Cisco Chapter 6 Exam Answers 2021


  • The LED on the network card is off. What is the most likely cause of this problem? The gateway needs to be fixed. The network cable is faulty. The network switch is faulty. Explanation: The network card is working if the loopback address can be...
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  • Some of the lab exercises involve studying the characteristics of computer viruses and worms. Correct Question 12 of 24 Question A software engineer is involved in the development of an application. For usability tests, the engineer needs to make...
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  • Explanation: When a client has UDP datagrams to send, it just sends the datagrams. What happens if the first packet of a TFTP transfer is lost? The client will wait indefinitely for the reply. The TFTP application will retry the request if a reply is not received. The user is now reporting that the workstation cannot connect to the network. What is a possible cause of the problem?
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  • VPN traffic is encrypted only between the interconnecting devices, and internal hosts have no knowledge that a VPN is used. Which is a requirement of a site-to-site VPN? It requires hosts to use VPN client software to encapsulate traffic. It requires the placement of a VPN server at the edge of the company network. It requires a VPN gateway at each end of the tunnel to encrypt and decrypt traffic. Explanation: Site-to-site VPNs are static and are used to connect entire networks. The VPN gateway is responsible for encapsulating the traffic and forwarding it through the VPN tunnel to a peer gateway at the other end which decapsulates the traffic. What is the function of the Diffie-Hellman algorithm within the IPsec framework? DH Diffie-Hellman is an algorithm used for key exchange. DH is a public key exchange method that allows two IPsec peers to establish a shared secret key over an insecure channel.
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  • It is designed to provide an additional opportunity to practice the skills and knowledge presented in the chapter and to prepare for the Chapter Exam. What are two functions that are provided by the network layer? Choose two. IP addresses supply unique identifiers for the source and destination. The network layer provides connectionless, best-effort delivery. Devices rely on higher layers to supply services to processes. How does the network layer use the MTU value? The network layer depends on the higher level layers to determine the MTU. The network layer depends on the data link layer to set the MTU, and adjusts the speed of transmission to accommodate it. The MTU is passed to the network layer by the data link layer. To increase speed of delivery, the network layer ignores the MTU.
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  • Explanation: The data link layer indicates to the network layer the MTU for the medium that is being used. The network layer uses that information to determine how large the packet can be when it is forwarded. When packets are received on one medium and forwarded on a medium with a smaller MTU, the network layer device can fragment the packet to accommodate the smaller size. If there are two or more possible routes to the same destination, the metric is used to determine which route is used in the routing table.
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  • Which statement about router interfaces is true? Once the no shutdown command is given, a router interface is active and operational. A configured and activated router interface must be connected to another device in order to operate. Which command displays a summary chart of all router interfaces, their IP addresses, and their current operational status? A technician is manually configuring a computer with the necessary IP parameters to communicate over the corporate network.
    Link: https://stats.stackexchange.com/questions/tagged/vif
  • What else has to be configured for Internet access? A computer has to send a packet to a destination host in the same LAN. How will the packet be sent? The packet will be sent to the default gateway first, and then, depending on the response from the gateway, it may be sent to the destination host. The packet will be sent directly to the destination host. The packet will be sent only to the default gateway. Refer to the exhibit. Fill in the blank. A packet leaving PC-1 has to traverse 3 hops to reach PC? In a router, ROM is the nonvolatile memory where the diagnostic software, the bootup instructions, and a limited IOS are stored.
    Link: https://ciatec.com/2019/05/information-security-awareness-assessment-quiz-for-employees/
  • Match the packets with their destination IP address to the exiting interfaces on the router. Not all targets are used. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question or complete the task. Match the configuration mode with the command that is available in that mode. Not all options are used. Sort elements.
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  • Explanation: There are several recommended STP stability mechanisms to help mitigate STP manipulation attacks: PortFast — Used to immediately bring an interface configured as an access or trunk port to the forwarding state from a blocking state. This is applied to all end-user ports. Root guard — Prevents a switch from becoming the root switch. Applied to all ports where root switch should not be located. Loop guard — Detects unidirectional links to prevent alternate or root ports from becoming designated ports. Applied to all ports that are or can become non-designated. How can a user connect to the Cisco Cloud Web Security service directly? A client can use the Cisco CWS service through these products.
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  • This prevents rogue switches from being added to the network. BPDU guard should only be applied to all end-user ports. Which mitigation technique would prevent rogue servers from providing false IP configuration parameters to clients? Search for:.
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  • Differentiated Services Explain: It is the Protocol field in the IP header that identifies the upper-layer protocol the packet is carrying. The Version field identifies the IP version. The Differential Services field is used for setting packet priority. The Identification field is used to reorder fragmented packets. What is one advantage that the IPv6 simplified header offers over IPv4? Refer to the exhibit. Which route from the PC1 routing table will be used to reach PC2?
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  • The graphic contains a table that has five columns. The column headings and values are as follows. The column one heading is Network Destination and the value is The column two heading is Netmask and the value is The column three heading is Gateway and the value is On-link. The column four heading is Interface and the value is The column five heading is Metric and the value is The column one heading is Network Destination and the value is 0. The column two heading is Netmask and the value is 0.
    Link: https://answers.yahoo.com/question/index?qid=20120613170200AAuBYkD

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