CCNA 200-125 Exam: Drag and Drop 3 With Answers

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  1. Drag and drop the items on the left to the correct sequence of an Ethernet frame.

    Answer:

    1: Preamble
    2: SFD (Start of Frame Delimiter)
    3: Destination Address
    4: Source Address
    5: Type
    6: Data
    7: FCS

  2. Drag drop about STP port roles.

    Answer:

    + alternate: elected port for the spanning tree topology as a whole
    + designated: elect port for an individual LAN segment
    + disable: port that is excluded from the spanning-tree process
    + root: path to the root bridge that excludes the root port

  3. Drag drop about DNS related commands.

    Answer:

    + ip dns-server: enable the DNS server on the device
    + ip domain list: specifies a sequence of domain names.
    + ip domain lookup: enable dns lookup
    + ip domain name: specifies the default domain to append to unqualified host name.
    + ip host: statically map on ip address to host name
    + ip name-server: identified a DNS server to provide lookup service

  4. Drag drop about TCP and UDP. Classify which protocols run TCP or UDP.

    Answer:

    TCP:
    + SMTP
    + SSH
    + FTP

    UDP:
    + SNMP
    + DHCP
    + TFTP

  5. Arrange in the order of creation of GRE tunnel

    Answer:

    Step 1: Create tunnel interface
    Step 2: Specify carrier protocol (like tunnel GRE)
    Step 3: Specify passenger protocol (IPv4 or IPv6)
    Step 4: Add source and destination on tunnel interface

  6. Drag and Drop Question on TCP and UDP.

    Answer:

    TCP:
    + Sends Transmission in Sequence
    + Uses a lower transmission rate to ensure reliability
    + Transmits packet as stream
    UDP:
    + Transmits packets individually
    + Uses higher transmission rate to support latency-sensitive apps
    + Transmissions include an 8-byte header

  7. Drag and Drop on MAC addresses.

    Answer:

    + Dynamic MAC address: MAC that is learned by the switch through normal traffic
    + MAC ACL: feature that determines whether incoming traffic will be allowed
    + MAC address table: associates a learned MAC address with its connected interface
    + MAC learning: adding a previously unknown MAC into the address table
    + MAC aging: removing an inactive MAC after a specified time
    + Static MAC: MAC address that remains in the MAC address table after reboot

  8. Drag and drop the PPPoE packet type on the left to the corresponding description on the right.

    Answer:

    + PADI – A packet that is sent with the destination_addr set to the broadcast address. The packet
    indicates the type of service requested.
    + PADO – A packet that is sent with the destination_addr set to the unicast address of the PPPoE
    client. The packet contains an offer for the client
    + PADR – A packet that is sent from the PPPoE client with the destination_addr set to the chosen
    access concentrator. The packet contains a session request from the client
    + PADS – A packet that is sent as confirmation to the client. The packet contains the unique PPPoE
    session ID
    + PADT – A packet that is sent to terminate the PPPoE session.

    Show (Hide) Explanation/Reference
    + PPPoE Active Discovery Initiation (PADI)
    + PPPoE Active Discovery Offer (PADO)
    + PPPoE Active Discovery Request (PADR)
    + PPPoE Active Discovery Session-Confirmation (PADS)
    + PPPoE Active Discovery Termination (PADT)
  9. Drag and drop the PPPoE message types from the left into the sequence in which PPPoE messages
    are sent on the right.

    Answer:

    1. PADI
    2. PADO
    3. PADR
    4. PADS

  10. Drag and Drop on Wireless LAN Controller

    Answer:

    + Dynamic RF Feature: Access points auto adjust signal strength
    + Easy Deployment Process: Controller provides centralized management of users and VLANs
    + Optimized user performance: Controller uses loadbalancing to maximize throughput
    + Easy upgrade process: Controller image auto deployed to access Points


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