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Chapter 8 Review (Book2)

Quiz by Eric Jackson

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23 questions
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  • Q1
    Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
    broadcast DHCPACK
    unicast DHCPREQUEST
    unicast DHCPACK
    broadcast DHCPREQUEST
    60s
  • Q2
    A company uses DHCP servers to dynamically assign IPv4 addresses to employee workstations. The address lease duration is set as 5 days. An employee returns to the office after an absence of one week. When the employee boots the workstation, it sends a message to obtain an IP address. Which Layer 2 and Layer 3 destination addresses will the message contain?
    FF-FF-FF-FF-FF-FF and 255.255.255.255
    MAC address of the DHCP server and 255.255.255.255
    FF-FF-FF-FF-FF-FF and IPv4 address of the DHCP server
    both MAC and IPv4 addresses of the DHCP server
    120s
  • Q3
    Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?
    dynamic allocation
    pre-allocation
    manual allocation
    automatic allocation
    60s
  • Q4
    Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?
    broadcast MAC address
    client IP address
    gateway IP address
    client hardware address
    60s
  • Q5
    As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?
    DHCPOFFER
    DHCPDISCOVER
    DHCPREQUEST
    DHCPACK
    60s
  • Q6
    What is an advantage of configuring a Cisco router as a relay agent?
    It can forward both broadcast and multicast messages on behalf of clients.
    It reduces the response time from a DHCP server.
    It will allow DHCPDISCOVER messages to pass without alteration.
    It can provide relay services for multiple UDP services.
    60s
  • Q7
    An administrator issues the commands: Router(config)# interface g0/1 Router(config-if)# ip address dhcp What is the administrator trying to achieve?
    configuring the router to act as a DHCPv4 server
    configuring the router to act as a relay agent
    configuring the router to resolve IP address conflicts
    configuring the router to obtain IP parameters from a DHCPv4 server
    60s
  • Q8
    Under which circumstance would a router usually be configured as a DHCPv4 client?
    The router is intended to be used as a SOHO gateway.
    The router is meant to provide IP addresses to the hosts.
    The router has a fixed IP address.
    The administrator needs the router to act as a relay agent.
    60s
  • Q9
    Under which other circumstance would a router usually be configured as a DHCPv4 client?
    The router has a fixed IP address.
    The administrator needs the router to act as a relay agent.
    The router is meant to provide IP addresses to the hosts.
    This is an ISP requirement.
    60s
  • Q10
    A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?​
    the unique local address of the router interface that is attached to the network
    the global unicast address of the router interface that is attached to the network
    the link-local address of the router interface that is attached to the network
    the all-routers multicast address
    60s
  • Q11
    A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?
    It should use the information that is contained in the RA message exclusively.
    It should use the information that is contained in the RA message and contact a DHCPv6 server for additional information.
    It should contact a DHCPv6 server for all the information that it needs.
    It should contact a DHCPv6 server for the prefix, the prefix-length information, and an interface ID that is both random and unique.
    120s
  • Q12
    A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 service, which message does it send to a server for configuration information?
    DHCPv6 ADVERTISE
    DHCPv6 INFORMATION-REQUEST
    DHCPv6 REQUEST
    DHCPv6 SOLICIT
    120s
  • Q13
    An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured?
    RA and EUI-64
    stateless DHCPv6
    stateful DHCPv6
    SLAAC
    120s
  • Q14
    A network technician is configuring port security on a LAN switch interface. The security policy requires host MAC addresses to be learned dynamically, stored in the address table, and saved to the switch running configuration. Which command does the technician need to add to the following configuration to implement this policy? Switch(config)# interface fa0/1 Switch(config-if)# switchport mode access Switch(config-if)# switchport port-security
    Switch(config-if)# switchport port-security mac-address
    Switch(config-if)# switchport port-security maximum 40
    Switch(config-if)# switchport port-security mac-address sticky
    Switch(config-if)# switchport port-security mac-address 000B.FCFF.E880
    120s
  • Q15
    How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?
    It contacts the DHCPv6 server via a special formed ICMPv6 message.
    It checks with the IPv6 address database that is hosted by the SLAAC server.
    It sends an ARP message with the IPv6 address as the destination IPv6 address.
    It sends an ICMPv6 Neighbor Solicitation message with the IPv6 address as the target IPv6 address.
    120s

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