CIS Exam 3 Review

Which statement about host forwarding decisions is true? A host cannot ping itself. A remote destination host is on the same local network as the sending host. Local hosts can reach each other without the help of a router. Routing is enabled on switches to discover the best path to a destination.

Local hosts can reach each other without the help of a router.

Where is the ARP table stored on a device? ROM flash NVRAM RAM

RAM

Which statement is true? A default gateway is required to send packets to other hosts on the local network. The default gateway address is the IP address of a switch on a remote network. The default gateway address is the IP address of the router on the local network. Traffic can be forwarded outside the local network only if there is no default gateway.

The default gateway address is the IP address of the router on the local network

What does a code O next to a route in the routing table indicate? a directly connected route a route with an administrative distance of 0 a gateway of last resort a route learned dynamically from OSPF

a route learned dynamically from OSPF

Which delivery method does not guarantee that a packet will be delivered fully without errors? connectionless best effort media independent

best effort

What type of route is also known as a gateway of last resort? static route remote route default route directly connected route

default route

Which are the two most commonly referenced fields in an IPv4 packet header that indicates where the packet is coming from and where it is going? (Choose two.) destination IP address protocol TTL differentiated services source IP address

destination IP address source IP address

Defines the application type to the upper-layer protocol.

destination IPv4 address

If a packet's destination IPv4 address is on a remote network, the device will search the ARP table for the destination MAC address. Select one: True False

false

In IPv6, source and destination IPv6 address change while the packets travel from source to destination. Select one: True False

false

Routing tables maintain a table of IPv4 to MAC address mappings in local networks. True False

false

Which field is used to detect corruption in the IPv4 header? header checksum time-to-live (TTL) protocol differentiated services (DS)

header checksum

When this value reaches 0, the sender is notified that the packet was not delivered.

hop limit

What two functions are provided by ARP? (Choose two.) maintains a table of IPv4 addresses to domain names maintains a table of IPv4-to-MAC address mappings maintains a table of IPv6-to-MAC address mappings resolves IPv4 addresses to domain names resolves IPv4 addresses to MAC addresses resolves IPv6 addresses to MAC addresses

maintains a table of IPv4-to-MAC address mappings resolves IPv4 addresses to MAC addresses

To what type of address are ICMPv6 Neighbor Solicitation messages sent? unicast multicast broadcast

multicast

Defines the packet size.

protocol

Which field includes common values such as ICMP (1), TCP (6), and UDP (17) header checksum TTL (time-to-live) protocols differentiated services

protocols

Which two ICMPv6 messages are used in SLAAC? (Choose two.) neighbor advertisement neighbor solicitation router advertisement router solicitation

router advertisement router solicitation

What destination MAC address would be included in a frame sent from a source device to a destination device on a remote local network? the broadcast MAC address FF-FF-FF-FF-FF-FF the MAC address of the destination device the MAC address of the local router interface

the MAC address of the local router interface

ARP poisoning is a type of security attack on infected devices. Select one: True False

true

IPv6 improves IPv4 by increasing the IP address space and providing a simplified header at the network layer. Select one: True False

true

Can be set to use the same pathway flow so that packets are not reordered upon delivery.

flow label

What destination MAC address would be included in a frame sent from a source device to a destination device on the same local network? the broadcast MAC address FF-FF-FF-FF-FF-FF the MAC address of the destination device the MAC address of the local router interface

the MAC address of the destination device

Identifies the packet under a field set to 0110.

version