[GET] Cisco Chapter 5 Exam Answers
January The interface port-channel number has to be different on each switch. Which three pairs of trunking modes will establish a functional trunk link between two Cisco switches? Choose three. Which command should be used on a Cisco router or...
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CISCO Introduction to IoT Chapter 5 Quiz Answers
What information is added during encapsulation at OSI Layer 3? A host uses a default route to transfer data to another host on the same network segment. A host uses a default route to forward data to the local switch as the next hop to all destinations. A host uses a default route to identify the Layer 2 address of an end device on the local network. A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists. In a connectionless system, which of the following is correct? The destination is contacted before a packet is sent. The destination is not contacted before a packet is sent.
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The destination sends an acknowledgement to the source that indicates the packet was received. The destination sends an acknowledgement to the source that requests the next packet to be sent. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the The host is unable to communicate 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. The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network. There is no impact on communications. What is the purpose of a default gateway? Choose two. The router sends an ARP request to determine the required next hop address. The router discards the packet. The router forwards the packet toward the next hop indicated in the ARP table. The router forwards the packet to the interface indicated by the source address.
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The router forwards the packet out the interface indicated by the default route entry. In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another? Choose three.
CCNA 1 (v5.1 + v6.0) Chapter 5 Exam Answers for Ethernet
What two facts can be determined? Choose two. POST occurred normally. The boot process was interrupted. There is not enough RAM or flash on this router. A full version of the Cisco IOS was located and loaded. Which two statements are true about using full-duplex Fast Ethernet? Performance is improved with bidirectional data flow. Latency is reduced because the NIC processes frames faster. Nodes operate in full-duplex with unidirectional data flow. Performance is improved because the NIC is able to detect collisions. Full-duplex Fast Ethernet offers percent efficiency in both directions. In which situation would a technician use the show interfaces switch command?
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Problems with reachability to a remote network would likely be caused by a misconfigured default gateway or other routing issue, not a switch issue. The show mac address-table command shows the MAC address of a directly attached device. Refer to the exhibit. What conclusion can be drawn based on the partial output in the exhibit? All hosts on this network communicate in full-duplex mode. Some workstations might use an incorrect cabling type to connect to the network. There are collisions in the network that cause frames to occur that are less than 64 bytes in length. A malfunctioning NIC can cause frames to be transmitted that are longer than the allowed maximum length. The partial output shows that there are 50 giants frames longer than the allowed maximum that were injected into the network, possibly by a malfunctioning NIC.
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This conclusion can be drawn because there are only 25 collisions, so not all the 50 giants are the result of a collision. Also, because there 25 collisions, it is most likely that not all hosts are using full-duplex mode otherwise there would not be any collisions. There should be no cabling issues since the CRC error value is 0. There are 0 runts, so the collisions have not caused malformed frames to occur that are shorter than 64 bytes in length.
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The bandwidth parameter on the interface might be too high. There could be an issue with a faulty NIC. There could be too much electrical interference and noise on the link. The interface might be configured as half-duplex. Escalating CRC errors usually means that the data is being modified during transmission from the host to the switch. This is often caused by high levels of electromagnetic interference on the link. If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed? However, collisions often occur in half-duplex operations. When a connection has two different duplex configurations, the half-duplex end will experience late collisions. Collisions are found on Ethernet networks.
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Serial interfaces use technologies other than Ethernet. What is one difference between using Telnet or SSH to connect to a network device for management purposes? Telnet does not provide authentication whereas SSH provides authentication. Telnet sends a username and password in plain text, whereas SSH encrypts the username and password. SSH provides security for remote management connections to a network device.
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SSH does so through encryption for session authentication username and password as well as for data transmission. Telnet sends a username and password in plain text, which can be targeted to obtain the username and password through data capture. The network administrator wants to configure Switch1 to allow SSH connections and prohibit Telnet connections. How should the network administrator change the displayed configuration to satisfy the requirement? Use SSH version 1. Configure SSH on a different line. Modify the transport input command. What is the effect of using the switchport port-security command? All active switch ports should be manually secured using the switchport port-security command, which allows the administrator to control the number of valid MAC addresses allowed to access the port.
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This command does not specify what action will be taken if a violation occurs, nor does it change the process of populating the MAC address table. Where are dynamically learned MAC addresses stored when sticky learning is enabled with the switchport port-security mac-address sticky command? A network administrator configures the port security feature on a switch. The security policy specifies that each access port should allow up to two MAC addresses. When the maximum number of MAC addresses is reached, a frame with the unknown source MAC address is dropped and a notification is sent to the syslog server. Which security violation mode should be configured for each access port?
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What are two potential network problems that can result from ARP operation? Choose two. On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. Explain: Large numbers of ARP broadcast messages could cause momentary data communications delays. ARP table overflows are very unlikely. Multiple ARP replies resulting in the switch MAC address table containing entries that match the MAC addresses of connected nodes and are associated with the relevant switch port are required for normal switch frame forwarding operations. It is not an ARP caused network problem.
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Fill in the blank. A collision fragment, also known as a RUNT frame, is a frame of fewer than 64 bytes in length. Explain: A runt frame is a frame of fewer than 64 bytes, usually generated by a collision or a network interface failure. On a Cisco switch, port-based memory buffering is used to buffer frames in queues linked to specific incoming and outgoing ports. Which statement describes the treatment of ARP requests on the local link? They must be forwarded by all routers on the local network. They are received and processed by every device on the local network. They are received and processed only by the target device. Refer to the exhibit. The switches are in their default configuration. Which network hosts will receive the ARP request sent by host A?
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The ARP broadcast would be sent to every device on the local network. Hosts B, C, and router R1 would receive the broadcast. Router R1 would not forward the message. A switch with a default configuration connects four hosts. The ARP table for host A is shown. What happens when host A wants to send an IP packet to host D? Host A sends out the packet to the switch. The switch sends the packet only to the host D, which in turn responds. Every other host connected to the switch receives the broadcast and host D responds with its MAC address. All devices on the same network receive this broadcast. Host D will respond to this broadcast. True or False? When a device is sending data to another device on a remote network, the Ethernet frame is sent to the MAC address of the default gateway. When data is destined for a remote network of any type, the data is sent to the default gateway device, the Layer 3 device that routes for the local network.
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The ARP table in a switch maps which two types of address together? These mappings can be learned by the switch dynamically through ARP or statically through manual configuration. Match the characteristic to the forwarding method. Not all options are used. A cut-through switch can forward frames before receiving the destination address field, thus presenting less latency than a store-and-forward switch.
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