this? ip default-gateway ip route ip default-network ip address dhcp ip address dynamic.
Which two statements about the purpose of the OSI model are accurate? (Choose two.) Defines the network functions that occur at each layer Facilitates an understanding of how information travels throughout a network Changes in one layer do not impact other layer Ensures reliable data delivery through its layered approach.
Which three statements about MAC addresses are correct? (Choose three.) To communicate with other devices on a network, a network device must have a unique MAC address The MAC address is also referred to as the IP address The MAC address of a device must be configured in the Cisco IOS CLI by a user with administrative privileges A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware An example of a MAC address is 0A:26:B8:D6:65:90 A MAC address contains two main components, the first of which identifies the network on which the host resides and the second of which uniquely identifies the host on the network.
Which technique can you use to route IPv6 traffic over an IPv4 infrastructure? NAT 6 to 4 tunneling L2TPv3 dual-stack.
Refer to the exhibit. A network technician is asked to design a small network with redundancy. The exhibit represents this design, with all hosts configured in the same VLAN. What conclusions can be made about this design? This design will function as intended. Spanning-tree will need to be used. The router will not accept the addressing scheme. The connection between switches should be a trunk. The router interfaces must be encapsulated with the 802.1Q protocol.
Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.) It establishes a static route to the 172.16.3.0 network. It establishes a static route to the 192.168.2.0 network. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. It uses the default administrative distance. It is a route that would be used last if other routes to the same destination exist.
What are two benefits of private IPv4 IP addresses? (Choose two.) They are routed the same as public IP addresses. They are less costly than public IP addresses. They can be assigned to devices without Internet connections. They eliminate the necessity for NAT policies. They eliminate duplicate IP conflicts.
What are two benefits that the UDP protocol provide for application traffic? (Choose two.) UDP traffic has lower overhead than TCP traffic UDP provides a built-in recovery mechanism to retransmit lost packets The CTL field in the UDP packet header enables a three-way handshake to establish the connection UDP maintains the connection state to provide more stable connections than TCP The application can use checksums to verify the integrity of application data.
Which two goals reasons to implement private IPv4 addressing on your network? (Choose two.) Comply with PCI regulations Conserve IPv4 address Reduce the size of the forwarding table on network routers Reduce the risk of a network security breach Comply with local law.
Which WAN access technology is preferred for a small office / home office architecture? broadband cable access frame-relay packet switching dedicated point-to-point leased line Integrated Services Digital Network switching.
Which two WAN architecture options help a business scalability and reliability for the network? (Choose two.) asychronous routing single-homed branches dual-homed branches static routing dynamic routing.
What is the binary pattern of unique ipv6 unique local address? 00000000 11111100 11111111 11111101.
Which two options are the best reasons to use an IPV4 private IP space? (Choose two.) to enable intra-enterprise communication to implement NAT to connect applications to conserve global address space to manage routing overhead.
Refer to the exhibit. When PC1 sends a packet to PC2, the packet has which source and destination IP address when it arrives at interface Gi0/0 on router R2? source 192.168.10.10 and destination 10.10.2.2 source 192.168.20.10 and destination 192.168.20.1 source 192.168.10.10 and destination 192.168.20.10 source 10.10.1.1 and destination 10.10.2.2.
What is the same for both copper and fiber interfaces when using SFP modules? They support an inline optical attenuator to enhance signal strength They accommodate single-mode and multi-mode in a single module They provide minimal interruption to services by being hot-swappable They offer reliable bandwidth up to 100 Mbps in half duplex mode .
What are two functions of a server on a network? (Choose two.) Handles requests from multiple workstations at the same time Achieves redundancy by exclusively using virtual server clustering Housed solely in a data center that is dedicated to a single client Runs the same operating system in order to communicate with other servers Runs applications that send and retrieve data for workstations that make requests.
Which function is performed by the collapsed core layer in a two-tier architecture? enforcing routing policies marking interesting traffic for data policies applying security policies attaching users to the edge of the network.
What is the primary function of a Layer 3 device? to transmit wireless traffic between hosts to analyze traffic and drop unauthorized traffic from the Internet to forward traffic within the same broadcast domain to pass traffic between different networks.
Which two functions are performed by the core layer in a three-tier architecture? (Choose two.) Provide uninterrupted forwarding service Inspect packets for malicious activity Ensure timely data transfer between layers Provide direct connectivity for end user devices Police traffic that is sent to the edge of the network.
What is a recommended approach to avoid co-channel congestion while installing access points that use the 2.4 GHz frequency? different nonoverlapping channels one overlapping channel one nonoverlapping channel different overlapping channels.
A manager asks a network engineer to advise which cloud service models are used so employees do not have to waste their time installing, managing, and updating software that is only used occasionally. Which cloud service model does the engineer recommend? infrastructure-as-a-service platform-as-a-service business process as service to support different types of service software-as-a-service.
What are two functions of a Layer 2 switch? (Choose two.) acts as a central point for association and authentication servers selects the best route between networks on a WAN moves packets within a VLAN moves packets between different VLANs makes forwarding decisions based on the MAC address of a packet.
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